v0.74.2

- Creates a Benchmark Module to test Performance
- Migrates from GSon to Jackson for Performance Gains, adapts all serializers accordingly
- Recreates Hex encoding/decoding classes for Performance.
- Migrates NIP24 to the new ByteArray Concat encoding.
- Removes support for Lenient choices in the. events.
- Reorganizes Nostr Events dependencies.
- Refactors TLV's and NIP-19 dependencies.
- Adds a Large DB for signature checks.

.github/workflows/create-release.yml

@@ -47,7 +47,7 @@ jobs:
           keyPassword: ${{ secrets.KEY_PASSWORD }}
 
       - name: Build APK
-        run: ./gradlew assembleRelease --stacktrace --no-daemon
+        run: ./gradlew assembleRelease --stacktrace
 
       - name: Sign APK (Google Play)
         uses: r0adkll/sign-android-release@v1
@@ -76,7 +76,7 @@ jobs:
           tag_name: ${{ github.ref }}
           release_name: Release ${{ github.ref }}
           draft: false
-          prerelease: false
+          prerelease: true
 
       # Google Play APK
       - name: Upload Play APK Universal Asset
@@ -85,7 +85,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }} 
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
           asset_path: app/build/outputs/apk/play/release/app-play-universal-release-unsigned-signed.apk
           asset_name: amethyst-googleplay-universal-${{ github.ref_name }}.apk
           asset_content_type: application/zip

.idea/.gitignore

@@ -1,3 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml

.idea/.name

@@ -1 +0,0 @@
-Amethyst

.idea/inspectionProfiles/Project_Default.xml

@@ -1,40 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
-      <option name="composableFile" value="true" />
-      <option name="previewFile" value="true" />
-    </inspection_tool>
-  </profile>
-</component>

.idea/kotlinc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="KotlinJpsPluginSettings">
-    <option name="version" value="1.8.10" />
+    <option name="version" value="1.9.0" />
   </component>
 </project>

PRIVACY.md

@@ -1,13 +1,48 @@
-# Amethyst Privacy Policy & Terms of Use
+# Amethyst Privacy Policy and Terms of Use
 
-Effective as of Jan 20, 2023.
+## Privacy Policy
 
-The Amethyst app for Android does not collect or process any personal information from its users. The app is used to connect to third-party Nostr servers (also called Relays) that may or may not collect personal information and are not covered by this privacy policy. Each third-party relay server comes equipped with its own privacy policy and terms of use that can be viewed through the app or through that server's website. The developers of this open source project or maintainers of the distribution channels (app stores) do not have access to the data located in the user's phone. Accounts are fully maintained by the user. We do not have control over them. 
+Effective as of Jun 12, 2023
 
-Data from connected accounts is only stored locally on the device when it is required for functionality and performance of Amethyst. This data is strictly confidental and cannot be accessed by other apps (on non-rooted devices). Phone data can be deleted by clearing Amethyst's local storage or uninstalling the app.
+The Amethyst app for Android does not collect or process any personal information from its users. The app is used to connect to third-party Nostr servers (also called Relays) that may or may not collect personal information and are not covered by this privacy policy. Each third-party relay server comes equipped with its own privacy policy and terms of use that can be viewed through the app or through that server's website. The developers of this open-source project or maintainers of the distribution channels (app stores) do not have access to the data located in the user's phone. Accounts are fully maintained by the user. We do not have control over them. 
 
-You cannot use Amethyst to submit Objectionable Content to relays. Objectionable Content includes, but is not limited to: (i) sexually explicit materials; (ii) obscene, defamatory, libelous, slanderous, violent and/or unlawful content or profanity; (iii) content that infringes upon the rights of any third party, including copyright, trademark, privacy, publicity or other personal or proprietary right, or that is deceptive or fraudulent; (iv) content that promotes the use or sale of illegal or regulated substances, tobacco products, ammunition and/or firearms; and (v) illegal content related to gambling.
+The app may collect a per-device token, your public key, and a preferred Relay to connect to and provide push notification services through Google's Firebase Cloud Messaging. Other than that, the data from connected accounts are only stored locally on the device when it's required for the functionality and performance of Amethyst. This data is strictly confidential and cannot be accessed by other apps (on non-rooted devices). Phone data can be deleted by clearing Amethyst's local storage or uninstalling the app.
 
-We reserve the right to modify this Privacy Policy at any time. Any modifications to this Privacy Policy will be effective upon our posting the new terms and/or upon implementation of the new changes on the Service (or as otherwise indicated at the time of posting). In all cases, your continued use of the app after the posting of any modified Privacy Policy indicates your acceptance of the terms of the modified Privacy Policy.
+Amethyst offers a few options to upload pictures and videos in order to post them online. You can choose the server at your discretion. Similar to relays, such services are independent of the app and have their own privacy policy and terms of use. 
+
+### Privacy with Relays services
+
+Your internet protocol (IP) address is exposed to the relays you connect to. If you want to improve your privacy, consider utilizing a service that masks your IP address (e.g. a VPN) from trackers online.
+
+The relay can also see which public keys you are using and what information you are requesting from the network. Your public key is tied to your IP address and your relay filters.
+
+Relays have all your data in raw text. They know your IP, your name, your location (guessed from IP), your pub key, all your contacts, and other relays, and can read every action you do (post, like, boost, quote, report, etc) with the exception of the content inside Private Zaps and Private DMs.
+
+While the content of direct messages (DMs) is only visible to you, and your DM Nostr counterparty, everyone can see when you and your counterparty are DM-ing each other. Image uploads in the DM screen use one of the chosen image servers and simply paste the image link on the DM text. Your uploaded pictures are available to anyone with that direct link. 
+
+### Visibility & Permanence of Your Content on Nostr Relays
+
+#### Information Visibility
+
+Content that you share can be shared with other relays by any user of the network. 
+Information that you share is publicly visible to anyone reading from relays that have your information. Your information may also be visible to Nostr users who do not share relays with you.
+
+#### Information Permanence
+
+Information shared on Nostr should be assumed permanent for privacy purposes. There is no way to guarantee deleting or editing any content once posted.
+
+## Terms of Use
+
+### For versions downloaded from Google's Play Store
+
+You cannot use the Amethyst app for Android to submit Objectionable Content to relays. Objectionable Content includes but is not limited to: (i) sexually explicit materials; (ii) obscene, defamatory, libelous, slanderous, violent and/or unlawful content or profanity; (iii) content that infringes upon the rights of any third party, including copyright, trademark, privacy, publicity or other personal or proprietary rights, or that is deceptive or fraudulent; (iv) content that promotes the use or sale of illegal or regulated substances, tobacco products, ammunition and/or firearms; and (v) illegal content related to gambling.
+
+### For versions downloaded from F-Droid
+
+We do not control the distribution of the application in F-Droid. Legal matters should be resolved between the user and F-Droid. 
+
+## Other Notes
+
+We reserve the right to modify this Privacy Policy and Terms of Use at any time. Any modifications to this document will be effective upon our posting of the new terms and/or upon implementation of the new changes on the Service (or as otherwise indicated at the time of posting). In all cases, your continued use of the app after the posting of any modified Privacy Policy and Terms of Use indicates your acceptance of the terms of the modified Privacy Policy and/or Terms of Use.
 
 If you have any questions about Amethyst or this privacy policy, you can send a message to amethyst@vitorpamplona.com

README.md

@@ -4,6 +4,11 @@
 
 Amethyst brings the best social network to your Android phone. Just insert your Nostr private key and start posting. 
 
+[<img src="./docs/design/obtainium.png"
+alt="Get it on Obtaininum"
+height="80">](https://github.com/ImranR98/Obtainium)
+[<img src="https://github.com/machiav3lli/oandbackupx/raw/034b226cea5c1b30eb4f6a6f313e4dadcbb0ece4/badge_github.png" alt="Get it on GitHub"
+height="80">](https://github.com/vitorpamplona/amethyst/releases)
 [<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png"
      alt="Get it on F-Droid"
      height="80">](https://f-droid.org/packages/com.vitorpamplona.amethyst/)
@@ -11,15 +16,15 @@ Amethyst brings the best social network to your Android phone. Just insert your
      alt="Get it on Google Play"
      height="80">](https://play.google.com/store/apps/details?id=com.vitorpamplona.amethyst)
 
-Or get the latest APK from the [Releases Section](https://github.com/vitorpamplona/amethyst/releases/latest).
-
 # Current Features
 
-- [x] Event Builders / WebSocket Subscriptions (NIP-01, NIP-15)
+- [x] Event Builders / WebSocket Subscriptions (NIP-01)
 - [x] Home Feed
 - [x] Notifications Feed
 - [x] Global Feed
-- [x] Reactions (likes NIP-25, boost, reply)
+- [x] Replies and mentions (NIP-10)
+- [x] Reactions (NIP-25)
+- [x] Reposts (NIP-18)
 - [x] Image/Video/Url/LnInvoice Previews
 - [x] View Threads
 - [x] Private Messages (NIP-04)
@@ -34,8 +39,9 @@ Or get the latest APK from the [Releases Section](https://github.com/vitorpamplo
 - [x] Lightning Tips
 - [x] Zaps (private, public, anon, non-zap) (NIP-57)
 - [x] URI Support (NIP-21)
-- [x] Event Deletion (NIP-09: like, boost, text notes and reports)
-- [x] Identity Verification (NIP-05)
+- [x] Created_at Limits (NIP-22)
+- [x] Event Deletion (NIP-09)
+- [x] Nostr Address (NIP-05)
 - [x] Long-form Content (NIP-23)
 - [x] Parameterized Replaceable Events (NIP-33)
 - [x] Online Relay Search (NIP-50)
@@ -54,22 +60,43 @@ Or get the latest APK from the [Releases Section](https://github.com/vitorpamplo
 - [x] Markdown Support
 - [x] Relay Authentication (NIP-42)
 - [x] Content stored in relays themselves (NIP-95)
-- [ ] Local Database 
-- [ ] View Individual Reactions (Like, Boost, Zaps, Reports) per Post
+- [x] Custom Emoji (NIP-30)
+- [x] Zap Forwarding (NIP-57)
+- [x] Text Note References (NIP-27)
+- [x] Audio Tracks (zapstr.live) (Kind:31337)
+- [x] Push Notifications (Zaps and Messages)
+- [x] Generic Tags (NIP-12)
+- [x] Sensitive Content (NIP-36)
+- [x] View Individual Reactions (Like, Boost, Zaps, Reports) per Post
+- [x] Recommended Application Handlers (NIP-89)
+- [x] Events with a Subject (NIP-14)
+- [x] Generic Reposts (kind:16)
+- [x] Live Activities & Live Chats (NIP-53)
+- [x] Relay Pages (NIP-11)
+- [x] HTTP Auth (NIP-98)
+- [x] Zapraiser (NIP-TBD)
+- [x] Moderated Communities (NIP-72)
+- [x] Emoji Packs (Kind:30030)
+- [x] Personal Emoji Lists (Kind:10030)
+- [x] Classifieds (Kind:30403)
+- [x] Private Messages and Small Groups (NIP-24)
+- [x] Gift Wraps & Seals (NIP-59)
+- [x] Versioned Encrypted Payloads (NIP-44)
+- [ ] Marketplace (NIP-15)
+- [ ] Image/Video Capture in the app
+- [ ] Local Database
 - [ ] Bookmarks, Pinned Posts, Muted Events (NIP-51)
-- [ ] Sensitive Content (NIP-36) 
-- [ ] Relay Pages (NIP-11)
-- [ ] Generic Tags (NIP-12)
 - [ ] Proof of Work in the Phone (NIP-13, NIP-20)
-- [ ] Events with a Subject (NIP-14)
 - [ ] Workspaces
 - [ ] Expiration Support (NIP-40)
 - [ ] Infinity Scroll
 - [ ] Relay List Metadata (NIP-65)
 - [ ] Signing Requests (NIP-46)
 - [ ] Delegated Event Signing (NIP-26)
-- [ ] Account Creation / Backup Guidance (NIP-06)
+- [ ] Account Creation / Backup Guidance
+- [ ] Mnemonic seed phrase (NIP-06)
 - [ ] Message Sent feedback (NIP-20)
+- [ ] OpenTimestamps Attestations (NIP-03)
 
 
 # Development Overview
@@ -174,6 +201,12 @@ Information that you share is publicly visible to anyone reading from relays tha
 ## Information Permanence ##
 Information shared on nostr should be assumed permanent for privacy purposes. There is no way to guarantee deleting or editing any content once posted. 
 
+# Screenshots
+
+| Home Feed                                 | Messages                                     | Live Streams                                    | Notifications                                          |
+|-------------------------------------------|----------------------------------------------|-------------------------------------------------|--------------------------------------------------------|
+| ![Home Feed](./docs/screenshots/home.png) | ![Messages](./docs/screenshots/messages.png) | ![Live Streams](./docs/screenshots/replies.png) | ![Notifications](./docs/screenshots/notifications.png) |
+
 # Contributing
 
 [Issues](https://github.com/vitorpamplona/amethyst/issues) and [pull requests](https://github.com/vitorpamplona/amethyst/pulls) are very welcome.

app/build.gradle

@@ -1,30 +1,33 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
-    id 'org.jlleitschuh.gradle.ktlint' version "11.3.1"
+    id 'org.jlleitschuh.gradle.ktlint' version "11.5.1"
+    id 'com.google.gms.google-services'
 }
 
 android {
     namespace 'com.vitorpamplona.amethyst'
-    compileSdk 33
+    compileSdk 34
 
     defaultConfig {
         applicationId "com.vitorpamplona.amethyst"
         minSdk 26
-        targetSdk 33
-        versionCode 131
-        versionName "0.37.4"
+        targetSdk 34
+        versionCode 275
+        versionName "0.74.2"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
             useSupportLibrary true
         }
+        resourceConfigurations += ['ar', 'cs', 'de', 'eo', 'es', 'fa', 'fr', 'hu', 'night', 'nl', 'pt-rBR', 'ru', 'sv-rSE', 'ta', 'tr', 'uk', 'zh', 'sh-rHK', 'zh-rTW', 'ja']
     }
 
     buildTypes {
         release {
-            //minifyEnabled true
-            //proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            //signingConfig signingConfigs.debug
+            proguardFiles getDefaultProguardFile("proguard-android-optimize.txt"), 'proguard-rules.pro'
+            minifyEnabled true
             resValue "string", "app_name", "@string/app_name_release"
         }
         debug {
@@ -34,7 +37,7 @@ android {
         }
     }
 
-    flavorDimensions "channel"
+    flavorDimensions = ["channel"]
 
     productFlavors {
         play {
@@ -70,7 +73,7 @@ android {
     }
 
     composeOptions {
-        kotlinCompilerExtensionVersion "1.4.3"
+        kotlinCompilerExtensionVersion "1.5.1"
     }
 
     packagingOptions {
@@ -81,12 +84,12 @@ android {
     lint {
         disable 'MissingTranslation'
     }
-
 }
 
 dependencies {
-    implementation 'androidx.core:core-ktx:1.10.0'
-    implementation 'androidx.activity:activity-compose:1.7.0'
+    implementation project(path: ':quartz')
+    implementation 'androidx.core:core-ktx:1.10.1'
+    implementation 'androidx.activity:activity-compose:1.7.2'
     implementation "androidx.compose.ui:ui:$compose_ui_version"
     implementation "androidx.compose.ui:ui-tooling-preview:$compose_ui_version"
 
@@ -94,7 +97,7 @@ dependencies {
     implementation "androidx.fragment:fragment-ktx:$fragment_version"
 
     // Navigation
-    implementation("androidx.navigation:navigation-compose:$nav_version")
+    implementation "androidx.navigation:navigation-compose:$nav_version"
 
     // Observe Live data as State
     implementation "androidx.compose.runtime:runtime-livedata:$compose_ui_version"
@@ -106,38 +109,26 @@ dependencies {
     implementation "androidx.lifecycle:lifecycle-runtime-compose:$lifecycle_version"
     implementation "androidx.lifecycle:lifecycle-viewmodel-compose:$lifecycle_version"
     implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-livedata:$lifecycle_version"
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
 
-    implementation 'net.engawapg.lib:zoomable:1.4.2'
+    implementation "net.engawapg.lib:zoomable:1.4.3"
 
     // Biometrics
     implementation "androidx.biometric:biometric-ktx:1.2.0-alpha05"
 
-    // Bitcoin secp256k1 bindings to Android
-    implementation 'fr.acinq.secp256k1:secp256k1-kmp-jni-android:0.9.0'
-
-    // Nostr Base Protocol
-    implementation('com.github.vitorpamplona.NostrPostr:nostrpostrlib:master-SNAPSHOT') {
-        exclude group:'fr.acinq.secp256k1'
-        exclude module: 'guava'
-        exclude module: 'guava-testlib'
-    }
-
     // Websockets API
     implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.11'
 
-    // Json Serialization TODO: We might need to converge between gson and Jackson (we are usin both)
-    implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.15.0'
-    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
-
     // link preview
-    implementation 'tw.com.oneup.www:Baha-UrlPreview:1.0.1'
+    implementation 'org.jsoup:jsoup:1.16.1'
 
     // Encrypted Key Storage
     implementation 'androidx.security:security-crypto-ktx:1.1.0-alpha06'
 
     // view videos
-    implementation 'com.google.android.exoplayer:exoplayer:2.18.6'
+    implementation "androidx.media3:media3-exoplayer:${exoplayer_version}"
+    // important for proxy / tor
+    implementation "androidx.media3:media3-datasource-okhttp:${exoplayer_version}"
 
     // Load images from the web.
     implementation "io.coil-kt:coil-compose:$coil_version"
@@ -149,22 +140,28 @@ dependencies {
     // create blurhash
     implementation group: 'io.trbl', name: 'blurhash', version: '1.0.0'
 
-    // Rendering clickable text
-    implementation "com.google.accompanist:accompanist-flowlayout:$accompanist_version"
     // Permission to upload pictures:
     implementation "com.google.accompanist:accompanist-permissions:$accompanist_version"
 
-    // Parses URLs from Text:
-    implementation "io.github.url-detector:url-detector:0.1.23"
-
     // For QR generation
-    implementation 'com.google.zxing:core:3.5.1'
+    implementation 'com.google.zxing:core:3.5.2'
     implementation 'com.journeyapps:zxing-android-embedded:4.3.0'
 
     // Markdown
-    implementation "com.halilibo.compose-richtext:richtext-ui:0.16.0"
-    implementation "com.halilibo.compose-richtext:richtext-ui-material:0.16.0"
-    implementation "com.halilibo.compose-richtext:richtext-commonmark:0.16.0"
+    //implementation "com.halilibo.compose-richtext:richtext-ui:0.16.0"
+    //implementation "com.halilibo.compose-richtext:richtext-ui-material:0.16.0"
+    //implementation "com.halilibo.compose-richtext:richtext-commonmark:0.16.0"
+
+    // Markdown (With fix for full-image bleeds)
+    implementation('com.github.vitorpamplona.compose-richtext:richtext-ui:a0954aba63')
+    implementation('com.github.vitorpamplona.compose-richtext:richtext-ui-material:a0954aba63')
+    implementation('com.github.vitorpamplona.compose-richtext:richtext-commonmark:a0954aba63')
+
+    // Language picker and Theme chooser
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'androidx.media3:media3-exoplayer-hls:1.1.0'
+    implementation 'androidx.media3:media3-ui:1.1.0'
+    implementation 'androidx.media3:media3-session:1.1.0'
 
     // Local model for language identification
     playImplementation 'com.google.mlkit:language-id:17.0.4'
@@ -172,11 +169,29 @@ dependencies {
     // Google services model the translate text
     playImplementation 'com.google.mlkit:translate:17.0.1'
 
-    // Automatic memory leak detection
-    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.10'
+    // PushNotifications
+    playImplementation platform('com.google.firebase:firebase-bom:32.2.2')
+    playImplementation 'com.google.firebase:firebase-messaging-ktx'
+
+    // Charts
+    implementation "com.patrykandpatrick.vico:core:${vico_version}"
+    implementation "com.patrykandpatrick.vico:compose:${vico_version}"
+    implementation "com.patrykandpatrick.vico:views:${vico_version}"
+    implementation "com.patrykandpatrick.vico:compose-m2:${vico_version}"
+
+    // GeoHash
+    implementation 'com.github.drfonfon:android-kotlin-geohash:1.0'
+
+    // Waveform visualizer
+    implementation 'com.github.lincollincol:compose-audiowaveform:1.1.1'
+
+    // Video compression lib
+    implementation 'com.github.AbedElazizShe:LightCompressor:1.3.1'
+    // Image compression lib
+    implementation 'id.zelory:compressor:3.0.1'
 
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'io.mockk:mockk:1.13.5'
+    testImplementation 'io.mockk:mockk:1.13.7'
     androidTestImplementation 'androidx.test.ext:junit:1.2.0-alpha01'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
     androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_ui_version"

app/google-services.json

@@ -0,0 +1,68 @@
+{
+  "project_info": {
+    "project_number": "768341258853",
+    "project_id": "amethyst-3057a",
+    "storage_bucket": "amethyst-3057a.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:768341258853:android:5d07c35a37b24ff36b8c8c",
+        "android_client_info": {
+          "package_name": "com.vitorpamplona.amethyst"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyB7ZxgdpgrN6R223HCFdfv4ulP8Egp7trE"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:768341258853:android:e0200680f552484d6b8c8c",
+        "android_client_info": {
+          "package_name": "com.vitorpamplona.amethyst.debug"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyB7ZxgdpgrN6R223HCFdfv4ulP8Egp7trE"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "768341258853-6um8ig59qstvio60gfo60fe5e45lnqqe.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

app/proguard-rules.pro

@@ -5,33 +5,56 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
 
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
-# For the Secp256k1 library
+# preserve the line number information for debugging stack traces.
+-dontobfuscate
+-keepattributes LocalVariableTable
+-keepattributes LocalVariableTypeTable
+-keepattributes *Annotation*
+-keepattributes SourceFile
+-keepattributes LineNumberTable
+-keepattributes Signature
+-keepattributes Exceptions
 -keepattributes InnerClasses
+-keepattributes EnclosingMethod
+-keepattributes MethodParameters
+-keepparameternames
 
--keep class fr.acinq.secp256k1.jni.** { *; }
-# For the NostrPostr library
--keep class nostr.postr.** { *; }
--keep class com.vitorpamplona.amethyst.service.model.** { *; }
-# Json parsing
--keep class com.google.gson.reflect.** { *; }
--keep class * extends com.google.gson.reflect.TypeToken
--keep public class * implements java.lang.reflect.Type
+-keepdirectories libs
 
--keep class com.vitorpamplona.amethyst.lnurl.** { *; }
+# Keep all names
+-keepnames class ** { *; }
+
+# Keep All enums
+-keep enum ** { *; }
+
+# preserve access to native classses
+-keep class fr.acinq.secp256k1.** { *; }
+
+# JNA For Libsodium
+-keep class com.goterl.lazysodium.** { *; }
+
+# JNA also requires AWT, which Android does not have. So the classes are broken down to filter AWT out
+-keep class com.sun.jna.ToNativeConverter { *; }
+-keep class com.sun.jna.NativeMapped { *; }
+-keep class com.sun.jna.CallbackReference { *; }
+-keep class com.sun.jna.ptr.IntByReference { *; }
+-keep class com.sun.jna.NativeLong { *; }
+-keep class com.sun.jna.Structure { *; }
+-keep class com.sun.jna.Structure$* { *; }
+-keep class com.sun.jna.Native$ffi_callback { *; }
+-keep class * implements com.sun.jna.Structure$* { *; }
+-keep class * implements com.sun.jna.Native$* { *; }
+-keep class com.sun.jna.Native {
+    private static com.sun.jna.NativeMapped fromNative(java.lang.Class, java.lang.Object);
+    private static com.sun.jna.NativeMapped fromNative(java.lang.reflect.Method, java.lang.Object);
+    private static java.lang.Class nativeType(java.lang.Class);
+    private static java.lang.Object toNative(com.sun.jna.ToNativeConverter, java.lang.Object);
+    private static java.lang.Object fromNative(com.sun.jna.FromNativeConverter, java.lang.Object, java.lang.reflect.Method);
+}
+
+# JSON parsing
+-keep class com.vitorpamplona.quartz.crypto.** { *; }
+-keep class com.vitorpamplona.quartz.encoders.** { *; }
+-keep class com.vitorpamplona.quartz.events.** { *; }
 -keep class com.vitorpamplona.amethyst.model.** { *; }
 -keep class com.vitorpamplona.amethyst.service.** { *; }
--keep class com.vitorpamplona.amethyst.ui.** { *; }

app/src/androidTest/java/com/vitorpamplona/amethyst/ImageUploadTesting.kt

@@ -1,91 +1,78 @@
 package com.vitorpamplona.amethyst
 
 import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.ui.actions.FileServer
 import com.vitorpamplona.amethyst.ui.actions.ImageUploader
 import com.vitorpamplona.amethyst.ui.actions.ImgurServer
 import com.vitorpamplona.amethyst.ui.actions.NostrBuildServer
+import com.vitorpamplona.amethyst.ui.actions.NostrFilesDevServer
 import com.vitorpamplona.amethyst.ui.actions.NostrImgServer
-import junit.framework.TestCase.assertNotNull
-import junit.framework.TestCase.fail
-import kotlinx.coroutines.delay
+import com.vitorpamplona.quartz.crypto.KeyPair
 import kotlinx.coroutines.runBlocking
-import org.junit.Ignore
+import org.junit.Assert
 import org.junit.Test
 import org.junit.runner.RunWith
 import java.util.Base64
+import java.util.concurrent.CountDownLatch
 
 @RunWith(AndroidJUnit4::class)
 class ImageUploadTesting {
 
     val image = "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"
 
-    @Test()
-    fun testImgurUpload() = runBlocking {
-        val inputStream = Base64.getDecoder().decode(image).inputStream()
+    fun testBase(server: FileServer) {
+        val bytes = Base64.getDecoder().decode(image)
+        val inputStream = bytes.inputStream()
 
-        println("Uploading")
+        val countDownLatch = CountDownLatch(1)
+        var url: String? = null
+        var error: String? = null
+
+        ImageUploader.account = Account(
+            KeyPair()
+        )
 
         ImageUploader.uploadImage(
             inputStream,
+            bytes.size.toLong(),
             "image/gif",
-            ImgurServer(),
-            onSuccess = { url, contentType ->
+            server,
+            onSuccess = { newUrl, contentType ->
                 println("Uploaded to $url")
-                assertNotNull(url)
+                url = newUrl
+                countDownLatch.countDown()
             },
             onError = {
                 println("Failed to Upload")
-                fail("${it.message}")
+                error = it.message
+                countDownLatch.countDown()
             }
         )
 
-        delay(1000)
+        countDownLatch.await()
+
+        Assert.assertNull(error)
+        Assert.assertTrue(url?.startsWith("http") == true)
+    }
+
+    @Test()
+    fun testImgurUpload() = runBlocking {
+        testBase(ImgurServer())
     }
 
     @Test()
-    @Ignore
     fun testNostrBuildUpload() = runBlocking {
-        val inputStream = Base64.getDecoder().decode(image).inputStream()
-
-        println("Uploading")
-
-        ImageUploader.uploadImage(
-            inputStream,
-            "image/gif",
-            NostrBuildServer(),
-            onSuccess = { url, contentType ->
-                println("Uploaded to $url")
-                assertNotNull(url)
-            },
-            onError = {
-                println("Failed to Upload")
-                fail("${it.message}")
-            }
-        )
-
-        delay(1000)
+        testBase(NostrBuildServer())
     }
 
     @Test()
     fun testNostrImgUpload() = runBlocking {
-        val inputStream = Base64.getDecoder().decode(image).inputStream()
+        testBase(NostrImgServer())
+    }
 
-        println("Uploading")
-
-        ImageUploader.uploadImage(
-            inputStream,
-            "image/gif",
-            NostrImgServer(),
-            onSuccess = { url, contentType ->
-                println("Uploaded to $url")
-                assertNotNull(url)
-            },
-            onError = {
-                println("Failed to Upload")
-                fail("${it.message}")
-            }
-        )
-
-        delay(1000)
+    @Test()
+    fun testNostrFilesDevUpload() = runBlocking {
+        testBase(NostrFilesDevServer())
     }
 }

app/src/androidTest/java/com/vitorpamplona/amethyst/UrlUserTagTransformationTest.kt

@@ -5,10 +5,10 @@ import androidx.compose.ui.text.AnnotatedString
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.model.UserMetadata
-import com.vitorpamplona.amethyst.model.decodePublicKey
-import com.vitorpamplona.amethyst.model.toHexKey
 import com.vitorpamplona.amethyst.ui.actions.buildAnnotatedStringWithUrlHighlighting
+import com.vitorpamplona.quartz.encoders.decodePublicKey
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.UserMetadata
 import org.junit.Assert.assertEquals
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -29,7 +29,10 @@ class UrlUserTagTransformationTest {
 
     @Test
     fun transformationText() {
-        val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z").toHexKey())
+        val user = LocalCache.getOrCreateUser(
+            decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z")
+                .toHexKey()
+        )
         user.info = UserMetadata()
         user.info?.displayName = "Vitor Pamplona"
 
@@ -63,7 +66,10 @@ class UrlUserTagTransformationTest {
 
     @Test
     fun transformationTextTwoKeys() {
-        val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z").toHexKey())
+        val user = LocalCache.getOrCreateUser(
+            decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z")
+                .toHexKey()
+        )
         user.info = UserMetadata()
         user.info?.displayName = "Vitor Pamplona"
 

app/src/androidTestPlay/java/com/vitorpamplona/amethyst/TranslationsTest.kt

@@ -11,17 +11,17 @@ import org.junit.runner.RunWith
 @RunWith(AndroidJUnit4::class)
 class TranslationsTest {
 
-    fun translatePT(text: String, translateTo: String): String? {
+    fun translateTo(text: String, translateTo: String): String? {
         val task = LanguageTranslatorService.autoTranslate(text, emptySet(), translateTo)
         return Tasks.await(task).result
     }
 
     fun assertTranslate(expected: String, input: String, translateTo: String) {
-        assertEquals(null, expected, translatePT(input, translateTo))
+        assertEquals(null, expected, translateTo(input, translateTo))
     }
 
     fun assertTranslateContains(expected: String, input: String, translateTo: String) {
-        val translated = translatePT(input, translateTo)!!
+        val translated = translateTo(input, translateTo)!!
         assertTrue("'$translated' does not contain '$expected'", translated.contains(expected))
     }
 
@@ -86,4 +86,26 @@ class TranslationsTest {
             "en"
         )
     }
+
+    @Test
+    fun testJapaneseTranslationsOfUrl() {
+        assertTranslateContains(
+            "https://youtu.be/wMYFmCDy_Eg",
+            "うちの会社の小さい先輩の話 第1話「うちの会社の先輩は小さくて可愛い」\n" +
+                "\n" +
+                "https://youtu.be/wMYFmCDy_Eg\n" +
+                "\n" +
+                "先輩がうざい後輩の話と似たような話かと思ったけど、もっとオタクの妄想あるある的なものを詰め込んだやつだ。ワードとかシチュエーションとか、ヒロインのサイズ感とか。知らんけど",
+            "en"
+        )
+    }
+
+    @Test
+    fun testEmoji() {
+        assertTranslateContains(
+            "https://cdn.nostr.build/i/df3783dcdf7dd289ba02ba538dc039c8fe1d4db055e580b81604ed88c6af4ee0.jpg",
+            "\uD83E\uDD23 https://cdn.nostr.build/i/df3783dcdf7dd289ba02ba538dc039c8fe1d4db055e580b81604ed88c6af4ee0.jpg ",
+            "pt"
+        )
+    }
 }

app/src/fdroid/java/com/vitorpamplona/amethyst/service/notifications/PushNotificationUtils.kt

@@ -0,0 +1,8 @@
+package com.vitorpamplona.amethyst.service.notifications
+
+import com.vitorpamplona.amethyst.AccountInfo
+
+class PushNotificationUtils {
+    fun init(accounts: List<AccountInfo>) {
+    }
+}

app/src/fdroid/java/com/vitorpamplona/amethyst/ui/components/TranslatableRichTextViewer.kt

@@ -1,20 +1,21 @@
 package com.vitorpamplona.amethyst.ui.components
 
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.navigation.NavController
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
 
 @Composable
 fun TranslatableRichTextViewer(
     content: String,
     canPreview: Boolean,
     modifier: Modifier = Modifier,
-    tags: List<List<String>>?,
-    backgroundColor: Color,
+    tags: ImmutableListOfLists<String>,
+    backgroundColor: MutableState<Color>,
     accountViewModel: AccountViewModel,
-    navController: NavController
+    nav: (String) -> Unit
 ) = ExpandableRichTextViewer(
     content,
     canPreview,
@@ -22,5 +23,5 @@ fun TranslatableRichTextViewer(
     tags,
     backgroundColor,
     accountViewModel,
-    navController
+    nav
 )

app/src/main/AndroidManifest.xml

@@ -1,17 +1,49 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
+    <queries>
+        <package android:name="org.torproject.android"/>
+    </queries>
 
+    <!-- Doesn't require a camera -->
     <uses-feature android:name="android.hardware.camera" android:required="false" />
 
+    <!-- To connect with relays -->
     <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- To Upload media (newer devices) -->
     <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
     <uses-permission android:name="android.permission.READ_MEDIA_VIDEO"/>
+
+    <!-- To Upload media (old devices) -->
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+
+    <!-- To read QRs that contain nostr:<NIP19> -->
     <uses-permission android:name="android.permission.CAMERA" />
 
-    <!-- Used for SDK < 29 -->
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+    <!-- To read NFCs that contain nostr:<NIP19> -->
+    <uses-permission android:name="android.permission.NFC" />
+
+    <!-- To know receive notifications when the app connects/disconnects from the web -->
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+
+    <!-- Audio/Video Playback -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK" />
+
+    <!-- Keeps screen on while playing videos -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <!-- This notification permission is needed for some phones -->
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+
+    <!-- Adds Geohash to posts if active -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+
+    <!-- Old permission to access media -->
+    <uses-permission
+        android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        android:maxSdkVersion="28"
         tools:ignore="ScopedStorage" />
 
     <application
@@ -27,11 +59,14 @@
         android:largeHeap="true"
         android:usesCleartextTraffic="true"
         android:hardwareAccelerated="true"
+        android:localeConfig="@xml/locales_config"
         tools:targetApi="33">
         <activity
             android:name=".ui.MainActivity"
             android:exported="true"
+            android:launchMode="singleTop"
             android:windowSoftInputMode="adjustResize"
+            android:configChanges="orientation|screenSize|screenLayout"
             android:theme="@style/Theme.Amethyst">
 
             <intent-filter android:label="Amethyst">
@@ -46,6 +81,12 @@
                 <data android:scheme="nostr" />
             </intent-filter>
 
+            <intent-filter android:label="Amethyst">
+                <action android:name="android.nfc.action.NDEF_DISCOVERED"/>
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="nostr" />
+            </intent-filter>
+
             <intent-filter android:label="Amethyst">
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -63,6 +104,18 @@
             android:name="com.journeyapps.barcodescanner.CaptureActivity"
             android:screenOrientation="fullSensor"
             tools:replace="screenOrientation" />
+
+        <service
+            android:name=".PlaybackService"
+            android:foregroundServiceType="mediaPlayback"
+            android:stopWithTask="true"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="androidx.media3.session.MediaSessionService"/>
+                <action android:name="android.media.browse.MediaBrowserService"/>
+            </intent-filter>
+        </service>
+
     </application>
 
 </manifest>

app/src/main/java/com/vitorpamplona/amethyst/Amethyst.kt

@@ -1,11 +1,38 @@
 package com.vitorpamplona.amethyst
 
 import android.app.Application
+import android.os.StrictMode
+import android.os.StrictMode.ThreadPolicy
+import android.os.StrictMode.VmPolicy
 
 class Amethyst : Application() {
+    @androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
     override fun onCreate() {
         super.onCreate()
         instance = this
+
+        VideoCache.initFileCache(instance)
+
+        if (BuildConfig.DEBUG) {
+            StrictMode.setThreadPolicy(
+                ThreadPolicy.Builder()
+                    .detectAll()
+                    .penaltyLog()
+                    .build()
+            )
+            StrictMode.setVmPolicy(
+                VmPolicy.Builder()
+                    .detectActivityLeaks()
+                    .detectFileUriExposure()
+                    .detectContentUriWithoutPermission()
+                    .detectLeakedClosableObjects()
+                    .detectLeakedRegistrationObjects()
+                    .detectLeakedSqlLiteObjects()
+                    .penaltyLog()
+                    // .penaltyDeath()
+                    .build()
+            )
+        }
     }
 
     companion object {

app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt

@@ -3,21 +3,26 @@ package com.vitorpamplona.amethyst
 import android.annotation.SuppressLint
 import android.content.Context
 import android.content.SharedPreferences
-import com.google.gson.GsonBuilder
-import com.google.gson.reflect.TypeToken
+import androidx.compose.runtime.Immutable
+import com.fasterxml.jackson.module.kotlin.readValue
 import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.ConnectivityType
+import com.vitorpamplona.amethyst.model.GLOBAL_FOLLOWS
+import com.vitorpamplona.amethyst.model.KIND3_FOLLOWS
+import com.vitorpamplona.amethyst.model.Nip47URI
 import com.vitorpamplona.amethyst.model.RelaySetupInfo
-import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.service.model.ContactListEvent
-import com.vitorpamplona.amethyst.service.model.Event
-import com.vitorpamplona.amethyst.service.model.Event.Companion.getRefinedEvent
-import com.vitorpamplona.amethyst.service.model.LnZapEvent
-import com.vitorpamplona.amethyst.ui.actions.ServersAvailable
-import com.vitorpamplona.amethyst.ui.note.Nip47URI
-import fr.acinq.secp256k1.Hex
-import nostr.postr.Persona
-import nostr.postr.toHex
-import nostr.postr.toNpub
+import com.vitorpamplona.amethyst.model.ServersAvailable
+import com.vitorpamplona.amethyst.model.Settings
+import com.vitorpamplona.amethyst.model.parseConnectivityType
+import com.vitorpamplona.amethyst.service.HttpClient
+import com.vitorpamplona.quartz.crypto.KeyPair
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.hexToByteArray
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.encoders.toNpub
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.LnZapEvent
 import java.io.File
 import java.util.Locale
 
