Revert "Optimize multi-repo detection: use lightweight database check, avoid network fetches"

This reverts commit e2cd3caa1e.

lib/providers/app_provider.dart

@@ -220,7 +220,6 @@ class AppProvider extends ChangeNotifier {
 
   /// Enriches a single app with repository information from all enabled repositories
   /// This is useful when displaying app details to show which repositories host the app
-  /// Only checks database - does not trigger network fetches for performance
   Future<FDroidApp> enrichAppWithRepositories(
     FDroidApp app,
     RepositoriesProvider? repositoriesProvider,
@@ -259,7 +258,6 @@ class AppProvider extends ChangeNotifier {
       }
 
       // Query all repositories in parallel for better performance
-      // Use lightweight database-only check - no network fetches
       final repoChecks = await Future.wait(
         enabledRepos.map((repo) async {
           try {
@@ -268,14 +266,14 @@ class AppProvider extends ChangeNotifier {
               return null;
             }
             
-            // Check if app exists in this repository's database (lightweight, no network)
-            final exists = await _apiService.hasAppInRepository(
-              app.packageName,
+            // Try to find the app in this repository via database
+            final results = await _apiService.searchAppsFromRepositoryUrl(
+              app.packageName, // Use exact package name for lookup
               repo.url,
             );
             
             // If found in this repository, return the source
-            if (exists) {
+            if (results.any((a) => a.packageName == app.packageName)) {
               return RepositorySource(name: repo.name, url: repo.url);
             }
           } catch (e) {

lib/services/database_service.dart

@@ -568,44 +568,6 @@ class DatabaseService {
     return apps;
   }
 
-  /// Checks if an app exists in a specific repository (database only, no network fetch)
-  /// Returns true if the app is found in the repository's database
-  Future<bool> hasAppInRepository(
-    String packageName,
-    String repositoryUrl,
-  ) async {
-    try {
-      final db = await database;
-
-      // Get repository ID by URL
-      final repoResults = await db.query(
-        _repositoriesTable,
-        columns: ['id'],
-        where: 'url = ?',
-        whereArgs: [repositoryUrl],
-      );
-
-      if (repoResults.isEmpty) {
-        return false; // Repository not found in database
-      }
-
-      final repositoryId = repoResults.first['id'] as int;
-
-      // Check if app exists in this repository
-      final appResults = await db.query(
-        _appsTable,
-        columns: ['package_name'],
-        where: 'package_name = ? AND repository_id = ?',
-        whereArgs: [packageName, repositoryId],
-        limit: 1,
-      );
-
-      return appResults.isNotEmpty;
-    } catch (e) {
-      return false;
-    }
-  }
-
   /// Searches apps by repository URL
   Future<List<FDroidApp>> searchAppsByRepository(
     String query,

lib/services/fdroid_api_service.dart

@@ -517,17 +517,6 @@ class FDroidApiService {
     }
   }
 
-  /// Checks if an app exists in a specific repository (database only, no network fetch)
-  Future<bool> hasAppInRepository(
-    String packageName,
-    String repositoryUrl,
-  ) async {
-    return await _databaseService.hasAppInRepository(
-      packageName,
-      repositoryUrl,
-    );
-  }
-
   /// Fetches all available categories
   Future<List<String>> fetchCategories() async {
     try {