feat(app): 客户端展示多语言并支持筛选分页

lib/core/data/models/content_category.dart

@@ -1,17 +1,30 @@
 // Author: fruit.com.cn
 
+import 'locale_text.dart';
+
 /// 服务端内容分类。id 按契约保持字符串，避免雪花 ID 精度丢失。
 class ContentCategory {
-  const ContentCategory({required this.id, required this.name});
+  const ContentCategory({
+    required this.id,
+    required this.name,
+    this.locales = const {},
+  });
 
   final String id;
+
+  /// 中文名称，与 locales 里的 zh 相同。
   final String name;
+  final Map<String, String> locales;
 
   /// 解析 `GET /app/categories` 的单项。
   factory ContentCategory.fromJson(Map<String, dynamic> json) {
-    return ContentCategory(
-      id: (json['id'] ?? '').toString(),
-      name: json['name'] as String? ?? '',
-    );
+    final locales = localeMap(json['locales']);
+    final name = json['name'] as String? ?? locales['zh'] ?? '';
+    return ContentCategory(id: (json['id'] ?? '').toString(), name: name, locales: locales);
+  }
+
+  /// 按界面语言取名称。缺对应语言时回落到中文。
+  String localizedName(String languageCode) {
+    return localizedText(languageCode, name, locales);
   }
 }

lib/core/data/models/drama.dart

@@ -1,6 +1,9 @@
 // Author: fruit.com.cn
 
+import 'dart:ui';
+
 import 'json_numbers.dart';
+import 'locale_text.dart';
 
 /// 短剧与剧集，字段与后端 `/app/**` 的下发结构对应。
 ///
@@ -76,7 +79,14 @@ class Drama {
     required this.synopsis,
     required this.posterUrl,
     this.episodes = const [],
+    this.titleLocales = const {},
+    this.synopsisLocales = const {},
+    this.tag = '',
+    this.tagLocales = const {},
+    this.tagColor = '',
     this.category = '',
+    this.categoryLocales = const {},
+    this.types = const [],
     this.genre = '',
     this.totalEpisodes = 0,
     this.freeEpisodes = 0,
@@ -94,9 +104,16 @@ class Drama {
   final String id;
   final String title;
   final String synopsis;
+  final Map<String, String> titleLocales;
+  final Map<String, String> synopsisLocales;
+  final String tag;
+  final Map<String, String> tagLocales;
+  final String tagColor;
   final String posterUrl;
   final List<Episode> episodes;
   final String category;
+  final Map<String, String> categoryLocales;
+  final List<Map<String, String>> types;
   final String genre;
   final int totalEpisodes;
   final int freeEpisodes;
@@ -127,19 +144,26 @@ class Drama {
   /// 列表卡片：带一集可播预览（首页直接起播），完整剧集进详情再取。
   factory Drama.fromCardJson(Map<String, dynamic> json) {
     final preview = json['preview'];
+    final text = _DramaText.fromJson(json);
     return Drama(
       id: (json['id'] ?? '').toString(),
-      title: json['title'] as String? ?? '',
-      synopsis: json['synopsis'] as String? ?? '',
+      title: text.title,
+      synopsis: text.synopsis,
+      titleLocales: text.titleLocales,
+      synopsisLocales: text.synopsisLocales,
+      tag: text.tag,
+      tagLocales: text.tagLocales,
+      tagColor: json['tagColor'] as String? ?? '',
       posterUrl: json['cover'] as String? ?? '',
       episodes: preview is Map<String, dynamic>
           ? [Episode.fromJson(preview)]
           : const [],
-      category: json['category'] as String? ?? '',
-      genre: json['genre'] as String? ?? '',
+      category: text.category,
+      categoryLocales: text.categoryLocales,
+      types: text.types,
+      genre: text.genre,
       totalEpisodes: (json['totalEpisodes'] as num?)?.toInt() ?? 0,
       isHot: json['isHot'] == true,
-      // viewCount 后端是 Long，按字符串下发（见 json_numbers.dart）
       viewCount: jsonToInt(json['viewCount']),
       likeCount: _optionalInt(json['likeCount']),
       favoriteCount: _optionalInt(json['favoriteCount']),
@@ -152,13 +176,21 @@ class Drama {
 