@@ -27,6 +32,7 @@ import java.util.Locale
 private const val DEBUG_PLAINTEXT_PREFERENCES = false
 private const val DEBUG_PREFERENCES_NAME = "debug_prefs"
 
+@Immutable
 data class AccountInfo(
     val npub: String,
     val hasPrivKey: Boolean = false
@@ -38,23 +44,39 @@ private object PrefKeys {
     const val NOSTR_PRIVKEY = "nostr_privkey"
     const val NOSTR_PUBKEY = "nostr_pubkey"
     const val FOLLOWING_CHANNELS = "following_channels"
+    const val FOLLOWING_COMMUNITIES = "following_communities"
     const val HIDDEN_USERS = "hidden_users"
     const val RELAYS = "relays"
     const val DONT_TRANSLATE_FROM = "dontTranslateFrom"
     const val LANGUAGE_PREFS = "languagePreferences"
     const val TRANSLATE_TO = "translateTo"
     const val ZAP_AMOUNTS = "zapAmounts"
+    const val REACTION_CHOICES = "reactionChoices"
     const val DEFAULT_ZAPTYPE = "defaultZapType"
     const val DEFAULT_FILE_SERVER = "defaultFileServer"
+    const val DEFAULT_HOME_FOLLOW_LIST = "defaultHomeFollowList"
+    const val DEFAULT_STORIES_FOLLOW_LIST = "defaultStoriesFollowList"
+    const val DEFAULT_NOTIFICATION_FOLLOW_LIST = "defaultNotificationFollowList"
+    const val DEFAULT_DISCOVERY_FOLLOW_LIST = "defaultDiscoveryFollowList"
     const val ZAP_PAYMENT_REQUEST_SERVER = "zapPaymentServer"
     const val LATEST_CONTACT_LIST = "latestContactList"
     const val HIDE_DELETE_REQUEST_DIALOG = "hide_delete_request_dialog"
     const val HIDE_BLOCK_ALERT_DIALOG = "hide_block_alert_dialog"
+    const val HIDE_NIP_24_WARNING_DIALOG = "hide_nip24_warning_dialog"
+    const val USE_PROXY = "use_proxy"
+    const val PROXY_PORT = "proxy_port"
+    const val SHOW_SENSITIVE_CONTENT = "show_sensitive_content"
+    const val WARN_ABOUT_REPORTS = "warn_about_reports"
+    const val FILTER_SPAM_FROM_STRANGERS = "filter_spam_from_strangers"
+    const val LAST_READ_PER_ROUTE = "last_read_route_per_route"
+    const val AUTOMATICALLY_SHOW_IMAGES = "automatically_show_images"
+    const val AUTOMATICALLY_START_PLAYBACK = "automatically_start_playback"
+    const val THEME = "theme"
+    const val PREFERRED_LANGUAGE = "preferred_Language"
+    const val AUTOMATICALLY_LOAD_URL_PREVIEW = "automatically_load_url_preview"
     val LAST_READ: (String) -> String = { route -> "last_read_route_$route" }
 }
 
-private val gson = GsonBuilder().create()
-
 object LocalPreferences {
     private const val comma = ","
 
@@ -186,56 +208,127 @@ object LocalPreferences {
     fun saveToEncryptedStorage(account: Account) {
         val prefs = encryptedPreferences(account.userProfile().pubkeyNpub())
         prefs.edit().apply {
-            account.loggedIn.privKey?.let { putString(PrefKeys.NOSTR_PRIVKEY, it.toHex()) }
-            account.loggedIn.pubKey.let { putString(PrefKeys.NOSTR_PUBKEY, it.toHex()) }
+            account.keyPair.privKey?.let { putString(PrefKeys.NOSTR_PRIVKEY, it.toHexKey()) }
+            account.keyPair.pubKey.let { putString(PrefKeys.NOSTR_PUBKEY, it.toHexKey()) }
             putStringSet(PrefKeys.FOLLOWING_CHANNELS, account.followingChannels)
+            putStringSet(PrefKeys.FOLLOWING_COMMUNITIES, account.followingCommunities)
             putStringSet(PrefKeys.HIDDEN_USERS, account.hiddenUsers)
-            putString(PrefKeys.RELAYS, gson.toJson(account.localRelays))
+            putString(PrefKeys.RELAYS, Event.mapper.writeValueAsString(account.localRelays))
             putStringSet(PrefKeys.DONT_TRANSLATE_FROM, account.dontTranslateFrom)
-            putString(PrefKeys.LANGUAGE_PREFS, gson.toJson(account.languagePreferences))
+            putString(PrefKeys.LANGUAGE_PREFS, Event.mapper.writeValueAsString(account.languagePreferences))
             putString(PrefKeys.TRANSLATE_TO, account.translateTo)
-            putString(PrefKeys.ZAP_AMOUNTS, gson.toJson(account.zapAmountChoices))
-            putString(PrefKeys.DEFAULT_ZAPTYPE, gson.toJson(account.defaultZapType))
-            putString(PrefKeys.DEFAULT_FILE_SERVER, gson.toJson(account.defaultFileServer))
-            putString(PrefKeys.ZAP_PAYMENT_REQUEST_SERVER, gson.toJson(account.zapPaymentRequest))
-            putString(PrefKeys.LATEST_CONTACT_LIST, Event.gson.toJson(account.backupContactList))
+            putString(PrefKeys.ZAP_AMOUNTS, Event.mapper.writeValueAsString(account.zapAmountChoices))
+            putString(PrefKeys.REACTION_CHOICES, Event.mapper.writeValueAsString(account.reactionChoices))
+            putString(PrefKeys.DEFAULT_ZAPTYPE, account.defaultZapType.name)
+            putString(PrefKeys.DEFAULT_FILE_SERVER, account.defaultFileServer.name)
+            putString(PrefKeys.DEFAULT_HOME_FOLLOW_LIST, account.defaultHomeFollowList)
+            putString(PrefKeys.DEFAULT_STORIES_FOLLOW_LIST, account.defaultStoriesFollowList)
+            putString(PrefKeys.DEFAULT_NOTIFICATION_FOLLOW_LIST, account.defaultNotificationFollowList)
+            putString(PrefKeys.DEFAULT_DISCOVERY_FOLLOW_LIST, account.defaultDiscoveryFollowList)
+            putString(PrefKeys.ZAP_PAYMENT_REQUEST_SERVER, Event.mapper.writeValueAsString(account.zapPaymentRequest))
+            putString(PrefKeys.LATEST_CONTACT_LIST, Event.mapper.writeValueAsString(account.backupContactList))
             putBoolean(PrefKeys.HIDE_DELETE_REQUEST_DIALOG, account.hideDeleteRequestDialog)
+            putBoolean(PrefKeys.HIDE_NIP_24_WARNING_DIALOG, account.hideNIP24WarningDialog)
             putBoolean(PrefKeys.HIDE_BLOCK_ALERT_DIALOG, account.hideBlockAlertDialog)
+            putBoolean(PrefKeys.USE_PROXY, account.proxy != null)
+            putInt(PrefKeys.PROXY_PORT, account.proxyPort)
+            putBoolean(PrefKeys.WARN_ABOUT_REPORTS, account.warnAboutPostsWithReports)
+            putBoolean(PrefKeys.FILTER_SPAM_FROM_STRANGERS, account.filterSpamFromStrangers)
+            putString(PrefKeys.LAST_READ_PER_ROUTE, Event.mapper.writeValueAsString(account.lastReadPerRoute))
+
+            if (account.showSensitiveContent == null) {
+                remove(PrefKeys.SHOW_SENSITIVE_CONTENT)
+            } else {
+                putBoolean(PrefKeys.SHOW_SENSITIVE_CONTENT, account.showSensitiveContent!!)
+            }
+        }.apply()
+
+        val globalPrefs = encryptedPreferences()
+        globalPrefs.edit().apply {
+            if (account.settings.automaticallyShowImages.prefCode == null) {
+                remove(PrefKeys.AUTOMATICALLY_SHOW_IMAGES)
+            } else {
+                putBoolean(PrefKeys.AUTOMATICALLY_SHOW_IMAGES, account.settings.automaticallyShowImages.prefCode!!)
+            }
+
+            if (account.settings.automaticallyStartPlayback.prefCode == null) {
+                remove(PrefKeys.AUTOMATICALLY_START_PLAYBACK)
+            } else {
+                putBoolean(PrefKeys.AUTOMATICALLY_START_PLAYBACK, account.settings.automaticallyStartPlayback.prefCode!!)
+            }
+            if (account.settings.automaticallyShowUrlPreview.prefCode == null) {
+                remove(PrefKeys.AUTOMATICALLY_LOAD_URL_PREVIEW)
+            } else {
+                putBoolean(PrefKeys.AUTOMATICALLY_LOAD_URL_PREVIEW, account.settings.automaticallyShowUrlPreview.prefCode!!)
+            }
+            putString(PrefKeys.PREFERRED_LANGUAGE, account.settings.preferredLanguage ?: "")
         }.apply()
     }
 
+    fun updateTheme(theme: Int) {
+        encryptedPreferences().edit().apply {
+            putInt(PrefKeys.THEME, theme)
+        }.apply()
+    }
+
+    fun getTheme(): Int {
+        encryptedPreferences().apply {
+            return getInt(PrefKeys.THEME, 0)
+        }
+    }
+
+    fun getPreferredLanguage(): String {
+        var language = ""
+        encryptedPreferences().apply {
+            language = getString(PrefKeys.PREFERRED_LANGUAGE, "") ?: ""
+        }
+        return language
+    }
+
     fun loadFromEncryptedStorage(): Account? {
-        encryptedPreferences(currentAccount()).apply {
+        val acc = loadFromEncryptedStorage(currentAccount())
+        acc?.registerObservers()
+        return acc
+    }
+
+    fun loadFromEncryptedStorage(npub: String?): Account? {
+        encryptedPreferences(npub).apply {
             val pubKey = getString(PrefKeys.NOSTR_PUBKEY, null) ?: return null
             val privKey = getString(PrefKeys.NOSTR_PRIVKEY, null)
             val followingChannels = getStringSet(PrefKeys.FOLLOWING_CHANNELS, null) ?: setOf()
+            val followingCommunities = getStringSet(PrefKeys.FOLLOWING_COMMUNITIES, null) ?: setOf()
             val hiddenUsers = getStringSet(PrefKeys.HIDDEN_USERS, emptySet()) ?: setOf()
-            val localRelays = gson.fromJson(
-                getString(PrefKeys.RELAYS, "[]"),
-                object : TypeToken<Set<RelaySetupInfo>>() {}.type
-            ) ?: setOf<RelaySetupInfo>()
+            val localRelays = getString(PrefKeys.RELAYS, "[]")?.let {
+                println("LocalRelays: $it")
+                Event.mapper.readValue<Set<RelaySetupInfo>?>(it)
+            } ?: setOf<RelaySetupInfo>()
 
             val dontTranslateFrom = getStringSet(PrefKeys.DONT_TRANSLATE_FROM, null) ?: setOf()
             val translateTo = getString(PrefKeys.TRANSLATE_TO, null) ?: Locale.getDefault().language
+            val defaultHomeFollowList = getString(PrefKeys.DEFAULT_HOME_FOLLOW_LIST, null) ?: KIND3_FOLLOWS
+            val defaultStoriesFollowList = getString(PrefKeys.DEFAULT_STORIES_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
+            val defaultNotificationFollowList = getString(PrefKeys.DEFAULT_NOTIFICATION_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
+            val defaultDiscoveryFollowList = getString(PrefKeys.DEFAULT_DISCOVERY_FOLLOW_LIST, null) ?: GLOBAL_FOLLOWS
 
-            val zapAmountChoices = gson.fromJson(
-                getString(PrefKeys.ZAP_AMOUNTS, "[]"),
-                object : TypeToken<List<Long>>() {}.type
-            ) ?: listOf(500L, 1000L, 5000L)
+            val zapAmountChoices = getString(PrefKeys.ZAP_AMOUNTS, "[]")?.let {
+                Event.mapper.readValue<List<Long>?>(it)
+            }?.ifEmpty { listOf(500L, 1000L, 5000L) } ?: listOf(500L, 1000L, 5000L)
 
-            val defaultZapType = gson.fromJson(
-                getString(PrefKeys.DEFAULT_ZAPTYPE, "PUBLIC"),
-                object : TypeToken<LnZapEvent.ZapType>() {}.type
-            ) ?: LnZapEvent.ZapType.PUBLIC
+            val reactionChoices = getString(PrefKeys.REACTION_CHOICES, "[]")?.let {
+                Event.mapper.readValue<List<String>?>(it)
+            }?.ifEmpty { listOf("+") } ?: listOf("+")
 
-            val defaultFileServer = gson.fromJson(
-                getString(PrefKeys.DEFAULT_FILE_SERVER, "IMGUR"),
-                object : TypeToken<ServersAvailable>() {}.type
-            ) ?: ServersAvailable.IMGUR
+            val defaultZapType = getString(PrefKeys.DEFAULT_ZAPTYPE, "")?.let { serverName ->
+                LnZapEvent.ZapType.values().firstOrNull() { it.name == serverName }
+            } ?: LnZapEvent.ZapType.PUBLIC
+
+            val defaultFileServer = getString(PrefKeys.DEFAULT_FILE_SERVER, "")?.let { serverName ->
+                ServersAvailable.values().firstOrNull() { it.name == serverName }
+            } ?: ServersAvailable.NOSTR_BUILD
 
             val zapPaymentRequestServer = try {
                 getString(PrefKeys.ZAP_PAYMENT_REQUEST_SERVER, null)?.let {
-                    gson.fromJson(it, Nip47URI::class.java)
+                    Event.mapper.readValue<Nip47URI?>(it)
                 }
             } catch (e: Throwable) {
                 e.printStackTrace()
@@ -244,8 +337,7 @@ object LocalPreferences {
 
             val latestContactList = try {
                 getString(PrefKeys.LATEST_CONTACT_LIST, null)?.let {
-                    Event.gson.fromJson(it, Event::class.java)
-                        .getRefinedEvent(true) as ContactListEvent
+                    Event.fromJson(it) as ContactListEvent?
                 }
             } catch (e: Throwable) {
                 e.printStackTrace()
@@ -254,10 +346,7 @@ object LocalPreferences {
 
             val languagePreferences = try {
                 getString(PrefKeys.LANGUAGE_PREFS, null)?.let {
-                    gson.fromJson(
-                        it,
-                        object : TypeToken<Map<String, String>>() {}.type
-                    ) as Map<String, String>
+                    Event.mapper.readValue<Map<String, String>?>(it)
                 } ?: mapOf()
             } catch (e: Throwable) {
                 e.printStackTrace()
@@ -266,40 +355,85 @@ object LocalPreferences {
 
             val hideDeleteRequestDialog = getBoolean(PrefKeys.HIDE_DELETE_REQUEST_DIALOG, false)
             val hideBlockAlertDialog = getBoolean(PrefKeys.HIDE_BLOCK_ALERT_DIALOG, false)
+            val hideNIP24WarningDialog = getBoolean(PrefKeys.HIDE_NIP_24_WARNING_DIALOG, false)
+            val useProxy = getBoolean(PrefKeys.USE_PROXY, false)
+            val proxyPort = getInt(PrefKeys.PROXY_PORT, 9050)
+            val proxy = HttpClient.initProxy(useProxy, "127.0.0.1", proxyPort)
+
+            val showSensitiveContent = if (contains(PrefKeys.SHOW_SENSITIVE_CONTENT)) {
+                getBoolean(PrefKeys.SHOW_SENSITIVE_CONTENT, false)
+            } else {
+                null
+            }
+            val filterSpam = getBoolean(PrefKeys.FILTER_SPAM_FROM_STRANGERS, true)
+            val warnAboutReports = getBoolean(PrefKeys.WARN_ABOUT_REPORTS, true)
+
+            val lastReadPerRoute = try {
+                getString(PrefKeys.LAST_READ_PER_ROUTE, null)?.let {
+                    Event.mapper.readValue<Map<String, Long>?>(it)
+                } ?: mapOf()
+            } catch (e: Throwable) {
+                e.printStackTrace()
+                mapOf()
+            }
+
+            val settings = Settings()
+            encryptedPreferences().apply {
+                settings.automaticallyShowImages = if (contains(PrefKeys.AUTOMATICALLY_SHOW_IMAGES)) {
+                    parseConnectivityType(getBoolean(PrefKeys.AUTOMATICALLY_SHOW_IMAGES, false))
+                } else {
+                    ConnectivityType.ALWAYS
+                }
+
+                settings.automaticallyStartPlayback = if (contains(PrefKeys.AUTOMATICALLY_START_PLAYBACK)) {
+                    parseConnectivityType(getBoolean(PrefKeys.AUTOMATICALLY_START_PLAYBACK, false))
+                } else {
+                    ConnectivityType.ALWAYS
+                }
+                settings.automaticallyShowUrlPreview = if (contains(PrefKeys.AUTOMATICALLY_LOAD_URL_PREVIEW)) {
+                    parseConnectivityType(getBoolean(PrefKeys.AUTOMATICALLY_LOAD_URL_PREVIEW, false))
+                } else {
+                    ConnectivityType.ALWAYS
+                }
+
+                settings.preferredLanguage = getString(PrefKeys.PREFERRED_LANGUAGE, "")
+            }
 
             val a = Account(
-                Persona(privKey = privKey?.toByteArray(), pubKey = pubKey.toByteArray()),
-                followingChannels,
-                hiddenUsers,
-                localRelays,
-                dontTranslateFrom,
-                languagePreferences,
-                translateTo,
-                zapAmountChoices,
-                defaultZapType,
-                defaultFileServer,
-                zapPaymentRequestServer,
-                hideDeleteRequestDialog,
-                hideBlockAlertDialog,
-                latestContactList
+                keyPair = KeyPair(privKey = privKey?.hexToByteArray(), pubKey = pubKey.hexToByteArray()),
+                followingChannels = followingChannels,
+                followingCommunities = followingCommunities,
+                hiddenUsers = hiddenUsers,
+                localRelays = localRelays,
+                dontTranslateFrom = dontTranslateFrom,
+                languagePreferences = languagePreferences,
+                translateTo = translateTo,
+                zapAmountChoices = zapAmountChoices,
+                reactionChoices = reactionChoices,
+                defaultZapType = defaultZapType,
+                defaultFileServer = defaultFileServer,
+                defaultHomeFollowList = defaultHomeFollowList,
+                defaultStoriesFollowList = defaultStoriesFollowList,
+                defaultNotificationFollowList = defaultNotificationFollowList,
+                defaultDiscoveryFollowList = defaultDiscoveryFollowList,
+                zapPaymentRequest = zapPaymentRequestServer,
+                hideDeleteRequestDialog = hideDeleteRequestDialog,
+                hideBlockAlertDialog = hideBlockAlertDialog,
+                hideNIP24WarningDialog = hideNIP24WarningDialog,
+                backupContactList = latestContactList,
+                proxy = proxy,
+                proxyPort = proxyPort,
+                showSensitiveContent = showSensitiveContent,
+                warnAboutPostsWithReports = warnAboutReports,
+                filterSpamFromStrangers = filterSpam,
+                lastReadPerRoute = lastReadPerRoute,
+                settings = settings
             )
 
             return a
         }
     }
 
-    fun saveLastRead(route: String, timestampInSecs: Long) {
-        encryptedPreferences(currentAccount()).edit().apply {
-            putLong(PrefKeys.LAST_READ(route), timestampInSecs)
-        }.apply()
-    }
-
-    fun loadLastRead(route: String): Long {
-        encryptedPreferences(currentAccount()).run {
-            return getLong(PrefKeys.LAST_READ(route), 0)
-        }
-    }
-
     fun migrateSingleUserPrefs() {
         if (currentAccount() != null) return
 

app/src/main/java/com/vitorpamplona/amethyst/MultiPlayerPlaybackManager.kt

@@ -0,0 +1,135 @@
+package com.vitorpamplona.amethyst
+
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.util.LruCache
+import androidx.core.net.toUri
+import androidx.media3.common.C
+import androidx.media3.common.Player
+import androidx.media3.common.Player.STATE_IDLE
+import androidx.media3.common.Player.STATE_READY
+import androidx.media3.exoplayer.ExoPlayer
+import androidx.media3.session.MediaSession
+import com.vitorpamplona.amethyst.ui.MainActivity
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import kotlin.math.abs
+
+class MultiPlayerPlaybackManager(
+    private val dataSourceFactory: androidx.media3.exoplayer.source.MediaSource.Factory? = null,
+    private val cachedPositions: VideoViewedPositionCache
+) {
+    // protects from LruCache killing playing sessions
+    private val playingMap = mutableMapOf<String, MediaSession>()
+
+    private val cache =
+        object : LruCache<String, MediaSession>(10) { // up to 10 videos in the screen at the same time
+            override fun entryRemoved(
+                evicted: Boolean,
+                key: String?,
+                oldValue: MediaSession?,
+                newValue: MediaSession?
+            ) {
+                super.entryRemoved(evicted, key, oldValue, newValue)
+
+                if (!playingMap.contains(key)) {
+                    oldValue?.let {
+                        it.player.release()
+                        it.release()
+                    }
+                }
+            }
+        }
+
+    private fun getCallbackIntent(callbackUri: String, applicationContext: Context): PendingIntent {
+        return PendingIntent.getActivity(
+            applicationContext,
+            0,
+            Intent(Intent.ACTION_VIEW, callbackUri.toUri(), applicationContext, MainActivity::class.java),
+            PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
+        )
+    }
+
+    @androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
+    fun getMediaSession(id: String, uri: String, callbackUri: String?, context: Context, applicationContext: Context): MediaSession {
+        val existingSession = playingMap.get(id) ?: cache.get(id)
+        if (existingSession != null) return existingSession
+
+        val player = ExoPlayer.Builder(context).run {
+            dataSourceFactory?.let { setMediaSourceFactory(it) }
+            build()
+        }
+
+        player.apply {
+            repeatMode = Player.REPEAT_MODE_ALL
+            videoScalingMode = C.VIDEO_SCALING_MODE_SCALE_TO_FIT
+            volume = 0f
+        }
+
+        val mediaSession = MediaSession.Builder(context, player).run {
+            callbackUri?.let {
+                setSessionActivity(getCallbackIntent(it, applicationContext))
+            }
+            setId(id)
+            build()
+        }
+
+        player.addListener(object : Player.Listener {
+            override fun onIsPlayingChanged(isPlaying: Boolean) {
+                if (isPlaying) {
+                    player.setWakeMode(C.WAKE_MODE_NETWORK)
+                    playingMap.put(id, mediaSession)
+                } else {
+                    player.setWakeMode(C.WAKE_MODE_NONE)
+                    cache.put(id, mediaSession)
+                    playingMap.remove(id, mediaSession)
+                }
+            }
+
+            override fun onPlaybackStateChanged(playbackState: Int) {
+                when (playbackState) {
+                    STATE_IDLE -> {
+                        if (player.currentPosition > 5 * 60) { // 5 seconds
+                            cachedPositions.add(uri, player.currentPosition)
+                        }
+                    }
+                    STATE_READY -> {
+                        cachedPositions.get(uri)?.let { lastPosition ->
+                            if (abs(player.currentPosition - lastPosition) > 5 * 60) {
+                                player.seekTo(lastPosition)
+                            }
+                        }
+                    }
+                    else -> {
+                        if (player.currentPosition > 5 * 60) { // 5 seconds
+                            cachedPositions.add(uri, player.currentPosition)
+                        }
+                    }
+                }
+            }
+        })
+
+        cache.put(id, mediaSession)
+
+        return mediaSession
+    }
+
+    @OptIn(DelicateCoroutinesApi::class)
+    fun releaseAppPlayers() {
+        GlobalScope.launch(Dispatchers.Main) {
+            cache.evictAll()
+            playingMap.forEach {
+                it.value.player.release()
+                it.value.release()
+            }
+            playingMap.clear()
+        }
+    }
+
+    fun playingContent(): Collection<MediaSession> {
+        return playingMap.values
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/NotificationCache.kt

@@ -1,56 +0,0 @@
-package com.vitorpamplona.amethyst
-
-import androidx.lifecycle.LiveData
-import com.vitorpamplona.amethyst.ui.components.BundledUpdate
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
-
-object NotificationCache {
-    val lastReadByRoute = mutableMapOf<String, Long>()
-
-    fun markAsRead(route: String, timestampInSecs: Long) {
-        val lastTime = lastReadByRoute[route]
-        if (lastTime == null || timestampInSecs > lastTime) {
-            lastReadByRoute.put(route, timestampInSecs)
-
-            val scope = CoroutineScope(Job() + Dispatchers.IO)
-            scope.launch {
-                LocalPreferences.saveLastRead(route, timestampInSecs)
-                live.invalidateData()
-            }
-        }
-    }
-
-    fun load(route: String): Long {
-        var lastTime = lastReadByRoute[route]
-        if (lastTime == null) {
-            lastTime = LocalPreferences.loadLastRead(route)
-            lastReadByRoute[route] = lastTime
-        }
-        return lastTime
-    }
-
-    // Observers line up here.
-    val live: NotificationLiveData = NotificationLiveData(this)
-}
-
-class NotificationLiveData(val cache: NotificationCache) : LiveData<NotificationState>(NotificationState(cache)) {
-    // Refreshes observers in batches.
-    private val bundler = BundledUpdate(300, Dispatchers.Main) {
-        if (hasActiveObservers()) {
-            refresh()
-        }
-    }
-
-    fun invalidateData() {
-        bundler.invalidate()
-    }
-
-    fun refresh() {
-        postValue(NotificationState(cache))
-    }
-}
-
-class NotificationState(val cache: NotificationCache)

app/src/main/java/com/vitorpamplona/amethyst/OptOutFromFilters.kt

@@ -0,0 +1,11 @@
+package com.vitorpamplona.amethyst
+
+object OptOutFromFilters {
+    var warnAboutPostsWithReports: Boolean = true
+    var filterSpamFromStrangers: Boolean = true
+
+    fun start(warnAboutReports: Boolean, filterSpam: Boolean) {
+        warnAboutPostsWithReports = warnAboutReports
+        filterSpamFromStrangers = filterSpam
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/PlaybackClientController.kt

@@ -0,0 +1,48 @@
+package com.vitorpamplona.amethyst
+
+import android.content.ComponentName
+import android.content.Context
+import android.os.Bundle
+import android.util.Log
+import androidx.media3.session.MediaController
+import androidx.media3.session.SessionToken
+import com.google.common.util.concurrent.MoreExecutors
+
+object PlaybackClientController {
+    @androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
+    fun prepareController(
+        controllerID: String,
+        videoUri: String,
+        callbackUri: String?,
+        context: Context,
+        onReady: (MediaController) -> Unit
+    ) {
+        try {
+            // creating a bundle object
+            // creating a bundle object
+            val bundle = Bundle()
+            bundle.putString("id", controllerID)
+            bundle.putString("uri", videoUri)
+            bundle.putString("callbackUri", callbackUri)
+
+            val sessionTokenLocal = SessionToken(context, ComponentName(context, PlaybackService::class.java))
+            val controllerFuture = MediaController
+                .Builder(context, sessionTokenLocal)
+                .setConnectionHints(bundle)
+                .buildAsync()
+
+            controllerFuture.addListener(
+                {
+                    try {
+                        onReady(controllerFuture.get())
+                    } catch (e: Exception) {
+                        Log.e("Playback Client", "Failed to load Playback Client for $videoUri", e)
+                    }
+                },
+                MoreExecutors.directExecutor()
+            )
+        } catch (e: Exception) {
+            Log.e("Playback Client", "Failed to load Playback Client for $videoUri", e)
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/PlaybackService.kt

@@ -0,0 +1,123 @@
+package com.vitorpamplona.amethyst
+
+import androidx.annotation.OptIn
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.datasource.okhttp.OkHttpDataSource
+import androidx.media3.exoplayer.hls.HlsMediaSource
+import androidx.media3.exoplayer.source.MediaSource
+import androidx.media3.exoplayer.source.ProgressiveMediaSource
+import androidx.media3.session.MediaSession
+import androidx.media3.session.MediaSessionService
+import com.vitorpamplona.amethyst.service.HttpClient
+
+@UnstableApi // Extend MediaSessionService
+class PlaybackService : MediaSessionService() {
+    private var videoViewedPositionCache = VideoViewedPositionCache()
+
+    private var managerHls: MultiPlayerPlaybackManager? = null
+    private var managerProgressive: MultiPlayerPlaybackManager? = null
+    private var managerLocal: MultiPlayerPlaybackManager? = null
+
+    fun newHslDataSource(): MediaSource.Factory {
+        return HlsMediaSource.Factory(OkHttpDataSource.Factory(HttpClient.getHttpClient()))
+    }
+
+    fun newProgressiveDataSource(): MediaSource.Factory {
+        return ProgressiveMediaSource.Factory(VideoCache.get(Amethyst.instance, HttpClient.getHttpClient()))
+    }
+
+    // Create your Player and MediaSession in the onCreate lifecycle event
+    @OptIn(UnstableApi::class)
+    override fun onCreate() {
+        super.onCreate()
+
+        managerHls = MultiPlayerPlaybackManager(newHslDataSource(), videoViewedPositionCache)
+        managerProgressive = MultiPlayerPlaybackManager(newProgressiveDataSource(), videoViewedPositionCache)
+        managerLocal = MultiPlayerPlaybackManager(cachedPositions = videoViewedPositionCache)
+
+        // Stop all videos and recreates all managers when the proxy changes.
+        HttpClient.proxyChangeListeners.add(this@PlaybackService::onProxyUpdated)
+    }
+
+    private fun onProxyUpdated() {
+        val toDestroyHls = managerHls
+        val toDestroyProgressive = managerProgressive
+
+        managerHls = MultiPlayerPlaybackManager(newHslDataSource(), videoViewedPositionCache)
+        managerProgressive = MultiPlayerPlaybackManager(newProgressiveDataSource(), videoViewedPositionCache)
+
+        toDestroyHls?.releaseAppPlayers()
+        toDestroyProgressive?.releaseAppPlayers()
+    }
+
+    override fun onDestroy() {
+        HttpClient.proxyChangeListeners.remove(this@PlaybackService::onProxyUpdated)
+
+        managerHls?.releaseAppPlayers()
+        managerLocal?.releaseAppPlayers()
+        managerProgressive?.releaseAppPlayers()
+
+        super.onDestroy()
+    }
+
+    fun getAppropriateMediaSessionManager(fileName: String): MultiPlayerPlaybackManager? {
+        return if (fileName.startsWith("file")) {
+            managerLocal
+        } else if (fileName.endsWith("m3u8")) {
+            managerHls
+        } else {
+            managerProgressive
+        }
+    }
+
+    override fun onUpdateNotification(session: MediaSession, startInForegroundRequired: Boolean) {
+        // Updates any new player ready
+        super.onUpdateNotification(session, startInForegroundRequired)
+
+        // Overrides the notification with any player actually playing
+        managerHls?.playingContent()?.forEach {
+            if (it.player.isPlaying) {
+                super.onUpdateNotification(it, startInForegroundRequired)
+            }
+        }
+        managerLocal?.playingContent()?.forEach {
+            if (it.player.isPlaying) {
+                super.onUpdateNotification(session, startInForegroundRequired)
+            }
+        }
+        managerProgressive?.playingContent()?.forEach {
+            if (it.player.isPlaying) {
+                super.onUpdateNotification(session, startInForegroundRequired)
+            }
+        }
+
+        // Overrides again with playing with audio
+        managerHls?.playingContent()?.forEach {
+            if (it.player.isPlaying && it.player.volume > 0) {
+                super.onUpdateNotification(it, startInForegroundRequired)
+            }
+        }
+        managerLocal?.playingContent()?.forEach {
+            if (it.player.isPlaying && it.player.volume > 0) {
+                super.onUpdateNotification(session, startInForegroundRequired)
+            }
+        }
+        managerProgressive?.playingContent()?.forEach {
+            if (it.player.isPlaying && it.player.volume > 0) {
+                super.onUpdateNotification(session, startInForegroundRequired)
+            }
+        }
+    }
+
+    // Return a MediaSession to link with the MediaController that is making
+    // this request.
+    override fun onGetSession(controllerInfo: MediaSession.ControllerInfo): MediaSession? {
+        val id = controllerInfo.connectionHints.getString("id") ?: return null
+        val uri = controllerInfo.connectionHints.getString("uri") ?: return null
+        val callbackUri = controllerInfo.connectionHints.getString("callbackUri")
+
+        val manager = getAppropriateMediaSessionManager(uri)
+
+        return manager?.getMediaSession(id, uri, callbackUri, context = this, applicationContext = applicationContext)
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ServiceManager.kt

@@ -1,31 +1,70 @@
 package com.vitorpamplona.amethyst
 
+import android.content.Context
+import android.os.Build
+import android.util.Log
+import coil.Coil
+import coil.ImageLoader
+import coil.decode.GifDecoder
+import coil.decode.ImageDecoderDecoder
+import coil.decode.SvgDecoder
+import coil.disk.DiskCache
+import coil.util.DebugLogger
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.service.HttpClient
 import com.vitorpamplona.amethyst.service.NostrAccountDataSource
 import com.vitorpamplona.amethyst.service.NostrChannelDataSource
+import com.vitorpamplona.amethyst.service.NostrChatroomDataSource
 import com.vitorpamplona.amethyst.service.NostrChatroomListDataSource
-import com.vitorpamplona.amethyst.service.NostrGlobalDataSource
+import com.vitorpamplona.amethyst.service.NostrCommunityDataSource
+import com.vitorpamplona.amethyst.service.NostrDiscoveryDataSource
+import com.vitorpamplona.amethyst.service.NostrGeohashDataSource
+import com.vitorpamplona.amethyst.service.NostrHashtagDataSource
 import com.vitorpamplona.amethyst.service.NostrHomeDataSource
+import com.vitorpamplona.amethyst.service.NostrSearchEventOrUserDataSource
 import com.vitorpamplona.amethyst.service.NostrSingleChannelDataSource
 import com.vitorpamplona.amethyst.service.NostrSingleEventDataSource
 import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
 import com.vitorpamplona.amethyst.service.NostrThreadDataSource
 import com.vitorpamplona.amethyst.service.NostrUserProfileDataSource
+import com.vitorpamplona.amethyst.service.NostrVideoDataSource
 import com.vitorpamplona.amethyst.service.relays.Client
-import com.vitorpamplona.amethyst.service.relays.Constants
+import com.vitorpamplona.amethyst.ui.actions.ImageUploader
+import java.io.File
 
 object ServiceManager {
     private var account: Account? = null
 
-    fun start(account: Account) {
+    fun start(account: Account, context: Context) {
         this.account = account
-        start()
+        start(context)
     }
 
-    fun start() {
+    @Synchronized
+    fun start(context: Context) {
+        Log.d("ServiceManager", "Starting Relay Services")
+
         val myAccount = account
 
+        // Resets Proxy Use
+        HttpClient.start(account)
+        OptOutFromFilters.start(account?.warnAboutPostsWithReports ?: true, account?.filterSpamFromStrangers ?: true)
+        Coil.setImageLoader {
+            ImageLoader.Builder(context).components {
+                if (Build.VERSION.SDK_INT >= 28) {
+                    add(ImageDecoderDecoder.Factory())
+                } else {
+                    add(GifDecoder.Factory())
+                }
+                add(SvgDecoder.Factory())
+            }.logger(DebugLogger())
+                .diskCache { SingletonDiskCache.get(context.applicationContext) }
+                .okHttpClient { HttpClient.getHttpClient() }
+                .respectCacheHeaders(false)
+                .build()
+        }
+
         if (myAccount != null) {
             Client.connect(myAccount.activeRelays() ?: myAccount.convertLocalRelays())
 
@@ -33,34 +72,44 @@ object ServiceManager {
             NostrAccountDataSource.account = myAccount
             NostrHomeDataSource.account = myAccount
             NostrChatroomListDataSource.account = myAccount
+            NostrVideoDataSource.account = myAccount
+            NostrDiscoveryDataSource.account = myAccount
+            ImageUploader.account = myAccount
 
             // Notification Elements
-            NostrAccountDataSource.start()
             NostrHomeDataSource.start()
+            NostrAccountDataSource.start()
             NostrChatroomListDataSource.start()
+            NostrDiscoveryDataSource.start()
+            NostrVideoDataSource.start()
 
             // More Info Data Sources
             NostrSingleEventDataSource.start()
             NostrSingleChannelDataSource.start()
             NostrSingleUserDataSource.start()
-        } else {
-            // if not logged in yet, start a basic service wit default relays
-            Client.connect(Constants.convertDefaultRelays())
         }
     }
 
     fun pause() {
+        Log.d("ServiceManager", "Pausing Relay Services")
+
         NostrAccountDataSource.stop()
         NostrHomeDataSource.stop()
         NostrChannelDataSource.stop()
+        NostrChatroomDataSource.stop()
         NostrChatroomListDataSource.stop()
+        NostrDiscoveryDataSource.stop()
 
