chore(mobile): refactor authentication (#14322)

mobile/lib/services/auth.service.dart

@@ -0,0 +1,96 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/entities/store.entity.dart';
+import 'package:immich_mobile/interfaces/auth.interface.dart';
+import 'package:immich_mobile/interfaces/auth_api.interface.dart';
+import 'package:immich_mobile/models/auth/login_response.model.dart';
+import 'package:immich_mobile/providers/api.provider.dart';
+import 'package:immich_mobile/repositories/auth.repository.dart';
+import 'package:immich_mobile/repositories/auth_api.repository.dart';
+import 'package:immich_mobile/services/api.service.dart';
+import 'package:logging/logging.dart';
+
+final authServiceProvider = Provider(
+  (ref) => AuthService(
+    ref.watch(authApiRepositoryProvider),
+    ref.watch(authRepositoryProvider),
+    ref.watch(apiServiceProvider),
+  ),
+);
+
+class AuthService {
+  final IAuthApiRepository _authApiRepository;
+  final IAuthRepository _authRepository;
+  final ApiService _apiService;
+
+  final _log = Logger("AuthService");
+
+  AuthService(
+    this._authApiRepository,
+    this._authRepository,
+    this._apiService,
+  );
+
+  /// Validates the provided server URL by resolving and setting the endpoint.
+  /// Also sets the device info header and stores the valid URL.
+  ///
+  /// [url] - The server URL to be validated.
+  ///
+  /// Returns the validated and resolved server URL as a [String].
+  ///
+  /// Throws an exception if the URL cannot be resolved or set.
+  Future<String> validateServerUrl(String url) async {
+    final validUrl = await _apiService.resolveAndSetEndpoint(url);
+    await _apiService.setDeviceInfoHeader();
+    Store.put(StoreKey.serverUrl, validUrl);
+
+    return validUrl;
+  }
+
+  Future<LoginResponse> login(String email, String password) {
+    return _authApiRepository.login(email, password);
+  }
+
+  /// Performs user logout operation by making a server request and clearing local data.
+  ///
+  /// This method attempts to log out the user through the authentication API repository.
+  /// If the server request fails, the error is logged but local data is still cleared.
+  /// The local data cleanup is guaranteed to execute regardless of the server request outcome.
+  ///
+  /// Throws any unhandled exceptions from the API request or local data clearing operations.
+  Future<void> logout() async {
+    try {
+      await _authApiRepository.logout();
+    } catch (error, stackTrace) {
+      _log.severe("Error logging out", error, stackTrace);
+    } finally {
+      await clearLocalData();
+    }
+  }
+
+  /// Clears all local authentication-related data.
+  ///
+  /// This method performs a concurrent deletion of:
+  /// - Authentication repository data
+  /// - Current user information
+  /// - Access token
+  /// - Asset ETag
+  ///
+  /// All deletions are executed in parallel using [Future.wait].
+  Future<void> clearLocalData() {
+    return Future.wait([
+      _authRepository.clearLocalData(),
+      Store.delete(StoreKey.currentUser),
+      Store.delete(StoreKey.accessToken),
+      Store.delete(StoreKey.assetETag),
+    ]);
+  }
+
+  Future<void> changePassword(String newPassword) {
+    try {
+      return _authApiRepository.changePassword(newPassword);
+    } catch (error, stackTrace) {
+      _log.severe("Error changing password", error, stackTrace);
+      rethrow;
+    }
+  }
+}