   /// 详情：带剧集列表。
   factory Drama.fromDetailJson(Map<String, dynamic> json) {
+    final text = _DramaText.fromJson(json);
     return Drama(
       id: (json['id'] ?? '').toString(),
-      title: json['title'] as String? ?? '',
-      synopsis: json['synopsis'] as String? ?? '',
+      title: text.title,
+      synopsis: text.synopsis,
+      titleLocales: text.titleLocales,
+      synopsisLocales: text.synopsisLocales,
+      tag: text.tag,
+      tagLocales: text.tagLocales,
+      tagColor: json['tagColor'] as String? ?? '',
       posterUrl: json['cover'] as String? ?? '',
-      category: json['category'] as String? ?? '',
-      genre: json['genre'] as String? ?? '',
+      category: text.category,
+      categoryLocales: text.categoryLocales,
+      types: text.types,
+      genre: text.genre,
       totalEpisodes: (json['totalEpisodes'] as num?)?.toInt() ?? 0,
       freeEpisodes: (json['freeEpisodes'] as num?)?.toInt() ?? 0,
       isHot: json['isHot'] == true,
@@ -176,6 +208,37 @@ class Drama {
           .toList(),
     );
   }
+
+  String localizedTitle(String languageCode) {
+    return localizedText(languageCode, title, titleLocales);
+  }
+
+  String localizedSynopsis(String languageCode) {
+    return localizedText(languageCode, synopsis, synopsisLocales);
+  }
+
+  String localizedTag(String languageCode) {
+    return localizedText(languageCode, tag, tagLocales);
+  }
+
+  /// 标签角标背景色。接口没给合法色值时用 fallback。
+  Color tagRibbonColor(Color fallback) {
+    final parsed = _colorFromHex(tagColor);
+    return parsed ?? fallback;
+  }
+
+  /// 按当前语言取类型名称。接口没带语言表时返回空，调用方继续用中文 genre。
+  List<String> localizedTypeLabels(String languageCode) {
+    final labels = <String>[];
+    for (final item in types) {
+      final label = localizedText(languageCode, item['zh'] ?? '', item);
+      if (label.isNotEmpty && !labels.contains(label)) labels.add(label);
+    }
+    if (labels.isNotEmpty) return labels;
+    final primary = localizedText(languageCode, '', categoryLocales);
+    if (primary.isNotEmpty) return [primary];
+    return const [];
+  }
 }
 
 int? _optionalInt(dynamic value) => value == null ? null : jsonToInt(value);
@@ -184,3 +247,81 @@ String? _optionalString(dynamic value) {
   final text = value is String ? value.trim() : '';
   return text.isEmpty ? null : text;
 }
+
+Color? _colorFromHex(String raw) {
+  final text = raw.trim();
+  if (text.length != 7 || !text.startsWith('#')) return null;
+  final value = int.tryParse(text.substring(1), radix: 16);
+  if (value == null) return null;
+  return Color(0xFF000000 | value);
+}
+
+List<Map<String, String>> _typeLocales(Object? raw) {
+  if (raw is! List) return const [];
+  return raw.whereType<Map>().map(localeMap).toList(growable: false);
+}
+
+/// 从语言表还原中文展示字段。列表接口不再单独下发 title / synopsis / tag。
+class _DramaText {
+  const _DramaText({
+    required this.title,
+    required this.synopsis,
+    required this.titleLocales,
+    required this.synopsisLocales,
+    required this.tag,
+    required this.tagLocales,
+    required this.category,
+    required this.categoryLocales,
+    required this.types,
+    required this.genre,
+  });
+
+  final String title;
+  final String synopsis;
+  final Map<String, String> titleLocales;
+  final Map<String, String> synopsisLocales;
+  final String tag;
+  final Map<String, String> tagLocales;
+  final String category;
+  final Map<String, String> categoryLocales;
+  final List<Map<String, String>> types;
+  final String genre;
+
+  factory _DramaText.fromJson(Map<String, dynamic> json) {
+    final titleLocales = localeMap(json['titleLocales']);
+    final synopsisLocales = localeMap(json['synopsisLocales']);
+    final tagLocales = localeMap(json['tagLocales']);
+    final categoryLocales = localeMap(json['categoryLocales']);
+    final types = _typeLocales(json['types']);
+    final category = _firstText(categoryLocales, json['category'], types);
+    return _DramaText(
+      title: _firstText(titleLocales, json['title']),
+      synopsis: _firstText(synopsisLocales, json['synopsis'] ?? json['description']),
+      titleLocales: titleLocales,
+      synopsisLocales: synopsisLocales,
+      tag: _firstText(tagLocales, json['tag']),
+      tagLocales: tagLocales,
+      category: category,
+      categoryLocales: categoryLocales,
+      types: types,
+      genre: _genreText(types, json['genre']),
+    );
+  }
+}
+
+String _firstText(Map<String, String> locales, Object? fallback, [List<Map<String, String>>? types]) {
+  final chinese = locales['zh'] ?? '';
+  if (chinese.isNotEmpty) return chinese;
+  if (types != null && types.isNotEmpty) {
+    final label = types.first['zh'] ?? '';
+    if (label.isNotEmpty) return label;
+  }
+  return fallback is String ? fallback : '';
+}
+
+String _genreText(List<Map<String, String>> types, Object? fallback) {
+  final names = types.map((item) => item['zh'] ?? '').where((value) => value.isNotEmpty);
+  final joined = names.join(' / ');
+  if (joined.isNotEmpty) return joined;
+  return fallback is String ? fallback : '';
+}