-        NostrGlobalDataSource.stop()
+        NostrCommunityDataSource.stop()
+        NostrHashtagDataSource.stop()
+        NostrGeohashDataSource.stop()
+        NostrSearchEventOrUserDataSource.stop()
         NostrSingleChannelDataSource.stop()
         NostrSingleEventDataSource.stop()
         NostrSingleUserDataSource.stop()
         NostrThreadDataSource.stop()
         NostrUserProfileDataSource.stop()
+        NostrVideoDataSource.stop()
 
         Client.disconnect()
     }
@@ -72,8 +121,32 @@ object ServiceManager {
             LocalCache.pruneOldAndHiddenMessages(it)
             LocalCache.pruneHiddenMessages(it)
             LocalCache.pruneContactLists(it)
-            LocalCache.pruneFileStorageEvents(it)
-            // LocalCache.pruneNonFollows(it)
+            LocalCache.pruneRepliesAndReactions(it)
         }
     }
 }
+
+object SingletonDiskCache {
+
+    private const val DIRECTORY = "image_cache"
+    private var instance: DiskCache? = null
+
+    @Synchronized
+    fun get(context: Context): DiskCache {
+        return instance ?: run {
+            // Create the singleton disk cache instance.
+            DiskCache.Builder()
+                .directory(context.safeCacheDir.resolve(DIRECTORY))
+                .maxSizePercent(0.2)
+                .maximumMaxSizeBytes(500L * 1024 * 1024) // 250MB
+                .build()
+                .also { instance = it }
+        }
+    }
+}
+
+internal val Context.safeCacheDir: File
+    get() {
+        val cacheDir = checkNotNull(cacheDir) { "cacheDir == null" }
+        return cacheDir.apply { mkdirs() }
+    }

app/src/main/java/com/vitorpamplona/amethyst/VideoCache.kt

@@ -1,13 +1,16 @@
 package com.vitorpamplona.amethyst
 
 import android.content.Context
-import com.google.android.exoplayer2.database.StandaloneDatabaseProvider
-import com.google.android.exoplayer2.upstream.DefaultHttpDataSource
-import com.google.android.exoplayer2.upstream.cache.CacheDataSource
-import com.google.android.exoplayer2.upstream.cache.LeastRecentlyUsedCacheEvictor
-import com.google.android.exoplayer2.upstream.cache.SimpleCache
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.database.StandaloneDatabaseProvider
+import androidx.media3.datasource.cache.CacheDataSource
+import androidx.media3.datasource.cache.LeastRecentlyUsedCacheEvictor
+import androidx.media3.datasource.cache.SimpleCache
+import androidx.media3.datasource.okhttp.OkHttpDataSource
+import okhttp3.OkHttpClient
+import java.io.File
 
-object VideoCache {
+@UnstableApi object VideoCache {
 
     var exoPlayerCacheSize: Long = 90 * 1024 * 1024 // 90MB
 
@@ -18,26 +21,35 @@ object VideoCache {
 
     lateinit var cacheDataSourceFactory: CacheDataSource.Factory
 
-    fun init(context: Context) {
-        if (!this::simpleCache.isInitialized) {
-            exoDatabaseProvider = StandaloneDatabaseProvider(context)
+    @Synchronized
+    fun initFileCache(context: Context) {
+        exoDatabaseProvider = StandaloneDatabaseProvider(context)
 
-            simpleCache = SimpleCache(
-                context.cacheDir,
-                leastRecentlyUsedCacheEvictor,
-                exoDatabaseProvider
-            )
-
-            cacheDataSourceFactory = CacheDataSource.Factory()
-                .setCache(simpleCache)
-                .setUpstreamDataSourceFactory(
-                    DefaultHttpDataSource.Factory().setAllowCrossProtocolRedirects(true)
-                )
-                .setFlags(CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR)
-        }
+        simpleCache = SimpleCache(
+            File(context.cacheDir, "exoplayer"),
+            leastRecentlyUsedCacheEvictor,
+            exoDatabaseProvider
+        )
     }
 
-    fun get(): CacheDataSource.Factory {
+    // This method should be called when proxy setting changes.
+    fun renewCacheFactory(client: OkHttpClient) {
+        cacheDataSourceFactory = CacheDataSource.Factory()
+            .setCache(simpleCache)
+            .setUpstreamDataSourceFactory(
+                OkHttpDataSource.Factory(client)
+            )
+            .setFlags(CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR)
+    }
+
+    fun get(context: Context, client: OkHttpClient): CacheDataSource.Factory {
+        if (!this::simpleCache.isInitialized) {
+            initFileCache(context)
+        }
+
+        // Renews the factory because OkHttpMight have changed.
+        renewCacheFactory(client)
+
         return cacheDataSourceFactory
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/VideoViewedPositionCache.kt

@@ -0,0 +1,15 @@
+package com.vitorpamplona.amethyst
+
+import android.util.LruCache
+
+class VideoViewedPositionCache {
+    val cachedPosition = LruCache<String, Long>(100)
+
+    fun add(uri: String, position: Long) {
+        cachedPosition.put(uri, position)
+    }
+
+    fun get(uri: String): Long? {
+        return cachedPosition.get(uri)
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/model/AntiSpamFilter.kt

@@ -2,10 +2,15 @@ package com.vitorpamplona.amethyst.model
 
 import android.util.Log
 import android.util.LruCache
+import androidx.compose.runtime.Stable
 import androidx.lifecycle.LiveData
-import com.vitorpamplona.amethyst.service.model.Event
+import com.vitorpamplona.amethyst.OptOutFromFilters
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.ui.components.BundledUpdate
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.Nip19
+import com.vitorpamplona.quartz.events.Event
 import kotlinx.coroutines.Dispatchers
 
 data class Spammer(val pubkeyHex: HexKey, var duplicatedMessages: Set<HexKey>)
@@ -14,13 +19,21 @@ class AntiSpamFilter {
     val recentMessages = LruCache<Int, String>(1000)
     val spamMessages = LruCache<Int, Spammer>(1000)
 
-    @Synchronized
     fun isSpam(event: Event, relay: Relay?): Boolean {
+        checkNotInMainThread()
+
+        if (!OptOutFromFilters.filterSpamFromStrangers) return false
+
         val idHex = event.id
 
         // if short message, ok
+        // The idea here is to avoid considering repeated "GM" messages spam.
         if (event.content.length < 50) return false
 
+        // if the message is actually short but because it cites a user/event, the nostr: string is really long, make it ok.
+        // The idea here is to avoid considering repeated "@Bot, command" messages spam, while still blocking repeated "lnbc..." invoices or fishing urls
+        if (event.content.length < 180 && Nip19.nip19regex.matcher(event.content).find()) return false
+
         // double list strategy:
         // if duplicated, it goes into spam. 1000 spam messages are saved into the spam list.
 
@@ -28,18 +41,13 @@ class AntiSpamFilter {
         val hash = (event.content + event.tags.flatten().joinToString(",")).hashCode()
 
         if ((recentMessages[hash] != null && recentMessages[hash] != idHex) || spamMessages[hash] != null) {
+            Log.w("Potential SPAM Message for sharing", "${Nip19.createNEvent(event.id, event.pubKey, event.kind, null)}")
             Log.w("Potential SPAM Message", "${event.id} ${recentMessages[hash]} ${spamMessages[hash] != null} ${relay?.url} ${event.content.replace("\n", " | ")}")
 
             // Log down offenders
-            if (spamMessages.get(hash) == null) {
-                spamMessages.put(hash, Spammer(event.pubKey, setOf(recentMessages[hash], event.id)))
-                liveSpam.invalidateData()
-            } else {
-                val spammer = spamMessages.get(hash)
-                spammer.duplicatedMessages = spammer.duplicatedMessages + event.id
+            logOffender(hash, event)
 
-                liveSpam.invalidateData()
-            }
+            liveSpam.invalidateData()
 
             return true
         }
@@ -49,24 +57,35 @@ class AntiSpamFilter {
         return false
     }
 
-    val liveSpam: AntiSpamLiveData = AntiSpamLiveData(this)
-}
-
-class AntiSpamLiveData(val cache: AntiSpamFilter) : LiveData<AntiSpamState>(AntiSpamState(cache)) {
-
-    // Refreshes observers in batches.
-    private val bundler = BundledUpdate(300, Dispatchers.Main) {
-        if (hasActiveObservers()) {
-            refresh()
+    @Synchronized
+    private fun logOffender(hashCode: Int, event: Event) {
+        if (spamMessages.get(hashCode) == null) {
+            spamMessages.put(hashCode, Spammer(event.pubKey, setOf(recentMessages[hashCode], event.id)))
+        } else {
+            val spammer = spamMessages.get(hashCode)
+            spammer.duplicatedMessages = spammer.duplicatedMessages + event.id
         }
     }
 
-    fun invalidateData() {
-        bundler.invalidate()
-    }
+    val liveSpam: AntiSpamLiveData = AntiSpamLiveData(this)
+}
 
-    private fun refresh() {
-        postValue(AntiSpamState(cache))
+@Stable
+class AntiSpamLiveData(val cache: AntiSpamFilter) : LiveData<AntiSpamState>(AntiSpamState(cache)) {
+
+    // Refreshes observers in batches.
+    private val bundler = BundledUpdate(300, Dispatchers.IO)
+
+    fun invalidateData() {
+        checkNotInMainThread()
+
+        bundler.invalidate() {
+            checkNotInMainThread()
+
+            if (hasActiveObservers()) {
+                postValue(AntiSpamState(cache))
+            }
+        }
     }
 }
 

app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt

@@ -1,28 +1,115 @@
 package com.vitorpamplona.amethyst.model
 
+import androidx.compose.runtime.Stable
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.NostrSingleChannelDataSource
-import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
 import com.vitorpamplona.amethyst.ui.components.BundledUpdate
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
-import fr.acinq.secp256k1.Hex
+import com.vitorpamplona.quartz.encoders.ATag
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.toNote
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
 import kotlinx.coroutines.Dispatchers
 import java.util.concurrent.ConcurrentHashMap
 
-class Channel(val idHex: String) {
-    var creator: User? = null
+@Stable
+class PublicChatChannel(idHex: String) : Channel(idHex) {
     var info = ChannelCreateEvent.ChannelData(null, null, null)
 
+    fun updateChannelInfo(creator: User, channelInfo: ChannelCreateEvent.ChannelData, updatedAt: Long) {
+        this.creator = creator
+        this.info = channelInfo
+        this.updatedMetadataAt = updatedAt
+
+        live.invalidateData()
+    }
+
+    override fun toBestDisplayName(): String {
+        return info.name ?: super.toBestDisplayName()
+    }
+
+    override fun summary(): String? {
+        return info.about
+    }
+
+    override fun profilePicture(): String? {
+        if (info.picture.isNullOrBlank()) return super.profilePicture()
+        return info.picture ?: super.profilePicture()
+    }
+
+    override fun anyNameStartsWith(prefix: String): Boolean {
+        return listOfNotNull(info.name, info.about)
+            .filter { it.contains(prefix, true) }.isNotEmpty()
+    }
+}
+
+@Stable
+class LiveActivitiesChannel(val address: ATag) : Channel(address.toTag()) {
+    var info: LiveActivitiesEvent? = null
+
+    override fun idNote() = address.toNAddr()
+    override fun idDisplayNote() = idNote().toShortenHex()
+    fun address() = address
+
+    fun updateChannelInfo(creator: User, channelInfo: LiveActivitiesEvent, updatedAt: Long) {
+        this.info = channelInfo
+        super.updateChannelInfo(creator, updatedAt)
+    }
+
+    override fun toBestDisplayName(): String {
+        return info?.title() ?: super.toBestDisplayName()
+    }
+
+    override fun summary(): String? {
+        return info?.summary()
+    }
+
+    override fun profilePicture(): String? {
+        return info?.image()?.ifBlank { null }
+    }
+
+    override fun anyNameStartsWith(prefix: String): Boolean {
+        return listOfNotNull(info?.title(), info?.summary())
+            .filter { it.contains(prefix, true) }.isNotEmpty()
+    }
+}
+
+@Stable
+abstract class Channel(val idHex: String) {
+    var creator: User? = null
+
     var updatedMetadataAt: Long = 0
 
     val notes = ConcurrentHashMap<HexKey, Note>()
 
-    fun id() = Hex.decode(idHex)
-    fun idNote() = id().toNote()
-    fun idDisplayNote() = idNote().toShortenHex()
+    open fun id() = Hex.decode(idHex)
+    open fun idNote() = id().toNote()
+    open fun idDisplayNote() = idNote().toShortenHex()
 
-    fun toBestDisplayName(): String {
-        return info.name ?: idDisplayNote()
+    open fun toBestDisplayName(): String {
+        return idDisplayNote()
+    }
+
+    open fun summary(): String? {
+        return null
+    }
+
+    open fun creatorName(): String? {
+        return creator?.toBestDisplayName()
+    }
+
+    open fun profilePicture(): String? {
+        return creator?.profilePicture()
+    }
+
+    open fun updateChannelInfo(creator: User, updatedAt: Long) {
+        this.creator = creator
+        this.updatedMetadataAt = updatedAt
+
+        live.invalidateData()
     }
 
     fun addNote(note: Note) {
@@ -33,23 +120,11 @@ class Channel(val idHex: String) {
         notes.remove(note.idHex)
     }
 
-    fun updateChannelInfo(creator: User, channelInfo: ChannelCreateEvent.ChannelData, updatedAt: Long) {
-        this.creator = creator
-        this.info = channelInfo
-        this.updatedMetadataAt = updatedAt
-
-        live.invalidateData()
+    fun removeNote(noteHex: String) {
+        notes.remove(noteHex)
     }
 
-    fun profilePicture(): String? {
-        if (info.picture.isNullOrBlank()) info.picture = null
-        return info.picture
-    }
-
-    fun anyNameStartsWith(prefix: String): Boolean {
-        return listOfNotNull(info.name, info.about)
-            .filter { it.startsWith(prefix, true) }.isNotEmpty()
-    }
+    abstract fun anyNameStartsWith(prefix: String): Boolean
 
     // Observers line up here.
     val live: ChannelLiveData = ChannelLiveData(this)
@@ -57,7 +132,7 @@ class Channel(val idHex: String) {
     fun pruneOldAndHiddenMessages(account: Account): Set<Note> {
         val important = notes.values
             .filter { it.author?.let { it1 -> account.isHidden(it1) } == false }
-            .sortedBy { it.createdAt() }
+            .sortedWith(compareBy({ it.createdAt() }, { it.idHex }))
             .reversed()
             .take(1000)
             .toSet()
@@ -74,28 +149,35 @@ class Channel(val idHex: String) {
 
 class ChannelLiveData(val channel: Channel) : LiveData<ChannelState>(ChannelState(channel)) {
     // Refreshes observers in batches.
-    private val bundler = BundledUpdate(300, Dispatchers.Main) {
-        if (hasActiveObservers()) {
-            refresh()
-        }
-    }
+    private val bundler = BundledUpdate(300, Dispatchers.IO)
 
     fun invalidateData() {
-        bundler.invalidate()
-    }
+        checkNotInMainThread()
 
-    private fun refresh() {
-        postValue(ChannelState(channel))
+        bundler.invalidate() {
+            checkNotInMainThread()
+            if (hasActiveObservers()) {
+                postValue(ChannelState(channel))
+            }
+        }
     }
 
     override fun onActive() {
         super.onActive()
-        NostrSingleChannelDataSource.add(channel.idHex)
+        if (channel is PublicChatChannel) {
+            NostrSingleChannelDataSource.add(channel.idHex)
+        } else {
+            NostrSingleChannelDataSource.add(channel.idHex)
+        }
     }
 
     override fun onInactive() {
         super.onInactive()
-        NostrSingleChannelDataSource.remove(channel.idHex)
+        if (channel is PublicChatChannel) {
+            NostrSingleChannelDataSource.remove(channel.idHex)
+        } else {
+            NostrSingleChannelDataSource.remove(channel.idHex)
+        }
     }
 }
 

app/src/main/java/com/vitorpamplona/amethyst/model/HashtagIcon.kt

@@ -1,24 +1,31 @@
 package com.vitorpamplona.amethyst.model
 import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Immutable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
-fun checkForHashtagWithIcon(tag: String): HashtagIcon? {
+fun checkForHashtagWithIcon(tag: String, primary: Color): HashtagIcon? {
     return when (tag.lowercase()) {
-        "bitcoin", "btc", "timechain" -> HashtagIcon(R.drawable.ht_btc, "Bitcoin", Color.Unspecified, Modifier.padding(2.dp, 2.dp, 0.dp, 0.dp))
+        "bitcoin", "btc", "timechain", "bitcoiner", "bitcoiners" -> HashtagIcon(R.drawable.ht_btc, "Bitcoin", Color.Unspecified, Modifier.padding(2.dp, 2.dp, 0.dp, 0.dp))
         "nostr", "nostrich", "nostriches" -> HashtagIcon(R.drawable.ht_nostr, "Nostr", Color.Unspecified, Modifier.padding(1.dp, 2.dp, 0.dp, 0.dp))
         "lightning", "lightningnetwork" -> HashtagIcon(R.drawable.ht_lightning, "Lightning", Color.Unspecified, Modifier.padding(1.dp, 3.dp, 0.dp, 0.dp))
         "zap", "zaps", "zapper", "zappers", "zapping", "zapped", "zapathon", "zapraiser", "zaplife", "zapchain" -> HashtagIcon(R.drawable.zap, "Zap", Color.Unspecified, Modifier.padding(1.dp, 3.dp, 0.dp, 0.dp))
         "amethyst" -> HashtagIcon(R.drawable.amethyst, "Amethyst", Color.Unspecified, Modifier.padding(3.dp, 2.dp, 0.dp, 0.dp))
+        "onyx" -> HashtagIcon(R.drawable.black_heart, "Onyx", Color.Unspecified, Modifier.padding(1.dp, 3.dp, 0.dp, 0.dp))
+        "cashu", "ecash", "nut", "nuts", "deeznuts" -> HashtagIcon(R.drawable.cashu, "Cashu", Color.Unspecified, Modifier.padding(1.dp, 3.dp, 0.dp, 0.dp))
         "plebs", "pleb", "plebchain" -> HashtagIcon(R.drawable.plebs, "Pleb", Color.Unspecified, Modifier.padding(2.dp, 2.dp, 0.dp, 1.dp))
         "coffee", "coffeechain", "cafe" -> HashtagIcon(R.drawable.coffee, "Coffee", Color.Unspecified, Modifier.padding(2.dp, 2.dp, 0.dp, 0.dp))
         "skullofsatoshi" -> HashtagIcon(R.drawable.skull, "SkullofSatoshi", Color.Unspecified, Modifier.padding(2.dp, 1.dp, 0.dp, 0.dp))
-        "grownostr", "#permaculture", "#gardening", "#garden" -> HashtagIcon(R.drawable.grownostr, "GrowNostr", Color.Unspecified, Modifier.padding(0.dp, 1.dp, 0.dp, 1.dp))
+        "grownostr", "gardening", "garden" -> HashtagIcon(R.drawable.grownostr, "GrowNostr", Color.Unspecified, Modifier.padding(0.dp, 1.dp, 0.dp, 1.dp))
         "footstr" -> HashtagIcon(R.drawable.footstr, "Footstr", Color.Unspecified, Modifier.padding(1.dp, 1.dp, 0.dp, 0.dp))
+        "tunestr", "music", "nowplaying" -> HashtagIcon(R.drawable.tunestr, "Tunestr", primary, Modifier.padding(0.dp, 3.dp, 0.dp, 1.dp))
+        "weed", "weedstr", "420", "cannabis", "marijuana" -> HashtagIcon(R.drawable.weed, "Weed", Color.Unspecified, Modifier.padding(0.dp, 0.dp, 0.dp, 0.dp))
         else -> null
     }
 }
+
+@Immutable
 class HashtagIcon(
     val icon: Int,
     val description: String,

app/src/main/java/com/vitorpamplona/amethyst/model/Hex.kt

@@ -1,102 +0,0 @@
-package com.vitorpamplona.amethyst.model
-
-import com.vitorpamplona.amethyst.service.nip19.Nip19
-import com.vitorpamplona.amethyst.ui.note.toShortenHex
-import fr.acinq.secp256k1.Hex
-import nostr.postr.Bech32
-import nostr.postr.Persona
-import nostr.postr.bechToBytes
-import nostr.postr.toHex
-import nostr.postr.toNpub
-
-/** Makes the distinction between String and Hex **/
-typealias HexKey = String
-
-typealias NPubKey = String
-typealias NoteId = String
-
-fun NPubKey.toDisplayKey(): String {
-    return this.toShortenHex()
-}
-
-fun NoteId.toDisplayId(): String {
-    return this.toShortenHex()
-}
-
-fun ByteArray.toNote() = Bech32.encodeBytes(hrp = "note", this, Bech32.Encoding.Bech32)
-
-fun ByteArray.toHexKey(): HexKey {
-    return toHex()
-}
-
-fun HexKey.toByteArray(): ByteArray {
-    return Hex.decode(this)
-}
-
-fun HexKey.toDisplayHexKey(): String {
-    return this.toShortenHex()
-}
-
-fun decodePublicKey(key: String): ByteArray {
-    val parsed = Nip19.uriToRoute(key)
-    val pubKeyParsed = parsed?.hex?.toByteArray()
-
-    return if (key.startsWith("nsec")) {
-        Persona(privKey = key.bechToBytes()).pubKey
-    } else if (pubKeyParsed != null) {
-        pubKeyParsed
-    } else {
-        Hex.decode(key)
-    }
-}
-
-data class DirtyKeyInfo(val key: Nip19.Return, val restOfWord: String)
-
-fun parseDirtyWordForKey(mightBeAKey: String): DirtyKeyInfo? {
-    var key = mightBeAKey
-    if (key.startsWith("nostr:", true)) {
-        key = key.substring("nostr:".length)
-    }
-
-    key = key.removePrefix("@")
-
-    if (key.length < 63) {
-        return null
-    }
-
-    try {
-        val keyB32 = key.substring(0, 63)
-        val restOfWord = key.substring(63)
-
-        if (key.startsWith("nsec1", true)) {
-            // Converts to npub
-            val pubkey = Nip19.uriToRoute(Persona(privKey = keyB32.bechToBytes()).pubKey.toNpub()) ?: return null
-
-            return DirtyKeyInfo(pubkey, restOfWord)
-        } else if (key.startsWith("npub1", true)) {
-            val pubkey = Nip19.uriToRoute(keyB32) ?: return null
-
-            return DirtyKeyInfo(pubkey, restOfWord)
-        } else if (key.startsWith("note1", true)) {
-            val noteId = Nip19.uriToRoute(keyB32) ?: return null
-
-            return DirtyKeyInfo(noteId, restOfWord)
-        } else if (key.startsWith("nprofile", true)) {
-            val pubkeyRelay = Nip19.uriToRoute(keyB32 + restOfWord) ?: return null
-
-            return DirtyKeyInfo(pubkeyRelay, pubkeyRelay.additionalChars)
-        } else if (key.startsWith("nevent1", true)) {
-            val noteRelayId = Nip19.uriToRoute(keyB32 + restOfWord) ?: return null
-
-            return DirtyKeyInfo(noteRelayId, noteRelayId.additionalChars)
-        } else if (key.startsWith("naddr1", true)) {
-            val address = Nip19.uriToRoute(keyB32 + restOfWord) ?: return null
-
-            return DirtyKeyInfo(address, address.additionalChars) // no way to know when they address ends and dirt begins
-        }
-    } catch (e: Exception) {
-        e.printStackTrace()
-    }
-
-    return null
-}

app/src/main/java/com/vitorpamplona/amethyst/model/Nip47URI.kt

@@ -0,0 +1,5 @@
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.quartz.encoders.HexKey
+
+data class Nip47URI(val pubKeyHex: HexKey, val relayUri: String?, val secret: HexKey?)

app/src/main/java/com/vitorpamplona/amethyst/model/Note.kt

@@ -1,32 +1,47 @@
 package com.vitorpamplona.amethyst.model
 
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.Stable
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.NostrSingleEventDataSource
-import com.vitorpamplona.amethyst.service.model.*
-import com.vitorpamplona.amethyst.service.nip19.Nip19
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.amethyst.service.firstFullCharOrEmoji
 import com.vitorpamplona.amethyst.service.relays.EOSETime
 import com.vitorpamplona.amethyst.service.relays.Relay
+import com.vitorpamplona.amethyst.ui.actions.updated
 import com.vitorpamplona.amethyst.ui.components.BundledUpdate
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
-import fr.acinq.secp256k1.Hex
+import com.vitorpamplona.quartz.encoders.ATag
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.LnInvoiceUtil
+import com.vitorpamplona.quartz.encoders.Nip19
+import com.vitorpamplona.quartz.encoders.toNote
+import com.vitorpamplona.quartz.events.*
+import com.vitorpamplona.quartz.utils.TimeUtils
 import kotlinx.coroutines.Dispatchers
 import java.math.BigDecimal
 import java.time.Instant
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
-import java.util.Date
-import java.util.regex.Pattern
-
-val tagSearch = Pattern.compile("(?:\\s|\\A)\\#\\[([0-9]+)\\]")
 
+@Stable
 class AddressableNote(val address: ATag) : Note(address.toTag()) {
     override fun idNote() = address.toNAddr()
     override fun toNEvent() = address.toNAddr()
     override fun idDisplayNote() = idNote().toShortenHex()
     override fun address() = address
-    override fun createdAt() = (event as? LongTextNoteEvent)?.publishedAt() ?: event?.createdAt()
+    override fun createdAt(): Long? {
+        if (event == null) return null
+
+        val publishedAt = (event as? LongTextNoteEvent)?.publishedAt() ?: Long.MAX_VALUE
+        val lastCreatedAt = event?.createdAt() ?: Long.MAX_VALUE
+
+        return minOf(publishedAt, lastCreatedAt)
+    }
 }
 
+@Stable
 open class Note(val idHex: String) {
     // These fields are only available after the Text Note event is received.
     // They are immutable after that.
@@ -35,18 +50,20 @@ open class Note(val idHex: String) {
     var replyTo: List<Note>? = null
 
     // These fields are updated every time an event related to this note is received.
-    var replies = setOf<Note>()
+    var replies = listOf<Note>()
         private set
-    var reactions = setOf<Note>()
+    var reactions = mapOf<String, List<Note>>()
         private set
-    var boosts = setOf<Note>()
+    var boosts = listOf<Note>()
         private set
-    var reports = mapOf<User, Set<Note>>()
+    var reports = mapOf<User, List<Note>>()
         private set
     var zaps = mapOf<Note, Note?>()
         private set
+    var zapPayments = mapOf<Note, Note?>()
+        private set
 
-    var relays = setOf<String>()
+    var relays = listOf<String>()
         private set
 
     var lastReactionsDownloadTime: Map<String, EOSETime> = emptyMap()
@@ -58,16 +75,27 @@ open class Note(val idHex: String) {
         return Nip19.createNEvent(idHex, author?.pubkeyHex, event?.kind(), relays.firstOrNull())
     }
 
+    fun toNostrUri(): String {
+        return "nostr:${toNEvent()}"
+    }
+
     open fun idDisplayNote() = idNote().toShortenHex()
 
     fun channelHex(): HexKey? {
-        return (event as? ChannelMessageEvent)?.channel()
-            ?: (event as? ChannelMetadataEvent)?.channel()
-            ?: (event as? ChannelCreateEvent)?.id
-    }
-
-    fun channel(): Channel? {
-        return channelHex()?.let { LocalCache.checkGetOrCreateChannel(it) }
+        return if (event is ChannelMessageEvent ||
+            event is ChannelMetadataEvent ||
+            event is ChannelCreateEvent ||
+            event is LiveActivitiesChatMessageEvent ||
+            event is LiveActivitiesEvent
+        ) {
+            (event as? ChannelMessageEvent)?.channel()
+                ?: (event as? ChannelMetadataEvent)?.channel()
+                ?: (event as? ChannelCreateEvent)?.id
+                ?: (event as? LiveActivitiesChatMessageEvent)?.activity()?.toTag()
+                ?: (event as? LiveActivitiesEvent)?.address()?.toTag()
+        } else {
+            null
+        }
     }
 
     open fun address(): ATag? = null
@@ -75,11 +103,13 @@ open class Note(val idHex: String) {
     open fun createdAt() = event?.createdAt()
 
     fun loadEvent(event: Event, author: User, replyTo: List<Note>) {
-        this.event = event
-        this.author = author
-        this.replyTo = replyTo
+        if (this.event?.id() != event.id()) {
+            this.event = event
+            this.author = author
+            this.replyTo = replyTo
 
-        liveSet?.metadata?.invalidateData()
+            liveSet?.metadata?.invalidateData()
+        }
     }
 
     fun formattedDateTime(timestamp: Long): String {
@@ -90,22 +120,29 @@ open class Note(val idHex: String) {
     /**
      * This method caches signatures during each execution to avoid recalculation in longer threads
      */
-    fun replyLevelSignature(cachedSignatures: MutableMap<Note, String> = mutableMapOf()): String {
+    fun replyLevelSignature(
+        eventsToConsider: Set<Note>,
+        cachedSignatures: MutableMap<Note, String>
+    ): String {
         val replyTo = replyTo
-        if (replyTo == null || replyTo.isEmpty()) {
+        if (event is RepostEvent || event is GenericRepostEvent || replyTo == null || replyTo.isEmpty()) {
             return "/" + formattedDateTime(createdAt() ?: 0) + ";"
         }
 
-        return replyTo
+        val mySignature = replyTo
+            .filter { it in eventsToConsider } // This forces the signature to be based on a branch, avoiding two roots
             .map {
-                cachedSignatures[it] ?: it.replyLevelSignature(cachedSignatures).apply { cachedSignatures.put(it, this) }
+                cachedSignatures[it] ?: it.replyLevelSignature(eventsToConsider, cachedSignatures).apply { cachedSignatures.put(it, this) }
             }
             .maxBy { it.length }.removeSuffix(";") + "/" + formattedDateTime(createdAt() ?: 0) + ";"
+
+        cachedSignatures[this] = mySignature
+        return mySignature
     }
 
     fun replyLevel(cachedLevels: MutableMap<Note, Int> = mutableMapOf()): Int {
         val replyTo = replyTo
-        if (replyTo == null || replyTo.isEmpty()) {
+        if (event is RepostEvent || event is GenericRepostEvent || replyTo == null || replyTo.isEmpty()) {
             return 0
         }
 
@@ -122,16 +159,65 @@ open class Note(val idHex: String) {
     }
 
     fun removeReply(note: Note) {
-        replies = replies - note
-        liveSet?.replies?.invalidateData()
+        if (note in replies) {
+            replies = replies - note
+            liveSet?.replies?.invalidateData()
+        }
     }
+
     fun removeBoost(note: Note) {
-        boosts = boosts - note
-        liveSet?.boosts?.invalidateData()
+        if (note in boosts) {
+            boosts = boosts - note
+            liveSet?.boosts?.invalidateData()
+        }
     }
-    fun removeReaction(note: Note) {
-        reactions = reactions - note
+
+    fun removeAllChildNotes(): List<Note> {
+        val toBeRemoved = replies +
+            reactions.values.flatten() +
+            boosts +
+            reports.values.flatten() +
+            zaps.keys +
+            zaps.values.filterNotNull() +
+            zapPayments.keys +
+            zapPayments.values.filterNotNull()
+
+        replies = listOf<Note>()
+        reactions = mapOf<String, List<Note>>()
+        boosts = listOf<Note>()
+        reports = mapOf<User, List<Note>>()
+        zaps = mapOf<Note, Note?>()
+        zapPayments = mapOf<Note, Note?>()
+        relays = listOf<String>()
+        lastReactionsDownloadTime = emptyMap()
+
+        liveSet?.replies?.invalidateData()
         liveSet?.reactions?.invalidateData()
+        liveSet?.boosts?.invalidateData()
+        liveSet?.reports?.invalidateData()
+        liveSet?.zaps?.invalidateData()
+
+        return toBeRemoved
+    }
+
+    fun removeReaction(note: Note) {
+        val tags = note.event?.tags() ?: emptyList()
+        val reaction = note.event?.content()?.firstFullCharOrEmoji(ImmutableListOfLists(tags)) ?: "+"
+
+        if (reaction in reactions.keys && reactions[reaction]?.contains(note) == true) {
+            reactions[reaction]?.let {
+                if (note in it) {
+                    val newList = it.minus(note)
+                    if (newList.isEmpty()) {
+                        reactions = reactions.minus(reaction)
+                    } else {
+                        reactions = reactions + Pair(reaction, newList)
+                    }
+
+                    liveSet?.reactions?.invalidateData()
+                }
+            }
+        }
     }
 
     fun removeReport(deleteNote: Note) {
@@ -156,6 +242,17 @@ open class Note(val idHex: String) {
         }
     }
 
+    fun removeZapPayment(note: Note) {
+        if (zapPayments[note] != null) {
+            zapPayments = zapPayments.minus(note)
+            liveSet?.zaps?.invalidateData()
+        } else if (zapPayments.containsValue(note)) {
+            val toRemove = zapPayments.filterValues { it == note }
+            zapPayments = zapPayments.minus(toRemove.keys)
+            liveSet?.zaps?.invalidateData()
+        }
+    }
+
     fun addBoost(note: Note) {
         if (note !in boosts) {
             boosts = boosts + note
@@ -164,19 +261,70 @@ open class Note(val idHex: String) {
     }
 
     @Synchronized
-    fun addZap(zapRequest: Note, zap: Note?) {
+    private fun innerAddZap(zapRequest: Note, zap: Note?): Boolean {
         if (zapRequest !in zaps.keys) {
             zaps = zaps + Pair(zapRequest, zap)
-            liveSet?.zaps?.invalidateData()
-        } else if (zapRequest in zaps.keys && zaps[zapRequest] == null) {
+            return true
+        } else if (zaps[zapRequest] == null) {
             zaps = zaps + Pair(zapRequest, zap)
-            liveSet?.zaps?.invalidateData()
+            return true
+        }
+
+        return false
+    }
+
+    fun addZap(zapRequest: Note, zap: Note?) {
+        checkNotInMainThread()
+        if (zapRequest !in zaps.keys) {
+            val inserted = innerAddZap(zapRequest, zap)
+            if (inserted) {
+                liveSet?.zaps?.invalidateData()
+            }
+        } else if (zaps[zapRequest] == null) {
+            val inserted = innerAddZap(zapRequest, zap)
+            if (inserted) {
+                liveSet?.zaps?.invalidateData()
+            }
+        }
+    }
+
+    @Synchronized
+    private fun innerAddZapPayment(zapPaymentRequest: Note, zapPayment: Note?): Boolean {
+        if (zapPaymentRequest !in zapPayments.keys) {
+            zapPayments = zapPayments + Pair(zapPaymentRequest, zapPayment)
+            return true
+        } else if (zapPayments[zapPaymentRequest] == null) {
+            zapPayments = zapPayments + Pair(zapPaymentRequest, zapPayment)
+            return true
+        }
+
+        return false
+    }
+
+    fun addZapPayment(zapPaymentRequest: Note, zapPayment: Note?) {
+        checkNotInMainThread()
+        if (zapPaymentRequest !in zapPayments.keys) {
+            val inserted = innerAddZapPayment(zapPaymentRequest, zapPayment)
+            if (inserted) {
+                liveSet?.zaps?.invalidateData()
+            }
+        } else if (zapPayments[zapPaymentRequest] == null) {
+            val inserted = innerAddZapPayment(zapPaymentRequest, zapPayment)
+            if (inserted) {
+                liveSet?.zaps?.invalidateData()
+            }
         }
     }
 
     fun addReaction(note: Note) {
-        if (note !in reactions) {
-            reactions = reactions + note
+        val tags = note.event?.tags() ?: emptyList()
+        val reaction = note.event?.content()?.firstFullCharOrEmoji(ImmutableListOfLists(tags)) ?: "+"
+
+        if (reaction !in reactions.keys) {
+            reactions = reactions + Pair(reaction, listOf(note))
+            liveSet?.reactions?.invalidateData()
+        } else if (reactions[reaction]?.contains(note) == false) {
+            reactions = reactions + Pair(reaction, (reactions[reaction] ?: emptySet()) + note)
             liveSet?.reactions?.invalidateData()
         }
     }
@@ -185,7 +333,7 @@ open class Note(val idHex: String) {
         val author = note.author ?: return
 
         if (author !in reports.keys) {
-            reports = reports + Pair(author, setOf(note))
+            reports = reports + Pair(author, listOf(note))
             liveSet?.reports?.invalidateData()
         } else if (reports[author]?.contains(note) == false) {
             reports = reports + Pair(author, (reports[author] ?: emptySet()) + note)
@@ -203,20 +351,83 @@ open class Note(val idHex: String) {
     fun isZappedBy(user: User, account: Account): Boolean {
         // Zaps who the requester was the user
         return zaps.any {
-            it.key.author === user || account.decryptZapContentAuthor(it.key)?.pubKey == user.pubkeyHex
+            it.key.author?.pubkeyHex == user.pubkeyHex || account.decryptZapContentAuthor(it.key)?.pubKey == user.pubkeyHex
+        } || zapPayments.any {
+            val zapResponseEvent = it.value?.event as? LnZapPaymentResponseEvent
+            val response = if (zapResponseEvent != null) {
+                account.decryptZapPaymentResponseEvent(zapResponseEvent)
+            } else {
+                null
+            }
+            response is PayInvoiceSuccessResponse && account.isNIP47Author(zapResponseEvent?.requestAuthor())
         }
     }
 
