ADD ALOT OF POLISHING AND UPDATES...

walkguide-mobile/walkguide_app/lib/features/auth/data/auth_repository_impl.dart

@@ -12,19 +12,34 @@ class AuthRepositoryImpl implements AuthRepository {
   AuthRepositoryImpl(this.remoteDataSource, this.secureStorage);
 
   @override
-  Future<Either<Failure, UserEntity>> login(String email, String password) async {
+  Future<Either<Failure, UserEntity>> login(
+      String email, String password) async {
     try {
       // 1. Suruh data source nembak API
       final userModel = await remoteDataSource.login(email, password);
-      
+
       // 2. Simpan token langsung ke HP biar UI gausah ribet
       await secureStorage.saveToken(userModel.token);
-      
+
       // 3. Balikin data sukses (Right)
       return Right(userModel);
     } catch (e) {
       // 4. Balikin pesan error (Left)
-      return Left(ServerFailure(e.toString().replaceAll('Exception: ', '')));
+      return Left(ServerFailure(_safeAuthFailure(e)));
     }
   }
-}
+}
+
+String _safeAuthFailure(Object error) {
+  final message = error.toString().replaceFirst(RegExp(r'^\w+:\s*'), '').trim();
+  final lower = message.toLowerCase();
+  final technical = lower.contains('exception') ||
+      lower.contains('typeerror') ||
+      lower.contains('stacktrace') ||
+      lower.contains('instance of') ||
+      lower.contains('package:');
+  if (message.isEmpty || technical) {
+    return 'Login gagal. Periksa email dan password kamu.';
+  }
+  return message;
+}