lib/core/data/models/home_feed.dart

@@ -48,7 +48,7 @@ class FeedSection {
   factory FeedSection.fromJson(Map<String, dynamic> json) {
     return FeedSection(
       code: json['code'] as String? ?? '',
-      title: json['title'] as String? ?? '',
+      title: _sectionTitle(json),
       dramas: (json['dramas'] as List? ?? const [])
           .whereType<Map<String, dynamic>>()
           .map(Drama.fromCardJson)
@@ -84,3 +84,12 @@ class FeedBanner {
     );
   }
 }
+
+String _sectionTitle(Map<String, dynamic> json) {
+  final locales = json['titleLocales'];
+  if (locales is Map) {
+    final chinese = locales['zh']?.toString() ?? '';
+    if (chinese.isNotEmpty) return chinese;
+  }
+  return json['title'] as String? ?? '';
+}

lib/core/data/models/locale_text.dart

@@ -0,0 +1,16 @@
+// Author: fruit.com.cn
+
+/// 把接口里的语言表解析成字符串映射。
+Map<String, String> localeMap(Object? raw) {
+  if (raw is! Map) return const {};
+  return raw.map((key, value) => MapEntry('$key', value?.toString() ?? ''));
+}
+
+/// 按当前语言取文案。没有对应语言时用中文，中文也没有时用 fallback。
+String localizedText(String languageCode, String fallback, Map<String, String> locales) {
+  final selected = locales[languageCode] ?? '';
+  if (selected.isNotEmpty) return selected;
+  final chinese = locales['zh'] ?? '';
+  if (chinese.isNotEmpty) return chinese;
+  return fallback;
+}