-    fun isReactedBy(user: User): Boolean {
-        return reactions.any { it.author === user }
+    fun publicZapAuthors(): Set<User> {
+        // Zaps who the requester was the user
+        return zaps.mapNotNull {
+            it.key.author
+        }.toSet()
+    }
+
+    fun publicZapAuthorHexes(): Set<HexKey> {
+        // Zaps who the requester was the user
+        return zaps.mapNotNull {
+            it.key.author?.pubkeyHex
+        }.toSet()
+    }
+
+    fun reactionAuthors(): Set<User> {
+        // Zaps who the requester was the user
+        return reactions.values.map {
+            it.mapNotNull { it.author }
+        }.flatten().toSet()
+    }
+
+    fun reactionAuthorHexes(): Set<HexKey> {
+        // Zaps who the requester was the user
+        return reactions.values.map {
+            it.mapNotNull { it.author?.pubkeyHex }
+        }.flatten().toSet()
+    }
+
+    fun replyAuthorHexes(): Set<HexKey> {
+        // Zaps who the requester was the user
+        return replies.mapNotNull {
+            it.author?.pubkeyHex
+        }.toSet()
+    }
+
+    fun replyAuthors(): Set<User> {
+        // Zaps who the requester was the user
+        return replies.mapNotNull {
+            it.author
+        }.toSet()
+    }
+
+    fun boostAuthors(): Set<User> {
+        // Zaps who the requester was the user
+        return boosts.mapNotNull {
+            it.author
+        }.toSet()
+    }
+
+    fun getReactionBy(user: User): String? {
+        return reactions.firstNotNullOfOrNull {
+            if (it.value.any { it.author?.pubkeyHex == user.pubkeyHex }) {
+                it.key
+            } else {
+                null
+            }
+        }
     }
 
     fun isBoostedBy(user: User): Boolean {
-        return boosts.any { it.author === user }
+        return boosts.any { it.author?.pubkeyHex == user.pubkeyHex }
     }
 
-    fun reportsBy(user: User): Set<Note> {
-        return reports[user] ?: emptySet()
+    fun hasReportsBy(user: User): Boolean {
+        return reports[user]?.isNotEmpty() ?: false
     }
 
     fun reportAuthorsBy(users: Set<HexKey>): List<User> {
@@ -233,12 +444,48 @@ open class Note(val idHex: String) {
         }.flatten()
     }
 
-    fun zappedAmount(): BigDecimal {
-        return zaps.mapNotNull { it.value?.event }
+    fun countReactions(): Int {
+        return reactions.values.sumOf { it.size }
+    }
+
+    fun zappedAmount(privKey: ByteArray?, walletServicePubkey: ByteArray?): BigDecimal {
+        // Regular Zap Receipts
+        val completedZaps = zaps.asSequence()
+            .mapNotNull { it.value?.event }
             .filterIsInstance<LnZapEvent>()
-            .mapNotNull {
-                it.amount
-            }.sumOf { it }
+            .filter { it.amount != null }
+            .associate {
+                it.lnInvoice() to it.amount
+            }
+            .toMap()
+
+        val completedPayments = if (privKey != null && walletServicePubkey != null) {
+            // Payments confirmed by the User's Wallet
+            zapPayments
+                .asSequence()
+                .filter {
+                    val response = (it.value?.event as? LnZapPaymentResponseEvent)?.response(privKey, walletServicePubkey)
+                    response is PayInvoiceSuccessResponse
+                }
+                .associate {
+                    val lnInvoice = (it.key.event as? LnZapPaymentRequestEvent)?.lnInvoice(privKey, walletServicePubkey)
+                    val amount = try {
+                        if (lnInvoice == null) {
+                            null
+                        } else {
+                            LnInvoiceUtil.getAmountInSats(lnInvoice)
+                        }
+                    } catch (e: java.lang.Exception) {
+                        null
+                    }
+                    lnInvoice to amount
+                }
+                .toMap()
+        } else {
+            emptyMap()
+        }
+
+        return (completedZaps + completedPayments).values.filterNotNull().sumOf { it }
     }
 
     fun hasPledgeBy(user: User): Boolean {
@@ -271,7 +518,7 @@ open class Note(val idHex: String) {
     }
 
     fun hasAnyReports(): Boolean {
-        val dayAgo = Date().time / 1000 - 24 * 60 * 60
+        val dayAgo = TimeUtils.oneDayAgo()
         return reports.isNotEmpty() ||
             (
                 author?.reports?.values?.any {
@@ -281,7 +528,14 @@ open class Note(val idHex: String) {
     }
 
     fun isNewThread(): Boolean {
-        return event is RepostEvent || replyTo == null || replyTo?.size == 0
+        return (
+            event is RepostEvent ||
+                event is GenericRepostEvent ||
+                replyTo == null ||
+                replyTo?.size == 0
+            ) &&
+            event !is ChannelMessageEvent &&
+            event !is LiveActivitiesChatMessageEvent
     }
 
     fun hasZapped(loggedIn: User): Boolean {
@@ -293,18 +547,61 @@ open class Note(val idHex: String) {
     }
 
     fun reactedBy(loggedIn: User, content: String): List<Note> {
-        return reactions.filter { it.author == loggedIn && it.event?.content() == content }
+        return reactions[content]?.filter { it.author == loggedIn } ?: emptyList()
+    }
+
+    fun reactedBy(loggedIn: User): List<String> {
+        return reactions.filter { it.value.any { it.author == loggedIn } }.mapNotNull { it.key }
     }
 
     fun hasBoostedInTheLast5Minutes(loggedIn: User): Boolean {
-        val currentTime = Date().time / 1000
-        return boosts.firstOrNull { it.author == loggedIn && (it.createdAt() ?: 0) > currentTime - (60 * 5) } != null // 5 minute protection
+        return boosts.firstOrNull { it.author == loggedIn && (it.createdAt() ?: 0) > TimeUtils.fiveMinutesAgo() } != null // 5 minute protection
     }
 
     fun boostedBy(loggedIn: User): List<Note> {
         return boosts.filter { it.author == loggedIn }
     }
 
+    fun moveAllReferencesTo(note: AddressableNote) {
+        // migrates these comments to a new version
+        replies.forEach {
+            note.addReply(it)
+            it.replyTo = it.replyTo?.updated(this, note)
+        }
+        reactions.forEach {
+            it.value.forEach {
+                note.addReaction(it)
+                it.replyTo = it.replyTo?.updated(this, note)
+            }
+        }
+        boosts.forEach {
+            note.addBoost(it)
+            it.replyTo = it.replyTo?.updated(this, note)
+        }
+        reports.forEach {
+            it.value.forEach {
+                note.addReport(it)
+                it.replyTo = it.replyTo?.updated(this, note)
+            }
+        }
+        zaps.forEach {
+            note.addZap(it.key, it.value)
+            it.key.replyTo = it.key.replyTo?.updated(this, note)
+            it.value?.replyTo = it.value?.replyTo?.updated(this, note)
+        }
+
+        replyTo = null
+        replies = emptyList()
+        reactions = emptyMap()
+        boosts = emptyList()
+        reports = emptyMap()
+        zaps = emptyMap()
+    }
+
+    fun clearEOSE() {
+        lastReactionsDownloadTime = emptyMap()
+    }
+
     var liveSet: NoteLiveSet? = null
 
     fun live(): NoteLiveSet {
@@ -319,6 +616,22 @@ open class Note(val idHex: String) {
             liveSet = null
         }
     }
+
+    fun isHiddenFor(accountChoices: Account.LiveHiddenUsers): Boolean {
+        if (event == null) return false
+
+        val isBoostedNoteHidden = if (event is GenericRepostEvent || event is RepostEvent || event is CommunityPostApprovalEvent) {
+            replyTo?.lastOrNull()?.isHiddenFor(accountChoices) ?: false
+        } else {
+            false
+        }
+
+        val isSensitive = event?.isSensitive() ?: false
+        return isBoostedNoteHidden ||
+            accountChoices.hiddenUsers.contains(author?.pubkeyHex) ||
+            accountChoices.spammers.contains(author?.pubkeyHex) ||
+            (isSensitive && accountChoices.showSensitiveContent == false)
+    }
 }
 
 class NoteLiveSet(u: Note) {
@@ -345,18 +658,20 @@ class NoteLiveSet(u: Note) {
 
 class NoteLiveData(val note: Note) : LiveData<NoteState>(NoteState(note)) {
     // Refreshes observers in batches.
-    private val bundler = BundledUpdate(300, Dispatchers.Main) {
-        if (hasActiveObservers()) {
-            refresh()
-        }
-    }
+    private val bundler = BundledUpdate(500, Dispatchers.IO)
 
     fun invalidateData() {
-        bundler.invalidate()
-    }
+        if (!hasObservers()) return
 
-    private fun refresh() {
-        postValue(NoteState(note))
+        checkNotInMainThread()
+
+        bundler.invalidate() {
+            checkNotInMainThread()
+
+            if (hasActiveObservers()) {
+                postValue(NoteState(note))
+            }
+        }
     }
 
     override fun onActive() {
@@ -378,4 +693,5 @@ class NoteLiveData(val note: Note) : LiveData<NoteState>(NoteState(note)) {
     }
 }
 
+@Immutable
 class NoteState(val note: Note)

app/src/main/java/com/vitorpamplona/amethyst/model/ParticipantListBuilder.kt

@@ -0,0 +1,77 @@
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.quartz.encoders.HexKey
+
+class ParticipantListBuilder {
+    private fun addFollowsThatDirectlyParticipateOnToSet(baseNote: Note, followingSet: Set<HexKey>?, set: MutableSet<User>) {
+        baseNote.author?.let { author ->
+            if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) set.add(author)
+        }
+
+        // Breaks these searchers down to avoid the memory use of creating multiple lists
+        baseNote.replies.forEach { reply ->
+            reply.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) set.add(author)
+            }
+        }
+
+        baseNote.boosts.forEach { boost ->
+            boost.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) set.add(author)
+            }
+        }
+
+        baseNote.zaps.forEach { zapPair ->
+            zapPair.key.author?.let { author ->
+                if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) set.add(author)
+            }
+        }
+
+        baseNote.reactions.forEach { reactionSet ->
+            reactionSet.value.forEach { reaction ->
+                reaction.author?.let { author ->
+                    if (author !in set && (followingSet == null || author.pubkeyHex in followingSet)) set.add(author)
+                }
+            }
+        }
+    }
+
+    fun followsThatParticipateOnDirect(baseNote: Note?, followingSet: Set<HexKey>?): Set<User> {
+        if (baseNote == null) return mutableSetOf()
+
+        val set = mutableSetOf<User>()
+        addFollowsThatDirectlyParticipateOnToSet(baseNote, followingSet, set)
+        return set
+    }
+
+    fun followsThatParticipateOn(baseNote: Note?, followingSet: Set<HexKey>?): Set<User> {
+        if (baseNote == null) return mutableSetOf()
+
+        val mySet = mutableSetOf<User>()
+        addFollowsThatDirectlyParticipateOnToSet(baseNote, followingSet, mySet)
+
+        baseNote.replies.forEach {
+            addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet)
+        }
+
+        baseNote.boosts.forEach {
+            it.replyTo?.forEach {
+                addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet)
+            }
+        }
+
+        LocalCache.getChannelIfExists(baseNote.idHex)?.notes?.values?.forEach {
+            addFollowsThatDirectlyParticipateOnToSet(it, followingSet, mySet)
+        }
+
+        return mySet
+    }
+
+    fun countFollowsThatParticipateOn(baseNote: Note?, followingSet: Set<HexKey>?): Int {
+        if (baseNote == null) return 0
+
+        val list = followsThatParticipateOn(baseNote, followingSet)
+
+        return list.size
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/model/RelayInformation.kt

@@ -0,0 +1,60 @@
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Stable
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+
+@Stable
+class RelayInformation(
+    val id: String?,
+    val name: String?,
+    val description: String?,
+    val pubkey: String?,
+    val contact: String?,
+    val supported_nips: List<Int>?,
+    val supported_nip_extensions: List<String>?,
+    val software: String?,
+    val version: String?,
+    val limitation: RelayInformationLimitation?,
+    val relay_countries: List<String>?,
+    val language_tags: List<String>?,
+    val tags: List<String>?,
+    val posting_policy: String?,
+    val payments_url: String?,
+    val fees: RelayInformationFees?
+) {
+    companion object {
+        val mapper = jacksonObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
+
+        fun fromJson(json: String): RelayInformation = mapper.readValue(json, RelayInformation::class.java)
+    }
+}
+
+@Stable
+class RelayInformationFee(
+    val amount: Int?,
+    val unit: String?,
+    val period: Int?,
+    val kinds: List<Int>?
+)
+
+class RelayInformationFees(
+    val admission: List<RelayInformationFee>?,
+    val subscription: List<RelayInformationFee>?,
+    val publication: List<RelayInformationFee>?,
+    val retention: List<RelayInformationFee>?
+)
+
+class RelayInformationLimitation(
+    val max_message_length: Int?,
+    val max_subscriptions: Int?,
+    val max_filters: Int?,
+    val max_limit: Int?,
+    val max_subid_length: Int?,
+    val min_prefix: Int?,
+    val max_event_tags: Int?,
+    val max_content_length: Int?,
+    val min_pow_difficulty: Int?,
+    val auth_required: Boolean?,
+    val payment_required: Boolean?
+)

app/src/main/java/com/vitorpamplona/amethyst/model/RelaySetupInfo.kt

@@ -1,7 +1,9 @@
 package com.vitorpamplona.amethyst.model
 
+import androidx.compose.runtime.Immutable
 import com.vitorpamplona.amethyst.service.relays.FeedType
 
+@Immutable
 data class RelaySetupInfo(
     val url: String,
     val read: Boolean,
@@ -10,5 +12,6 @@ data class RelaySetupInfo(
     val downloadCountInBytes: Int = 0,
     val uploadCountInBytes: Int = 0,
     val spamCount: Int = 0,
-    val feedTypes: Set<FeedType>
+    val feedTypes: Set<FeedType>,
+    val paidRelay: Boolean = false
 )

app/src/main/java/com/vitorpamplona/amethyst/model/ServersAvailable.kt

@@ -0,0 +1,16 @@
+package com.vitorpamplona.amethyst.model
+
+enum class ServersAvailable {
+    // IMGUR,
+    NOSTR_BUILD,
+    NOSTRIMG,
+    NOSTRFILES_DEV,
+    NOSTRCHECK_ME,
+
+    // IMGUR_NIP_94,
+    NOSTRIMG_NIP_94,
+    NOSTR_BUILD_NIP_94,
+    NOSTRFILES_DEV_NIP_94,
+    NOSTRCHECK_ME_NIP_94,
+    NIP95
+}

app/src/main/java/com/vitorpamplona/amethyst/model/Settings.kt

@@ -0,0 +1,40 @@
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.amethyst.R
+
+@Stable
+class Settings(
+    var preferredLanguage: String? = null,
+    var automaticallyShowImages: ConnectivityType = ConnectivityType.ALWAYS,
+    var automaticallyStartPlayback: ConnectivityType = ConnectivityType.ALWAYS,
+    var automaticallyShowUrlPreview: ConnectivityType = ConnectivityType.ALWAYS
+)
+
+enum class ConnectivityType(val prefCode: Boolean?, val screenCode: Int, val reourceId: Int) {
+    ALWAYS(null, 0, R.string.connectivity_type_always),
+    WIFI_ONLY(true, 1, R.string.connectivity_type_wifi_only),
+    NEVER(false, 2, R.string.connectivity_type_never)
+}
+
+fun parseConnectivityType(code: Boolean?): ConnectivityType {
+    return when (code) {
+        ConnectivityType.ALWAYS.prefCode -> ConnectivityType.ALWAYS
+        ConnectivityType.WIFI_ONLY.prefCode -> ConnectivityType.WIFI_ONLY
+        ConnectivityType.NEVER.prefCode -> ConnectivityType.NEVER
+        else -> {
+            ConnectivityType.ALWAYS
+        }
+    }
+}
+
+fun parseConnectivityType(screenCode: Int): ConnectivityType {
+    return when (screenCode) {
+        ConnectivityType.ALWAYS.screenCode -> ConnectivityType.ALWAYS
+        ConnectivityType.WIFI_ONLY.screenCode -> ConnectivityType.WIFI_ONLY
+        ConnectivityType.NEVER.screenCode -> ConnectivityType.NEVER
+        else -> {
+            ConnectivityType.ALWAYS
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/model/ThreadAssembler.kt

@@ -1,14 +1,17 @@
 package com.vitorpamplona.amethyst.model
 
-import com.vitorpamplona.amethyst.service.model.ATag
-import kotlin.time.ExperimentalTime
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.RepostEvent
 import kotlin.time.measureTimedValue
 
 class ThreadAssembler {
 
-    fun searchRoot(note: Note, testedNotes: MutableSet<Note> = mutableSetOf()): Note? {
+    private fun searchRoot(note: Note, testedNotes: MutableSet<Note> = mutableSetOf()): Note? {
         if (note.replyTo == null || note.replyTo?.isEmpty() == true) return note
 
+        if (note.event is RepostEvent || note.event is GenericRepostEvent) return note
+
         testedNotes.add(note)
 
         val markedAsRoot = note.event?.tags()?.firstOrNull { it[0] == "e" && it.size > 3 && it[3] == "root" }?.getOrNull(1)
@@ -33,19 +36,11 @@ class ThreadAssembler {
         return null
     }
 
-    @OptIn(ExperimentalTime::class)
     fun findThreadFor(noteId: String): Set<Note> {
+        checkNotInMainThread()
+
         val (result, elapsed) = measureTimedValue {
-            val note = if (noteId.contains(":")) {
-                val aTag = ATag.parse(noteId, null)
-                if (aTag != null) {
-                    LocalCache.getOrCreateAddressableNote(aTag)
-                } else {
-                    return emptySet()
-                }
-            } else {
-                LocalCache.getOrCreateNote(noteId)
-            }
+            val note = LocalCache.checkGetOrCreateNote(noteId) ?: return emptySet<Note>()
 
             if (note.event != null) {
                 val thread = mutableSetOf<Note>()

app/src/main/java/com/vitorpamplona/amethyst/model/UrlCachedPreviewer.kt

@@ -1,46 +1,60 @@
 package com.vitorpamplona.amethyst.model
 
-import com.baha.url.preview.BahaUrlPreview
-import com.baha.url.preview.IUrlPreviewCallback
-import com.baha.url.preview.UrlInfoItem
-import kotlinx.coroutines.CoroutineScope
+import android.util.LruCache
+import androidx.compose.runtime.Stable
+import com.vitorpamplona.amethyst.service.previews.BahaUrlPreview
+import com.vitorpamplona.amethyst.service.previews.IUrlPreviewCallback
+import com.vitorpamplona.amethyst.service.previews.UrlInfoItem
+import com.vitorpamplona.amethyst.ui.components.UrlPreviewState
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
+@Stable
 object UrlCachedPreviewer {
-    var cache = mapOf<String, UrlInfoItem>()
-        private set
-    var failures = mapOf<String, Throwable>()
+    var cache = LruCache<String, UrlPreviewState>(100)
         private set
 
-    fun previewInfo(url: String, callback: IUrlPreviewCallback? = null) {
+    suspend fun previewInfo(
+        url: String,
+        onReady: suspend (UrlPreviewState) -> Unit
+    ) = withContext(Dispatchers.IO) {
         cache[url]?.let {
-            callback?.onComplete(it)
-            return
+            onReady(it)
+            return@withContext
         }
 
-        failures[url]?.let {
-            callback?.onFailed(it)
-            return
-        }
-
-        val scope = CoroutineScope(Job() + Dispatchers.IO)
-        scope.launch {
-            BahaUrlPreview(
-                url,
-                object : IUrlPreviewCallback {
-                    override fun onComplete(urlInfo: UrlInfoItem) {
-                        cache = cache + Pair(url, urlInfo)
-                        callback?.onComplete(urlInfo)
+        BahaUrlPreview(
+            url,
+            object : IUrlPreviewCallback {
+                override suspend fun onComplete(urlInfo: UrlInfoItem) = withContext(Dispatchers.IO) {
+                    cache[url]?.let {
+                        if (it is UrlPreviewState.Loaded || it is UrlPreviewState.Empty) {
+                            onReady(it)
+                            return@withContext
+                        }
                     }
 
-                    override fun onFailed(throwable: Throwable) {
-                        failures = failures + Pair(url, throwable)
-                        callback?.onFailed(throwable)
+                    val state = if (urlInfo.allFetchComplete() && urlInfo.url == url) {
+                        UrlPreviewState.Loaded(urlInfo)
+                    } else {
+                        UrlPreviewState.Empty
                     }
+
+                    cache.put(url, state)
+                    onReady(state)
                 }
-            ).fetchUrlPreview()
-        }
+
+                override suspend fun onFailed(throwable: Throwable) = withContext(Dispatchers.IO) {
+                    cache[url]?.let {
+                        onReady(it)
+                        return@withContext
+                    }
+
+                    val state = UrlPreviewState.Error(throwable.message ?: "Error Loading url preview")
+                    cache.put(url, state)
+                    onReady(state)
+                }
+            }
+        ).fetchUrlPreview()
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/model/User.kt

@@ -1,34 +1,41 @@
 package com.vitorpamplona.amethyst.model
 
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.Stable
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
-import com.vitorpamplona.amethyst.service.model.BookmarkListEvent
-import com.vitorpamplona.amethyst.service.model.ContactListEvent
-import com.vitorpamplona.amethyst.service.model.LnZapEvent
-import com.vitorpamplona.amethyst.service.model.MetadataEvent
-import com.vitorpamplona.amethyst.service.model.ReportEvent
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
 import com.vitorpamplona.amethyst.service.relays.EOSETime
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.ui.components.BundledUpdate
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
-import fr.acinq.secp256k1.Hex
+import com.vitorpamplona.quartz.encoders.Bech32
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.HexKey
+import com.vitorpamplona.quartz.encoders.toNpub
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.UserMetadata
+import com.vitorpamplona.quartz.events.toImmutableListOfLists
+import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlinx.collections.immutable.persistentSetOf
 import kotlinx.coroutines.Dispatchers
-import nostr.postr.Bech32
-import nostr.postr.toNpub
 import java.math.BigDecimal
 import java.util.regex.Pattern
 
 val lnurlpPattern = Pattern.compile("(?i:http|https):\\/\\/((.+)\\/)*\\.well-known\\/lnurlp\\/(.*)")
 
+@Stable
 class User(val pubkeyHex: String) {
     var info: UserMetadata? = null
 
     var latestContactList: ContactListEvent? = null
     var latestBookmarkList: BookmarkListEvent? = null
 
-    var notes = setOf<Note>()
-        private set
-
     var reports = mapOf<User, Set<Note>>()
         private set
 
@@ -40,18 +47,33 @@ class User(val pubkeyHex: String) {
     var relaysBeingUsed = mapOf<String, RelayInfo>()
         private set
 
-    var privateChatrooms = mapOf<User, Chatroom>()
+    var privateChatrooms = mapOf<ChatroomKey, Chatroom>()
         private set
 
-    var acceptedBadges: AddressableNote? = null
-
     fun pubkey() = Hex.decode(pubkeyHex)
     fun pubkeyNpub() = pubkey().toNpub()
 
     fun pubkeyDisplayHex() = pubkeyNpub().toShortenHex()
 
+    fun toNostrUri() = "nostr:${pubkeyNpub()}"
+
     override fun toString(): String = pubkeyHex
 
+    fun toBestShortFirstName(): String {
+        val fullName = bestDisplayName() ?: bestUsername() ?: return pubkeyDisplayHex()
+
+        val names = fullName.split(' ')
+
+        val firstName = if (names[0].length <= 3) {
+            // too short. Remove Dr.
+            "${names[0]} ${names.getOrNull(1) ?: ""}"
+        } else {
+            names[0]
+        }
+
+        return firstName
+    }
+
     fun toBestDisplayName(): String {
         return bestDisplayName() ?: bestUsername() ?: pubkeyDisplayHex()
     }
@@ -92,30 +114,15 @@ class User(val pubkeyHex: String) {
         // Update Followers of the past user list
         // Update Followers of the new contact list
         (oldContactListEvent)?.unverifiedFollowKeySet()?.forEach {
-            LocalCache.users[it]?.liveSet?.follows?.invalidateData()
+            LocalCache.users[it]?.liveSet?.followers?.invalidateData()
         }
         (latestContactList)?.unverifiedFollowKeySet()?.forEach {
-            LocalCache.users[it]?.liveSet?.follows?.invalidateData()
+            LocalCache.users[it]?.liveSet?.followers?.invalidateData()
         }
 
         liveSet?.relays?.invalidateData()
     }
 
-    fun addNote(note: Note) {
-        if (note !in notes) {
-            notes = notes + note
-            // No need for Listener yet
-        }
-    }
-
-    fun removeNote(note: Note) {
-        notes = notes - note
-    }
-
-    fun clearNotes() {
-        notes = setOf<Note>()
-    }
-
     fun addReport(note: Note) {
         val author = note.author ?: return
 
@@ -139,11 +146,6 @@ class User(val pubkeyHex: String) {
         }
     }
 
-    fun updateAcceptedBadges(note: AddressableNote) {
-        acceptedBadges = note
-        liveSet?.badges?.invalidateData()
-    }
-
     fun addZap(zapRequest: Note, zap: Note?) {
         if (zapRequest !in zaps.keys) {
             zaps = zaps + Pair(zapRequest, zap)
@@ -154,6 +156,16 @@ class User(val pubkeyHex: String) {
         }
     }
 
+    fun removeZap(zapRequestOrZapEvent: Note) {
+        if (zapRequestOrZapEvent in zaps.keys) {
+            zaps = zaps.minus(zapRequestOrZapEvent)
+            liveSet?.zaps?.invalidateData()
+        } else if (zapRequestOrZapEvent in zaps.values) {
+            zaps = zaps.filter { it.value != zapRequestOrZapEvent }
+            liveSet?.zaps?.invalidateData()
+        }
+    }
+
     fun zappedAmount(): BigDecimal {
         return zaps.mapNotNull { it.value?.event }
             .filterIsInstance<LnZapEvent>()
@@ -181,28 +193,51 @@ class User(val pubkeyHex: String) {
     }
 
     @Synchronized
-    fun getOrCreatePrivateChatroom(user: User): Chatroom {
-        return privateChatrooms[user] ?: run {
-            val privateChatroom = Chatroom(setOf<Note>())
-            privateChatrooms = privateChatrooms + Pair(user, privateChatroom)
+    private fun getOrCreatePrivateChatroomSync(key: ChatroomKey): Chatroom {
+        checkNotInMainThread()
+
+        return privateChatrooms[key] ?: run {
+            val privateChatroom = Chatroom()
+            privateChatrooms = privateChatrooms + Pair(key, privateChatroom)
             privateChatroom
         }
     }
 
-    @Synchronized
-    fun addMessage(user: User, msg: Note) {
-        val privateChatroom = getOrCreatePrivateChatroom(user)
+    private fun getOrCreatePrivateChatroom(user: User): Chatroom {
+        val key = ChatroomKey(persistentSetOf(user.pubkeyHex))
+        return getOrCreatePrivateChatroom(key)
+    }
+
+    private fun getOrCreatePrivateChatroom(key: ChatroomKey): Chatroom {
+        return privateChatrooms[key] ?: getOrCreatePrivateChatroomSync(key)
+    }
+
+    fun addMessage(room: ChatroomKey, msg: Note) {
+        val privateChatroom = getOrCreatePrivateChatroom(room)
         if (msg !in privateChatroom.roomMessages) {
-            privateChatroom.roomMessages = privateChatroom.roomMessages + msg
+            privateChatroom.addMessageSync(msg)
             liveSet?.messages?.invalidateData()
         }
     }
 
-    @Synchronized
+    fun addMessage(user: User, msg: Note) {
+        val privateChatroom = getOrCreatePrivateChatroom(user)
+        if (msg !in privateChatroom.roomMessages) {
+            privateChatroom.addMessageSync(msg)
+            liveSet?.messages?.invalidateData()
+        }
+    }
+
+    fun createChatroom(withKey: ChatroomKey) {
+        getOrCreatePrivateChatroom(withKey)
+    }
+
     fun removeMessage(user: User, msg: Note) {
+        checkNotInMainThread()
+
         val privateChatroom = getOrCreatePrivateChatroom(user)
         if (msg in privateChatroom.roomMessages) {
-            privateChatroom.roomMessages = privateChatroom.roomMessages - msg
+            privateChatroom.removeMessageSync(msg)
             liveSet?.messages?.invalidateData()
         }
     }
@@ -225,6 +260,7 @@ class User(val pubkeyHex: String) {
         info = newUserInfo
         info?.latestMetadata = latestMetadata
         info?.updatedMetadataAt = latestMetadata.createdAt
+        info?.tags = latestMetadata.tags.toImmutableListOfLists()
 
         if (newUserInfo.lud16.isNullOrBlank() && newUserInfo.lud06?.lowercase()?.startsWith("lnurl") == true) {
             try {
@@ -246,15 +282,11 @@ class User(val pubkeyHex: String) {
     }
 
     fun isFollowing(user: User): Boolean {
-        return latestContactList?.unverifiedFollowKeySet()?.toSet()?.let {
-            return user.pubkeyHex in it
-        } ?: false
+        return latestContactList?.isTaggedUser(user.pubkeyHex) ?: false
     }
 
     fun isFollowingHashtag(tag: String): Boolean {
-        return latestContactList?.unverifiedFollowTagSet()?.toSet()?.let {
-            return tag in it
-        } ?: false
+        return latestContactList?.isTaggedHash(tag) ?: false
     }
 
     fun isFollowingHashtagCached(tag: String): Boolean {
@@ -263,17 +295,29 @@ class User(val pubkeyHex: String) {
         } ?: false
     }
 
+    fun isFollowingGeohashCached(geoTag: String): Boolean {
+        return latestContactList?.verifiedFollowGeohashSet?.let {
+            return geoTag.lowercase() in it
+        } ?: false
+    }
+
     fun isFollowingCached(user: User): Boolean {
         return latestContactList?.verifiedFollowKeySet?.let {
             return user.pubkeyHex in it
         } ?: false
     }
 
+    fun isFollowingCached(userHex: String): Boolean {
+        return latestContactList?.verifiedFollowKeySet?.let {
+            return userHex in it
+        } ?: false
+    }
+
     fun transientFollowCount(): Int? {
         return latestContactList?.unverifiedFollowKeySet()?.size
     }
 
-    fun transientFollowerCount(): Int {
+    suspend fun transientFollowerCount(): Int {
         return LocalCache.users.values.count { it.latestContactList?.isTaggedUser(pubkeyHex) ?: false }
     }
 
@@ -285,18 +329,26 @@ class User(val pubkeyHex: String) {
         return latestContactList?.verifiedFollowTagSet ?: emptySet()
     }
 
+    fun cachedFollowingGeohashSet(): Set<HexKey> {
+        return latestContactList?.verifiedFollowGeohashSet ?: emptySet()
+    }
+
+    fun cachedFollowingCommunitiesSet(): Set<HexKey> {
+        return latestContactList?.verifiedFollowCommunitySet ?: emptySet()
+    }
+
     fun cachedFollowCount(): Int? {
         return latestContactList?.verifiedFollowKeySet?.size
     }
 
-    fun cachedFollowerCount(): Int {
+    suspend fun cachedFollowerCount(): Int {
         return LocalCache.users.values.count { it.latestContactList?.isTaggedUser(pubkeyHex) ?: false }
     }
 
-    fun hasSentMessagesTo(user: User?): Boolean {
-        val messagesToUser = privateChatrooms[user] ?: return false
+    fun hasSentMessagesTo(key: ChatroomKey?): Boolean {
+        val messagesToUser = privateChatrooms[key] ?: return false
 
-        return messagesToUser.roomMessages.any { this === it.author }
+        return messagesToUser.roomMessages.any { this.pubkeyHex == it.author?.pubkeyHex }
     }
 
     fun hasReport(loggedIn: User, type: ReportEvent.ReportType): Boolean {
@@ -328,86 +380,107 @@ class User(val pubkeyHex: String) {
 class UserLiveSet(u: User) {
     // UI Observers line up here.
     val follows: UserLiveData = UserLiveData(u)
+    val followers: UserLiveData = UserLiveData(u)
     val reports: UserLiveData = UserLiveData(u)
     val messages: UserLiveData = UserLiveData(u)
     val relays: UserLiveData = UserLiveData(u)
     val relayInfo: UserLiveData = UserLiveData(u)
     val metadata: UserLiveData = UserLiveData(u)
     val zaps: UserLiveData = UserLiveData(u)
-    val badges: UserLiveData = UserLiveData(u)
     val bookmarks: UserLiveData = UserLiveData(u)
 
     fun isInUse(): Boolean {
         return follows.hasObservers() ||
+            followers.hasObservers() ||
             reports.hasObservers() ||
             messages.hasObservers() ||
             relays.hasObservers() ||
             relayInfo.hasObservers() ||
             metadata.hasObservers() ||
             zaps.hasObservers() ||
-            badges.hasObservers() ||
             bookmarks.hasObservers()
     }
 }
 
+@Immutable
 data class RelayInfo(
     val url: String,
     var lastEvent: Long,
     var counter: Long
 )
 
-data class Chatroom(var roomMessages: Set<Note>)
+@Stable
+class Chatroom() {
+    var roomMessages: Set<Note> = setOf()
+    var subject: String? = null
+    var subjectCreatedAt: Long? = null
 
-class UserMetadata {
-    var name: String? = null
-    var username: String? = null
-    var display_name: String? = null
-    var displayName: String? = null
-    var picture: String? = null
-    var banner: String? = null
-    var website: String? = null
-    var about: String? = null
+    @Synchronized
+    fun addMessageSync(msg: Note) {
+        checkNotInMainThread()
 
-    var nip05: String? = null
-    var nip05Verified: Boolean = false
-    var nip05LastVerificationTime: Long? = 0
+        if (msg !in roomMessages) {
+            roomMessages = roomMessages + msg
 
-    var domain: String? = null
-    var lud06: String? = null
-    var lud16: String? = null
+            val newSubject = msg.event?.subject()
 
-    var publish: String? = null
-    var iris: String? = null
-    var main_relay: String? = null
-    var twitter: String? = null
-
-    var updatedMetadataAt: Long = 0
-    var latestMetadata: MetadataEvent? = null
-
-    fun anyNameStartsWith(prefix: String): Boolean {
-        return listOfNotNull(name, username, display_name, displayName, nip05, lud06, lud16)
-            .any { it.startsWith(prefix, true) }
+            if (newSubject != null && (msg.createdAt() ?: 0) > (subjectCreatedAt ?: 0)) {
+                subject = newSubject
+                subjectCreatedAt = msg.createdAt()
+            }
+        }
     }
 
-    fun lnAddress(): String? {
-        return (lud16?.trim() ?: lud06?.trim())?.ifBlank { null }
+    @Synchronized
+    fun removeMessageSync(msg: Note) {
+        checkNotInMainThread()
+
+        if (msg !in roomMessages) {
+            roomMessages = roomMessages + msg
+
+            roomMessages.filter { it.event?.subject() != null }.sortedBy { it.createdAt() }.lastOrNull()?.let {
+                subject = it.event?.subject()
+                subjectCreatedAt = it.createdAt()
+            }
+        }
+    }
+
+    fun senderIntersects(keySet: Set<HexKey>): Boolean {
+        return roomMessages.any { it.author?.pubkeyHex in keySet }
+    }
+
+    fun pruneMessagesToTheLatestOnly(): Set<Note> {
+        val sorted = roomMessages.sortedWith(compareBy({ it.createdAt() }, { it.idHex })).reversed()
+
+        val toKeep = if ((sorted.firstOrNull()?.createdAt() ?: 0) > TimeUtils.oneWeekAgo()) {
+            // Recent messages, keep last 100
+            sorted.take(100).toSet()
+        } else {
+            // Old messages, keep the last one.
+            sorted.take(1).toSet()
+        } + sorted.filter { it.liveSet?.isInUse() ?: false }
+
+        val toRemove = roomMessages.minus(toKeep)
+        roomMessages = toKeep
+        return toRemove
     }
 }
 
 class UserLiveData(val user: User) : LiveData<UserState>(UserState(user)) {
     // Refreshes observers in batches.
-    private val bundler = BundledUpdate(300, Dispatchers.Main) {
-        if (hasActiveObservers()) {
-            refresh()
-        }
-    }
+    private val bundler = BundledUpdate(500, Dispatchers.IO)
 
     fun invalidateData() {
-        bundler.invalidate()
-    }
+        if (!hasObservers()) return
+        checkNotInMainThread()
 
-    private fun refresh() {
-        postValue(UserState(user))
+        bundler.invalidate() {
+            checkNotInMainThread()
+
+            if (hasActiveObservers()) {
+                postValue(UserState(user))
+            }
+        }
     }
 
     override fun onActive() {
@@ -421,4 +494,5 @@ class UserLiveData(val user: User) : LiveData<UserState>(UserState(user)) {
     }
 }
 
