import 'package:benchmark_di/scenarios/universal_binding_mode.dart';
import 'package:benchmark_di/scenarios/universal_scenario.dart';
import 'package:benchmark_di/scenarios/universal_service.dart';
import 'package:kiwi/kiwi.dart';
import 'di_adapter.dart';

/// DIAdapter-для KiwiContainer с поддержкой universal benchmark сценариев.
class KiwiAdapter extends DIAdapter<KiwiContainer> {
  late KiwiContainer _container;
  final bool _isSubScope;

  KiwiAdapter({KiwiContainer? container, bool isSubScope = false})
      : _isSubScope = isSubScope {
    _container = container ?? KiwiContainer();
  }

  @override
  void setupDependencies(void Function(KiwiContainer container) registration) {
    registration(_container);
  }

@override
Registration<KiwiContainer> universalRegistration<S extends Enum>({
  required S scenario,
  required int chainCount,
  required int nestingDepth,
  required UniversalBindingMode bindingMode,
}) {
  if (scenario is UniversalScenario) {
    if (scenario == UniversalScenario.asyncChain ||
        bindingMode == UniversalBindingMode.asyncStrategy) {
      throw UnsupportedError('Kiwi does not support async dependencies or async binding scenarios.');
    }
    return (container) {
      switch (scenario) {
        case UniversalScenario.asyncChain:
          break;
        case UniversalScenario.register:
          container.registerSingleton<UniversalService>(
            (c) => UniversalServiceImpl(value: 'reg', dependency: null),
          );
          break;
        case UniversalScenario.named:
          container.registerFactory<UniversalService>(
            (c) => UniversalServiceImpl(value: 'impl1'), name: 'impl1');
          container.registerFactory<UniversalService>(
            (c) => UniversalServiceImpl(value: 'impl2'), name: 'impl2');
          break;
        case UniversalScenario.chain:
          for (int chain = 1; chain <= chainCount; chain++) {
            for (int level = 1; level <= nestingDepth; level++) {
              final prevDepName = '${chain}_${level - 1}';
              final depName = '${chain}_$level';
              switch (bindingMode) {
                case UniversalBindingMode.singletonStrategy:
                  container.registerSingleton<UniversalService>(
                    (c) => UniversalServiceImpl(
                      value: depName,
                      dependency: level > 1
                        ? c.resolve<UniversalService>(prevDepName)
                        : null),
                    name: depName);
                  break;
                case UniversalBindingMode.factoryStrategy:
                  container.registerFactory<UniversalService>(
                    (c) => UniversalServiceImpl(
                      value: depName,
                      dependency: level > 1
                        ? c.resolve<UniversalService>(prevDepName)
                        : null),
                    name: depName);
                  break;
                case UniversalBindingMode.asyncStrategy:
                  // Не поддерживается
                  break;
              }
            }
          }
          final depName = '${chainCount}_$nestingDepth';
          container.registerSingleton<UniversalService>(
            (c) => c.resolve<UniversalService>(depName));
          break;
        case UniversalScenario.override:
          final depName = '${chainCount}_$nestingDepth';
          container.registerSingleton<UniversalService>(
            (c) => c.resolve<UniversalService>(depName));
          break;
      }
    };
  }
  throw UnsupportedError('Scenario $scenario not supported by KiwiAdapter');
}

  @override
  T resolve<T extends Object>({String? named}) {
    // Для asyncChain нужен resolve<Future<T>>
    if (T.toString().startsWith('Future<')) {
      return _container.resolve<T>(named);
    } else {
      return _container.resolve<T>(named);
    }
  }

  @override
  Future<T> resolveAsync<T extends Object>({String? named}) async {
    if (T.toString().startsWith('Future<')) {
      // resolve<Future<T>>, unwrap result
      return Future.value(_container.resolve<T>(named));
    } else {
      // Для совместимости с chain/override
      return Future.value(_container.resolve<T>(named));
    }
  }

  @override
  void teardown() {
    _container.clear();
  }

  @override
  KiwiAdapter openSubScope(String name) {
    // Возвращаем новый scoped контейнер (отдельный). Наследование не реализовано.
    return KiwiAdapter(container: KiwiContainer.scoped(), isSubScope: true);
  }

  @override
  Future<void> waitForAsyncReady() async {}
}