lib/core/data/models/playlist_detail.dart

@@ -0,0 +1,68 @@
+// Author: fruit.com.cn
+
+import 'drama.dart';
+import 'locale_text.dart';
+
+/// C 端剧单：`GET /app/playlists` 与 `GET /app/playlists/{id}` 的同一结构。
+class PlaylistDetail {
+  const PlaylistDetail({
+    required this.id,
+    required this.name,
+    required this.description,
+    this.locales = const {},
+    this.descriptionLocales = const {},
+    required this.dramaCount,
+    required this.dramas,
+    this.pageIndex = 1,
+    this.pageSize = 0,
+  });
+
+  final String id;
+
+  /// 中文名称，与 locales 里的 zh 相同。
+  final String name;
+  final Map<String, String> locales;
+
+  /// 中文描述，与 descriptionLocales 里的 zh 相同。
+  final String description;
+  final Map<String, String> descriptionLocales;
+  final int dramaCount;
+  final int pageIndex;
+  final int pageSize;
+  final List<Drama> dramas;
+
+  factory PlaylistDetail.fromJson(Map<String, dynamic> json) {
+    final dramas = _dramasOf(json['list']);
+    final locales = localeMap(json['locales']);
+    final descriptions = localeMap(json['descriptionLocales']);
+    return PlaylistDetail(
+      id: (json['id'] ?? '').toString(),
+      name: json['name'] as String? ?? locales['zh'] ?? '',
+      locales: locales,
+      description: json['description'] as String? ?? descriptions['zh'] ?? '',
+      descriptionLocales: descriptions,
+      dramaCount: (json['dramaCount'] as num?)?.toInt() ?? dramas.length,
+      pageIndex: (json['pageIndex'] as num?)?.toInt() ?? 1,
+      pageSize: (json['pageSize'] as num?)?.toInt() ?? dramas.length,
+      dramas: dramas,
+    );
+  }
+
+  /// 按界面语言取名称。缺对应语言时回落到中文。
+  String localizedName(String languageCode) {
+    return localizedText(languageCode, name, locales);
+  }
+
+  /// 按界面语言取描述。缺对应语言时回落到中文。
+  String localizedDescription(String languageCode) {
+    return localizedText(languageCode, description, descriptionLocales);
+  }
+}
+
+List<Drama> _dramasOf(Object? rows) {
+  if (rows is! List) return const [];
+  return rows
+      .whereType<Map>()
+      .map((item) => Drama.fromCardJson(Map<String, dynamic>.from(item)))
+      .toList(growable: false);
+}

lib/core/data/models/watch_progress.dart

@@ -1,6 +1,7 @@
 // Author: fruit.com.cn
 
 import 'json_numbers.dart';
+import 'locale_text.dart';
 
 /// 服务端续看记录：`GET /app/watch/progress?dramaId=` 与 `/app/watch/recent` 的下发结构。
 ///
@@ -13,6 +14,7 @@ class WatchProgress {
     required this.position,
     required this.duration,
     this.dramaTitle,
+    this.titleLocales = const {},
     this.dramaCover,
     this.episodeNumber,
     this.totalEpisodes,
@@ -25,6 +27,7 @@ class WatchProgress {
   final String dramaId;
   final String episodeId;
   final String? dramaTitle;
+  final Map<String, String> titleLocales;
   final String? dramaCover;
   final int? episodeNumber;
   final int? totalEpisodes;
@@ -45,11 +48,17 @@ class WatchProgress {
     return (position.inMilliseconds / duration.inMilliseconds).clamp(0.0, 1.0);
   }
 
+  /// 按当前语言取剧名。没有对应语言时回退中文，再回退 dramaTitle。
+  String localizedTitle(String languageCode) {
+    return localizedText(languageCode, dramaTitle ?? '', titleLocales);
+  }
+
   factory WatchProgress.fromJson(Map<String, dynamic> json) {
     return WatchProgress(
       dramaId: (json['dramaId'] ?? '').toString(),
       episodeId: (json['episodeId'] ?? '').toString(),
       dramaTitle: json['dramaTitle']?.toString(),
+      titleLocales: localeMap(json['titleLocales']),
       dramaCover: json['dramaCover']?.toString(),
       episodeNumber: json['episodeNumber'] == null
           ? null
@@ -72,6 +81,7 @@ class WatchProgress {
     'dramaId': dramaId,
     'episodeId': episodeId,
     if (dramaTitle != null) 'dramaTitle': dramaTitle,
+    if (titleLocales.isNotEmpty) 'titleLocales': titleLocales,
     if (dramaCover != null) 'dramaCover': dramaCover,
     if (episodeNumber != null) 'episodeNumber': episodeNumber,
     if (totalEpisodes != null) 'totalEpisodes': totalEpisodes,

lib/core/data/models/watch_record.dart

@@ -31,9 +31,13 @@ class WatchRecord {
   }
 
   /// 服务端分页标题优先，详情标题作为回退。
-  String get displayTitle {
-    final pageTitle = progress.dramaTitle?.trim() ?? '';
-    return pageTitle.isNotEmpty ? pageTitle : drama?.title.trim() ?? '';
+  String get displayTitle => localizedDisplayTitle('zh');
+
+  /// 按当前语言取标题。分页语言表优先，详情语言表作为回退。
+  String localizedDisplayTitle(String languageCode) {
+    final pageTitle = progress.localizedTitle(languageCode).trim();
+    if (pageTitle.isNotEmpty) return pageTitle;
+    return drama?.localizedTitle(languageCode).trim() ?? '';
   }
 
