import 'package:flutter_test/flutter_test.dart';
import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/formatting/localized_content.dart';
import 'package:fruitshorts/l10n/app_localizations_en.dart';
import 'package:fruitshorts/l10n/app_localizations_id.dart';
import 'package:fruitshorts/l10n/app_localizations_zh.dart';

Drama _drama({
  required String id,
  String title = 'raw',
  String synopsis = 'raw',
}) => Drama(
  id: id,
  title: title,
  synopsis: synopsis,
  posterUrl: '/files/poster.png',
  episodes: const [],
);

void main() {
  final en = AppLocalizationsEn();
  final zh = AppLocalizationsZh();
  final id = AppLocalizationsId();

  test(
    'should_map_each_seeded_drama_to_its_own_localized_copy_when_looked_up',
    () {
      final signal = _drama(id: 'the-signal-demo');
      final city = _drama(id: 'city-lights-demo');
      final vengeance = _drama(id: 'vengeance-demo');

      expect(localizedDramaTitle(en, signal), en.dramaSignalTitle);
      expect(localizedDramaTitle(en, city), en.dramaCityTitle);
      expect(localizedDramaTitle(en, vengeance), en.dramaVengeanceTitle);

      expect(localizedDramaSynopsis(en, signal), en.dramaSignalSynopsis);
      expect(localizedDramaSynopsis(en, city), en.dramaCitySynopsis);
      expect(localizedDramaSynopsis(en, vengeance), en.dramaVengeanceSynopsis);
    },
  );

  test('should_keep_two_dramas_apart_when_localized_copy_is_mapped', () {
    final titles = {
      localizedDramaTitle(en, _drama(id: 'the-signal-demo')),
      localizedDramaTitle(en, _drama(id: 'city-lights-demo')),
      localizedDramaTitle(en, _drama(id: 'vengeance-demo')),
    };
    final synopses = {
      localizedDramaSynopsis(en, _drama(id: 'the-signal-demo')),
      localizedDramaSynopsis(en, _drama(id: 'city-lights-demo')),
      localizedDramaSynopsis(en, _drama(id: 'vengeance-demo')),
    };

    expect(titles, hasLength(3));
    expect(synopses, hasLength(3));
  });

  test('should_translate_localized_copy_when_content_is_looked_up', () {
    final signal = _drama(id: 'the-signal-demo');

    expect(localizedDramaTitle(zh, signal), zh.dramaSignalTitle);
    expect(localizedDramaSynopsis(zh, signal), zh.dramaSignalSynopsis);
    expect(localizedDramaTitle(zh, signal), isNot(en.dramaSignalTitle));
  });

  test('should_keep_catalog_text_in_every_locale_when_drama_is_unknown', () {
    final custom = _drama(
      id: 'custom-demo',
      title: 'Custom Title',
      synopsis: 'Custom synopsis',
    );

    expect(localizedDramaTitle(en, custom), 'Custom Title');
    expect(localizedDramaTitle(zh, custom), 'Custom Title');
    expect(localizedDramaSynopsis(en, custom), 'Custom synopsis');
    expect(localizedDramaSynopsis(zh, custom), 'Custom synopsis');
  });

  test('should_fall_back_to_chinese_when_indonesian_copy_is_missing', () {
    const drama = Drama(
      id: 'missing-id-copy',
      title: '古城',
      synopsis: '中文简介',
      titleLocales: {'zh': '古城'},
      synopsisLocales: {'zh': '中文简介'},
      posterUrl: '/files/poster.png',
    );

    expect(drama.localizedTitle('id'), '古城');
    expect(drama.localizedSynopsis('id'), '中文简介');
  });

  test('should_ignore_raw_catalog_text_when_drama_is_seeded', () {
    final signal = _drama(
      id: 'the-signal-demo',
      title: 'stale title',
      synopsis: 'stale synopsis',
    );

    expect(localizedDramaTitle(en, signal), isNot('stale title'));
    expect(localizedDramaSynopsis(en, signal), isNot('stale synopsis'));
  });

  test('should_use_named_titles_when_episode_number_is_one_to_four', () {
    expect(localizedEpisodeTitle(en, 1), en.episodeOneTitle);
    expect(localizedEpisodeTitle(en, 2), en.episodeTwoTitle);
    expect(localizedEpisodeTitle(en, 3), en.episodeThreeTitle);
    expect(localizedEpisodeTitle(en, 4), en.episodeFourTitle);
  });

  test('should_fall_back_to_numbered_label_when_episode_number_is_later', () {
    for (final number in <int>[5, 12, 100]) {
      expect(localizedEpisodeTitle(en, number), en.episodeLabel(number));
      expect(localizedEpisodeTitle(en, number), contains('$number'));
    }
    expect(localizedEpisodeTitle(zh, 12), zh.episodeLabel(12));
  });

  test('should_build_share_copy_from_localized_title_synopsis_and_footer', () {
    final signal = _drama(id: 'the-signal-demo');
    final copies = {
      for (final l10n in [en, zh, id])
        '${localizedDramaTitle(l10n, signal)}\n'
            '${localizedDramaSynopsis(l10n, signal)}\n'
            '${l10n.shareFooter}',
    };

    expect(copies, hasLength(3));
    for (final copy in copies) {
      expect(copy, contains('ymb'));
      expect(copy.split('\n'), hasLength(3));
      expect(copy.split('\n').every((line) => line.isNotEmpty), isTrue);
    }
  });
}