import 'package:flutter_test/flutter_test.dart';
import 'package:bookshelf_flutter/features/home/bloc/home_bloc.dart';
import 'package:bookshelf_flutter/features/home/bloc/home_event.dart';
import 'package:bookshelf_flutter/features/home/bloc/home_state.dart';
import 'package:bookshelf_flutter/models/models.dart';

void main() {
  group('HomeBloc', () {
    late HomeBloc homeBloc;

    setUp(() {
      homeBloc = HomeBloc();
    });

    tearDown(() {
      homeBloc.close();
    });

    test('initial state is HomeState.initial()', () {
      expect(homeBloc.state, isA<HomeState>());
      expect(homeBloc.state.isLoading, true);
    });

    group('LoadHomeData', () {
      test('loads home data with default screen', () async {
        homeBloc.add(const LoadHomeData());
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.library);
        expect(homeBloc.state.isLoading, false);
      });
    });

    group('NavigateToScreen', () {
      test('navigates to library screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.library));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.library);
      });

      test('navigates to categories screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.categories));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.categories);
      });

      test('navigates to wishlist screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.wishlist));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.wishlist);
      });

      test('navigates to settings screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.settings));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.settings);
      });

      test('navigates to details screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.details));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.details);
      });

      test('navigates to add book screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.addBook));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.addBook);
      });

      test('navigates to scanner screen', () async {
        homeBloc.add(const NavigateToScreen(AppScreen.scanner));
        await Future.delayed(Duration.zero);

        expect(homeBloc.state.currentScreen, AppScreen.scanner);
      });
    });
  });
}