   /// 服务端分页封面优先，详情封面作为回退。

lib/core/data/remote/catalog_api.dart

@@ -1,6 +1,9 @@
+import '../models/content_category.dart';
 import '../models/drama.dart';
 import '../models/feed_page.dart';
 import '../models/home_feed.dart';
+import '../models/page_result.dart';
+import '../models/playlist_detail.dart';
 import '../models/search_result.dart';
 import 'api_client.dart';
 
@@ -58,12 +61,95 @@ class CatalogApi {
     return SearchResult.fromJson(_asMap(data));
   }
 
+  static const int playlistPageSize = 10;
+  static const int playlistDramaPageSize = 20;
+
+  /// 已启用剧单，分页返回，每条带已上线短剧卡片。
+  Future<PageResult<PlaylistDetail>> playlists({
+    int pageIndex = 1,
+    int pageSize = playlistPageSize,
+  }) async {
+    final data = await _client.get(
+      '/app/playlists',
+      query: {
+        'pageIndex': '$pageIndex',
+        'pageSize': '$pageSize',
+      },
+    );
+    return PageResult.parse(data, PlaylistDetail.fromJson);
+  }
+
+  /// 单个剧单详情。短剧按 pageIndex、pageSize 翻页。
+  Future<PlaylistDetail> playlist(
+    String id, {
+    int pageIndex = 1,
+    int pageSize = playlistDramaPageSize,
+  }) async {
+    return PlaylistDetail.fromJson(
+      _asMap(
+        await _client.get(
+          '/app/playlists/$id',
+          query: {
+            'pageIndex': '$pageIndex',
+            'pageSize': '$pageSize',
+          },
+        ),
+      ),
+    );
+  }
+
+  /// 已启用首页分类，名称在 locales。
+  Future<List<ContentCategory>> classifications() async {
+    return _categories(await _client.get('/app/categories'));
+  }
+
+  /// 已启用类型，名称在 locales。
+  Future<List<ContentCategory>> dramaCategories() async {
+    return _categories(await _client.get('/app/drama-categories'));
+  }
+
+  /// 已启用标签，名称在 locales。
+  Future<List<ContentCategory>> tags() async {
+    return _categories(await _client.get('/app/tags'));
+  }
+
+  static const int libraryPageSize = 20;
+
+  /// 全部短剧。同一组 id 多选为或，组与组之间为且。
+  Future<PageResult<Drama>> libraryDramas({
+    List<String> categoryIds = const [],
+    List<String> classificationIds = const [],
+    List<String> tagIds = const [],
+    int pageIndex = 1,
+    int pageSize = libraryPageSize,
+  }) async {
+    final data = await _client.post(
+      '/app/dramas/page',
+      body: {
+        'pageIndex': pageIndex,
+        'pageSize': pageSize,
+        'categoryIds': categoryIds,
+        'classificationIds': classificationIds,
+        'tagIds': tagIds,
+      },
+    );
+    return PageResult.parse(data, Drama.fromCardJson);
+  }
+
   Future<Drama> dramaDetail(String dramaId) async {
     return Drama.fromDetailJson(
       _asMap(await _client.get('/app/dramas/$dramaId')),
     );
   }
 
+  List<ContentCategory> _categories(Object? data) {
+    if (data is! List) return const [];
+    return [
+      for (final item in data)
+        if (item is Map<String, dynamic>) ContentCategory.fromJson(item),
+    ];
+  }
+
   Map<String, dynamic> _asMap(Object? data) {
     if (data is Map<String, dynamic>) return data;
     throw const ApiException(-1, '返回数据格式异常');

lib/core/data/remote/category_api.dart

@@ -1,12 +1,16 @@
 // Author: fruit.com.cn
 
 import '../models/content_category.dart';
+import '../models/drama.dart';
+import '../models/page_result.dart';
 import 'api_client.dart';
 
