import 'dart:typed_data';

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:flutter_test/flutter_test.dart';

import 'jellyfin_fakes.dart';

void main() {
  test(
    'recently played dedupes tracks by album and takes the newest five',
    () async {
      final gateway = FakeJellyfinLibraryGateway()
        ..played = [
          track(
            'a2',
            albumId: 'album-a',
            albumName: 'Album A',
            artist: 'Artist A',
            lastPlayed: DateTime.utc(2026, 10, 31, 12),
          ),
          track(
            'a1',
            albumId: 'album-a',
            albumName: 'Album A',
            artist: 'Artist A',
            lastPlayed: DateTime.utc(2026, 10, 31, 11),
          ),
          track('b1', albumId: 'album-b', albumName: 'Album B', artist: 'B'),
          track('c1', albumId: 'album-c', albumName: 'Album C', artist: 'C'),
          track('d1', albumId: 'album-d', albumName: 'Album D', artist: 'D'),
          track('e1', albumId: 'album-e', albumName: 'Album E', artist: 'E'),
          track('f1', albumId: 'album-f', albumName: 'Album F', artist: 'F'),
        ];
      final service = JellyfinLibraryService(
        connectionProvider: () => testJellyfinConnection,
        gateway: gateway,
      );

      final albums = await service.latestPlayed();

      expect(albums.map((album) => album.id), [
        'album-a',
        'album-b',
        'album-c',
        'album-d',
        'album-e',
      ]);
      expect(albums.first.name, 'Album A');
      expect(albums.first.lastPlayed, DateTime.utc(2026, 10, 31, 12));
      expect(gateway.playedCalls, 1);
    },
  );

  test('latest added delegates to the album query', () async {
    final gateway = FakeJellyfinLibraryGateway()
      ..added = [album('one'), album('two')];
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );

    final albums = await service.latestAdded(limit: 2);

    expect(albums.map((entry) => entry.id), ['one', 'two']);
    expect(gateway.addedCalls, 1);
  });

  test('genre families are cached and can be forced', () async {
    final gateway = FakeJellyfinLibraryGateway()
      ..genres = const ['Metal', 'Jazz', 'Рок'];
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );

    final first = await service.genreFamilies();
    expect(first.map((family) => family.label), ['Metal', 'Rock', 'Jazz']);
    expect(gateway.genreCalls, 1);

    await service.genreFamilies();
    expect(gateway.genreCalls, 1);

    await service.genreFamilies(force: true);
    expect(gateway.genreCalls, 2);
  });

  test('random albums expand only the selected families', () async {
    final gateway = FakeJellyfinLibraryGateway()
      ..genres = const ['Metal', 'Melodic Metal', 'Метъл', 'Jazz', 'Рок']
      ..random = [album('r1'), album('r2')];
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );

    final albums = await service.randomAlbums(
      selections: const [
        JellyfinGenreSelection(id: 'metal', label: 'Metal'),
        JellyfinGenreSelection(id: 'jazz', label: 'Jazz'),
      ],
    );

    expect(albums.map((entry) => entry.id), ['r1', 'r2']);
    expect(
      gateway.lastRandomGenres,
      containsAll(['Metal', 'Melodic Metal', 'Метъл', 'Jazz']),
    );
    expect(gateway.lastRandomGenres, isNot(contains('Рок')));
  });

  test('no selected genres means no random request', () async {
    final gateway = FakeJellyfinLibraryGateway();
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );

    final albums = await service.randomAlbums(selections: const []);

    expect(albums, isEmpty);
    expect(gateway.randomCalls, 0);
  });

  test('stream URL carries no token and uses the universal endpoint', () {
    final gateway = FakeJellyfinLibraryGateway();
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );
    final url = service.streamUrl(
      track('a1', mediaSourceId: 'source-a1'),
      maxStreamingBitrate: 320000,
    );
    final text = url.toString();

    expect(text, contains('Audio/a1/universal'));
    expect(text, contains('MediaSourceId=source-a1'));
    expect(text, contains('MaxStreamingBitrate=320000'));
    expect(text, contains('EnableRedirection=true'));
    expect(text, isNot(contains('test-token')));
    expect(text, isNot(contains('api_key')));
  });

  test('buildQueue produces a native queue with artwork and auth', () async {
    final gateway = FakeJellyfinLibraryGateway()
      ..tracks = {
        'album-a': [
          track('a1', duration: const Duration(seconds: 60)),
          track('a2', duration: const Duration(seconds: 120)),
        ],
      }
      ..artwork = Uint8List.fromList([1, 2, 3]);
    final service = JellyfinLibraryService(
      connectionProvider: () => testJellyfinConnection,
      gateway: gateway,
    );

    final queue = await service.buildQueue(
      album('album-a', imageTag: 'tag-a'),
      playSessionId: 'session-1',
    );

    expect(queue, isNotNull);
    expect(queue!.items.length, 2);
    expect(queue.items.first.trackId, 'a1');
    expect(queue.items.first.durationMs, 60000);
    expect(queue.items.first.url, contains('Audio/a1/universal'));
    expect(queue.playSessionId, 'session-1');
    expect(queue.authorization, contains('Token="test-token"'));
    expect(queue.artwork, [1, 2, 3]);
    expect(queue.items.first.url, isNot(contains('test-token')));
  });

  test(
    'buildQueue returns null for an album with no playable tracks',
    () async {
      final gateway = FakeJellyfinLibraryGateway();
      final service = JellyfinLibraryService(
        connectionProvider: () => testJellyfinConnection,
        gateway: gateway,
      );

      final queue = await service.buildQueue(album('empty'));

      expect(queue, isNull);
    },
  );

  test(
    'image URL and headers are available without exposing the token in the URL',
    () {
      final gateway = FakeJellyfinLibraryGateway();
      final service = JellyfinLibraryService(
        connectionProvider: () => testJellyfinConnection,
        gateway: gateway,
      );
      final url = service.imageUrl('album-a', 'tag-a', maxHeight: 300);
      expect(url, isNotNull);
      expect(url.toString(), contains('Items/album-a/Images/Primary'));
      expect(url.toString(), contains('maxHeight=300'));
      expect(url.toString(), contains('tag=tag-a'));
      expect(url.toString(), isNot(contains('test-token')));
      expect(
        service.imageHeaders['Authorization'],
        contains('Token="test-token"'),
      );
    },
  );

  test('a missing connection fails without touching the gateway', () async {
    final gateway = FakeJellyfinLibraryGateway();
    final service = JellyfinLibraryService(
      connectionProvider: () => null,
      gateway: gateway,
    );

    expect(service.isConfigured, isFalse);
    await expectLater(
      service.latestPlayed(),
      throwsA(isA<JellyfinException>()),
    );
    expect(gateway.playedCalls, 0);
  });
}