import 'package:get_it/get_it.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../../features/settings/presentation/viewmodels/settings_viewmodel.dart';
import '../../features/tasks/presentation/viewmodels/daily_tasks_viewmodel.dart';
import '../../features/tasks/presentation/viewmodels/task_form_viewmodel.dart';
import '../../features/tasks/domain/repositories/task_repository.dart';
import '../../features/tasks/data/repositories/task_repository_impl.dart';
import '../../features/tasks/data/datasources/task_remote_datasource.dart';
import '../../features/settings/data/settings_local_datasource.dart';
import '../logging/app_logger.dart';

final getIt = GetIt.instance;

Future<void> init() async {
  // External
  final sharedPreferences = await SharedPreferences.getInstance();
  getIt.registerSingleton<SharedPreferences>(sharedPreferences);

  // Logger
  getIt.registerSingleton<AppLogger>(AppLogger());

  // Data sources
  getIt.registerLazySingleton<TaskRemoteDataSource>(
    () => TaskRemoteDataSourceImpl(logger: getIt()),
  );
  getIt.registerLazySingleton<SettingsLocalDataSource>(
    () => SettingsLocalDataSourceImpl(sharedPreferences: getIt()),
  );

  // Repositories
  getIt.registerLazySingleton<TaskRepository>(
    () => TaskRepositoryImpl(remoteDataSource: getIt(), logger: getIt()),
  );

  // ViewModels
  getIt.registerFactory<DailyTasksViewModel>(
    () => DailyTasksViewModel(repository: getIt(), logger: getIt()),
  );
  getIt.registerFactory<TaskFormViewModel>(
    () => TaskFormViewModel(repository: getIt(), logger: getIt()),
  );
  getIt.registerLazySingleton<SettingsViewModel>(
    () => SettingsViewModel(dataSource: getIt(), logger: getIt()),
  );
}