import 'package:fruitshorts/core/data/models/drama.dart';
import 'package:fruitshorts/core/data/models/home_feed.dart';
import 'package:fruitshorts/core/data/models/search_result.dart';
import 'package:fruitshorts/core/data/repositories/catalog_repository.dart';
import 'package:fruitshorts/core/data/repositories/search_repository.dart';

/// 测试用目录数据：三部分区里的短剧，标题与后端演示数据保持一致。
class FakeCatalogRepository implements CatalogRepository, SearchRepository {
  FakeCatalogRepository({List<Drama>? dramas, this.banners = const []})
    : dramas = dramas ?? demoDramas;

  final List<Drama> dramas;
  final List<FeedBanner> banners;

  @override
  Future<HomeFeed> fetchHomeFeed() async => _feed();

  @override
  Future<HomeFeed> fetchDiscoverFeed() async => _feed();

  @override
  Future<Drama> fetchDrama(String dramaId) async {
    return dramas.firstWhere((drama) => drama.id == dramaId);
  }

  @override
  Future<SearchResult> search(
    String keyword, {
    int pageIndex = 1,
    int pageSize = 20,
  }) async {
    final query = keyword.trim().toLowerCase();
    final hits = dramas.where((drama) {
      final haystack = [drama.title, drama.synopsis, drama.genre].join(' ');
      return haystack.toLowerCase().contains(query);
    }).toList();
    return SearchResult(total: hits.length, list: hits);
  }

  HomeFeed _feed() => HomeFeed(
    banners: banners,
    sections: [FeedSection(code: 'hot', title: '热门推荐', dramas: dramas)],
  );
}

final List<Drama> demoDramas = [
  _drama(
    'the-signal-demo',
    'The Signal',
    'Suspense · Mystery',
    format: 1,
    viewCount: 419000,
    likeCount: 419000,
    favoriteCount: 1006,
    commentCount: 32000,
  ),
  _drama(
    'city-lights-demo',
    'City Lights & Velvet Nights',
    'Urban Romance',
    format: 8,
    likeCount: 12400,
    favoriteCount: 3200,
    commentCount: 96,
  ),
  _drama('vengeance-demo', 'Vengeance Rising', 'Action · Thriller', format: 15),
];

Drama _drama(
  String id,
  String title,
  String genre, {
  required int format,
  int? likeCount,
  int? favoriteCount,
  int? commentCount,
  int viewCount = 0,
}) => Drama(
  id: id,
  title: title,
  synopsis: '$title synopsis',
  posterUrl: '/files/$id.png',
  genre: genre,
  language: 'id',
  detailLoaded: true,
  viewCount: viewCount,
  likeCount: likeCount,
  favoriteCount: favoriteCount,
  commentCount: commentCount,
  episodes: [
    for (var index = 0; index < 7; index++)
      Episode(
        id: '$id-${index + 1}',
        number: index + 1,
        title: 'Episode ${index + 1}',
        isFree: true,
        videoUrl: 'https://example.test/$format-$index.mp4',
      ),
  ],
);