+@Immutable
 class UserState(val user: User)

app/src/main/java/com/vitorpamplona/amethyst/service/BlurHashDecoder.kt

@@ -49,6 +49,8 @@ object BlurHashDecoder {
      *                 By default it is true.
      */
     fun decode(blurHash: String?, width: Int, height: Int, punch: Float = 1f, useCache: Boolean = true): Bitmap? {
+        checkNotInMainThread()
+
         if (blurHash == null || blurHash.length < 6) {
             return null
         }

app/src/main/java/com/vitorpamplona/amethyst/service/BlurHashImage.kt

@@ -2,6 +2,7 @@ package com.vitorpamplona.amethyst.service
 
 import android.content.Context
 import android.net.Uri
+import androidx.compose.runtime.Stable
 import androidx.core.graphics.drawable.toDrawable
 import coil.ImageLoader
 import coil.decode.DataSource
@@ -14,12 +15,15 @@ import java.net.URLDecoder
 import java.net.URLEncoder
 import kotlin.math.roundToInt
 
+@Stable
 class BlurHashFetcher(
     private val options: Options,
     private val data: Uri
 ) : Fetcher {
 
     override suspend fun fetch(): FetchResult {
+        checkNotInMainThread()
+
         val encodedHash = data.toString().removePrefix("bluehash:")
         val hash = URLDecoder.decode(encodedHash, "utf-8")
 
@@ -59,7 +63,6 @@ object BlurHashRequester {
             .Builder(context)
             .data("bluehash:$encodedMessage")
             .fetcherFactory(BlurHashFetcher.Factory)
-            .crossfade(100)
             .build()
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/CachedRichTextParser.kt

@@ -0,0 +1,292 @@
+package com.vitorpamplona.amethyst.service
+
+import android.util.Log
+import android.util.LruCache
+import android.util.Patterns
+import androidx.compose.runtime.Immutable
+import com.linkedin.urls.detection.UrlDetector
+import com.linkedin.urls.detection.UrlDetectorOptions
+import com.vitorpamplona.amethyst.ui.components.ZoomableUrlContent
+import com.vitorpamplona.amethyst.ui.components.ZoomableUrlImage
+import com.vitorpamplona.amethyst.ui.components.ZoomableUrlVideo
+import com.vitorpamplona.amethyst.ui.components.hashTagsPattern
+import com.vitorpamplona.amethyst.ui.components.imageExtensions
+import com.vitorpamplona.amethyst.ui.components.startsWithNIP19Scheme
+import com.vitorpamplona.amethyst.ui.components.tagIndex
+import com.vitorpamplona.amethyst.ui.components.videoExtensions
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.ImmutableMap
+import kotlinx.collections.immutable.ImmutableSet
+import kotlinx.collections.immutable.persistentListOf
+import kotlinx.collections.immutable.toImmutableList
+import kotlinx.collections.immutable.toImmutableMap
+import kotlinx.collections.immutable.toImmutableSet
+import java.util.regex.Pattern
+
+@Immutable
+data class RichTextViewerState(
+    val urlSet: ImmutableSet<String>,
+    val imagesForPager: ImmutableMap<String, ZoomableUrlContent>,
+    val imageList: ImmutableList<ZoomableUrlContent>,
+    val customEmoji: ImmutableMap<String, String>,
+    val paragraphs: ImmutableList<ParagraphState>
+)
+
+data class ParagraphState(val words: ImmutableList<Segment>, val isRTL: Boolean)
+
+object CachedRichTextParser {
+    val richTextCache = LruCache<String, RichTextViewerState>(200)
+
+    fun parseText(content: String, tags: ImmutableListOfLists<String>): RichTextViewerState {
+        return if (richTextCache[content] != null) {
+            richTextCache[content]
+        } else {
+            val newUrls = RichTextParser().parseText(content, tags)
+            richTextCache.put(content, newUrls)
+            newUrls
+        }
+    }
+}
+
+// Group 1 = url, group 4 additional chars
+// val noProtocolUrlValidator = Pattern.compile("(([\\w\\d-]+\\.)*[a-zA-Z][\\w-]+[\\.\\:]\\w+([\\/\\?\\=\\&\\#\\.]?[\\w-]+)*\\/?)(.*)")
+
+// Android9 seems to have an issue starting this regex.
+val noProtocolUrlValidator = try {
+    Pattern.compile("(([\\w\\d-]+\\.)*[a-zA-Z][\\w-]+[\\.\\:]\\w+([\\/\\?\\=\\&\\#\\.]?[\\w-]+[^\\p{IsHan}\\p{IsHiragana}\\p{IsKatakana}])*\\/?)(.*)")
+} catch (e: Exception) {
+    Pattern.compile("(([\\w\\d-]+\\.)*[a-zA-Z][\\w-]+[\\.\\:]\\w+([\\/\\?\\=\\&\\#\\.]?[\\w-]+)*\\/?)(.*)")
+}
+
+val HTTPRegex = "^((http|https)://)?([A-Za-z0-9-_]+(\\.[A-Za-z0-9-_]+)+)(:[0-9]+)?(/[^?#]*)?(\\?[^#]*)?(#.*)?".toRegex(RegexOption.IGNORE_CASE)
+
+class RichTextParser() {
+    fun parseText(
+        content: String,
+        tags: ImmutableListOfLists<String>
+    ): RichTextViewerState {
+        val urls = UrlDetector(content, UrlDetectorOptions.Default).detect()
+
+        val urlSet = urls.mapNotNullTo(LinkedHashSet(urls.size)) {
+            // removes e-mails
+            if (Patterns.EMAIL_ADDRESS.matcher(it.originalUrl).matches()) {
+                null
+            } else if (isNumber(it.originalUrl)) {
+                null
+            } else if (it.originalUrl.contains("。")) {
+                null
+            } else {
+                if (HTTPRegex.matches(it.originalUrl)) {
+                    it.originalUrl
+                } else {
+                    null
+                }
+            }
+        }
+
+        val imagesForPager = urlSet.mapNotNull { fullUrl ->
+            val removedParamsFromUrl = fullUrl.split("?")[0].lowercase()
+            if (imageExtensions.any { removedParamsFromUrl.endsWith(it) }) {
+                ZoomableUrlImage(fullUrl)
+            } else if (videoExtensions.any { removedParamsFromUrl.endsWith(it) }) {
+                ZoomableUrlVideo(fullUrl)
+            } else {
+                null
+            }
+        }.associateBy { it.url }
+        val imageList = imagesForPager.values.toList()
+
+        val emojiMap =
+            tags.lists.filter { it.size > 2 && it[0] == "emoji" }.associate { ":${it[1]}:" to it[2] }
+
+        val segments = findTextSegments(content, imagesForPager.keys, urlSet, emojiMap, tags)
+
+        return RichTextViewerState(
+            urlSet.toImmutableSet(),
+            imagesForPager.toImmutableMap(),
+            imageList.toImmutableList(),
+            emojiMap.toImmutableMap(),
+            segments
+        )
+    }
+
+    private fun findTextSegments(content: String, images: Set<String>, urls: Set<String>, emojis: Map<String, String>, tags: ImmutableListOfLists<String>): ImmutableList<ParagraphState> {
+        var paragraphSegments = persistentListOf<ParagraphState>()
+
+        content.split('\n').forEach { paragraph ->
+            var segments = persistentListOf<Segment>()
+            var isDirty = false
+
+            val isRTL = isArabic(paragraph)
+
+            val wordList = paragraph.trimEnd().split(' ')
+            wordList.forEach { word ->
+                val wordSegment = wordIdentifier(word, images, urls, emojis, tags)
+                if (wordSegment !is RegularTextSegment) {
+                    isDirty = true
+                }
+                segments = segments.add(wordSegment)
+            }
+
+            val newSegments = if (isDirty) {
+                ParagraphState(segments, isRTL)
+            } else {
+                ParagraphState(persistentListOf<Segment>(RegularTextSegment(paragraph)), isRTL)
+            }
+
+            paragraphSegments = paragraphSegments.add(newSegments)
+        }
+
+        return paragraphSegments
+    }
+
+    fun isNumber(word: String): Boolean {
+        return numberPattern.matcher(word).matches()
+    }
+
+    fun isDate(word: String): Boolean {
+        return shortDatePattern.matcher(word).matches() || longDatePattern.matcher(word).matches()
+    }
+
+    private fun isArabic(text: String): Boolean {
+        return text.any { it in '\u0600'..'\u06FF' || it in '\u0750'..'\u077F' }
+    }
+
+    private fun wordIdentifier(word: String, images: Set<String>, urls: Set<String>, emojis: Map<String, String>, tags: ImmutableListOfLists<String>): Segment {
+        val emailMatcher = Patterns.EMAIL_ADDRESS.matcher(word)
+        val phoneMatcher = Patterns.PHONE.matcher(word)
+        val schemelessMatcher = noProtocolUrlValidator.matcher(word)
+
+        return if (word.isEmpty()) {
+            RegularTextSegment(word)
+        } else if (images.contains(word)) {
+            ImageSegment(word)
+        } else if (urls.contains(word)) {
+            LinkSegment(word)
+        } else if (emojis.any { word.contains(it.key) }) {
+            EmojiSegment(word)
+        } else if (word.startsWith("lnbc", true)) {
+            InvoiceSegment(word)
+        } else if (word.startsWith("lnurl", true)) {
+            WithdrawSegment(word)
+        } else if (word.startsWith("cashuA", true)) {
+            CashuSegment(word)
+        } else if (emailMatcher.matches()) {
+            EmailSegment(word)
+        } else if (word.length in 7..14 && !isDate(word) && phoneMatcher.matches()) {
+            PhoneSegment(word)
+        } else if (startsWithNIP19Scheme(word)) {
+            BechSegment(word)
+        } else if (word.startsWith("#")) {
+            parseHash(word, tags)
+        } else if (word.contains(".") && schemelessMatcher.find()) {
+            val url = schemelessMatcher.group(1) // url
+            val additionalChars = schemelessMatcher.group(4) // additional chars
+            val pattern = """^([A-Za-z0-9-_]+(\.[A-Za-z0-9-_]+)+)(:[0-9]+)?(/[^?#]*)?(\?[^#]*)?(#.*)?""".toRegex(RegexOption.IGNORE_CASE)
+            if (pattern.find(word) != null) {
+                SchemelessUrlSegment(word, url, additionalChars)
+            } else {
+                RegularTextSegment(word)
+            }
+        } else {
+            RegularTextSegment(word)
+        }
+    }
+
+    private fun parseHash(word: String, tags: ImmutableListOfLists<String>): Segment {
+        // First #[n]
+
+        val matcher = tagIndex.matcher(word)
+        try {
+            if (matcher.find()) {
+                val index = matcher.group(1)?.toInt()
+                val suffix = matcher.group(2)
+
+                if (index != null && index >= 0 && index < tags.lists.size) {
+                    val tag = tags.lists[index]
+
+                    if (tag.size > 1) {
+                        if (tag[0] == "p") {
+                            return HashIndexUserSegment(word, tag[1], suffix)
+                        } else if (tag[0] == "e" || tag[0] == "a") {
+                            return HashIndexEventSegment(word, tag[1], suffix)
+                        }
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            Log.w("Tag Parser", "Couldn't link tag $word", e)
+        }
+
+        // Second #Amethyst
+        val hashtagMatcher = hashTagsPattern.matcher(word)
+
+        try {
+            if (hashtagMatcher.find()) {
+                val hashtag = hashtagMatcher.group(1)
+                if (hashtag != null) {
+                    return HashTagSegment(word, hashtag, hashtagMatcher.group(2))
+                }
+            }
+        } catch (e: Exception) {
+            Log.e("Hashtag Parser", "Couldn't link hashtag $word", e)
+        }
+
+        return RegularTextSegment(word)
+    }
+
+    companion object {
+        val longDatePattern: Pattern = Pattern.compile("^\\d{4}-\\d{2}-\\d{2}$")
+        val shortDatePattern: Pattern = Pattern.compile("^\\d{2}-\\d{2}-\\d{2}$")
+        val numberPattern: Pattern = Pattern.compile("^(-?[\\d.]+)([a-zA-Z%]*)$")
+    }
+}
+
+@Immutable
+open class Segment(val segmentText: String)
+
+@Immutable
+class ImageSegment(segment: String) : Segment(segment)
+
+@Immutable
+class LinkSegment(segment: String) : Segment(segment)
+
+@Immutable
+class EmojiSegment(segment: String) : Segment(segment)
+
+@Immutable
+class InvoiceSegment(segment: String) : Segment(segment)
+
+@Immutable
+class WithdrawSegment(segment: String) : Segment(segment)
+
+@Immutable
+class CashuSegment(segment: String) : Segment(segment)
+
+@Immutable
+class EmailSegment(segment: String) : Segment(segment)
+
+@Immutable
+class PhoneSegment(segment: String) : Segment(segment)
+
+@Immutable
+class BechSegment(segment: String) : Segment(segment)
+
+@Immutable
+open class HashIndexSegment(segment: String, val hex: String, val extras: String?) : Segment(segment)
+
+@Immutable
+class HashIndexUserSegment(segment: String, hex: String, extras: String?) : HashIndexSegment(segment, hex, extras)
+
+@Immutable
+class HashIndexEventSegment(segment: String, hex: String, extras: String?) : HashIndexSegment(segment, hex, extras)
+
+@Immutable
+class HashTagSegment(segment: String, val hashtag: String, val extras: String?) : Segment(segment)
+
+@Immutable
+class SchemelessUrlSegment(segment: String, val url: String, val extras: String?) : Segment(segment)
+
+@Immutable
+class RegularTextSegment(segment: String) : Segment(segment)

app/src/main/java/com/vitorpamplona/amethyst/service/CashuProcessor.kt

@@ -0,0 +1,100 @@
+package com.vitorpamplona.amethyst.service
+
+import androidx.compose.runtime.Immutable
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.vitorpamplona.amethyst.service.lnurl.LightningAddressResolver
+import com.vitorpamplona.amethyst.ui.components.GenericLoadable
+import com.vitorpamplona.quartz.events.Event
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+import java.util.Base64
+
+@Immutable
+data class CashuToken(
+    val token: String,
+    val mint: String,
+    val totalAmount: Long,
+    val fees: Int,
+    val redeemInvoiceAmount: Long,
+    val proofs: JsonNode
+)
+
+class CashuProcessor {
+    fun parse(cashuToken: String): GenericLoadable<CashuToken> {
+        checkNotInMainThread()
+
+        try {
+            val base64token = cashuToken.replace("cashuA", "")
+            val cashu = jacksonObjectMapper().readTree(String(Base64.getDecoder().decode(base64token)))
+            val token = cashu.get("token").get(0)
+            val proofs = token.get("proofs")
+            val mint = token.get("mint").asText()
+
+            var totalAmount = 0L
+            for (proof in proofs) {
+                totalAmount += proof.get("amount").asLong()
+            }
+            val fees = Math.max(((totalAmount * 0.02).toInt()), 2)
+            val redeemInvoiceAmount = totalAmount - fees
+
+            return GenericLoadable.Loaded(CashuToken(cashuToken, mint, totalAmount, fees, redeemInvoiceAmount, proofs))
+        } catch (e: Exception) {
+            return GenericLoadable.Error<CashuToken>("Could not parse this cashu token")
+        }
+    }
+
+    fun melt(token: CashuToken, lud16: String, onSuccess: (String) -> Unit, onError: (String) -> Unit) {
+        checkNotInMainThread()
+
+        runCatching {
+            LightningAddressResolver().lnAddressInvoice(
+                lnaddress = lud16,
+                milliSats = token.redeemInvoiceAmount * 1000, // Make invoice and leave room for fees
+                message = "Redeem Cashu",
+                onSuccess = { invoice ->
+                    meltInvoice(token, invoice, onSuccess, onError)
+                },
+                onProgress = {
+                },
+                onError = onError
+            )
+        }
+    }
+
+    private fun meltInvoice(token: CashuToken, invoice: String, onSuccess: (String) -> Unit, onError: (String) -> Unit) {
+        try {
+            val client = HttpClient.getHttpClient()
+            val url = token.mint + "/melt" // Melt cashu tokens at Mint
+
+            val factory = Event.mapper.nodeFactory
+
+            val jsonObject = factory.objectNode()
+            jsonObject.put("proofs", token.proofs)
+            jsonObject.put("pr", invoice)
+
+            val mediaType = "application/json; charset=utf-8".toMediaType()
+            val requestBody = jsonObject.toString().toRequestBody(mediaType)
+            val request = Request.Builder()
+                .url(url)
+                .post(requestBody)
+                .build()
+
+            client.newCall(request).execute().use {
+                val body = it.body.string()
+                val tree = jacksonObjectMapper().readTree(body)
+
+                val successful = tree?.get("paid")?.asText() == "true"
+
+                if (successful) {
+                    onSuccess("Redeemed ${token.totalAmount} Sats" + " (Fees: ${token.fees} Sats)")
+                } else {
+                    onError(tree?.get("detail")?.asText()?.split('.')?.getOrNull(0) ?: "Cashu: Tokens already spent.")
+                }
+            }
+        } catch (e: Exception) {
+            onError("Token melt failure: " + e.message)
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/EmojiUtils.kt

@@ -0,0 +1,107 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.quartz.events.ImmutableListOfLists
+
+fun String.isUTF16Char(pos: Int): Boolean {
+    return Character.charCount(this.codePointAt(pos)) == 2
+}
+
+fun String.firstFullCharOld(): String {
+    return when (this.length) {
+        0, 1 -> return this
+        2, 3 -> return if (isUTF16Char(0)) this.take(2) else this.take(1)
+        else -> {
+            val first = isUTF16Char(0)
+            val second = isUTF16Char(2)
+            if (first && second) {
+                this.take(4)
+            } else if (first) {
+                this.take(2)
+            } else {
+                this.take(1)
+            }
+        }
+    }
+}
+
+fun String.firstFullChar(): String {
+    var isInJoin = false
+    var hasHadSecondChance = false
+    var start = 0
+    var previousCharLength = 0
+    var next: Int
+    var codePoint: Int
+
+    var i = 0
+
+    while (i < this.length) {
+        codePoint = codePointAt(i)
+
+        // Skips if it starts with the join char 0x200D
+        if (codePoint == 0x200D && previousCharLength == 0) {
+            next = offsetByCodePoints(i, 1)
+            start = next
+        } else {
+            // If join, searches for the next char
+            if (codePoint == 0xFE0F) {
+            } else if (codePoint == 0x200D) {
+                isInJoin = true
+            } else {
+                // stops when two chars are not joined together
+                if (previousCharLength > 0 && !isInJoin) {
+                    if (Character.charCount(codePoint) == 1 || hasHadSecondChance) {
+                        break
+                    } else {
+                        hasHadSecondChance = true
+                    }
+                } else {
+                    hasHadSecondChance = false
+                }
+
+                isInJoin = false
+            }
+
+            // next char to evaluate
+            next = offsetByCodePoints(i, 1)
+            previousCharLength += (next - i)
+        }
+
+        i = next
+    }
+
+    // if ends in join, then seachers backwards until a char is found.
+    if (isInJoin) {
+        i = previousCharLength - 1
+        while (i > 0) {
+            if (this[i].code == 0x200D) {
+                previousCharLength -= 1
+            } else {
+                break
+            }
+
+            i -= 1
+        }
+    }
+
+    return substring(start, start + previousCharLength)
+}
+
+fun String.firstFullCharOrEmoji(tags: ImmutableListOfLists<String>): String {
+    if (length <= 2) {
+        return firstFullChar()
+    }
+
+    if (this[0] == ':') {
+        // makes sure an emoji exists
+        val emojiParts = this.split(":", limit = 3)
+        if (emojiParts.size >= 2) {
+            val emojiName = emojiParts[1]
+            val emojiUrl = tags.lists.firstOrNull() { it.size > 1 && it[1] == emojiName }?.getOrNull(2)
+            if (emojiUrl != null) {
+                return ":$emojiName:$emojiUrl"
+            }
+        }
+    }
+
+    return firstFullChar()
+}

app/src/main/java/com/vitorpamplona/amethyst/service/FileHeader.kt

@@ -3,10 +3,10 @@ package com.vitorpamplona.amethyst.service
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.util.Log
-import com.vitorpamplona.amethyst.model.toHexKey
+import com.vitorpamplona.amethyst.ui.actions.ImageDownloader
+import com.vitorpamplona.quartz.crypto.CryptoUtils
+import com.vitorpamplona.quartz.encoders.toHexKey
 import io.trbl.blurhash.BlurHash
-import java.net.URL
-import java.security.MessageDigest
 import kotlin.math.roundToInt
 
 class FileHeader(
@@ -14,24 +14,41 @@ class FileHeader(
     val mimeType: String?,
     val hash: String,
     val size: Int,
+    val dim: String?,
     val blurHash: String?,
-    val description: String? = null
+    val description: String? = null,
+    val sensitiveContent: Boolean = false
 ) {
     companion object {
-        fun prepare(fileUrl: String, mimeType: String?, description: String?, onReady: (FileHeader) -> Unit, onError: () -> Unit) {
-            val imageData = URL(fileUrl).readBytes()
+        suspend fun prepare(fileUrl: String, mimeType: String?, description: String?, sensitiveContent: Boolean, onReady: (FileHeader) -> Unit, onError: () -> Unit) {
+            try {
+                val imageData: ByteArray? = ImageDownloader().waitAndGetImage(fileUrl)
 
-            prepare(imageData, fileUrl, mimeType, description, onReady, onError)
+                if (imageData != null) {
+                    prepare(imageData, fileUrl, mimeType, description, sensitiveContent, onReady, onError)
+                } else {
+                    onError()
+                }
+            } catch (e: Exception) {
+                Log.e("ImageDownload", "Couldn't download image from server: ${e.message}")
+                onError()
+            }
         }
 
-        fun prepare(data: ByteArray, fileUrl: String, mimeType: String?, description: String?, onReady: (FileHeader) -> Unit, onError: () -> Unit) {
+        fun prepare(
+            data: ByteArray,
+            fileUrl: String,
+            mimeType: String?,
+            description: String?,
+            sensitiveContent: Boolean,
+            onReady: (FileHeader) -> Unit,
+            onError: () -> Unit
+        ) {
             try {
-                val sha256 = MessageDigest.getInstance("SHA-256")
-
-                val hash = sha256.digest(data).toHexKey()
+                val hash = CryptoUtils.sha256(data).toHexKey()
                 val size = data.size
 
-                val blurHash = if (mimeType?.startsWith("image/") == true) {
+                val (blurHash, dim) = if (mimeType?.startsWith("image/") == true) {
                     val opt = BitmapFactory.Options()
                     opt.inPreferredConfig = Bitmap.Config.ARGB_8888
                     val mBitmap = BitmapFactory.decodeByteArray(data, 0, data.size, opt)
@@ -47,20 +64,22 @@ class FileHeader(
                         mBitmap.height
                     )
 
+                    val dim = "${mBitmap.width}x${mBitmap.height}"
+
                     val aspectRatio = (mBitmap.width).toFloat() / (mBitmap.height).toFloat()
 
                     if (aspectRatio > 1) {
-                        BlurHash.encode(intArray, mBitmap.width, mBitmap.height, 9, (9 * (1 / aspectRatio)).roundToInt())
+                        Pair(BlurHash.encode(intArray, mBitmap.width, mBitmap.height, 9, (9 * (1 / aspectRatio)).roundToInt()), dim)
                     } else if (aspectRatio < 1) {
-                        BlurHash.encode(intArray, mBitmap.width, mBitmap.height, (9 * aspectRatio).roundToInt(), 9)
+                        Pair(BlurHash.encode(intArray, mBitmap.width, mBitmap.height, (9 * aspectRatio).roundToInt(), 9), dim)
                     } else {
-                        BlurHash.encode(intArray, mBitmap.width, mBitmap.height, 4, 4)
+                        Pair(BlurHash.encode(intArray, mBitmap.width, mBitmap.height, 4, 4), dim)
                     }
                 } else {
-                    null
+                    Pair(null, null)
                 }
 
-                onReady(FileHeader(fileUrl, mimeType, hash, size, blurHash, description))
+                onReady(FileHeader(fileUrl, mimeType, hash, size, dim, blurHash, description, sensitiveContent))
             } catch (e: Exception) {
                 Log.e("ImageDownload", "Couldn't convert image in to File Header: ${e.message}")
                 onError()

app/src/main/java/com/vitorpamplona/amethyst/service/HttpClient.kt

@@ -0,0 +1,44 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import okhttp3.OkHttpClient
+import java.net.InetSocketAddress
+import java.net.Proxy
+import java.time.Duration
+import kotlin.properties.Delegates
+
+object HttpClient {
+    var proxyChangeListeners = ArrayList<() -> Unit>()
+
+    // fires off every time value of the property changes
+    private var internalProxy: Proxy? by Delegates.observable(null) { _, oldValue, newValue ->
+        if (oldValue != newValue) {
+            proxyChangeListeners.forEach {
+                it()
+            }
+        }
+    }
+
+    fun start(account: Account?) {
+        this.internalProxy = account?.proxy
+    }
+
+    fun getHttpClient(): OkHttpClient {
+        val seconds = if (internalProxy != null) 20L else 10L
+        val duration = Duration.ofSeconds(seconds)
+        return OkHttpClient.Builder()
+            .proxy(internalProxy)
+            .readTimeout(duration)
+            .connectTimeout(duration)
+            .writeTimeout(duration)
+            .build()
+    }
+
+    fun getProxy(): Proxy? {
+        return internalProxy
+    }
+
+    fun initProxy(useProxy: Boolean, hostname: String, port: Int): Proxy? {
+        return if (useProxy) Proxy(Proxy.Type.SOCKS, InetSocketAddress(hostname, port)) else null
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/LocationUtil.kt

@@ -0,0 +1,79 @@
+package com.vitorpamplona.amethyst.service
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.location.Geocoder
+import android.location.Location
+import android.location.LocationListener
+import android.location.LocationManager
+import android.os.HandlerThread
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+import kotlinx.coroutines.flow.MutableStateFlow
+
+class LocationUtil(context: Context) {
+    companion object {
+        const val MIN_TIME: Long = 1000L
+        const val MIN_DISTANCE: Float = 0.0f
+    }
+
+    private val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
+    private var locationListener: LocationListener? = null
+
+    val locationStateFlow = MutableStateFlow<Location>(Location(LocationManager.NETWORK_PROVIDER))
+    val providerState = mutableStateOf(false)
+    val isStart: MutableState<Boolean> = mutableStateOf(false)
+
+    private val locHandlerThread = HandlerThread("LocationUtil Thread")
+
+    init {
+        locHandlerThread.start()
+    }
+
+    @SuppressLint("MissingPermission")
+    fun start(minTimeMs: Long = MIN_TIME, minDistanceM: Float = MIN_DISTANCE) {
+        locationListener().let {
+            locationListener = it
+            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, minTimeMs, minDistanceM, it, locHandlerThread.looper)
+        }
+        providerState.value = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
+        isStart.value = true
+    }
+
+    fun stop() {
+        locationListener?.let {
+            locationManager.removeUpdates(it)
+        }
+        isStart.value = false
+    }
+
+    private fun locationListener() = object : LocationListener {
+        override fun onLocationChanged(location: Location) {
+            locationStateFlow.value = location
+        }
+
+        override fun onProviderEnabled(provider: String) {
+            providerState.value = true
+        }
+
+        override fun onProviderDisabled(provider: String) {
+            providerState.value = false
+        }
+    }
+}
+
+class ReverseGeoLocationUtil {
+    suspend fun execute(
+        location: Location,
+        context: Context
+    ): String? {
+        return try {
+            Geocoder(context).getFromLocation(location.latitude, location.longitude, 1)?.firstOrNull()?.let { address ->
+                listOfNotNull(address.locality ?: address.subAdminArea, address.countryCode).joinToString(", ")
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return null
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/MainThreadChecker.kt

@@ -0,0 +1,12 @@
+package com.vitorpamplona.amethyst.service
+
+import android.os.Looper
+import com.vitorpamplona.amethyst.BuildConfig
+
+fun checkNotInMainThread() {
+    if (BuildConfig.DEBUG && isMainThread()) throw OnMainThreadException("It should not be in the MainThread")
+}
+
+fun isMainThread() = Looper.myLooper() == Looper.getMainLooper()
+
+class OnMainThreadException(str: String) : RuntimeException(str)

app/src/main/java/com/vitorpamplona/amethyst/service/NIP30Parser.kt

@@ -0,0 +1,34 @@
+package com.vitorpamplona.amethyst.service
+
+import androidx.compose.runtime.Immutable
+import java.util.regex.Pattern
+
+@Immutable
+class NIP30Parser {
+    val customEmojiPattern: Pattern = Pattern.compile("\\:([A-Za-z0-9_\\-]+)\\:", Pattern.CASE_INSENSITIVE)
+
+    fun buildArray(input: String): List<String> {
+        val matcher = customEmojiPattern.matcher(input)
+        val list = mutableListOf<String>()
+        while (matcher.find()) {
+            list.add(matcher.group())
+        }
+
+        if (list.isEmpty()) {
+            return listOf(input)
+        }
+
+        val regularChars = input.split(customEmojiPattern.toRegex())
+
+        val finalList = mutableListOf<String>()
+        var index = 0
+        for (e in regularChars) {
+            finalList.add(e)
+            if (index < list.size) {
+                finalList.add(list[index])
+            }
+            index++
+        }
+        return finalList
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/Nip05Verifier.kt

@@ -9,19 +9,19 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import okhttp3.Call
 import okhttp3.Callback
-import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
 
-class Nip05Verifier {
-    val client = OkHttpClient.Builder().build()
-
+class Nip05Verifier() {
     fun assembleUrl(nip05address: String): String? {
         val parts = nip05address.trim().split("@")
 
         if (parts.size == 2) {
             return "https://${parts[1]}/.well-known/nostr.json?name=${parts[0]}"
         }
+        if (parts.size == 1) {
+            return "https://${parts[0]}/.well-known/nostr.json?name=_"
+        }
 
         return null
     }
@@ -34,6 +34,8 @@ class Nip05Verifier {
     }
 
     private suspend fun fetchNip05JsonSuspend(nip05: String, onSuccess: (String) -> Unit, onError: (String) -> Unit) {
+        checkNotInMainThread()
+
         val url = assembleUrl(nip05)
 
         if (url == null) {
@@ -48,8 +50,10 @@ class Nip05Verifier {
                     .url(url)
                     .build()
 
-                client.newCall(request).enqueue(object : Callback {
+                HttpClient.getHttpClient().newCall(request).enqueue(object : Callback {
                     override fun onResponse(call: Call, response: Response) {
+                        checkNotInMainThread()
+
                         response.use {
                             if (it.isSuccessful) {
                                 onSuccess(it.body.string())
@@ -71,19 +75,32 @@ class Nip05Verifier {
     }
 
     fun verifyNip05(nip05: String, onSuccess: (String) -> Unit, onError: (String) -> Unit) {
+        // check fails on tests
+        checkNotInMainThread()
+
         val mapper = jacksonObjectMapper()
 
         fetchNip05Json(
             nip05,
             onSuccess = {
+                checkNotInMainThread()
+
+                // NIP05 usernames are case insensitive, but JSON properties are not
+                // converts the json to lowercase and then tries to access the username via a
+                // lowercase version of the username.
                 val nip05url = try {
-                    mapper.readTree(it)
+                    mapper.readTree(it.lowercase())
                 } catch (t: Throwable) {
                     onError("Error Parsing JSON from Lightning Address. Check the user's lightning setup")
                     null
                 }
 
-                val user = nip05.split("@")[0]
+                val parts = nip05.split("@")
+                val user = if (parts.size == 2) {
+                    parts[0].lowercase()
+                } else {
+                    "_"
+                }
 
                 val hexKey = nip05url?.get("names")?.get(user)?.asText()
 

app/src/main/java/com/vitorpamplona/amethyst/service/Nip47.kt

@@ -1,11 +1,9 @@
 package com.vitorpamplona.amethyst.ui.note
 
 import android.net.Uri
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.decodePublicKey
-import com.vitorpamplona.amethyst.model.toHexKey
-
-data class Nip47URI(val pubKeyHex: HexKey, val relayUri: String?, val secret: HexKey?)
+import com.vitorpamplona.amethyst.model.Nip47URI
+import com.vitorpamplona.quartz.encoders.decodePublicKey
+import com.vitorpamplona.quartz.encoders.toHexKey
 
 // Rename to the corect nip number when ready.
 object Nip47 {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrAccountDataSource.kt

@@ -1,24 +1,25 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.service.model.*
-import com.vitorpamplona.amethyst.service.model.BadgeAwardEvent
-import com.vitorpamplona.amethyst.service.model.BadgeProfilesEvent
-import com.vitorpamplona.amethyst.service.model.BookmarkListEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
-import com.vitorpamplona.amethyst.service.model.ContactListEvent
-import com.vitorpamplona.amethyst.service.model.LnZapEvent
-import com.vitorpamplona.amethyst.service.model.MetadataEvent
-import com.vitorpamplona.amethyst.service.model.ReactionEvent
-import com.vitorpamplona.amethyst.service.model.ReportEvent
-import com.vitorpamplona.amethyst.service.model.RepostEvent
-import com.vitorpamplona.amethyst.service.model.TextNoteEvent
+import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.service.relays.EOSEAccount
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.*
+import com.vitorpamplona.quartz.events.BadgeAwardEvent
+import com.vitorpamplona.quartz.events.BadgeProfilesEvent
+import com.vitorpamplona.quartz.events.BookmarkListEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ContactListEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.ReactionEvent
+import com.vitorpamplona.quartz.events.ReportEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
 
 object NostrAccountDataSource : NostrDataSource("AccountData") {
     lateinit var account: Account
@@ -47,13 +48,24 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
         )
     }
 
+    fun createAccountRelayListFilter(): TypedFilter {
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter = JsonFilter(
+                kinds = listOf(AdvertisedRelayListEvent.kind),
+                authors = listOf(account.userProfile().pubkeyHex),
+                limit = 1
+            )
+        )
+    }
+
     fun createAccountAcceptedAwardsFilter(): TypedFilter {
         return TypedFilter(
             types = COMMON_FEED_TYPES,
             filter = JsonFilter(
-                kinds = listOf(BadgeProfilesEvent.kind),
+                kinds = listOf(BadgeProfilesEvent.kind, EmojiPackSelectionEvent.kind),
                 authors = listOf(account.userProfile().pubkeyHex),
-                limit = 1
+                limit = 10
             )
         )
     }
@@ -62,9 +74,9 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
         return TypedFilter(
             types = COMMON_FEED_TYPES,
             filter = JsonFilter(
-                kinds = listOf(BookmarkListEvent.kind),
+                kinds = listOf(BookmarkListEvent.kind, PeopleListEvent.kind),
                 authors = listOf(account.userProfile().pubkeyHex),
-                limit = 1
+                limit = 100
             )
         )
     }
@@ -75,7 +87,17 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
             filter = JsonFilter(
                 kinds = listOf(ReportEvent.kind),
                 authors = listOf(account.userProfile().pubkeyHex),
-                since = latestEOSEs.users[account.userProfile()]?.relayList
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultNotificationFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createAccountLastPostsListFilter(): TypedFilter {
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter = JsonFilter(
+                authors = listOf(account.userProfile().pubkeyHex),
+                limit = 400
             )
         )
     }
@@ -88,6 +110,7 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
                 PollNoteEvent.kind,
                 ReactionEvent.kind,
                 RepostEvent.kind,
+                GenericRepostEvent.kind,
                 ReportEvent.kind,
                 LnZapEvent.kind,
                 LnZapPaymentResponseEvent.kind,
@@ -95,13 +118,47 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
                 BadgeAwardEvent.kind
             ),
             tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
-            limit = 400,
-            since = latestEOSEs.users[account.userProfile()]?.relayList
+            limit = 4000,
+            since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultNotificationFollowList)?.relayList
+        )
+    )
+
+    fun createGiftWrapsToMeFilter() = TypedFilter(
+        types = COMMON_FEED_TYPES,
+        filter = JsonFilter(
+            kinds = listOf(GiftWrapEvent.kind),
+            tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
         )
     )
 
     val accountChannel = requestNewChannel { time, relayUrl ->
-        latestEOSEs.addOrUpdate(account.userProfile(), relayUrl, time)
+        latestEOSEs.addOrUpdate(account.userProfile(), account.defaultNotificationFollowList, relayUrl, time)
+    }
+
+    override fun consume(event: Event, relay: Relay) {
+        if (LocalCache.justVerify(event)) {
+            if (event is GiftWrapEvent) {
+                val privateKey = account.keyPair.privKey
+                if (privateKey != null) {
+                    event.cachedGift(privateKey)?.let {
+                        this.consume(it, relay)
+                    }
+                }
+            }
+
+            if (event is SealedGossipEvent) {
+                val privateKey = account.keyPair.privKey
+                if (privateKey != null) {
+                    event.cachedGossip(privateKey)?.let {
+                        LocalCache.justConsume(it, relay)
+                    }
+                }
+
+                // Don't store sealed gossips to avoid rebroadcasting by mistake.
+            } else {
+                LocalCache.justConsume(event, relay)
+            }
+        }
     }
 
     override fun updateChannelFilters() {
@@ -109,10 +166,13 @@ object NostrAccountDataSource : NostrDataSource("AccountData") {
         accountChannel.typedFilters = listOf(
             createAccountMetadataFilter(),
             createAccountContactListFilter(),
+            createAccountRelayListFilter(),
             createNotificationFilter(),
+            createGiftWrapsToMeFilter(),
             createAccountReportsFilter(),
             createAccountAcceptedAwardsFilter(),
-            createAccountBookmarkListFilter()
+            createAccountBookmarkListFilter(),
+            createAccountLastPostsListFilter()
         ).ifEmpty { null }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChannelDataSource.kt

