// Author: fruit.com.cn

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/app.dart';
import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/data/models/watch_progress.dart';
import 'package:fruitshorts/core/data/repositories/favorite_repository.dart';
import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';

import '../support/fake_catalog.dart';
import '../support/fake_category.dart';
import '../support/fake_interaction_repositories.dart';
import '../support/widget_player.dart';

void main() {
  testWidgets('should_render_following_tabs_grid_and_edit_actions', (
    tester,
  ) async {
    _signIn();
    final catalog = FakeCatalogRepository();
    await tester.pumpWidget(
      _app(
        catalog: catalog,
        favorites: InMemoryFavoriteRepository(
          cards: catalog.dramas.take(1).toList(),
          saved: {catalog.dramas.first.id},
        ),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('tab-follow')));
    await tester.pumpAndSettle();

    expect(find.byKey(const Key('following-page')), findsOneWidget);
    expect(find.byKey(const Key('following-tab-favorites')), findsOneWidget);
    expect(find.byKey(const Key('following-tab-history')), findsOneWidget);
    expect(find.byKey(const Key('following-tab-reserve')), findsOneWidget);
    expect(find.byKey(const Key('following-favorites-grid')), findsOneWidget);
    expect(find.byType(CustomScrollView), findsWidgets);

    await tester.tap(find.byKey(const Key('following-edit')));
    await tester.pumpAndSettle();
    expect(
      find.byKey(const Key('following-remove-the-signal-demo')),
      findsOneWidget,
    );

    await tester.tap(find.byKey(const Key('following-remove-the-signal-demo')));
    await tester.pumpAndSettle();
    expect(find.byType(AlertDialog), findsOneWidget);
    await tester.tap(
      find.descendant(
        of: find.byType(AlertDialog),
        matching: find.byType(FilledButton),
      ),
    );
    await tester.pumpAndSettle();

    expect(
      find.byKey(const Key('following-remove-the-signal-demo')),
      findsNothing,
    );
    expect(find.byIcon(Icons.edit_outlined), findsOneWidget);
    expect(
      find.byKey(const Key('following-card-the-signal-demo')),
      findsNothing,
    );

    await tester.tap(find.byKey(const Key('following-tab-history')));
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('following-history-empty')), findsOneWidget);
    await tester.tap(find.byKey(const Key('following-tab-reserve')));
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('following-reserve-empty')), findsOneWidget);
  });

  testWidgets('should_show_auth_gate_when_signed_out', (tester) async {
    SharedPreferencesAsyncPlatform.instance =
        InMemorySharedPreferencesAsync.empty();
    await tester.pumpWidget(_app(catalog: FakeCatalogRepository()));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('tab-follow')));
    await tester.pumpAndSettle();

    expect(find.byKey(const Key('auth-gate-panel')), findsOneWidget);
    expect(find.byKey(const Key('following-favorites-grid')), findsNothing);
  });

  testWidgets('should_show_empty_favorites_and_history', (tester) async {
    _signIn();
    await tester.pumpWidget(_app(catalog: FakeCatalogRepository()));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('tab-follow')));
    await tester.pumpAndSettle();

    expect(find.byKey(const Key('following-favorites-empty')), findsOneWidget);
    await tester.tap(find.byKey(const Key('following-tab-history')));
    await tester.pumpAndSettle();
    expect(find.byKey(const Key('following-history-empty')), findsOneWidget);
  });

  testWidgets('should_render_history_metadata_without_detail_fetch', (
    tester,
  ) async {
    _signIn();
    final catalog = _CountingCatalogRepository();
    await tester.pumpWidget(
      _app(
        catalog: catalog,
        history: InMemoryWatchHistoryRepository(
          seed: [
            WatchProgress(
              dramaId: 'the-signal-demo',
              episodeId: 'the-signal-demo-3',
              dramaTitle: 'Server title',
              dramaCover: '/files/server-cover.jpg',
              episodeNumber: 3,
              totalEpisodes: 8,
              position: const Duration(seconds: 25),
              duration: const Duration(seconds: 100),
            ),
          ],
        ),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('tab-follow')));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('following-tab-history')));
    await tester.pumpAndSettle();

    expect(find.text('Server title'), findsOneWidget);
    expect(find.text('Watched to Episode 3'), findsOneWidget);
    expect(
      find.byKey(const Key('following-progress-the-signal-demo')),
      findsOneWidget,
    );
    expect(catalog.detailFetches, 0);
  });

  testWidgets('should_reset_edit_state_when_switching_tabs', (tester) async {
    _signIn();
    final catalog = FakeCatalogRepository();
    await tester.pumpWidget(
      _app(
        catalog: catalog,
        favorites: InMemoryFavoriteRepository(
          cards: catalog.dramas,
          saved: catalog.dramas.map((drama) => drama.id).toSet(),
        ),
      ),
    );
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('tab-follow')));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('following-edit')));
    await tester.pumpAndSettle();

    await tester.tap(find.byKey(const Key('following-tab-history')));
    await tester.pumpAndSettle();
    await tester.tap(find.byKey(const Key('following-tab-favorites')));
    await tester.pumpAndSettle();

    expect(
      find.byKey(const Key('following-card-the-signal-demo')),
      findsOneWidget,
    );
    expect(find.byIcon(Icons.edit_outlined), findsOneWidget);
  });
}

void _signIn() {
  SharedPreferencesAsyncPlatform.instance =
      InMemorySharedPreferencesAsync.withData({
        'auth.accessToken': 'access',
        'auth.refreshToken': 'refresh',
        'auth.user': '{"uid":"9","nickname":"Viewer","avatarUrl":""}',
      });
}

Widget _app({
  required FakeCatalogRepository catalog,
  FavoriteRepository? favorites,
  WatchHistoryRepository? history,
}) {
  return LumaDramaApp(
    playerFactory: createWidgetPlayer,
    catalogRepository: catalog,
    categoryRepository: FakeCategoryRepository(catalog: catalog),
    watchHistoryRepository: history ?? InMemoryWatchHistoryRepository(),
    favoriteRepository: favorites ?? InMemoryFavoriteRepository(),
    playbackRepository: FakePlaybackRepository(),
    commentRepository: FakeCommentRepository(),
    interactionRepository: FakeInteractionRepository(),
  );
}

class _CountingCatalogRepository extends FakeCatalogRepository {
  int detailFetches = 0;

  @override
  Future<Drama> fetchDrama(String dramaId) {
    detailFetches += 1;
    return super.fetchDrama(dramaId);
  }
}