feat: global NDK with account

lib/controllers/home_controller.dart

@@ -10,8 +10,6 @@ import 'package:flutter/services.dart';
 import 'package:flutter_dropzone/flutter_dropzone.dart';
 import 'package:get/get.dart';
 import 'package:mime/mime.dart';
-import 'package:ndk/data_layer/repositories/verifiers/bip340_event_verifier.dart';
-import 'package:ndk_flutter/ndk_flutter.dart';
 import 'package:toastification/toastification.dart';
 
 class HomePageController extends GetxController {
@@ -69,10 +67,10 @@ class HomePageController extends GetxController {
       );
 
       final sharedFile = await shareFile(
+        ndk: Get.find(),
         bytes: bytes,
         contentType: mimeType,
         filename: filename,
-        eventVerifier: kIsWeb ? WebEventVerifier() : Bip340EventVerifier(),
       );
 
       _sharedFile.value = sharedFile;
@@ -119,10 +117,10 @@ class HomePageController extends GetxController {
       );
 
       final sharedFile = await shareFile(
+        ndk: Get.find(),
         bytes: file.bytes!,
         contentType: mimeType,
         filename: file.name,
-        eventVerifier: kIsWeb ? WebEventVerifier() : Bip340EventVerifier(),
       );
 
       _sharedFile.value = sharedFile;

lib/main.dart

@@ -7,10 +7,11 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:ndk/ndk.dart';
+import 'package:ndk/shared/nips/nip01/bip340.dart';
 import 'package:ndk_flutter/ndk_flutter.dart';
 import 'package:toastification/toastification.dart';
 
-void main() {
+void main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
   final ndk = Ndk(
@@ -19,9 +20,21 @@ void main() {
       cache: MemCacheManager(),
     ),
   );
-
   Get.put(ndk);
 
+  final ndkFlutter = NdkFlutter(ndk: ndk);
+  Get.put(ndkFlutter);
+
+  await ndkFlutter.restoreAccountsState();
+
+  if (ndk.accounts.accounts.isEmpty) {
+    final keyPair = Bip340.generatePrivateKey();
+    ndk.accounts.loginPrivateKey(
+      pubkey: keyPair.publicKey,
+      privkey: keyPair.privateKey!,
+    );
+  }
+
   runApp(const MainApp());
 }
 

packages/file_transfer_sdk/lib/src/functions/share_file.dart

@@ -10,24 +10,11 @@ import 'package:ndk/ndk.dart';
 import 'package:ndk/shared/nips/nip01/bip340.dart';
 
 Future<SharedFile> shareFile({
+  required Ndk ndk,
   required Uint8List bytes,
   String? contentType,
   String? filename,
-  EventVerifier? eventVerifier,
 }) async {
-  final ndk = Ndk(
-    NdkConfig(
-      eventVerifier: eventVerifier ?? Bip340EventVerifier(),
-      cache: MemCacheManager(),
-    ),
-  );
-
-  final keyPair = Bip340.generatePrivateKey();
-  ndk.accounts.loginPrivateKey(
-    pubkey: keyPair.publicKey,
-    privkey: keyPair.privateKey!,
-  );
-
   final recipientKeyPair = Bip340.generatePrivateKey();
 
   final encryptedBlob = await encryptBlob(bytes);