Enhance video playback cubit resilience and K-12 curriculum flow

2026-08-31 17:46:03 +03:00
parent 78b703f625
commit d8a50bb105
34 changed files with 2934 additions and 75 deletions
@@ -0,0 +1,67 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import '../utils/app_logger.dart';
+
+/// Ultra-Resilient Storage Service for Admin App
+class StorageService {
+  final FlutterSecureStorage _secureStorage;
+
+  StorageService({FlutterSecureStorage? secureStorage})
+      : _secureStorage = secureStorage ??
+            const FlutterSecureStorage(
+              mOptions: MacOsOptions(
+                accessibility: KeychainAccessibility.first_unlock,
+              ),
+              aOptions: AndroidOptions(
+                encryptedSharedPreferences: true,
+              ),
+            );
+
+  static const String _keyToken = 'saqel_admin_jwt_token';
+  static const String _keyUser = 'saqel_admin_user_data';
+
+  Future<void> _writeSafe(String key, String value) async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(key, value);
+    } catch (e) {
+      AppLogger.log('Prefs write notice ($key): $e', tag: 'STORAGE');
+    }
+
+    try {
+      await _secureStorage.write(key: key, value: value);
+    } on PlatformException catch (e) {
+      AppLogger.log('Keychain notice ($key): ${e.message}', tag: 'STORAGE');
+    } catch (_) {}
+  }
+
+  Future<String?> _readSafe(String key) async {
+    try {
+      final val = await _secureStorage.read(key: key);
+      if (val != null && val.isNotEmpty) return val;
+    } catch (_) {}
+
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      return prefs.getString(key);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  Future<void> saveToken(String token) async => await _writeSafe(_keyToken, token);
+  Future<String?> getToken() async => await _readSafe(_keyToken);
+
+  Future<void> clearSession() async {
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.remove(_keyToken);
+      await prefs.remove(_keyUser);
+    } catch (_) {}
+    try {
+      await _secureStorage.delete(key: _keyToken);
+      await _secureStorage.delete(key: _keyUser);
+    } catch (_) {}
+  }
+}