@@ -2,19 +2,21 @@ package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.Channel
-import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
+import com.vitorpamplona.amethyst.model.LiveActivitiesChannel
+import com.vitorpamplona.amethyst.model.PublicChatChannel
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
 
 object NostrChannelDataSource : NostrDataSource("ChatroomFeed") {
     var account: Account? = null
     var channel: Channel? = null
 
-    fun loadMessagesBetween(account: Account, channelId: String) {
+    fun loadMessagesBetween(account: Account, channel: Channel) {
         this.account = account
-        channel = LocalCache.getOrCreateChannel(channelId)
+        this.channel = channel
         resetFilters()
     }
 
@@ -26,7 +28,7 @@ object NostrChannelDataSource : NostrDataSource("ChatroomFeed") {
     fun createMessagesByMeToChannelFilter(): TypedFilter? {
         val myAccount = account ?: return null
 
-        if (channel != null) {
+        if (channel is PublicChatChannel) {
             // Brings on messages by the user from all other relays.
             // Since we ship with write to public, read from private only
             // this guarantees that messages from the author do not disappear.
@@ -38,12 +40,24 @@ object NostrChannelDataSource : NostrDataSource("ChatroomFeed") {
                     limit = 50
                 )
             )
+        } else if (channel is LiveActivitiesChannel) {
+            // Brings on messages by the user from all other relays.
+            // Since we ship with write to public, read from private only
+            // this guarantees that messages from the author do not disappear.
+            return TypedFilter(
+                types = setOf(FeedType.FOLLOWS, FeedType.PRIVATE_DMS, FeedType.GLOBAL, FeedType.SEARCH),
+                filter = JsonFilter(
+                    kinds = listOf(LiveActivitiesChatMessageEvent.kind),
+                    authors = listOf(myAccount.userProfile().pubkeyHex),
+                    limit = 50
+                )
+            )
         }
         return null
     }
 
     fun createMessagesToChannelFilter(): TypedFilter? {
-        if (channel != null) {
+        if (channel is PublicChatChannel) {
             return TypedFilter(
                 types = setOf(FeedType.PUBLIC_CHATS),
                 filter = JsonFilter(
@@ -52,6 +66,15 @@ object NostrChannelDataSource : NostrDataSource("ChatroomFeed") {
                     limit = 200
                 )
             )
+        } else if (channel is LiveActivitiesChannel) {
+            return TypedFilter(
+                types = setOf(FeedType.PUBLIC_CHATS),
+                filter = JsonFilter(
+                    kinds = listOf(LiveActivitiesChatMessageEvent.kind),
+                    tags = mapOf("a" to listOfNotNull(channel?.idHex)),
+                    limit = 200
+                )
+            )
         }
         return null
     }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChatroomDataSource.kt

@@ -1,33 +1,36 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.service.model.PrivateDmEvent
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.PrivateDmEvent
 
 object NostrChatroomDataSource : NostrDataSource("ChatroomFeed") {
     lateinit var account: Account
-    var withUser: User? = null
+    private var withRoom: ChatroomKey? = null
 
-    fun loadMessagesBetween(accountIn: Account, userId: String) {
-        account = accountIn
-        withUser = LocalCache.users[userId]
+    private val latestEOSEs = EOSEAccount()
+
+    fun loadMessagesBetween(accountIn: Account, withRoom: ChatroomKey) {
+        this.account = accountIn
+        this.withRoom = withRoom
         resetFilters()
     }
 
     fun createMessagesToMeFilter(): TypedFilter? {
-        val myPeer = withUser
+        val myPeer = withRoom
 
         return if (myPeer != null) {
             TypedFilter(
                 types = setOf(FeedType.PRIVATE_DMS),
                 filter = JsonFilter(
                     kinds = listOf(PrivateDmEvent.kind),
-                    authors = listOf(myPeer.pubkeyHex),
-                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
+                    authors = myPeer.users.map { it },
+                    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+                    since = latestEOSEs.users[account.userProfile()]?.followList?.get(withRoom.hashCode().toString())?.relayList
                 )
             )
         } else {
@@ -36,7 +39,7 @@ object NostrChatroomDataSource : NostrDataSource("ChatroomFeed") {
     }
 
     fun createMessagesFromMeFilter(): TypedFilter? {
-        val myPeer = withUser
+        val myPeer = withRoom
 
         return if (myPeer != null) {
             TypedFilter(
@@ -44,7 +47,8 @@ object NostrChatroomDataSource : NostrDataSource("ChatroomFeed") {
                 filter = JsonFilter(
                     kinds = listOf(PrivateDmEvent.kind),
                     authors = listOf(account.userProfile().pubkeyHex),
-                    tags = mapOf("p" to listOf(myPeer.pubkeyHex))
+                    tags = mapOf("p" to myPeer.users.map { it }),
+                    since = latestEOSEs.users[account.userProfile()]?.followList?.get(withRoom.hashCode().toString())?.relayList
                 )
             )
         } else {
@@ -52,9 +56,14 @@ object NostrChatroomDataSource : NostrDataSource("ChatroomFeed") {
         }
     }
 
-    val inandoutChannel = requestNewChannel()
+    val inandoutChannel = requestNewChannel { time, relayUrl ->
+        latestEOSEs.addOrUpdate(account.userProfile(), withRoom.hashCode().toString(), relayUrl, time)
+    }
 
     override fun updateChannelFilters() {
-        inandoutChannel.typedFilters = listOfNotNull(createMessagesToMeFilter(), createMessagesFromMeFilter()).ifEmpty { null }
+        inandoutChannel.typedFilters = listOfNotNull(
+            createMessagesToMeFilter(),
+            createMessagesFromMeFilter()
+        ).ifEmpty { null }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChatroomListDataSource.kt

@@ -1,27 +1,28 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
-import com.vitorpamplona.amethyst.service.model.PrivateDmEvent
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.EOSEAccount
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+import com.vitorpamplona.quartz.events.PrivateDmEvent
 
 object NostrChatroomListDataSource : NostrDataSource("MailBoxFeed") {
     lateinit var account: Account
 
     val latestEOSEs = EOSEAccount()
+    val chatRoomList = "ChatroomList"
 
     fun createMessagesToMeFilter() = TypedFilter(
         types = setOf(FeedType.PRIVATE_DMS),
         filter = JsonFilter(
             kinds = listOf(PrivateDmEvent.kind),
             tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
-            since = latestEOSEs.users[account.userProfile()]?.relayList
+            since = latestEOSEs.users[account.userProfile()]?.followList?.get(chatRoomList)?.relayList
         )
     )
 
@@ -30,7 +31,7 @@ object NostrChatroomListDataSource : NostrDataSource("MailBoxFeed") {
         filter = JsonFilter(
             kinds = listOf(PrivateDmEvent.kind),
             authors = listOf(account.userProfile().pubkeyHex),
-            since = latestEOSEs.users[account.userProfile()]?.relayList
+            since = latestEOSEs.users[account.userProfile()]?.followList?.get(chatRoomList)?.relayList
         )
     )
 
@@ -39,21 +40,27 @@ object NostrChatroomListDataSource : NostrDataSource("MailBoxFeed") {
         filter = JsonFilter(
             kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind),
             authors = listOf(account.userProfile().pubkeyHex),
-            since = latestEOSEs.users[account.userProfile()]?.relayList
+            since = latestEOSEs.users[account.userProfile()]?.followList?.get(chatRoomList)?.relayList
         )
     )
 
-    fun createMyChannelsFilter() = TypedFilter(
-        types = COMMON_FEED_TYPES, // Metadata comes from any relay
-        filter = JsonFilter(
-            kinds = listOf(ChannelCreateEvent.kind),
-            ids = account.followingChannels.toList(),
-            since = latestEOSEs.users[account.userProfile()]?.relayList
-        )
-    )
+    fun createMyChannelsFilter(): TypedFilter {
+        val followingEvents = account.selectedChatsFollowList()
 
-    fun createLastChannelInfoFilter(): List<TypedFilter> {
-        return account.followingChannels.map {
+        return TypedFilter(
+            types = COMMON_FEED_TYPES, // Metadata comes from any relay
+            filter = JsonFilter(
+                kinds = listOf(ChannelCreateEvent.kind),
+                ids = followingEvents.toList(),
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(chatRoomList)?.relayList
+            )
+        )
+    }
+
+    fun createLastChannelInfoFilter(): List<TypedFilter>? {
+        val followingEvents = account.selectedChatsFollowList()
+
+        return followingEvents.map {
             TypedFilter(
                 types = COMMON_FEED_TYPES, // Metadata comes from any relay
                 filter = JsonFilter(
@@ -65,22 +72,24 @@ object NostrChatroomListDataSource : NostrDataSource("MailBoxFeed") {
         }
     }
 
-    fun createLastMessageOfEachChannelFilter(): List<TypedFilter> {
-        return account.followingChannels.map {
+    fun createLastMessageOfEachChannelFilter(): List<TypedFilter>? {
+        val followingEvents = account.selectedChatsFollowList()
+
+        return followingEvents.map {
             TypedFilter(
                 types = setOf(FeedType.PUBLIC_CHATS),
                 filter = JsonFilter(
                     kinds = listOf(ChannelMessageEvent.kind),
                     tags = mapOf("e" to listOf(it)),
-                    since = latestEOSEs.users[account.userProfile()]?.relayList,
-                    limit = 25 // Remember to consider spam that is being removed from the UI
+                    since = latestEOSEs.users[account.userProfile()]?.followList?.get(chatRoomList)?.relayList,
+                    limit = 50 // Remember to consider spam that is being removed from the UI
                 )
             )
         }
     }
 
     val chatroomListChannel = requestNewChannel { time, relayUrl ->
-        latestEOSEs.addOrUpdate(account.userProfile(), relayUrl, time)
+        latestEOSEs.addOrUpdate(account.userProfile(), chatRoomList, relayUrl, time)
     }
 
     override fun updateChannelFilters() {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrCommunityDataSource.kt

@@ -0,0 +1,41 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.AddressableNote
+import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.amethyst.service.relays.JsonFilter
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+
+object NostrCommunityDataSource : NostrDataSource("SingleCommunityFeed") {
+    private var communityToWatch: AddressableNote? = null
+
+    private fun createLoadCommunityFilter(): TypedFilter? {
+        val myCommunityToWatch = communityToWatch ?: return null
+
+        val community = myCommunityToWatch.event as? CommunityDefinitionEvent ?: return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter = JsonFilter(
+                authors = community.moderators().map { it.key }.plus(listOfNotNull(myCommunityToWatch.author?.pubkeyHex)),
+                tags = mapOf(
+                    "a" to listOf(myCommunityToWatch.address.toTag())
+                ),
+                kinds = listOf(CommunityPostApprovalEvent.kind),
+                limit = 500
+            )
+        )
+    }
+
+    val loadCommunityChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        loadCommunityChannel.typedFilters = listOfNotNull(createLoadCommunityFilter()).ifEmpty { null }
+    }
+
+    fun loadCommunity(note: AddressableNote?) {
+        communityToWatch = note
+        invalidateFilters()
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/NostrDataSource.kt

@@ -2,38 +2,16 @@ package com.vitorpamplona.amethyst.service
 
 import android.util.Log
 import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.service.model.*
-import com.vitorpamplona.amethyst.service.model.BadgeAwardEvent
-import com.vitorpamplona.amethyst.service.model.BadgeDefinitionEvent
-import com.vitorpamplona.amethyst.service.model.BadgeProfilesEvent
-import com.vitorpamplona.amethyst.service.model.BookmarkListEvent
-import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
-import com.vitorpamplona.amethyst.service.model.ChannelHideMessageEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMuteUserEvent
-import com.vitorpamplona.amethyst.service.model.ContactListEvent
-import com.vitorpamplona.amethyst.service.model.DeletionEvent
-import com.vitorpamplona.amethyst.service.model.Event
-import com.vitorpamplona.amethyst.service.model.LnZapEvent
-import com.vitorpamplona.amethyst.service.model.LnZapRequestEvent
-import com.vitorpamplona.amethyst.service.model.LongTextNoteEvent
-import com.vitorpamplona.amethyst.service.model.MetadataEvent
-import com.vitorpamplona.amethyst.service.model.PrivateDmEvent
-import com.vitorpamplona.amethyst.service.model.ReactionEvent
-import com.vitorpamplona.amethyst.service.model.RecommendRelayEvent
-import com.vitorpamplona.amethyst.service.model.ReportEvent
-import com.vitorpamplona.amethyst.service.model.RepostEvent
-import com.vitorpamplona.amethyst.service.model.TextNoteEvent
 import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.service.relays.Subscription
 import com.vitorpamplona.amethyst.ui.components.BundledUpdate
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.utils.TimeUtils
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import java.util.Date
 import java.util.UUID
 import kotlin.Error
 
@@ -52,8 +30,6 @@ abstract class NostrDataSource(val debugName: String) {
     private val clientListener = object : Client.Listener() {
         override fun onEvent(event: Event, subscriptionId: String, relay: Relay) {
             if (subscriptionId in subscriptions.keys) {
-                if (!event.hasValidSignature()) return
-
                 val key = "$debugName $subscriptionId ${event.kind}"
                 val keyValue = eventCounter.get(key)
                 if (keyValue != null) {
@@ -62,49 +38,7 @@ abstract class NostrDataSource(val debugName: String) {
                     eventCounter = eventCounter + Pair(key, Counter(1))
                 }
 
-                try {
-                    when (event) {
-                        is BadgeAwardEvent -> LocalCache.consume(event)
-                        is BadgeDefinitionEvent -> LocalCache.consume(event)
-                        is BadgeProfilesEvent -> LocalCache.consume(event)
-                        is BookmarkListEvent -> LocalCache.consume(event)
-                        is ChannelCreateEvent -> LocalCache.consume(event)
-                        is ChannelHideMessageEvent -> LocalCache.consume(event)
-                        is ChannelMessageEvent -> LocalCache.consume(event, relay)
-                        is ChannelMetadataEvent -> LocalCache.consume(event)
-                        is ChannelMuteUserEvent -> LocalCache.consume(event)
-                        is ContactListEvent -> LocalCache.consume(event)
-                        is DeletionEvent -> LocalCache.consume(event)
-
-                        is FileHeaderEvent -> LocalCache.consume(event)
-                        is FileStorageEvent -> LocalCache.consume(event)
-                        is FileStorageHeaderEvent -> LocalCache.consume(event)
-                        is LnZapEvent -> {
-                            event.zapRequest?.let { onEvent(it, subscriptionId, relay) }
-                            LocalCache.consume(event)
-                        }
-                        is LnZapRequestEvent -> LocalCache.consume(event)
-                        is LnZapPaymentRequestEvent -> LocalCache.consume(event)
-                        is LnZapPaymentResponseEvent -> LocalCache.consume(event)
-                        is LongTextNoteEvent -> LocalCache.consume(event, relay)
-                        is MetadataEvent -> LocalCache.consume(event)
-                        is PrivateDmEvent -> LocalCache.consume(event, relay)
-                        is ReactionEvent -> LocalCache.consume(event)
-                        is RecommendRelayEvent -> LocalCache.consume(event)
-                        is ReportEvent -> LocalCache.consume(event, relay)
-                        is RepostEvent -> {
-                            event.containedPost()?.let { onEvent(it, subscriptionId, relay) }
-                            LocalCache.consume(event)
-                        }
-                        is TextNoteEvent -> LocalCache.consume(event, relay)
-                        is PollNoteEvent -> LocalCache.consume(event, relay)
-                        else -> {
-                            Log.w("Event Not Supported", event.toJson())
-                        }
-                    }
-                } catch (e: Exception) {
-                    e.printStackTrace()
-                }
+                consume(event, relay)
             }
         }
 
@@ -122,7 +56,7 @@ abstract class NostrDataSource(val debugName: String) {
 
             if (type == Relay.Type.EOSE && channel != null) {
                 // updates a per subscripton since date
-                subscriptions[channel]?.updateEOSE(Date().time / 1000, relay.url)
+                subscriptions[channel]?.updateEOSE(TimeUtils.now(), relay.url)
             }
         }
 
@@ -135,6 +69,7 @@ abstract class NostrDataSource(val debugName: String) {
     }
 
     init {
+        Log.d("Init", "${this.javaClass.simpleName} Subscribe")
         Client.subscribe(clientListener)
     }
 
@@ -168,16 +103,16 @@ abstract class NostrDataSource(val debugName: String) {
     }
 
     // Refreshes observers in batches.
-    private val bundler = BundledUpdate(250, Dispatchers.IO) {
-        // println("DataSource: ${this.javaClass.simpleName} InvalidateFilters")
-
-        // adds the time to perform the refresh into this delay
-        // holding off new updates in case of heavy refresh routines.
-        resetFiltersSuspend()
-    }
+    private val bundler = BundledUpdate(300, Dispatchers.IO)
 
     fun invalidateFilters() {
-        bundler.invalidate()
+        bundler.invalidate() {
+            // println("DataSource: ${this.javaClass.simpleName} InvalidateFilters")
+
+            // adds the time to perform the refresh into this delay
+            // holding off new updates in case of heavy refresh routines.
+            resetFiltersSuspend()
+        }
     }
 
     fun resetFilters() {
@@ -188,6 +123,8 @@ abstract class NostrDataSource(val debugName: String) {
     }
 
     fun resetFiltersSuspend() {
+        checkNotInMainThread()
+
         // saves the channels that are currently active
         val activeSubscriptions = subscriptions.values.filter { it.typedFilters != null }
         // saves the current content to only update if it changes
@@ -226,6 +163,10 @@ abstract class NostrDataSource(val debugName: String) {
         }
     }
 
+    open fun consume(event: Event, relay: Relay) {
+        LocalCache.verifyAndConsume(event, relay)
+    }
+
     abstract fun updateChannelFilters()
     open fun auth(relay: Relay, challenge: String) = Unit
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrDiscoveryDataSource.kt

@@ -0,0 +1,212 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.JsonFilter
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
+import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+
+object NostrDiscoveryDataSource : NostrDataSource("DiscoveryFeed") {
+    lateinit var account: Account
+
+    val latestEOSEs = EOSEAccount()
+
+    fun createLiveStreamFilter(): TypedFilter {
+        val follows = account.selectedUsersFollowList(account.defaultDiscoveryFollowList)
+
+        val followKeys = follows?.map {
+            it.substring(0, 8)
+        }
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                authors = followKeys,
+                kinds = listOf(LiveActivitiesChatMessageEvent.kind, LiveActivitiesEvent.kind),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createPublicChatFilter(): TypedFilter {
+        val follows = account.selectedUsersFollowList(account.defaultDiscoveryFollowList)
+
+        val followKeys = follows?.map {
+            it.substring(0, 8)
+        }
+
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter = JsonFilter(
+                authors = followKeys,
+                kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind, ChannelMessageEvent.kind),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createCommunitiesFilter(): TypedFilter {
+        val follows = account.selectedUsersFollowList(account.defaultDiscoveryFollowList)
+
+        val followKeys = follows?.map {
+            it.substring(0, 8)
+        }
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                authors = followKeys,
+                kinds = listOf(CommunityDefinitionEvent.kind, CommunityPostApprovalEvent.kind),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createLiveStreamTagsFilter(): TypedFilter? {
+        val hashToLoad = account.selectedTagsFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(LiveActivitiesChatMessageEvent.kind, LiveActivitiesEvent.kind),
+                tags = mapOf(
+                    "t" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createLiveStreamGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.selectedGeohashesFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(LiveActivitiesChatMessageEvent.kind, LiveActivitiesEvent.kind),
+                tags = mapOf(
+                    "g" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createPublicChatsTagsFilter(): TypedFilter? {
+        val hashToLoad = account.selectedTagsFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter = JsonFilter(
+                kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind, ChannelMessageEvent.kind),
+                tags = mapOf(
+                    "t" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createPublicChatsGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.selectedGeohashesFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.PUBLIC_CHATS),
+            filter = JsonFilter(
+                kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind, ChannelMessageEvent.kind),
+                tags = mapOf(
+                    "g" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createCommunitiesTagsFilter(): TypedFilter? {
+        val hashToLoad = account.selectedTagsFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(CommunityDefinitionEvent.kind, CommunityPostApprovalEvent.kind),
+                tags = mapOf(
+                    "t" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createCommunitiesGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.selectedGeohashesFollowList(account.defaultDiscoveryFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(CommunityDefinitionEvent.kind, CommunityPostApprovalEvent.kind),
+                tags = mapOf(
+                    "g" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 300,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultDiscoveryFollowList)?.relayList
+            )
+        )
+    }
+
+    val discoveryFeedChannel = requestNewChannel() { time, relayUrl ->
+        latestEOSEs.addOrUpdate(account.userProfile(), account.defaultDiscoveryFollowList, relayUrl, time)
+    }
+
+    override fun updateChannelFilters() {
+        discoveryFeedChannel.typedFilters = listOfNotNull(
+            createLiveStreamFilter(),
+            createPublicChatFilter(),
+            createCommunitiesFilter(),
+            createLiveStreamTagsFilter(),
+            createPublicChatsTagsFilter(),
+            createCommunitiesTagsFilter(),
+            createCommunitiesGeohashesFilter(),
+            createPublicChatsGeohashesFilter(),
+            createLiveStreamGeohashesFilter()
+        ).ifEmpty { null }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/NostrGeohashDataSource.kt

@@ -0,0 +1,47 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.amethyst.service.relays.JsonFilter
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
+
+object NostrGeohashDataSource : NostrDataSource("SingleGeoHashFeed") {
+    private var geohashToWatch: String? = null
+
+    fun createLoadHashtagFilter(): TypedFilter? {
+        val hashToLoad = geohashToWatch ?: return null
+
+        return TypedFilter(
+            types = COMMON_FEED_TYPES,
+            filter = JsonFilter(
+                tags = mapOf(
+                    "g" to listOf(
+                        hashToLoad
+                    )
+                ),
+                kinds = listOf(TextNoteEvent.kind, ChannelMessageEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind, LiveActivitiesChatMessageEvent.kind, ClassifiedsEvent.kind, HighlightEvent.kind, AudioTrackEvent.kind, AudioHeaderEvent.kind),
+                limit = 200
+            )
+        )
+    }
+
+    val loadGeohashChannel = requestNewChannel()
+
+    override fun updateChannelFilters() {
+        loadGeohashChannel.typedFilters = listOfNotNull(createLoadHashtagFilter()).ifEmpty { null }
+    }
+
+    fun loadHashtag(tag: String?) {
+        geohashToWatch = tag
+
+        invalidateFilters()
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/NostrGlobalDataSource.kt

@@ -1,25 +0,0 @@
-package com.vitorpamplona.amethyst.service
-
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
-import com.vitorpamplona.amethyst.service.model.LongTextNoteEvent
-import com.vitorpamplona.amethyst.service.model.PollNoteEvent
-import com.vitorpamplona.amethyst.service.model.TextNoteEvent
-import com.vitorpamplona.amethyst.service.relays.FeedType
-import com.vitorpamplona.amethyst.service.relays.JsonFilter
-import com.vitorpamplona.amethyst.service.relays.TypedFilter
-
-object NostrGlobalDataSource : NostrDataSource("GlobalFeed") {
-    fun createGlobalFilter() = TypedFilter(
-        types = setOf(FeedType.GLOBAL),
-        filter = JsonFilter(
-            kinds = listOf(TextNoteEvent.kind, PollNoteEvent.kind, ChannelMessageEvent.kind, LongTextNoteEvent.kind),
-            limit = 200
-        )
-    )
-
-    val globalFeedChannel = requestNewChannel()
-
-    override fun updateChannelFilters() {
-        globalFeedChannel.typedFilters = listOf(createGlobalFilter()).ifEmpty { null }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/NostrHashtagDataSource.kt

@@ -1,12 +1,17 @@
 package com.vitorpamplona.amethyst.service
 
-import androidx.compose.ui.text.capitalize
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
-import com.vitorpamplona.amethyst.service.model.LongTextNoteEvent
-import com.vitorpamplona.amethyst.service.model.TextNoteEvent
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ChannelMessageEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
 
 object NostrHashtagDataSource : NostrDataSource("SingleHashtagFeed") {
     private var hashtagToWatch: String? = null
@@ -25,7 +30,7 @@ object NostrHashtagDataSource : NostrDataSource("SingleHashtagFeed") {
                         hashToLoad.capitalize()
                     )
                 ),
-                kinds = listOf(TextNoteEvent.kind, ChannelMessageEvent.kind, LongTextNoteEvent.kind),
+                kinds = listOf(TextNoteEvent.kind, ChannelMessageEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind, LiveActivitiesChatMessageEvent.kind, ClassifiedsEvent.kind, HighlightEvent.kind, AudioTrackEvent.kind, AudioHeaderEvent.kind),
                 limit = 200
             )
         )

app/src/main/java/com/vitorpamplona/amethyst/service/NostrHomeDataSource.kt

@@ -2,13 +2,23 @@ package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.UserState
-import com.vitorpamplona.amethyst.service.model.LongTextNoteEvent
-import com.vitorpamplona.amethyst.service.model.PollNoteEvent
-import com.vitorpamplona.amethyst.service.model.TextNoteEvent
 import com.vitorpamplona.amethyst.service.relays.EOSEAccount
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.AudioHeaderEvent
+import com.vitorpamplona.quartz.events.AudioTrackEvent
+import com.vitorpamplona.quartz.events.ClassifiedsEvent
+import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
+import com.vitorpamplona.quartz.events.GenericRepostEvent
+import com.vitorpamplona.quartz.events.HighlightEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesChatMessageEvent
+import com.vitorpamplona.quartz.events.LiveActivitiesEvent
+import com.vitorpamplona.quartz.events.LongTextNoteEvent
+import com.vitorpamplona.quartz.events.PinListEvent
+import com.vitorpamplona.quartz.events.PollNoteEvent
+import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteEvent
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -44,50 +54,115 @@ object NostrHomeDataSource : NostrDataSource("HomeFeed") {
     }
 
     fun createFollowAccountsFilter(): TypedFilter {
-        val follows = account.followingKeySet()
+        val follows = account.selectedUsersFollowList(account.defaultHomeFollowList)
 
-        val followKeys = follows.map {
-            it.substring(0, 6)
+        val followKeys = follows?.map {
+            it.substring(0, 8)
         }
 
-        val followSet = followKeys.plus(account.userProfile().pubkeyHex.substring(0, 6))
+        val followSet = followKeys?.plus(account.userProfile().pubkeyHex.substring(0, 8))
 
         return TypedFilter(
             types = setOf(FeedType.FOLLOWS),
             filter = JsonFilter(
-                kinds = listOf(TextNoteEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind),
+                kinds = listOf(
+                    TextNoteEvent.kind,
+                    RepostEvent.kind,
+                    GenericRepostEvent.kind,
+                    ClassifiedsEvent.kind,
+                    LongTextNoteEvent.kind,
+                    PollNoteEvent.kind,
+                    HighlightEvent.kind,
+                    AudioTrackEvent.kind,
+                    AudioHeaderEvent.kind,
+                    PinListEvent.kind,
+                    LiveActivitiesChatMessageEvent.kind,
+                    LiveActivitiesEvent.kind
+                ),
                 authors = followSet,
                 limit = 400,
-                since = latestEOSEs.users[account.userProfile()]?.relayList
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultHomeFollowList)?.relayList
             )
         )
     }
 
     fun createFollowTagsFilter(): TypedFilter? {
-        val hashToLoad = account.followingTagSet()
+        val hashToLoad = account.selectedTagsFollowList(account.defaultHomeFollowList) ?: emptySet()
 
         if (hashToLoad.isEmpty()) return null
 
         return TypedFilter(
             types = setOf(FeedType.FOLLOWS),
             filter = JsonFilter(
-                kinds = listOf(TextNoteEvent.kind, LongTextNoteEvent.kind),
+                kinds = listOf(TextNoteEvent.kind, LongTextNoteEvent.kind, ClassifiedsEvent.kind, HighlightEvent.kind, AudioHeaderEvent.kind, AudioTrackEvent.kind, PinListEvent.kind),
                 tags = mapOf(
                     "t" to hashToLoad.map {
                         listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
                     }.flatten()
                 ),
                 limit = 100,
-                since = latestEOSEs.users[account.userProfile()]?.relayList
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultHomeFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createFollowGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.selectedGeohashesFollowList(account.defaultHomeFollowList) ?: emptySet()
+
+        if (hashToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.FOLLOWS),
+            filter = JsonFilter(
+                kinds = listOf(TextNoteEvent.kind, LongTextNoteEvent.kind, ClassifiedsEvent.kind, HighlightEvent.kind, AudioHeaderEvent.kind, AudioTrackEvent.kind, PinListEvent.kind),
+                tags = mapOf(
+                    "g" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 100,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultHomeFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createFollowCommunitiesFilter(): TypedFilter? {
+        val communitiesToLoad = account.selectedCommunitiesFollowList(account.defaultHomeFollowList) ?: emptySet()
+
+        if (communitiesToLoad.isEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.FOLLOWS),
+            filter = JsonFilter(
+                kinds = listOf(
+                    TextNoteEvent.kind,
+                    LongTextNoteEvent.kind,
+                    ClassifiedsEvent.kind,
+                    HighlightEvent.kind,
+                    AudioHeaderEvent.kind,
+                    AudioTrackEvent.kind,
+                    PinListEvent.kind,
+                    CommunityPostApprovalEvent.kind
+                ),
+                tags = mapOf(
+                    "a" to communitiesToLoad.toList()
+                ),
+                limit = 100,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultHomeFollowList)?.relayList
             )
         )
     }
 
     val followAccountChannel = requestNewChannel { time, relayUrl ->
-        latestEOSEs.addOrUpdate(account.userProfile(), relayUrl, time)
+        latestEOSEs.addOrUpdate(account.userProfile(), account.defaultHomeFollowList, relayUrl, time)
     }
 
     override fun updateChannelFilters() {
-        followAccountChannel.typedFilters = listOfNotNull(createFollowAccountsFilter(), createFollowTagsFilter()).ifEmpty { null }
+        followAccountChannel.typedFilters = listOfNotNull(
+            createFollowAccountsFilter(),
+            createFollowCommunitiesFilter(),
+            createFollowTagsFilter(),
+            createFollowGeohashesFilter()
+        ).ifEmpty { null }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrLnZapPaymentResponseDataSource.kt

@@ -1,14 +1,18 @@
 package com.vitorpamplona.amethyst.service
 
-import com.vitorpamplona.amethyst.service.model.LnZapPaymentResponseEvent
+import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
+import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.LnZapPaymentResponseEvent
+import com.vitorpamplona.quartz.events.RelayAuthEvent
 
 class NostrLnZapPaymentResponseDataSource(
-    private var fromServiceHex: String,
-    private var toUserHex: String,
-    private var replyingToHex: String
+    private val fromServiceHex: String,
+    private val toUserHex: String,
+    private val replyingToHex: String,
+    private val authSigningKey: ByteArray
 ) : NostrDataSource("LnZapPaymentResponseFeed") {
 
     val feedTypes = setOf(FeedType.WALLET_CONNECT)
@@ -36,4 +40,14 @@ class NostrLnZapPaymentResponseDataSource(
 
         channel.typedFilters = listOfNotNull(wc).ifEmpty { null }
     }
+
+    override fun auth(relay: Relay, challenge: String) {
+        super.auth(relay, challenge)
+
+        val event = RelayAuthEvent.create(relay.url, challenge, authSigningKey)
+        Client.send(
+            event,
+            relay.url
+        )
+    }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSearchEventOrUserDataSource.kt

@@ -1,14 +1,15 @@
 package com.vitorpamplona.amethyst.service
 
-import com.vitorpamplona.amethyst.model.decodePublicKey
-import com.vitorpamplona.amethyst.service.model.*
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
+import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
-import nostr.postr.bechToBytes
-import nostr.postr.toHex
+import com.vitorpamplona.quartz.encoders.Hex
+import com.vitorpamplona.quartz.encoders.Nip19
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.*
 
-object NostrSearchEventOrUserDataSource : NostrDataSource("SingleEventFeed") {
+object NostrSearchEventOrUserDataSource : NostrDataSource("SearchEventFeed") {
     private var searchString: String? = null
 
     private fun createAnythingWithIDFilter(): List<TypedFilter>? {
@@ -18,15 +19,8 @@ object NostrSearchEventOrUserDataSource : NostrDataSource("SingleEventFeed") {
         }
 
         val hexToWatch = try {
-            if (mySearchString.startsWith("npub") || mySearchString.startsWith("nsec")) {
-                decodePublicKey(mySearchString).toHex()
-            } else if (mySearchString.startsWith("note")) {
-                mySearchString.bechToBytes().toHex()
-            } else {
-                mySearchString
-            }
+            Nip19.uriToRoute(mySearchString)?.hex ?: Hex.decode(mySearchString).toHexKey()
         } catch (e: Exception) {
-            // Usually when people add an incomplete npub or note.
             null
         }
 
@@ -50,19 +44,41 @@ object NostrSearchEventOrUserDataSource : NostrDataSource("SingleEventFeed") {
                 )
             },
             TypedFilter(
-                types = COMMON_FEED_TYPES,
+                types = setOf(FeedType.SEARCH),
                 filter = JsonFilter(
                     kinds = listOf(MetadataEvent.kind),
                     search = mySearchString,
-                    limit = 20
+                    limit = 100
                 )
             ),
             TypedFilter(
-                types = COMMON_FEED_TYPES,
+                types = setOf(FeedType.SEARCH),
                 filter = JsonFilter(
-                    kinds = listOf(TextNoteEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind, ChannelMetadataEvent.kind, ChannelCreateEvent.kind, ChannelMessageEvent.kind),
+                    kinds = listOf(
+                        TextNoteEvent.kind, LongTextNoteEvent.kind, BadgeDefinitionEvent.kind,
+                        PeopleListEvent.kind, BookmarkListEvent.kind, AudioHeaderEvent.kind,
+                        AudioTrackEvent.kind, PinListEvent.kind, PollNoteEvent.kind,
+                        ChannelCreateEvent.kind
+                    ),
                     search = mySearchString,
-                    limit = 20
+                    limit = 100
+                )
+            ),
+            TypedFilter(
+                types = setOf(FeedType.SEARCH),
+                filter = JsonFilter(
+                    kinds = listOf(
+                        ChannelMetadataEvent.kind,
+                        ClassifiedsEvent.kind,
+                        CommunityDefinitionEvent.kind,
+                        EmojiPackEvent.kind,
+                        HighlightEvent.kind,
+                        LiveActivitiesEvent.kind,
+                        PollNoteEvent.kind,
+                        NNSEvent.kind
+                    ),
+                    search = mySearchString,
+                    limit = 100
                 )
             )
         )

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleChannelDataSource.kt

@@ -1,12 +1,14 @@
 package com.vitorpamplona.amethyst.service
 
+import com.vitorpamplona.amethyst.model.LiveActivitiesChannel
 import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
+import com.vitorpamplona.amethyst.model.PublicChatChannel
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.ChannelCreateEvent
+import com.vitorpamplona.quartz.events.ChannelMetadataEvent
 
 object NostrSingleChannelDataSource : NostrDataSource("SingleChannelFeed") {
     private var channelsToWatch = setOf<String>()
@@ -30,8 +32,8 @@ object NostrSingleChannelDataSource : NostrDataSource("SingleChannelFeed") {
 
     fun createLoadEventsIfNotLoadedFilter(): TypedFilter? {
         val directEventsToLoad = channelsToWatch
-            .map { LocalCache.getOrCreateChannel(it) }
-            .filter { it.notes.isEmpty() }
+            .mapNotNull { LocalCache.checkGetOrCreateChannel(it) }
+            .filter { it.notes.isEmpty() && it is PublicChatChannel }
 
         val interestedEvents = (directEventsToLoad).map { it.idHex }.toSet()
 
@@ -49,13 +51,43 @@ object NostrSingleChannelDataSource : NostrDataSource("SingleChannelFeed") {
         )
     }
 
+    fun createLoadStreamingIfNotLoadedFilter(): List<TypedFilter>? {
+        val directEventsToLoad = channelsToWatch
+            .mapNotNull { LocalCache.checkGetOrCreateChannel(it) }
+            .filterIsInstance<LiveActivitiesChannel>()
+            .filter { it.info == null }
+
+        val interestedEvents = (directEventsToLoad).map { it.idHex }.toSet()
+
+        if (interestedEvents.isEmpty()) {
+            return null
+        }
+
+        // downloads linked events to this event.
+        return directEventsToLoad.map {
+            it.address().let { aTag ->
+                TypedFilter(
+                    types = COMMON_FEED_TYPES,
+                    filter = JsonFilter(
+                        kinds = listOf(aTag.kind),
+                        tags = mapOf("d" to listOf(aTag.dTag)),
+                        authors = listOf(aTag.pubKeyHex)
+                    )
+                )
+            }
+        }
+    }
+
     val singleChannelChannel = requestNewChannel()
 
     override fun updateChannelFilters() {
         val reactions = createRepliesAndReactionsFilter()
         val missing = createLoadEventsIfNotLoadedFilter()
+        val missingStreaming = createLoadStreamingIfNotLoadedFilter()
 
-        singleChannelChannel.typedFilters = listOfNotNull(reactions, missing).ifEmpty { null }
+        singleChannelChannel.typedFilters = (
+            (listOfNotNull(reactions, missing)) + (missingStreaming ?: emptyList())
+            ).ifEmpty { null }
     }
 
     fun add(eventId: String) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleEventDataSource.kt

@@ -2,17 +2,17 @@ package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.AddressableNote
 import com.vitorpamplona.amethyst.model.Note
-import com.vitorpamplona.amethyst.service.model.*
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.EOSETime
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.*
 
 object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
     private var eventsToWatch = setOf<Note>()
     private var addressesToWatch = setOf<Note>()
 