 /// 内容分类接口，对应契约 `GET /app/categories`。
 class CategoryApi {
   const CategoryApi(this._client);
 
+  static const int dramaPageSize = 20;
+
   final ApiClient _client;
 
   /// 拉取已启用分类，id 全程按字符串解析。
@@ -18,4 +22,20 @@ class CategoryApi {
         if (item is Map<String, dynamic>) ContentCategory.fromJson(item),
     ];
   }
+
+  /// 分类下已上线短剧，pageIndex 从 1 开始。
+  Future<PageResult<Drama>> dramas(
+    String categoryId, {
+    int pageIndex = 1,
+    int pageSize = dramaPageSize,
+  }) async {
+    final data = await _client.get(
+      '/app/categories/$categoryId/dramas',
+      query: {
+        'pageIndex': '$pageIndex',
+        'pageSize': '$pageSize',
+      },
+    );
+    return PageResult.parse(data, Drama.fromCardJson);
+  }
 }

lib/core/data/repositories/playlist_repository.dart

@@ -0,0 +1,38 @@
+// Author: fruit.com.cn
+
+import '../models/page_result.dart';
+import '../models/playlist_detail.dart';
+import '../remote/catalog_api.dart';
+
+/// 剧单来源：列表分页拉取，详情用于打开单条时刷新。
+abstract interface class PlaylistRepository {
+  Future<PageResult<PlaylistDetail>> fetchPlaylists({
+    int pageIndex = 1,
+    int pageSize = CatalogApi.playlistPageSize,
+  });
+
+  Future<PlaylistDetail> fetchPlaylist(
+    String id, {
+    int pageIndex = 1,
+    int pageSize = CatalogApi.playlistDramaPageSize,
+  });
+}
+
+class HttpPlaylistRepository implements PlaylistRepository {
+  HttpPlaylistRepository(this._api);
+
+  final CatalogApi _api;
+
+  @override
+  Future<PageResult<PlaylistDetail>> fetchPlaylists({
+    int pageIndex = 1,
+    int pageSize = CatalogApi.playlistPageSize,
+  }) => _api.playlists(pageIndex: pageIndex, pageSize: pageSize);
+
+  @override
+  Future<PlaylistDetail> fetchPlaylist(
+    String id, {
+    int pageIndex = 1,
+    int pageSize = CatalogApi.playlistDramaPageSize,
+  }) => _api.playlist(id, pageIndex: pageIndex, pageSize: pageSize);
+}

