Clean Arch Patterns

Yeni Feature Olusturma Sirasi

1. lib/features/[name]/domain/entities/ - Entity (freezed, saf Dart)
2. lib/features/[name]/domain/repositories/ - Abstract repository
3. lib/features/[name]/data/models/ - Model (freezed + json_serializable)
4. lib/features/[name]/data/datasources/ - Remote/local datasource
5. lib/features/[name]/data/repositories/ - Repository impl
6. lib/features/[name]/presentation/providers/ - Riverpod provider
7. lib/features/[name]/presentation/screens/ - Ekran
8. lib/features/[name]/presentation/widgets/ - Widget
9. dart run build_runner build --delete-conflicting-outputs
10. Test yaz

Katman Kurallari

• Domain: SADECE Dart, Flutter import YASAK. Entity + abstract repo.
• Data: Model (DTO), datasource, repo implementasyonu. Dio, Hive vs burada.
• Presentation: Provider, screen, widget. Riverpod burada.
• Core: Paylasilan (network, storage, error, widget). Feature'lar arasi kopru.

Abstract Repository

abstract class UserRepository {
  Future<User> getById(String id);
  Future<List<User>> getAll();
  Future<void> create(User user);
  Future<void> update(User user);
  Future<void> delete(String id);
}

Repository Implementation

class UserRepositoryImpl implements UserRepository {
  final UserRemoteDataSource _remote;
  final UserLocalDataSource _local;

  UserRepositoryImpl(this._remote, this._local);

  @override
  Future<User> getById(String id) async {
    try {
      final model = await _remote.getUser(id);
      await _local.cacheUser(model);
      return model.toEntity();
    } catch (e) {
      final cached = await _local.getCachedUser(id);
      if (cached != null) return cached.toEntity();
      rethrow;
    }
  }
}

Model -> Entity Donusumu

extension UserModelX on UserModel {
  User toEntity() => User(id: id, name: name, email: email);
}

extension UserX on User {
  UserModel toModel() => UserModel(id: id, name: name, email: email);
}