-    private fun createTagToAddressFilter(): List<TypedFilter>? {
+    private fun createReactionsToWatchInAddressFilter(): List<TypedFilter>? {
         val addressesToWatch = eventsToWatch.filter { it.address() != null } + addressesToWatch
 
         if (addressesToWatch.isEmpty()) {
@@ -25,14 +25,19 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
                     types = COMMON_FEED_TYPES,
                     filter = JsonFilter(
                         kinds = listOf(
-                            TextNoteEvent.kind, LongTextNoteEvent.kind,
-                            ReactionEvent.kind, RepostEvent.kind, ReportEvent.kind,
-                            LnZapEvent.kind, LnZapRequestEvent.kind,
-                            BadgeAwardEvent.kind, BadgeDefinitionEvent.kind, BadgeProfilesEvent.kind,
-                            PollNoteEvent.kind
+                            TextNoteEvent.kind,
+                            ReactionEvent.kind,
+                            RepostEvent.kind,
+                            GenericRepostEvent.kind,
+                            ReportEvent.kind,
+                            LnZapEvent.kind,
+                            PollNoteEvent.kind,
+                            CommunityPostApprovalEvent.kind,
+                            LiveActivitiesChatMessageEvent.kind
                         ),
                         tags = mapOf("a" to listOf(aTag.toTag())),
-                        since = it.lastReactionsDownloadTime
+                        since = it.lastReactionsDownloadTime,
+                        limit = 1000 // Max amount of "replies" to download on a specific event.
                     )
                 )
             }
@@ -48,14 +53,26 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
 
         return addressesToWatch.mapNotNull {
             it.address()?.let { aTag ->
-                TypedFilter(
-                    types = COMMON_FEED_TYPES,
-                    filter = JsonFilter(
-                        kinds = listOf(aTag.kind),
-                        tags = mapOf("d" to listOf(aTag.dTag)),
-                        authors = listOf(aTag.pubKeyHex.substring(0, 8))
+                if (aTag.kind < 25000 && aTag.dTag.isBlank()) {
+                    TypedFilter(
+                        types = COMMON_FEED_TYPES,
+                        filter = JsonFilter(
+                            kinds = listOf(aTag.kind),
+                            authors = listOf(aTag.pubKeyHex),
+                            limit = 1000 // Max amount of "replies" to download on a specific event.
+                        )
                     )
-                )
+                } else {
+                    TypedFilter(
+                        types = COMMON_FEED_TYPES,
+                        filter = JsonFilter(
+                            kinds = listOf(aTag.kind),
+                            tags = mapOf("d" to listOf(aTag.dTag)),
+                            authors = listOf(aTag.pubKeyHex),
+                            limit = 1000 // Max amount of "replies" to download on a specific event.
+                        )
+                    )
+                }
             }
         }
     }
@@ -73,16 +90,16 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
                 filter = JsonFilter(
                     kinds = listOf(
                         TextNoteEvent.kind,
-                        LongTextNoteEvent.kind,
                         ReactionEvent.kind,
                         RepostEvent.kind,
+                        GenericRepostEvent.kind,
                         ReportEvent.kind,
                         LnZapEvent.kind,
-                        LnZapRequestEvent.kind,
                         PollNoteEvent.kind
                     ),
                     tags = mapOf("e" to listOf(it.idHex)),
-                    since = it.lastReactionsDownloadTime
+                    since = it.lastReactionsDownloadTime,
+                    limit = 1000 // Max amount of "replies" to download on a specific event.
                 )
             )
         }
@@ -110,15 +127,6 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
             TypedFilter(
                 types = COMMON_FEED_TYPES,
                 filter = JsonFilter(
-                    kinds = listOf(
-                        TextNoteEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind,
-                        ReactionEvent.kind, RepostEvent.kind,
-                        LnZapEvent.kind, LnZapRequestEvent.kind,
-                        ChannelMessageEvent.kind, ChannelCreateEvent.kind, ChannelMetadataEvent.kind,
-                        BadgeDefinitionEvent.kind, BadgeAwardEvent.kind, BadgeProfilesEvent.kind,
-                        PrivateDmEvent.kind,
-                        FileHeaderEvent.kind, FileStorageEvent.kind, FileStorageHeaderEvent.kind
-                    ),
                     ids = interestedEvents.toList()
                 )
             )
@@ -126,6 +134,8 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
     }
 
     val singleEventChannel = requestNewChannel { time, relayUrl ->
+        checkNotInMainThread()
+
         eventsToWatch.forEach {
             val eose = it.lastReactionsDownloadTime[relayUrl]
             if (eose == null) {
@@ -144,28 +154,36 @@ object NostrSingleEventDataSource : NostrDataSource("SingleEventFeed") {
         val reactions = createRepliesAndReactionsFilter()
         val missing = createLoadEventsIfNotLoadedFilter()
         val addresses = createAddressFilter()
-        val addressReactions = createTagToAddressFilter()
+        val addressReactions = createReactionsToWatchInAddressFilter()
 
         singleEventChannel.typedFilters = listOfNotNull(missing, addresses, reactions, addressReactions).flatten().ifEmpty { null }
     }
 
     fun add(eventId: Note) {
-        eventsToWatch = eventsToWatch.plus(eventId)
-        invalidateFilters()
+        if (!eventsToWatch.contains(eventId)) {
+            eventsToWatch = eventsToWatch.plus(eventId)
+            invalidateFilters()
+        }
     }
 
     fun remove(eventId: Note) {
-        eventsToWatch = eventsToWatch.minus(eventId)
-        invalidateFilters()
+        if (eventsToWatch.contains(eventId)) {
+            eventsToWatch = eventsToWatch.minus(eventId)
+            invalidateFilters()
+        }
     }
 
-    fun addAddress(aTag: Note) {
-        addressesToWatch = addressesToWatch.plus(aTag)
-        invalidateFilters()
+    fun addAddress(addressableNote: Note) {
+        if (!addressesToWatch.contains(addressableNote)) {
+            addressesToWatch = addressesToWatch.plus(addressableNote)
+            invalidateFilters()
+        }
     }
 
-    fun removeAddress(aTag: Note) {
-        addressesToWatch = addressesToWatch.minus(aTag)
-        invalidateFilters()
+    fun removeAddress(addressableNote: Note) {
+        if (addressesToWatch.contains(addressableNote)) {
+            addressesToWatch = addressesToWatch.minus(addressableNote)
+            invalidateFilters()
+        }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleUserDataSource.kt

@@ -1,12 +1,12 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.service.model.MetadataEvent
-import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.EOSETime
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.MetadataEvent
+import com.vitorpamplona.quartz.events.ReportEvent
 
 object NostrSingleUserDataSource : NostrDataSource("SingleUserFeed") {
     var usersToWatch = setOf<User>()
@@ -64,12 +64,16 @@ object NostrSingleUserDataSource : NostrDataSource("SingleUserFeed") {
     }
 
     fun add(user: User) {
-        usersToWatch = usersToWatch.plus(user)
-        invalidateFilters()
+        if (!usersToWatch.contains(user)) {
+            usersToWatch = usersToWatch.plus(user)
+            invalidateFilters()
+        }
     }
 
     fun remove(user: User) {
-        usersToWatch = usersToWatch.minus(user)
-        invalidateFilters()
+        if (usersToWatch.contains(user)) {
+            usersToWatch = usersToWatch.minus(user)
+            invalidateFilters()
+        }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrUserProfileDataSource.kt

@@ -1,23 +1,16 @@
 package com.vitorpamplona.amethyst.service
 
-import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.service.model.*
 import com.vitorpamplona.amethyst.service.relays.COMMON_FEED_TYPES
 import com.vitorpamplona.amethyst.service.relays.JsonFilter
 import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.*
 
 object NostrUserProfileDataSource : NostrDataSource("UserProfileFeed") {
     var user: User? = null
 
-    fun loadUserProfile(userId: String?) {
-        if (userId != null) {
-            user = LocalCache.getOrCreateUser(userId)
-        } else {
-            user = null
-        }
-
-        resetFilters()
+    fun loadUserProfile(user: User?) {
+        this.user = user
     }
 
     fun createUserInfoFilter() = user?.let {
@@ -35,7 +28,17 @@ object NostrUserProfileDataSource : NostrDataSource("UserProfileFeed") {
         TypedFilter(
             types = COMMON_FEED_TYPES,
             filter = JsonFilter(
-                kinds = listOf(TextNoteEvent.kind, RepostEvent.kind, LongTextNoteEvent.kind, PollNoteEvent.kind),
+                kinds = listOf(
+                    TextNoteEvent.kind,
+                    GenericRepostEvent.kind,
+                    RepostEvent.kind,
+                    LongTextNoteEvent.kind,
+                    AudioTrackEvent.kind,
+                    AudioHeaderEvent.kind,
+                    PinListEvent.kind,
+                    PollNoteEvent.kind,
+                    HighlightEvent.kind
+                ),
                 authors = listOf(it.pubkeyHex),
                 limit = 200
             )
@@ -88,9 +91,9 @@ object NostrUserProfileDataSource : NostrDataSource("UserProfileFeed") {
         TypedFilter(
             types = COMMON_FEED_TYPES,
             filter = JsonFilter(
-                kinds = listOf(BookmarkListEvent.kind),
+                kinds = listOf(BookmarkListEvent.kind, PeopleListEvent.kind, AppRecommendationEvent.kind),
                 authors = listOf(it.pubkeyHex),
-                limit = 1
+                limit = 100
             )
         )
     }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrVideoDataSource.kt

@@ -0,0 +1,85 @@
+package com.vitorpamplona.amethyst.service
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.service.relays.EOSEAccount
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.JsonFilter
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import com.vitorpamplona.quartz.events.FileHeaderEvent
+import com.vitorpamplona.quartz.events.FileStorageHeaderEvent
+
+object NostrVideoDataSource : NostrDataSource("VideoFeed") {
+    lateinit var account: Account
+
+    val latestEOSEs = EOSEAccount()
+
+    fun createContextualFilter(): TypedFilter? {
+        val follows = account.selectedUsersFollowList(account.defaultStoriesFollowList)
+
+        val followKeys = follows?.map {
+            it.substring(0, 6)
+        }
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                authors = followKeys,
+                kinds = listOf(FileHeaderEvent.kind, FileStorageHeaderEvent.kind),
+                limit = 200,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultStoriesFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createFollowTagsFilter(): TypedFilter? {
+        val hashToLoad = account.selectedTagsFollowList(account.defaultStoriesFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(FileHeaderEvent.kind, FileStorageHeaderEvent.kind),
+                tags = mapOf(
+                    "t" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 100,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultStoriesFollowList)?.relayList
+            )
+        )
+    }
+
+    fun createFollowGeohashesFilter(): TypedFilter? {
+        val hashToLoad = account.selectedGeohashesFollowList(account.defaultStoriesFollowList)
+
+        if (hashToLoad.isNullOrEmpty()) return null
+
+        return TypedFilter(
+            types = setOf(FeedType.GLOBAL),
+            filter = JsonFilter(
+                kinds = listOf(FileHeaderEvent.kind, FileStorageHeaderEvent.kind),
+                tags = mapOf(
+                    "g" to hashToLoad.map {
+                        listOf(it, it.lowercase(), it.uppercase(), it.capitalize())
+                    }.flatten()
+                ),
+                limit = 100,
+                since = latestEOSEs.users[account.userProfile()]?.followList?.get(account.defaultStoriesFollowList)?.relayList
+            )
+        )
+    }
+
+    val videoFeedChannel = requestNewChannel() { time, relayUrl ->
+        latestEOSEs.addOrUpdate(account.userProfile(), account.defaultStoriesFollowList, relayUrl, time)
+    }
+
+    override fun updateChannelFilters() {
+        videoFeedChannel.typedFilters = listOfNotNull(
+            createContextualFilter(),
+            createFollowTagsFilter(),
+            createFollowGeohashesFilter()
+        ).ifEmpty { null }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/OnlineCheck.kt

@@ -0,0 +1,42 @@
+package com.vitorpamplona.amethyst.service
+
+import android.util.Log
+import android.util.LruCache
+import androidx.compose.runtime.Immutable
+import com.vitorpamplona.amethyst.BuildConfig
+import okhttp3.Request
+
+@Immutable
+data class OnlineCheckResult(val timeInMs: Long, val online: Boolean)
+
+object OnlineChecker {
+    val checkOnlineCache = LruCache<String, OnlineCheckResult>(100)
+    val fiveMinutes = 1000 * 60 * 5
+
+    fun isOnline(url: String?): Boolean {
+        checkNotInMainThread()
+
+        if (url.isNullOrBlank()) return false
+        if ((checkOnlineCache.get(url)?.timeInMs ?: 0) > System.currentTimeMillis() - fiveMinutes) {
+            return checkOnlineCache.get(url).online
+        }
+
+        return try {
+            val request = Request.Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .url(url)
+                .get()
+                .build()
+
+            val result = HttpClient.getHttpClient().newCall(request).execute().use {
+                it.isSuccessful
+            }
+            checkOnlineCache.put(url, OnlineCheckResult(System.currentTimeMillis(), result))
+            result
+        } catch (e: Exception) {
+            checkOnlineCache.put(url, OnlineCheckResult(System.currentTimeMillis(), false))
+            Log.e("LiveActivities", "Failed to check streaming url $url", e)
+            false
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/connectivitystatus/ConnectivityStatus.kt

@@ -0,0 +1,15 @@
+package com.vitorpamplona.amethyst.service.connectivitystatus
+
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+
+object ConnectivityStatus {
+    private val onMobileData = mutableStateOf(false)
+    val isOnMobileData: MutableState<Boolean> = onMobileData
+
+    fun updateConnectivityStatus(isOnMobileData: Boolean, isOnWifi: Boolean) {
+        if (onMobileData.value != isOnMobileData) {
+            onMobileData.value = isOnMobileData
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/lnurl/LightningAddressResolver.kt

@@ -2,22 +2,25 @@ package com.vitorpamplona.amethyst.service.lnurl
 
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.amethyst.service.HttpClient
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
+import com.vitorpamplona.quartz.encoders.Bech32
+import com.vitorpamplona.quartz.encoders.LnInvoiceUtil
+import com.vitorpamplona.quartz.encoders.toLnUrl
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import nostr.postr.Bech32
 import okhttp3.Call
 import okhttp3.Callback
-import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
 import java.math.BigDecimal
 import java.net.URLEncoder
 
-class LightningAddressResolver {
-    val client = OkHttpClient.Builder().build()
+class LightningAddressResolver() {
+    val client = HttpClient.getHttpClient()
 
     fun assembleUrl(lnaddress: String): String? {
         val parts = lnaddress.split("@")
@@ -45,6 +48,8 @@ class LightningAddressResolver {
     }
 
     private suspend fun fetchLightningAddressJsonSuspend(lnaddress: String, onSuccess: (String) -> Unit, onError: (String) -> Unit) {
+        checkNotInMainThread()
+
         val url = assembleUrl(lnaddress)
 
         if (url == null) {
@@ -52,28 +57,32 @@ class LightningAddressResolver {
             return
         }
 
-        withContext(Dispatchers.IO) {
-            val request: Request = Request.Builder()
-                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
-                .url(url)
-                .build()
+        try {
+            withContext(Dispatchers.IO) {
+                val request: Request = Request.Builder()
+                    .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                    .url(url)
+                    .build()
 
-            client.newCall(request).enqueue(object : Callback {
-                override fun onResponse(call: Call, response: Response) {
-                    response.use {
-                        if (it.isSuccessful) {
-                            onSuccess(it.body.string())
-                        } else {
-                            onError("Could not resolve $lnaddress. Error: ${it.code}. Check if the server up and if the lightning address $lnaddress is correct")
+                client.newCall(request).enqueue(object : Callback {
+                    override fun onResponse(call: Call, response: Response) {
+                        response.use {
+                            if (it.isSuccessful) {
+                                onSuccess(it.body.string())
+                            } else {
+                                onError("Could not resolve $lnaddress. Error: ${it.code}. Check if the server up and if the lightning address $lnaddress is correct")
+                            }
                         }
                     }
-                }
 
-                override fun onFailure(call: Call, e: java.io.IOException) {
-                    onError("Could not resolve $url. Check if the server up and if the lightning address $lnaddress is correct")
-                    e.printStackTrace()
-                }
-            })
+                    override fun onFailure(call: Call, e: java.io.IOException) {
+                        onError("Could not resolve $url. Check if the server up and if the lightning address $lnaddress is correct")
+                        e.printStackTrace()
+                    }
+                })
+            }
+        } catch (e: Exception) {
+            onError("Could not resolve $url. Check if the server up and if the lightning address $lnaddress is correct")
         }
     }
 
@@ -124,7 +133,7 @@ class LightningAddressResolver {
         fetchLightningAddressJson(
             lnaddress,
             onSuccess = {
-                onSuccess(Bech32.encodeBytes("lnurl", it.toByteArray(), Bech32.Encoding.Bech32))
+                onSuccess(it.toByteArray().toLnUrl())
             },
             onError = onError
         )
@@ -169,7 +178,7 @@ class LightningAddressResolver {
                                 null
                             }
 
-                            lnInvoice?.get("pr")?.asText()?.let { pr ->
+                            lnInvoice?.get("pr")?.asText()?.ifBlank { null }?.let { pr ->
                                 // Forces LN Invoice amount to be the requested amount.
                                 val invoiceAmount = LnInvoiceUtil.getAmountInSats(pr)
                                 if (invoiceAmount.multiply(BigDecimal(1000)).toLong() == BigDecimal(milliSats).toLong()) {

app/src/main/java/com/vitorpamplona/amethyst/service/model/BadgeAwardEvent.kt

@@ -1,24 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-
-class BadgeAwardEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-    fun awardees() = tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }
-    fun awardDefinition() = tags.filter { it.firstOrNull() == "a" }.mapNotNull {
-        val aTagValue = it.getOrNull(1)
-        val relay = it.getOrNull(2)
-
-        if (aTagValue != null) ATag.parse(aTagValue, relay) else null
-    }
-
-    companion object {
-        const val kind = 8
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/BadgeDefinitionEvent.kt

@@ -1,24 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-
-class BadgeDefinitionEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-    fun dTag() = tags.filter { it.firstOrNull() == "d" }.mapNotNull { it.getOrNull(1) }.firstOrNull() ?: ""
-    fun address() = ATag(kind, pubKey, dTag(), null)
-
-    fun name() = tags.filter { it.firstOrNull() == "name" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
-    fun thumb() = tags.filter { it.firstOrNull() == "thumb" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
-    fun image() = tags.filter { it.firstOrNull() == "image" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
-    fun description() = tags.filter { it.firstOrNull() == "description" }.mapNotNull { it.getOrNull(1) }.firstOrNull()
-
-    companion object {
-        const val kind = 30009
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/BookmarkListEvent.kt

@@ -1,117 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import android.util.Log
-import com.google.gson.reflect.TypeToken
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class BookmarkListEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-    fun dTag() = tags.filter { it.firstOrNull() == "d" }.mapNotNull { it.getOrNull(1) }.firstOrNull() ?: ""
-    fun address() = ATag(kind, pubKey, dTag(), null)
-
-    fun category() = dTag()
-    fun bookmarkedPosts() = tags.filter { it[0] == "e" }.mapNotNull { it.getOrNull(1) }
-
-    fun plainContent(privKey: ByteArray): String? {
-        return try {
-            val sharedSecret = Utils.getSharedSecret(privKey, pubKey.toByteArray())
-
-            return Utils.decrypt(content, sharedSecret)
-        } catch (e: Exception) {
-            Log.w("BookmarkList", "Error decrypting the message ${e.message}")
-            null
-        }
-    }
-
-    @Transient
-    private var privateTagsCache: List<List<String>>? = null
-
-    fun privateTags(privKey: ByteArray): List<List<String>>? {
-        if (privateTagsCache != null) {
-            return privateTagsCache
-        }
-
-        privateTagsCache = try {
-            gson.fromJson(plainContent(privKey), object : TypeToken<List<List<String>>>() {}.type)
-        } catch (e: Throwable) {
-            Log.w("BookmarkList", "Error parsing the JSON ${e.message}")
-            null
-        }
-        return privateTagsCache
-    }
-
-    fun privateTaggedUsers(privKey: ByteArray) = privateTags(privKey)?.filter { it.firstOrNull() == "p" }?.mapNotNull { it.getOrNull(1) }
-    fun privateTaggedEvents(privKey: ByteArray) = privateTags(privKey)?.filter { it.firstOrNull() == "e" }?.mapNotNull { it.getOrNull(1) }
-    fun privateTaggedAddresses(privKey: ByteArray) = privateTags(privKey)?.filter { it.firstOrNull() == "a" }?.mapNotNull {
-        val aTagValue = it.getOrNull(1)
-        val relay = it.getOrNull(2)
-
-        if (aTagValue != null) ATag.parse(aTagValue, relay) else null
-    }
-
-    companion object {
-        const val kind = 30001
-
-        fun create(
-            name: String = "",
-
-            events: List<String>? = null,
-            users: List<String>? = null,
-            addresses: List<ATag>? = null,
-
-            privEvents: List<String>? = null,
-            privUsers: List<String>? = null,
-            privAddresses: List<ATag>? = null,
-
-            privateKey: ByteArray,
-            createdAt: Long = Date().time / 1000
-        ): BookmarkListEvent {
-            val pubKey = Utils.pubkeyCreate(privateKey)
-
-            val privTags = mutableListOf<List<String>>()
-            privEvents?.forEach {
-                privTags.add(listOf("e", it))
-            }
-            privUsers?.forEach {
-                privTags.add(listOf("p", it))
-            }
-            privAddresses?.forEach {
-                privTags.add(listOf("a", it.toTag()))
-            }
-            val msg = gson.toJson(privTags)
-
-            val content = Utils.encrypt(
-                msg,
-                privateKey,
-                pubKey
-            )
-
-            val tags = mutableListOf<List<String>>()
-            tags.add(listOf("d", name))
-
-            events?.forEach {
-                tags.add(listOf("e", it))
-            }
-            users?.forEach {
-                tags.add(listOf("p", it))
-            }
-            addresses?.forEach {
-                tags.add(listOf("a", it.toTag()))
-            }
-
-            val id = generateId(pubKey.toHexKey(), createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return BookmarkListEvent(id.toHexKey(), pubKey.toHexKey(), createdAt, tags, content, sig.toHexKey())
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ChannelHideMessageEvent.kt

@@ -1,33 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class ChannelHideMessageEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-    fun eventsToHide() = tags.filter { it.firstOrNull() == "e" }.mapNotNull { it.getOrNull(1) }
-
-    companion object {
-        const val kind = 43
-
-        fun create(reason: String, messagesToHide: List<String>?, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ChannelHideMessageEvent {
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val tags =
-                messagesToHide?.map {
-                    listOf("e", it)
-                } ?: emptyList()
-
-            val id = generateId(pubKey, createdAt, kind, tags, reason)
-            val sig = Utils.sign(id, privateKey)
-            return ChannelHideMessageEvent(id.toHexKey(), pubKey, createdAt, tags, reason, sig.toHexKey())
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ChannelMessageEvent.kt

@@ -1,44 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class ChannelMessageEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : BaseTextNoteEvent(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    fun channel() = tags.firstOrNull { it[0] == "e" && it.size > 3 && it[3] == "root" }?.getOrNull(1) ?: tags.firstOrNull { it.firstOrNull() == "e" }?.getOrNull(1)
-    override fun replyTos() = tags.filter { it.firstOrNull() == "e" && it.getOrNull(1) != channel() }.mapNotNull { it.getOrNull(1) }
-
-    companion object {
-        const val kind = 42
-
-        fun create(message: String, channel: String, replyTos: List<String>? = null, mentions: List<String>? = null, zapReceiver: String?, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ChannelMessageEvent {
-            val content = message
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val tags = mutableListOf(
-                listOf("e", channel, "", "root")
-            )
-            replyTos?.forEach {
-                tags.add(listOf("e", it))
-            }
-            mentions?.forEach {
-                tags.add(listOf("p", it))
-            }
-            zapReceiver?.let {
-                tags.add(listOf("zap", it))
-            }
-
-            val id = generateId(pubKey, createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return ChannelMessageEvent(id.toHexKey(), pubKey, createdAt, tags, content, sig.toHexKey())
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ChannelMuteUserEvent.kt

@@ -1,35 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class ChannelMuteUserEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    fun usersToMute() = tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }
-
-    companion object {
-        const val kind = 44
-
-        fun create(reason: String, usersToMute: List<String>?, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ChannelMuteUserEvent {
-            val content = reason
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val tags =
-                usersToMute?.map {
-                    listOf("p", it)
-                } ?: emptyList()
-
-            val id = generateId(pubKey, createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return ChannelMuteUserEvent(id.toHexKey(), pubKey, createdAt, tags, content, sig.toHexKey())
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ContactListEvent.kt

@@ -1,98 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import android.util.Log
-import com.google.gson.reflect.TypeToken
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.decodePublicKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-data class Contact(val pubKeyHex: String, val relayUri: String?)
-
-class ContactListEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-    // This function is only used by the user logged in
-    // But it is used all the time.
-    val verifiedFollowKeySet: Set<HexKey> by lazy {
-        tags.filter { it[0] == "p" }.mapNotNull {
-            it.getOrNull(1)?.let { unverifiedHex: String ->
-                try {
-                    decodePublicKey(unverifiedHex).toHexKey()
-                } catch (e: Exception) {
-                    Log.w("ContactListEvent", "Can't parse tags as a follows: ${it[1]}", e)
-                    null
-                }
-            }
-        }.toSet()
-    }
-
-    val verifiedFollowTagSet: Set<String> by lazy {
-        unverifiedFollowTagSet().map { it.lowercase() }.toSet()
-    }
-
-    val verifiedFollowKeySetAndMe: Set<HexKey> by lazy {
-        verifiedFollowKeySet + pubKey
-    }
-
-    fun unverifiedFollowKeySet() = tags.filter { it[0] == "p" }.mapNotNull { it.getOrNull(1) }
-    fun unverifiedFollowTagSet() = tags.filter { it[0] == "t" }.mapNotNull { it.getOrNull(1) }
-
-    fun follows() = tags.filter { it[0] == "p" }.mapNotNull {
-        try {
-            Contact(decodePublicKey(it[1]).toHexKey(), it.getOrNull(2))
-        } catch (e: Exception) {
-            Log.w("ContactListEvent", "Can't parse tags as a follows: ${it[1]}", e)
-            null
-        }
-    }
-
-    fun followsTags() = tags.filter { it[0] == "t" }.mapNotNull {
-        it.getOrNull(2)
-    }
-
-    fun relays(): Map<String, ReadWrite>? = try {
-        if (content.isNotEmpty()) {
-            gson.fromJson(content, object : TypeToken<Map<String, ReadWrite>>() {}.type) as Map<String, ReadWrite>
-        } else {
-            null
-        }
-    } catch (e: Exception) {
-        Log.w("ContactListEvent", "Can't parse content as relay lists: $content", e)
-        null
-    }
-
-    companion object {
-        const val kind = 3
-
-        fun create(follows: List<Contact>, followTags: List<String>, relayUse: Map<String, ReadWrite>?, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ContactListEvent {
-            val content = if (relayUse != null) {
-                gson.toJson(relayUse)
-            } else {
-                ""
-            }
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val tags = follows.map {
-                if (it.relayUri != null) {
-                    listOf("p", it.pubKeyHex, it.relayUri)
-                } else {
-                    listOf("p", it.pubKeyHex)
-                }
-            } + followTags.map {
-                listOf("t", it)
-            }
-
-            val id = generateId(pubKey, createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return ContactListEvent(id.toHexKey(), pubKey, createdAt, tags, content, sig.toHexKey())
-        }
-    }
-
-    data class ReadWrite(val read: Boolean, val write: Boolean)
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/Event.kt

@@ -1,274 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.google.gson.*
-import com.google.gson.annotations.SerializedName
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import fr.acinq.secp256k1.Hex
-import fr.acinq.secp256k1.Secp256k1
-import nostr.postr.Utils
-import nostr.postr.toHex
-import java.lang.reflect.Type
-import java.math.BigDecimal
-import java.security.MessageDigest
-import java.util.*
-
-open class Event(
-    val id: HexKey,
-    @SerializedName("pubkey") val pubKey: HexKey,
-    @SerializedName("created_at") val createdAt: Long,
-    val kind: Int,
-    val tags: List<List<String>>,
-    val content: String,
-    val sig: HexKey
-) : EventInterface {
-    override fun id(): HexKey = id
-
-    override fun pubKey(): HexKey = pubKey
-
-    override fun createdAt(): Long = createdAt
-
-    override fun kind(): Int = kind
-
-    override fun tags(): List<List<String>> = tags
-
-    override fun content(): String = content
-
-    override fun sig(): HexKey = sig
-
-    override fun toJson(): String = gson.toJson(this)
-
-    fun taggedUsers() = tags.filter { it.size > 1 && it[0] == "p" }.map { it[1] }
-    fun taggedEvents() = tags.filter { it.size > 1 && it[0] == "e" }.map { it[1] }
-
-    override fun zapAddress() = tags.firstOrNull { it.size > 1 && it[0] == "zap" }?.get(1)
-
-    fun taggedAddresses() = tags.filter { it.size > 1 && it[0] == "a" }.mapNotNull {
-        val aTagValue = it[1]
-        val relay = it.getOrNull(2)
-
-        ATag.parse(aTagValue, relay)
-    }
-
-    override fun hashtags() = tags.filter { it.size > 1 && it[0] == "t" }.map { it[1] }
-
-    override fun isTaggedUser(idHex: String) = tags.any { it.size > 1 && it[0] == "p" && it[1] == idHex }
-
-    override fun isTaggedHash(hashtag: String) = tags.any { it.size > 1 && it[0] == "t" && it[1].equals(hashtag, true) }
-    override fun isTaggedHashes(hashtags: Set<String>) = tags.any { it.size > 1 && it[0] == "t" && it[1].lowercase() in hashtags }
-    override fun firstIsTaggedHashes(hashtags: Set<String>) = tags.firstOrNull { it.size > 1 && it[0] == "t" && it[1].lowercase() in hashtags }?.getOrNull(1)
-
-    override fun getPoWRank(): Int {
-        var rank = 0
-        for (i in 0..id.length) {
-            if (id[i] == '0') {
-                rank += 4
-            } else if (id[i] in '4'..'7') {
-                rank += 1
-                break
-            } else if (id[i] in '2'..'3') {
-                rank += 2
-                break
-            } else if (id[i] == '1') {
-                rank += 3
-                break
-            } else {
-                break
-            }
-        }
-        return rank
-    }
-
-    override fun getReward(): BigDecimal? {
-        return try {
-            tags.filter { it.firstOrNull() == "reward" }.mapNotNull { it.getOrNull(1)?.let { BigDecimal(it) } }.firstOrNull()
-        } catch (e: Exception) {
-            null
-        }
-    }
-
-    /**
-     * Checks if the ID is correct and then if the pubKey's secret key signed the event.
-     */
-    override fun checkSignature() {
-        if (!id.contentEquals(generateId())) {
-            throw Exception(
-                """|Unexpected ID.
-                   |  Event: ${toJson()}
-                   |  Actual ID: $id
-                   |  Generated: ${generateId()}
-                """.trimIndent()
-            )
-        }
-        if (!secp256k1.verifySchnorr(Hex.decode(sig), Hex.decode(id), Hex.decode(pubKey))) {
-            throw Exception("""Bad signature!""")
-        }
-    }
-
-    override fun hasValidSignature(): Boolean {
-        if (!id.contentEquals(generateId())) {
-            return false
-        }
-
-        return secp256k1.verifySchnorr(Hex.decode(sig), Hex.decode(id), Hex.decode(pubKey))
-    }
-
-    private fun generateId(): String {
-        val rawEvent = listOf(0, pubKey, createdAt, kind, tags, content)
-
-        // GSON decided to hardcode these replacements.
-        // They break Nostr's hash check.
-        // These lines revert their code.
-        // https://github.com/google/gson/issues/2295
-        val rawEventJson = gson.toJson(rawEvent)
-            .replace("\\u2028", "\u2028")
-            .replace("\\u2029", "\u2029")
-
-        return sha256.digest(rawEventJson.toByteArray()).toHexKey()
-    }
-
-    private class EventDeserializer : JsonDeserializer<Event> {
-        override fun deserialize(
-            json: JsonElement,
-            typeOfT: Type?,
-            context: JsonDeserializationContext?
-        ): Event {
-            val jsonObject = json.asJsonObject
-            return Event(
-                id = jsonObject.get("id").asString,
-                pubKey = jsonObject.get("pubkey").asString,
-                createdAt = jsonObject.get("created_at").asLong,
-                kind = jsonObject.get("kind").asInt,
-                tags = jsonObject.get("tags").asJsonArray.map {
-                    it.asJsonArray.mapNotNull { s -> if (s.isJsonNull) null else s.asString }
-                },
-                content = jsonObject.get("content").asString,
-                sig = jsonObject.get("sig").asString
-            )
-        }
-    }
-
-    private class EventSerializer : JsonSerializer<Event> {
-        override fun serialize(
-            src: Event,
-            typeOfSrc: Type?,
-            context: JsonSerializationContext?
-        ): JsonElement {
-            return JsonObject().apply {
-                addProperty("id", src.id)
-                addProperty("pubkey", src.pubKey)
-                addProperty("created_at", src.createdAt)
-                addProperty("kind", src.kind)
-                add(
-                    "tags",
-                    JsonArray().also { jsonTags ->
-                        src.tags.forEach { tag ->
-                            jsonTags.add(
-                                JsonArray().also { jsonTagElement ->
-                                    tag.forEach { tagElement ->
-                                        jsonTagElement.add(tagElement)
-                                    }
-                                }
-                            )
-                        }
-                    }
-                )
-                addProperty("content", src.content)
-                addProperty("sig", src.sig)
-            }
-        }
-    }
-
-    private class ByteArrayDeserializer : JsonDeserializer<ByteArray> {
-        override fun deserialize(
-            json: JsonElement,
-            typeOfT: Type?,
-            context: JsonDeserializationContext?
-        ): ByteArray = Hex.decode(json.asString)
-    }
-
-    private class ByteArraySerializer : JsonSerializer<ByteArray> {
-        override fun serialize(
-            src: ByteArray,
-            typeOfSrc: Type?,
-            context: JsonSerializationContext?
-        ) = JsonPrimitive(src.toHex())
-    }
-
-    companion object {
-        private val secp256k1 = Secp256k1.get()
-
-        val sha256: MessageDigest = MessageDigest.getInstance("SHA-256")
-        val gson: Gson = GsonBuilder()
-            .disableHtmlEscaping()
-            .registerTypeAdapter(Event::class.java, EventSerializer())
-            .registerTypeAdapter(Event::class.java, EventDeserializer())
-            .registerTypeAdapter(ByteArray::class.java, ByteArraySerializer())
-            .registerTypeAdapter(ByteArray::class.java, ByteArrayDeserializer())
-            .create()
-
-        fun fromJson(json: String, lenient: Boolean = false): Event = gson.fromJson(json, Event::class.java).getRefinedEvent(lenient)
-
-        fun fromJson(json: JsonElement, lenient: Boolean = false): Event = gson.fromJson(json, Event::class.java).getRefinedEvent(lenient)
-
-        fun Event.getRefinedEvent(lenient: Boolean = false): Event = when (kind) {
-            BadgeAwardEvent.kind -> BadgeAwardEvent(id, pubKey, createdAt, tags, content, sig)
-            BadgeDefinitionEvent.kind -> BadgeDefinitionEvent(id, pubKey, createdAt, tags, content, sig)
-            BadgeProfilesEvent.kind -> BadgeProfilesEvent(id, pubKey, createdAt, tags, content, sig)
-            BookmarkListEvent.kind -> BookmarkListEvent(id, pubKey, createdAt, tags, content, sig)
-            ChannelCreateEvent.kind -> ChannelCreateEvent(id, pubKey, createdAt, tags, content, sig)
-            ChannelHideMessageEvent.kind -> ChannelHideMessageEvent(id, pubKey, createdAt, tags, content, sig)
-            ChannelMessageEvent.kind -> ChannelMessageEvent(id, pubKey, createdAt, tags, content, sig)
-            ChannelMetadataEvent.kind -> ChannelMetadataEvent(id, pubKey, createdAt, tags, content, sig)
-            ChannelMuteUserEvent.kind -> ChannelMuteUserEvent(id, pubKey, createdAt, tags, content, sig)
-            ContactListEvent.kind -> ContactListEvent(id, pubKey, createdAt, tags, content, sig)
-            DeletionEvent.kind -> DeletionEvent(id, pubKey, createdAt, tags, content, sig)
-
-            FileHeaderEvent.kind -> FileHeaderEvent(id, pubKey, createdAt, tags, content, sig)
-            FileStorageEvent.kind -> FileStorageEvent(id, pubKey, createdAt, tags, content, sig)
-            FileStorageHeaderEvent.kind -> FileStorageHeaderEvent(id, pubKey, createdAt, tags, content, sig)
-            LnZapEvent.kind -> LnZapEvent(id, pubKey, createdAt, tags, content, sig)
-            LnZapPaymentRequestEvent.kind -> LnZapPaymentRequestEvent(id, pubKey, createdAt, tags, content, sig)
-            LnZapPaymentResponseEvent.kind -> LnZapPaymentResponseEvent(id, pubKey, createdAt, tags, content, sig)
-            LnZapRequestEvent.kind -> LnZapRequestEvent(id, pubKey, createdAt, tags, content, sig)
-            LongTextNoteEvent.kind -> LongTextNoteEvent(id, pubKey, createdAt, tags, content, sig)
-            MetadataEvent.kind -> MetadataEvent(id, pubKey, createdAt, tags, content, sig)
-            PollNoteEvent.kind -> PollNoteEvent(id, pubKey, createdAt, tags, content, sig)
-            PrivateDmEvent.kind -> PrivateDmEvent(id, pubKey, createdAt, tags, content, sig)
-            ReactionEvent.kind -> ReactionEvent(id, pubKey, createdAt, tags, content, sig)
-            RecommendRelayEvent.kind -> RecommendRelayEvent(id, pubKey, createdAt, tags, content, sig, lenient)
-            ReportEvent.kind -> ReportEvent(id, pubKey, createdAt, tags, content, sig)
-            RepostEvent.kind -> RepostEvent(id, pubKey, createdAt, tags, content, sig)
-            TextNoteEvent.kind -> TextNoteEvent(id, pubKey, createdAt, tags, content, sig)
-            else -> this
-        }
-
-        fun generateId(pubKey: HexKey, createdAt: Long, kind: Int, tags: List<List<String>>, content: String): ByteArray {
-            val rawEvent = listOf(
-                0,
-                pubKey,
-                createdAt,
-                kind,
-                tags,
-                content
-            )
-
-            // GSON decided to hardcode these replacements.
-            // They break Nostr's hash check.
-            // These lines revert their code.
-            // https://github.com/google/gson/issues/2295
-            val rawEventJson = gson.toJson(rawEvent)
-                .replace("\\u2028", "\u2028")
-                .replace("\\u2029", "\u2029")
-
-            return sha256.digest(rawEventJson.toByteArray())
-        }
-
-        fun create(privateKey: ByteArray, kind: Int, tags: List<List<String>> = emptyList(), content: String = "", createdAt: Long = Date().time / 1000): Event {
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val id = Companion.generateId(pubKey, createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey).toHexKey()
-            return Event(id.toHexKey(), pubKey, createdAt, kind, tags, content, sig)
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/EventInterface.kt

