import 'package:cardash_launcher/core/theme/app_theme.dart';
import 'package:cardash_launcher/data/models/jellyfin_library.dart';
import 'package:cardash_launcher/data/models/jellyfin_models.dart';
import 'package:cardash_launcher/data/services/jellyfin_library_service.dart';
import 'package:cardash_launcher/features/jellyfin/jellyfin_dashboard_screen.dart';
import 'package:cardash_launcher/features/jellyfin/jellyfin_playback_controller.dart';
import 'package:cardash_launcher/features/settings/jellyfin_controller.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:provider/provider.dart';

import 'jellyfin_fakes.dart';

class _Fixture {
  _Fixture({
    required this.jellyfin,
    required this.gateway,
    required this.library,
    required this.playback,
  });

  final JellyfinController jellyfin;
  final FakeJellyfinLibraryGateway gateway;
  final JellyfinLibraryService library;
  final JellyfinPlaybackController playback;
}

Future<_Fixture> _fixture({List<String> genres = const ['metal']}) async {
  final jellyfin = await configuredJellyfinController();
  await jellyfin.setGenreSelections([
    for (final id in genres) JellyfinGenreSelection(id: id, label: id),
  ]);
  final gateway = FakeJellyfinLibraryGateway()
    ..played = [
      track('a2', albumId: 'album-a', albumName: 'Album A'),
      track('a1', albumId: 'album-a', albumName: 'Album A'),
      track('b1', albumId: 'album-b', albumName: 'Album B'),
      track('c1', albumId: 'album-c', albumName: 'Album C'),
      track('d1', albumId: 'album-d', albumName: 'Album D'),
      track('e1', albumId: 'album-e', albumName: 'Album E'),
      track('f1', albumId: 'album-f', albumName: 'Album F'),
    ]
    ..added = [
      album('new-1'),
      album('new-2'),
      album('new-3'),
      album('new-4'),
      album('new-5'),
      album('new-6'),
    ]
    ..random = [
      album('r1'),
      album('r2'),
      album('r3'),
      album('r4'),
      album('r5'),
      album('r6'),
    ]
    ..genres = const ['Metal', 'Jazz'];
  final library = testLibraryService(jellyfin, gateway);
  final playback = JellyfinPlaybackController(
    FakeJellyfinPlaybackPlatform(),
    library,
    jellyfin,
    pollInterval: const Duration(hours: 1),
  );
  return _Fixture(
    jellyfin: jellyfin,
    gateway: gateway,
    library: library,
    playback: playback,
  );
}

Future<void> _pump(WidgetTester tester, _Fixture fixture) async {
  await tester.binding.setSurfaceSize(const Size(1280, 800));
  addTearDown(() => tester.binding.setSurfaceSize(null));
  addTearDown(fixture.playback.dispose);
  addTearDown(fixture.jellyfin.dispose);

  await tester.pumpWidget(
    MultiProvider(
      providers: [
        Provider<JellyfinLibraryService>.value(value: fixture.library),
        ChangeNotifierProvider<JellyfinController>.value(
          value: fixture.jellyfin,
        ),
        ChangeNotifierProvider<JellyfinPlaybackController>.value(
          value: fixture.playback,
        ),
      ],
      child: MaterialApp(
        theme: AppTheme.light(),
        home: const JellyfinDashboardScreen(),
      ),
    ),
  );
  await tester.pumpAndSettle();
}

void main() {
  testWidgets('renders six cards per row on a wide screen', (tester) async {
    final fixture = await _fixture();
    await _pump(tester, fixture);

    expect(find.text('Recently played'), findsOneWidget);
    expect(find.text('Recently added'), findsOneWidget);
    expect(find.text('Random'), findsOneWidget);
    expect(find.text('Artists'), findsOneWidget);
    expect(find.text('Album A'), findsWidgets);
    expect(find.text('Album F'), findsOneWidget);
    expect(find.text('Album new-1'), findsOneWidget);
    expect(find.text('Album new-6'), findsOneWidget);
    expect(find.text('Album r1'), findsOneWidget);
    expect(find.text('Album r6'), findsOneWidget);
    expect(find.bySemanticsLabel('Shuffle random albums'), findsOneWidget);
    expect(tester.takeException(), isNull);
  });

  testWidgets('shows the genre prompt when no genres are selected', (
    tester,
  ) async {
    final fixture = await _fixture(genres: const []);
    await _pump(tester, fixture);

    expect(find.text('Choose up to 5 genres in Settings.'), findsOneWidget);
    expect(find.bySemanticsLabel('Shuffle random albums'), findsNothing);
    expect(fixture.gateway.randomCalls, 0);
  });

  testWidgets('shows an inline error with retry when the server fails', (
    tester,
  ) async {
    final fixture = await _fixture();
    fixture.gateway.error = JellyfinUnreachable('offline');
    await _pump(tester, fixture);

    expect(
      find.text('Jellyfin is unreachable. Check the server and try again.'),
      findsOneWidget,
    );
    expect(find.text('Retry'), findsOneWidget);
    expect(find.bySemanticsLabel('Shuffle random albums'), findsNothing);
  });
}