@@ -1,38 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-import java.math.BigDecimal
-
-interface EventInterface {
-    fun id(): HexKey
-
-    fun pubKey(): HexKey
-
-    fun createdAt(): Long
-
-    fun kind(): Int
-
-    fun tags(): List<List<String>>
-
-    fun content(): String
-
-    fun sig(): HexKey
-
-    fun toJson(): String
-
-    fun checkSignature()
-
-    fun hasValidSignature(): Boolean
-
-    fun isTaggedUser(idHex: String): Boolean
-
-    fun isTaggedHash(hashtag: String): Boolean
-    fun isTaggedHashes(hashtags: Set<String>): Boolean
-    fun firstIsTaggedHashes(hashtags: Set<String>): String?
-    fun hashtags(): List<String>
-
-    fun getReward(): BigDecimal?
-    fun getPoWRank(): Int
-
-    fun zapAddress(): String?
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/LnZapPaymentRequestEvent.kt

@@ -1,69 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import android.util.Log
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class LnZapPaymentRequestEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    fun walletServicePubKey() = tags.firstOrNull() { it.size > 1 && it[0] == "p" }?.get(1)
-
-    fun lnInvoice(privKey: ByteArray): String? {
-        return try {
-            val sharedSecret = Utils.getSharedSecret(privKey, pubKey.toByteArray())
-
-            return Utils.decrypt(content, sharedSecret)
-        } catch (e: Exception) {
-            Log.w("BookmarkList", "Error decrypting the message ${e.message}")
-            null
-        }
-    }
-
-    companion object {
-        const val kind = 23194
-
-        fun create(
-            lnInvoice: String,
-            walletServicePubkey: String,
-            privateKey: ByteArray,
-            createdAt: Long = Date().time / 1000
-        ): LnZapPaymentRequestEvent {
-            val pubKey = Utils.pubkeyCreate(privateKey)
-            val serializedRequest = gson.toJson(PayInvoiceMethod(lnInvoice))
-
-            val content = Utils.encrypt(
-                serializedRequest,
-                privateKey,
-                walletServicePubkey.toByteArray()
-            )
-
-            val tags = mutableListOf<List<String>>()
-            tags.add(listOf("p", walletServicePubkey))
-
-            val id = generateId(pubKey.toHexKey(), createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return LnZapPaymentRequestEvent(id.toHexKey(), pubKey.toHexKey(), createdAt, tags, content, sig.toHexKey())
-        }
-    }
-}
-
-// REQUEST OBJECTS
-
-abstract class Request(val method: String, val params: Params)
-abstract class Params
-
-// PayInvoice Call
-
-class PayInvoiceMethod(bolt11: String) : Request("pay_invoice", PayInvoiceParams(bolt11)) {
-    class PayInvoiceParams(val invoice: String) : Params()
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/LnZapPaymentResponseEvent.kt

@@ -1,88 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import android.util.Log
-import com.google.gson.annotations.SerializedName
-import com.vitorpamplona.amethyst.model.HexKey
-import nostr.postr.Utils
-
-class LnZapPaymentResponseEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    fun requestAuthor() = tags.firstOrNull() { it.size > 1 && it[0] == "p" }?.get(1)
-    fun requestId() = tags.firstOrNull() { it.size > 1 && it[0] == "e" }?.get(1)
-
-    fun decrypt(privKey: ByteArray, pubKey: ByteArray): String? {
-        return try {
-            val sharedSecret = Utils.getSharedSecret(privKey, pubKey)
-
-            val retVal = Utils.decrypt(content, sharedSecret)
-
-            if (retVal.startsWith(PrivateDmEvent.nip18Advertisement)) {
-                retVal.substring(16)
-            } else {
-                retVal
-            }
-        } catch (e: Exception) {
-            Log.w("PrivateDM", "Error decrypting the message ${e.message}")
-            null
-        }
-    }
-
-    fun response(privKey: ByteArray, pubKey: ByteArray): Response? = try {
-        if (content.isNotEmpty()) {
-            gson.fromJson(decrypt(privKey, pubKey), Response::class.java)
-        } else {
-            null
-        }
-    } catch (e: Exception) {
-        Log.w("LnZapPaymentResponseEvent", "Can't parse content as a payment response: $content", e)
-        null
-    }
-
-    companion object {
-        const val kind = 23195
-    }
-}
-
-// RESPONSE OBJECTS
-abstract class Response(
-    @SerializedName("result_type")
-    val resultType: String
-)
-
-// PayInvoice Call
-
-class PayInvoiceSuccessResponse(val result: PayInvoiceResultParams) :
-    Response("pay_invoice") {
-    class PayInvoiceResultParams(val preimage: String)
-}
-
-class PayInvoiceErrorResponse(val error: PayInvoiceErrorParams? = null) :
-    Response("pay_invoice") {
-    class PayInvoiceErrorParams(val code: ErrorType?, val message: String?)
-
-    enum class ErrorType {
-        @SerializedName(value = "rate_limited", alternate = ["RATE_LIMITED"])
-        RATE_LIMITED, // The client is sending commands too fast. It should retry in a few seconds.
-        @SerializedName(value = "not_implemented", alternate = ["NOT_IMPLEMENTED"])
-        NOT_IMPLEMENTED, // The command is not known or is intentionally not implemented.
-        @SerializedName(value = "insufficient_balance", alternate = ["INSUFFICIENT_BALANCE"])
-        INSUFFICIENT_BALANCE, // The wallet does not have enough funds to cover a fee reserve or the payment amount.
-        @SerializedName(value = "quota_exceeded", alternate = ["QUOTA_EXCEEDED"])
-        QUOTA_EXCEEDED, // The wallet has exceeded its spending quota.
-        @SerializedName(value = "restricted", alternate = ["RESTRICTED"])
-        RESTRICTED, // This public key is not allowed to do this operation.
-        @SerializedName(value = "unauthorized", alternate = ["UNAUTHORIZED"])
-        UNAUTHORIZED, // This public key has no wallet connected.
-        @SerializedName(value = "internal", alternate = ["INTERNAL"])
-        INTERNAL, // An internal error.
-        @SerializedName(value = "other", alternate = ["OTHER"])
-        OTHER // Other error.
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ReactionEvent.kt

@@ -1,44 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Utils
-import java.util.Date
-
-class ReactionEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : Event(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    fun originalPost() = tags.filter { it.size > 1 && it[0] == "e" }.map { it[1] }
-    fun originalAuthor() = tags.filter { it.size > 1 && it[0] == "p" }.map { it[1] }
-
-    companion object {
-        const val kind = 7
-
-        fun createWarning(originalNote: EventInterface, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ReactionEvent {
-            return create("\u26A0\uFE0F", originalNote, privateKey, createdAt)
-        }
-
-        fun createLike(originalNote: EventInterface, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ReactionEvent {
-            return create("+", originalNote, privateKey, createdAt)
-        }
-
-        fun create(content: String, originalNote: EventInterface, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ReactionEvent {
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-
-            var tags = listOf(listOf("e", originalNote.id()), listOf("p", originalNote.pubKey()))
-            if (originalNote is LongTextNoteEvent) {
-                tags = tags + listOf(listOf("a", originalNote.address().toTag()))
-            }
-
-            val id = generateId(pubKey, createdAt, kind, tags, content)
-            val sig = Utils.sign(id, privateKey)
-            return ReactionEvent(id.toHexKey(), pubKey, createdAt, tags, content, sig.toHexKey())
-        }
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/TextNoteEvent.kt

@@ -1,66 +0,0 @@
-package com.vitorpamplona.amethyst.service.model
-
-import com.linkedin.urls.detection.UrlDetector
-import com.linkedin.urls.detection.UrlDetectorOptions
-import com.vitorpamplona.amethyst.model.HexKey
-import com.vitorpamplona.amethyst.model.toHexKey
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.findHashtags
-import nostr.postr.Utils
-import java.util.Date
-
-class TextNoteEvent(
-    id: HexKey,
-    pubKey: HexKey,
-    createdAt: Long,
-    tags: List<List<String>>,
-    content: String,
-    sig: HexKey
-) : BaseTextNoteEvent(id, pubKey, createdAt, kind, tags, content, sig) {
-
-    companion object {
-        const val kind = 1
-
-        fun create(
-            msg: String,
-            replyTos: List<String>?,
-            mentions: List<String>?,
-            addresses: List<ATag>?,
-            extraTags: List<String>?,
-            zapReceiver: String?,
-            privateKey: ByteArray,
-            createdAt: Long = Date().time / 1000
-        ): TextNoteEvent {
-            val pubKey = Utils.pubkeyCreate(privateKey).toHexKey()
-            val tags = mutableListOf<List<String>>()
-            replyTos?.forEach {
-                tags.add(listOf("e", it))
-            }
-            mentions?.forEach {
-                tags.add(listOf("p", it))
-            }
-            addresses?.forEach {
-                tags.add(listOf("a", it.toTag()))
-            }
-            findHashtags(msg).forEach {
-                tags.add(listOf("t", it))
-            }
-            extraTags?.forEach {
-                tags.add(listOf("t", it))
-            }
-            zapReceiver?.let {
-                tags.add(listOf("zap", it))
-            }
-            findURLs(msg).forEach {
-                tags.add(listOf("r", it))
-            }
-
-            val id = generateId(pubKey, createdAt, kind, tags, msg)
-            val sig = Utils.sign(id, privateKey)
-            return TextNoteEvent(id.toHexKey(), pubKey, createdAt, tags, msg, sig.toHexKey())
-        }
-    }
-}
-
-fun findURLs(text: String): List<String> {
-    return UrlDetector(text, UrlDetectorOptions.Default).detect().map { it.originalUrl }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/model/zaps/UserZaps.kt

@@ -1,18 +1,22 @@
-package com.vitorpamplona.amethyst.service.model.zaps
+package com.vitorpamplona.quartz.events.zaps
 
 import com.vitorpamplona.amethyst.model.Note
-import com.vitorpamplona.amethyst.service.model.LnZapEventInterface
+import com.vitorpamplona.amethyst.ui.screen.ZapReqResponse
+import com.vitorpamplona.quartz.events.LnZapEventInterface
 
 object UserZaps {
-    fun forProfileFeed(zaps: Map<Note, Note?>?): List<Pair<Note, Note>> {
+    fun forProfileFeed(zaps: Map<Note, Note?>?): List<ZapReqResponse> {
         if (zaps == null) return emptyList()
 
         return (
             zaps
-                .filter { it.value != null }
-                .toList()
-                .sortedBy { (it.second?.event as? LnZapEventInterface)?.amount() }
+                .mapNotNull { entry ->
+                    entry.value?.let {
+                        ZapReqResponse(entry.key, it)
+                    }
+                }
+                .sortedBy { (it.zapEvent.event as? LnZapEventInterface)?.amount() }
                 .reversed()
-            ) as List<Pair<Note, Note>>
+            )
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/nip19/Nip19.kt

@@ -1,170 +0,0 @@
-package com.vitorpamplona.amethyst.service.nip19
-
-import android.util.Log
-import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.model.toHexKey
-import nostr.postr.Bech32
-import nostr.postr.bechToBytes
-import nostr.postr.toByteArray
-import java.util.regex.Pattern
-
-object Nip19 {
-    enum class Type {
-        USER, NOTE, EVENT, RELAY, ADDRESS
-    }
-
-    val nip19regex = Pattern.compile("(nostr:)?@?(nsec1|npub1|nevent1|naddr1|note1|nprofile1|nrelay1)([qpzry9x8gf2tvdw0s3jn54khce6mua7l]+)(.*)", Pattern.CASE_INSENSITIVE)
-
-    data class Return(
-        val type: Type,
-        val hex: String,
-        val relay: String? = null,
-        val author: String? = null,
-        val kind: Long? = null,
-        val additionalChars: String = ""
-    )
-
-    fun uriToRoute(uri: String?): Return? {
-        if (uri == null) return null
-
-        try {
-            val matcher = nip19regex.matcher(uri)
-            if (!matcher.find()) {
-                return null
-            }
-
-            val uriScheme = matcher.group(1) // nostr:
-            val type = matcher.group(2) // npub1
-            val key = matcher.group(3) // bech32
-            val additionalChars = matcher.group(4) // additional chars
-
-            return parseComponents(uriScheme, type, key, additionalChars)
-        } catch (e: Throwable) {
-            Log.e("NIP19 Parser", "Issue trying to Decode NIP19 $uri: ${e.message}", e)
-        }
-
-        return null
-    }
-
-    fun parseComponents(
-        uriScheme: String?,
-        type: String,
-        key: String?,
-        additionalChars: String?
-    ): Return? {
-        return try {
-            val bytes = (type + key).bechToBytes()
-            val parsed = when (type.lowercase()) {
-                "npub1" -> npub(bytes)
-                "note1" -> note(bytes)
-                "nprofile1" -> nprofile(bytes)
-                "nevent1" -> nevent(bytes)
-                "nrelay1" -> nrelay(bytes)
-                "naddr1" -> naddr(bytes)
-                else -> null
-            }
-            parsed?.copy(additionalChars = additionalChars ?: "")
-        } catch (e: Throwable) {
-            Log.e("NIP19 Parser", "Issue trying to Decode NIP19 $key: ${e.message}", e)
-            null
-        }
-    }
-
-    private fun npub(bytes: ByteArray): Return {
-        return Return(Type.USER, bytes.toHexKey())
-    }
-
-    private fun note(bytes: ByteArray): Return {
-        return Return(Type.NOTE, bytes.toHexKey())
-    }
-
-    private fun nprofile(bytes: ByteArray): Return? {
-        val tlv = Tlv.parse(bytes)
-
-        val hex = tlv.get(Tlv.Type.SPECIAL.id)
-            ?.get(0)
-            ?.toHexKey() ?: return null
-
-        val relay = tlv.get(Tlv.Type.RELAY.id)
-            ?.get(0)
-            ?.toString(Charsets.UTF_8)
-
-        return Return(Type.USER, hex, relay)
-    }
-
-    private fun nevent(bytes: ByteArray): Return? {
-        val tlv = Tlv.parse(bytes)
-
-        val hex = tlv.get(Tlv.Type.SPECIAL.id)
-            ?.get(0)
-            ?.toHexKey() ?: return null
-
-        val relay = tlv.get(Tlv.Type.RELAY.id)
-            ?.get(0)
-            ?.toString(Charsets.UTF_8)
-
-        val author = tlv.get(Tlv.Type.AUTHOR.id)
-            ?.get(0)
-            ?.toHexKey()
-
-        val kind = tlv.get(Tlv.Type.KIND.id)
-            ?.get(0)
-            ?.let { Tlv.toInt32(it) }?.toLong()
-
-        return Return(Type.EVENT, hex, relay, author, kind)
-    }
-
-    private fun nrelay(bytes: ByteArray): Return? {
-        val relayUrl = Tlv.parse(bytes)
-            .get(Tlv.Type.SPECIAL.id)
-            ?.get(0)
-            ?.toString(Charsets.UTF_8) ?: return null
-
-        return Return(Type.RELAY, relayUrl)
-    }
-
-    private fun naddr(bytes: ByteArray): Return? {
-        val tlv = Tlv.parse(bytes)
-
-        val d = tlv.get(Tlv.Type.SPECIAL.id)
-            ?.get(0)
-            ?.toString(Charsets.UTF_8) ?: return null
-
-        val relay = tlv.get(Tlv.Type.RELAY.id)
-            ?.get(0)
-            ?.toString(Charsets.UTF_8)
-
-        val author = tlv.get(Tlv.Type.AUTHOR.id)
-            ?.get(0)
-            ?.toHexKey()
-
-        val kind = tlv.get(Tlv.Type.KIND.id)
-            ?.get(0)
-            ?.let { Tlv.toInt32(it) }?.toLong()
-
-        return Return(Type.ADDRESS, "$kind:$author:$d", relay, author, kind)
-    }
-
-    public fun createNEvent(idHex: String, author: String?, kind: Int?, relay: String?): String {
-        val kind = kind?.toByteArray()
-        val author = author?.toByteArray()
-        val idHex = idHex.toByteArray()
-        val relay = relay?.toByteArray(Charsets.UTF_8)
-
-        var fullArray = byteArrayOf(Tlv.Type.SPECIAL.id, idHex.size.toByte()) + idHex
-
-        if (relay != null) {
-            fullArray = fullArray + byteArrayOf(Tlv.Type.RELAY.id, relay.size.toByte()) + relay
-        }
-
-        if (author != null) {
-            fullArray = fullArray + byteArrayOf(Tlv.Type.AUTHOR.id, author.size.toByte()) + author
-        }
-
-        if (kind != null) {
-            fullArray = fullArray + byteArrayOf(Tlv.Type.KIND.id, kind.size.toByte()) + kind
-        }
-
-        return Bech32.encodeBytes(hrp = "nevent", fullArray, Bech32.Encoding.Bech32)
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/nip19/Tlv.kt

@@ -1,36 +0,0 @@
-package com.vitorpamplona.amethyst.service.nip19
-
-import java.nio.ByteBuffer
-import java.nio.ByteOrder
-
-object Tlv {
-    enum class Type(val id: Byte) {
-        SPECIAL(0),
-        RELAY(1),
-        AUTHOR(2),
-        KIND(3);
-    }
-
-    fun toInt32(bytes: ByteArray): Int {
-        require(bytes.size == 4) { "length must be 4, got: ${bytes.size}" }
-        return ByteBuffer.wrap(bytes, 0, 4).order(ByteOrder.BIG_ENDIAN).int
-    }
-
-    fun parse(data: ByteArray): Map<Byte, List<ByteArray>> {
-        val result = mutableMapOf<Byte, MutableList<ByteArray>>()
-        var rest = data
-        while (rest.isNotEmpty()) {
-            val t = rest[0]
-            val l = rest[1]
-            val v = rest.sliceArray(IntRange(2, (2 + l) - 1))
-            rest = rest.sliceArray(IntRange(2 + l, rest.size - 1))
-            if (v.size < l) continue
-
-            if (!result.containsKey(t)) {
-                result[t] = mutableListOf()
-            }
-            result[t]?.add(v)
-        }
-        return result
-    }
-}

app/src/main/java/com/vitorpamplona/amethyst/service/notifications/EventNotificationConsumer.kt

@@ -0,0 +1,180 @@
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.app.NotificationManager
+import android.content.Context
+import androidx.core.content.ContextCompat
+import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.sendDMNotification
+import com.vitorpamplona.amethyst.service.notifications.NotificationUtils.sendZapNotification
+import com.vitorpamplona.amethyst.ui.note.showAmount
+import com.vitorpamplona.quartz.encoders.toHexKey
+import com.vitorpamplona.quartz.events.ChatMessageEvent
+import com.vitorpamplona.quartz.events.ChatroomKey
+import com.vitorpamplona.quartz.events.Event
+import com.vitorpamplona.quartz.events.GiftWrapEvent
+import com.vitorpamplona.quartz.events.LnZapEvent
+import com.vitorpamplona.quartz.events.LnZapRequestEvent
+import com.vitorpamplona.quartz.events.PrivateDmEvent
+import com.vitorpamplona.quartz.events.SealedGossipEvent
+import kotlinx.collections.immutable.persistentSetOf
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+
+class EventNotificationConsumer(private val applicationContext: Context) {
+    fun consume(event: Event) {
+        val scope = CoroutineScope(Job() + Dispatchers.IO)
+        scope.launch {
+            if (LocalCache.notes[event.id] == null) {
+                if (LocalCache.justVerify(event)) {
+                    LocalCache.justConsume(event, null)
+
+                    val manager = notificationManager()
+                    if (manager.areNotificationsEnabled()) {
+                        when (event) {
+                            is PrivateDmEvent -> notify(event)
+                            is LnZapEvent -> notify(event)
+                            is GiftWrapEvent -> unwrapAndNotify(event)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    fun unwrapAndConsume(event: Event, account: Account): Event? {
+        if (!LocalCache.justVerify(event)) return null
+
+        return when (event) {
+            is GiftWrapEvent -> {
+                val key = account.keyPair.privKey ?: return null
+                event.cachedGift(key)?.let {
+                    unwrapAndConsume(it, account)
+                }
+            }
+            is SealedGossipEvent -> {
+                val key = account.keyPair.privKey ?: return null
+                event.cachedGossip(key)?.let {
+                    // this is not verifiable
+                    LocalCache.justConsume(it, null)
+                    it
+                }
+            }
+            else -> {
+                LocalCache.justConsume(event, null)
+                event
+            }
+        }
+    }
+
+    private fun unwrapAndNotify(giftWrap: GiftWrapEvent) {
+        val giftWrapNote = LocalCache.notes[giftWrap.id] ?: return
+
+        LocalPreferences.allSavedAccounts().forEach {
+            val acc = LocalPreferences.loadFromEncryptedStorage(it.npub)
+
+            if (acc != null && acc.userProfile().pubkeyHex == giftWrap.recipientPubKey()) {
+                val chatEvent = unwrapAndConsume(giftWrap, account = acc)
+
+                if (chatEvent is ChatMessageEvent && acc.keyPair.privKey != null) {
+                    val chatNote = LocalCache.notes[chatEvent.id] ?: return
+                    val chatRoom = chatEvent.chatroomKey(acc.keyPair.pubKey.toHexKey())
+
+                    val followingKeySet = acc.followingKeySet()
+
+                    val isKnownRoom = (
+                        acc.userProfile().privateChatrooms[chatRoom]?.senderIntersects(followingKeySet) == true ||
+                            acc.userProfile().hasSentMessagesTo(chatRoom)
+                        ) && !acc.isAllHidden(chatRoom.users)
+
+                    if (isKnownRoom) {
+                        val content = chatNote.event?.content() ?: ""
+                        val user = chatNote.author?.toBestDisplayName() ?: ""
+                        val userPicture = chatNote.author?.profilePicture()
+                        val noteUri = chatNote.toNEvent()
+                        notificationManager().sendDMNotification(chatEvent.id, content, user, userPicture, noteUri, applicationContext)
+                    }
+                }
+            }
+        }
+    }
+
+    private fun notify(event: PrivateDmEvent) {
+        val note = LocalCache.notes[event.id] ?: return
+
+        LocalPreferences.allSavedAccounts().forEach {
+            val acc = LocalPreferences.loadFromEncryptedStorage(it.npub)
+
+            if (acc != null && acc.userProfile().pubkeyHex == event.verifiedRecipientPubKey()) {
+                val followingKeySet = acc.followingKeySet()
+
+                val knownChatrooms = acc.userProfile().privateChatrooms.keys.filter {
+                    (
+                        acc.userProfile().privateChatrooms[it]?.senderIntersects(followingKeySet) == true ||
+                            acc.userProfile().hasSentMessagesTo(it)
+                        ) && !acc.isAllHidden(it.users)
+                }.toSet()
+
+                note.author?.let {
+                    if (ChatroomKey(persistentSetOf(it.pubkeyHex)) in knownChatrooms) {
+                        val content = acc.decryptContent(note) ?: ""
+                        val user = note.author?.toBestDisplayName() ?: ""
+                        val userPicture = note.author?.profilePicture()
+                        val noteUri = note.toNEvent()
+                        notificationManager().sendDMNotification(event.id, content, user, userPicture, noteUri, applicationContext)
+                    }
+                }
+            }
+        }
+    }
+
+    private fun notify(event: LnZapEvent) {
+        val noteZapEvent = LocalCache.notes[event.id] ?: return
+
+        val noteZapRequest = event.zapRequest?.id?.let { LocalCache.checkGetOrCreateNote(it) }
+        val noteZapped = event.zappedPost().firstOrNull()?.let { LocalCache.checkGetOrCreateNote(it) }
+
+        LocalPreferences.allSavedAccounts().forEach {
+            val acc = LocalPreferences.loadFromEncryptedStorage(it.npub)
+
+            if (acc != null && acc.userProfile().pubkeyHex == event.zappedAuthor().firstOrNull()) {
+                val amount = showAmount(event.amount)
+                val senderInfo = (noteZapRequest?.event as? LnZapRequestEvent)?.let {
+                    val decryptedContent = acc.decryptZapContentAuthor(noteZapRequest)
+                    if (decryptedContent != null) {
+                        val author = LocalCache.getOrCreateUser(decryptedContent.pubKey)
+                        Pair(author, decryptedContent.content)
+                    } else if (!noteZapRequest.event?.content().isNullOrBlank()) {
+                        Pair(noteZapRequest.author, noteZapRequest.event?.content())
+                    } else {
+                        Pair(noteZapRequest.author, null)
+                    }
+                }
+
+                val zappedContent =
+                    noteZapped?.let { it1 -> acc.decryptContent(it1)?.split("\n")?.get(0) }
+
+                val user = senderInfo?.first?.toBestDisplayName() ?: ""
+                var title = applicationContext.getString(R.string.app_notification_zaps_channel_message, amount)
+                senderInfo?.second?.ifBlank { null }?.let {
+                    title += " ($it)"
+                }
+                var content = applicationContext.getString(R.string.app_notification_zaps_channel_message_from, user)
+                zappedContent?.let {
+                    content += " " + applicationContext.getString(R.string.app_notification_zaps_channel_message_for, zappedContent)
+                }
+                val userPicture = senderInfo?.first?.profilePicture()
+                val noteUri = "nostr:Notifications"
+                notificationManager().sendZapNotification(event.id, content, title, userPicture, noteUri, applicationContext)
+            }
+        }
+    }
+
+    fun notificationManager(): NotificationManager {
+        return ContextCompat.getSystemService(applicationContext, NotificationManager::class.java) as NotificationManager
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/notifications/NotificationUtils.kt

@@ -0,0 +1,204 @@
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.graphics.drawable.BitmapDrawable
+import android.net.Uri
+import android.service.notification.StatusBarNotification
+import androidx.core.app.NotificationCompat
+import coil.ImageLoader
+import coil.executeBlocking
+import coil.request.ImageRequest
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.MainActivity
+
+object NotificationUtils {
+    private var dmChannel: NotificationChannel? = null
+    private var zapChannel: NotificationChannel? = null
+    private const val DM_GROUP_KEY = "com.vitorpamplona.amethyst.DM_NOTIFICATION"
+    private const val ZAP_GROUP_KEY = "com.vitorpamplona.amethyst.ZAP_NOTIFICATION"
+
+    fun NotificationManager.getOrCreateDMChannel(applicationContext: Context): NotificationChannel {
+        if (dmChannel != null) return dmChannel!!
+
+        dmChannel = NotificationChannel(
+            applicationContext.getString(R.string.app_notification_dms_channel_id),
+            applicationContext.getString(R.string.app_notification_dms_channel_name),
+            NotificationManager.IMPORTANCE_DEFAULT
+        ).apply {
+            description = applicationContext.getString(R.string.app_notification_dms_channel_description)
+        }
+
+        // Register the channel with the system
+        val notificationManager: NotificationManager =
+            applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        notificationManager.createNotificationChannel(dmChannel!!)
+
+        return dmChannel!!
+    }
+
+    fun NotificationManager.getOrCreateZapChannel(applicationContext: Context): NotificationChannel {
+        if (zapChannel != null) return zapChannel!!
+
+        zapChannel = NotificationChannel(
+            applicationContext.getString(R.string.app_notification_zaps_channel_id),
+            applicationContext.getString(R.string.app_notification_zaps_channel_name),
+            NotificationManager.IMPORTANCE_DEFAULT
+        ).apply {
+            description = applicationContext.getString(R.string.app_notification_zaps_channel_description)
+        }
+
+        // Register the channel with the system
+        val notificationManager: NotificationManager =
+            applicationContext.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        notificationManager.createNotificationChannel(zapChannel!!)
+
+        return zapChannel!!
+    }
+
+    fun NotificationManager.sendZapNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        applicationContext: Context
+    ) {
+        val zapChannel = getOrCreateZapChannel(applicationContext)
+        val channelId = applicationContext.getString(R.string.app_notification_zaps_channel_id)
+
+        sendNotification(id, messageBody, messageTitle, pictureUrl, uri, channelId, ZAP_GROUP_KEY, applicationContext)
+    }
+
+    fun NotificationManager.sendDMNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        applicationContext: Context
+    ) {
+        val dmChannel = getOrCreateDMChannel(applicationContext)
+        val channelId = applicationContext.getString(R.string.app_notification_dms_channel_id)
+
+        sendNotification(id, messageBody, messageTitle, pictureUrl, uri, channelId, DM_GROUP_KEY, applicationContext)
+    }
+
+    fun NotificationManager.sendNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        pictureUrl: String?,
+        uri: String,
+        channelId: String,
+        notificationGroupKey: String,
+        applicationContext: Context
+    ) {
+        if (pictureUrl != null) {
+            val request = ImageRequest.Builder(applicationContext)
+                .data(pictureUrl)
+                .build()
+
+            val imageLoader = ImageLoader(applicationContext)
+            val imageResult = imageLoader.executeBlocking(request)
+            sendNotification(
+                id = id,
+                messageBody = messageBody,
+                messageTitle = messageTitle,
+                picture = imageResult.drawable as? BitmapDrawable,
+                uri = uri,
+                channelId,
+                notificationGroupKey,
+                applicationContext = applicationContext
+            )
+        } else {
+            sendNotification(
+                id = id,
+                messageBody = messageBody,
+                messageTitle = messageTitle,
+                picture = null,
+                uri = uri,
+                channelId,
+                notificationGroupKey,
+                applicationContext = applicationContext
+            )
+        }
+    }
+
+    private fun NotificationManager.sendNotification(
+        id: String,
+        messageBody: String,
+        messageTitle: String,
+        picture: BitmapDrawable?,
+        uri: String,
+        channelId: String,
+        notificationGroupKey: String,
+        applicationContext: Context
+    ) {
+        val notId = id.hashCode()
+
+        // dont notify twice
+        val notifications: Array<StatusBarNotification> = getActiveNotifications()
+        for (notification in notifications) {
+            if (notification.id == notId) {
+                return
+            }
+        }
+
+        val contentIntent = Intent(applicationContext, MainActivity::class.java).apply {
+            data = Uri.parse(uri)
+        }
+
+        val contentPendingIntent = PendingIntent.getActivity(
+            applicationContext,
+            notId,
+            contentIntent,
+            PendingIntent.FLAG_MUTABLE
+        )
+
+        // Build the notification
+        val builderPublic = NotificationCompat.Builder(
+            applicationContext,
+            channelId
+        )
+            .setSmallIcon(R.drawable.amethyst)
+            .setContentTitle(messageTitle)
+            .setContentText(applicationContext.getString(R.string.app_notification_private_message))
+            .setLargeIcon(picture?.bitmap)
+            // .setGroup(messageTitle)
+            // .setGroup(notificationGroupKey) //-> Might need a Group summary as well before we activate this
+            .setContentIntent(contentPendingIntent)
+            .setPriority(NotificationCompat.PRIORITY_HIGH)
+            .setAutoCancel(true)
+
+        // Build the notification
+        val builder = NotificationCompat.Builder(
+            applicationContext,
+            channelId
+        )
+            .setSmallIcon(R.drawable.amethyst)
+            .setContentTitle(messageTitle)
+            .setContentText(messageBody)
+            .setLargeIcon(picture?.bitmap)
+            // .setGroup(messageTitle)
+            // .setGroup(notificationGroupKey)  //-> Might need a Group summary as well before we activate this
+            .setContentIntent(contentPendingIntent)
+            .setPublicVersion(builderPublic.build())
+            .setPriority(NotificationCompat.PRIORITY_HIGH)
+            .setAutoCancel(true)
+
+        notify(notId, builder.build())
+    }
+
+    /**
+     * Cancels all notifications.
+     */
+    fun NotificationManager.cancelNotifications() {
+        cancelAll()
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/notifications/RegisterAccounts.kt

@@ -0,0 +1,75 @@
+package com.vitorpamplona.amethyst.service.notifications
+
+import android.util.Log
+import com.vitorpamplona.amethyst.AccountInfo
+import com.vitorpamplona.amethyst.BuildConfig
+import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.service.HttpClient
+import com.vitorpamplona.quartz.events.RelayAuthEvent
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.Request
+import okhttp3.RequestBody.Companion.toRequestBody
+
+class RegisterAccounts(
+    private val accounts: List<AccountInfo>
+) {
+
+    // creates proof that it controls all accounts
+    private fun signEventsToProveControlOfAccounts(
+        accounts: List<AccountInfo>,
+        notificationToken: String
+    ): List<RelayAuthEvent> {
+        return accounts.mapNotNull {
+            val acc = LocalPreferences.loadFromEncryptedStorage(it.npub)
+            if (acc != null) {
+                val relayToUse = acc.activeRelays()?.firstOrNull { it.read }
+                if (relayToUse != null) {
+                    acc.createAuthEvent(relayToUse, notificationToken)
+                } else {
+                    null
+                }
+            } else {
+                null
+            }
+        }
+    }
+
+    private fun postRegistrationEvent(events: List<RelayAuthEvent>) {
+        try {
+            val jsonObject = """{
+                "events": [ ${events.joinToString(", ") { it.toJson() }} ]
+            }
+            """
+
+            val mediaType = "application/json; charset=utf-8".toMediaType()
+            val body = jsonObject.toRequestBody(mediaType)
+
+            val request = Request.Builder()
+                .header("User-Agent", "Amethyst/${BuildConfig.VERSION_NAME}")
+                .url("https://push.amethyst.social/register")
+                .post(body)
+                .build()
+
+            val client = HttpClient.getHttpClient()
+
+            val isSucess = client.newCall(request).execute().use {
+                it.isSuccessful
+            }
+        } catch (e: java.lang.Exception) {
+            Log.e("FirebaseMsgService", "Unable to register with push server", e)
+        }
+    }
+
+    fun go(notificationToken: String) {
+        val scope = CoroutineScope(Job() + Dispatchers.IO)
+        scope.launch {
+            postRegistrationEvent(
+                signEventsToProveControlOfAccounts(accounts, notificationToken)
+            )
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/previews/BahaUrlPreview.kt

@@ -0,0 +1,44 @@
+package com.vitorpamplona.amethyst.service.previews
+
+import android.net.Uri
+import kotlinx.coroutines.*
+import java.util.*
+
+class BahaUrlPreview(val url: String, var callback: IUrlPreviewCallback?) {
+    private val imageExtensionArray = arrayOf(".gif", ".png", ".jpg", ".jpeg", ".bmp", ".webp")
+
+    suspend fun fetchUrlPreview(timeOut: Int = 30000) = withContext(Dispatchers.IO) {
+        try {
+            fetch(timeOut)
+        } catch (t: Throwable) {
+            callback?.onFailed(t)
+        }
+    }
+
+    private suspend fun fetch(timeOut: Int = 30000) {
+        lateinit var urlInfoItem: UrlInfoItem
+        if (checkIsImageUrl()) {
+            urlInfoItem = UrlInfoItem(url = url, image = url)
+        } else {
+            val document = getDocument(url, timeOut)
+            urlInfoItem = parseHtml(url, document)
+        }
+        callback?.onComplete(urlInfoItem)
+    }
+
+    private fun checkIsImageUrl(): Boolean {
+        val uri = Uri.parse(url)
+        var isImage = false
+        for (imageExtension in imageExtensionArray) {
+            if (uri.path != null && uri.path!!.toLowerCase(Locale.getDefault()).endsWith(imageExtension)) {
+                isImage = true
+                break
+            }
+        }
+        return isImage
+    }
+
+    fun cleanUp() {
+        callback = null
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/previews/IUrlPreviewCallback.kt

@@ -0,0 +1,6 @@
+package com.vitorpamplona.amethyst.service.previews
+
+interface IUrlPreviewCallback {
+    suspend fun onComplete(urlInfo: UrlInfoItem)
+    suspend fun onFailed(throwable: Throwable)
+}