lib/core/data/services/all_dramas_controller.dart

@@ -0,0 +1,173 @@
+// Author: fruit.com.cn
+// 全部短剧筛选与分页：拉取分类、类型、标签，并按页加载短剧。
+
+import '../models/content_category.dart';
+import '../models/drama.dart';
+import '../models/page_result.dart';
+import '../remote/catalog_api.dart';
+
+/// 全部短剧筛选与分页所需的远端能力。
+abstract interface class AllDramasRemote {
+  /// 已启用分类。
+  Future<List<ContentCategory>> classifications();
+
+  /// 已启用类型。
+  Future<List<ContentCategory>> categories();
+
+  /// 已启用标签。
+  Future<List<ContentCategory>> tags();
+
+  /// 按当前筛选取一页短剧。
+  Future<PageResult<Drama>> dramas({
+    required List<String> categoryIds,
+    required List<String> classificationIds,
+    required List<String> tagIds,
+    required int pageIndex,
+  });
+}
+
+/// 用现有目录接口实现全部短剧远端能力。
+class CatalogAllDramasRemote implements AllDramasRemote {
+  /// 绑定目录接口。
+  const CatalogAllDramasRemote(this._api);
+
+  final CatalogApi _api;
+
+  @override
+  Future<List<ContentCategory>> classifications() => _api.classifications();
+
+  @override
+  Future<List<ContentCategory>> categories() => _api.dramaCategories();
+
+  @override
+  Future<List<ContentCategory>> tags() => _api.tags();
+
+  @override
+  Future<PageResult<Drama>> dramas({
+    required List<String> categoryIds,
+    required List<String> classificationIds,
+    required List<String> tagIds,
+    required int pageIndex,
+  }) {
+    return _api.libraryDramas(
+      categoryIds: categoryIds,
+      classificationIds: classificationIds,
+      tagIds: tagIds,
+      pageIndex: pageIndex,
+    );
+  }
+}
+
+/// 全部短剧：筛选项来自类型、分类、标签，列表按页加载。
+class AllDramasController {
+  AllDramasController({
+    AllDramasRemote? api,
+    this.classifications = const [],
+    this.categories = const [],
+    this.tags = const [],
+    this.dramas = const [],
+  }) : _api = api;
+
+  final AllDramasRemote? _api;
+  List<ContentCategory> classifications;
+  List<ContentCategory> categories;
+  List<ContentCategory> tags;
+  final Set<String> selectedClassifications = {};
+  final Set<String> selectedCategories = {};
+  final Set<String> selectedTags = {};
+  List<Drama> dramas;
+  bool loading = false;
+  bool loadingMore = false;
+  bool hasMore = false;
+  String? error;
+  int _page = 1;
+  int _total = 0;
+
+  bool get usesRemote => _api != null;
+
+  /// 预览用：筛选项和列表都已在本地，不请求接口。
+  factory AllDramasController.preview({
+    List<ContentCategory> classifications = const [],
+    List<ContentCategory> categories = const [],
+    List<ContentCategory> tags = const [],
+    List<Drama> dramas = const [],
+  }) {
+    return AllDramasController(
+      classifications: classifications,
+      categories: categories,
+      tags: tags,
+      dramas: dramas,
+    );
+  }
+
+  /// 从第一页重新拉取筛选项和短剧。没有接口时直接返回。
+  Future<void> refresh() async {
+    if (_api == null) return;
+    loading = true;
+    error = null;
+    _page = 1;
+    try {
+      final filters = await Future.wait([
+        _api.classifications(),
+        _api.categories(),
+        _api.tags(),
+      ]);
+      classifications = filters[0];
+      categories = filters[1];
+      tags = filters[2];
+      final page = await _loadPage(1);
+      dramas = page;
+      hasMore = dramas.length < _total;
+    } catch (caught) {
+      error = '$caught';
+    } finally {
+      loading = false;
+    }
+  }
+
+  /// 追加下一页。没有更多、正在加载或没有接口时直接返回。
+  Future<void> loadMore() async {
+    if (_api == null || loading || loadingMore || !hasMore) return;
+    loadingMore = true;
+    error = null;
+    try {
+      final next = await _loadPage(_page + 1);
+      _page += 1;
+      dramas = [...dramas, ...next];
+      hasMore = dramas.length < _total;
+    } catch (caught) {
+      error = '$caught';
+    } finally {
+      loadingMore = false;
+    }
+  }
+
+  /// 切换一个分类。传入空字符串表示清空这一组。
+  void toggleClassification(String id) =>
+      _toggle(selectedClassifications, id);
+
+  /// 切换一个类型。传入空字符串表示清空这一组。
+  void toggleCategory(String id) => _toggle(selectedCategories, id);
+
+  /// 切换一个标签。传入空字符串表示清空这一组。
+  void toggleTag(String id) => _toggle(selectedTags, id);
+
+  void _toggle(Set<String> selected, String id) {
+    if (id.isEmpty) {
+      selected.clear();
+      return;
+    }
+    if (!selected.add(id)) selected.remove(id);
+  }
+
+  Future<List<Drama>> _loadPage(int pageIndex) async {
+    final page = await _api!.dramas(
+      categoryIds: selectedCategories.toList(growable: false),
+      classificationIds: selectedClassifications.toList(growable: false),
+      tagIds: selectedTags.toList(growable: false),
+      pageIndex: pageIndex,
+    );
+    _total = page.total;
+    return page.list;
+  }
+}

lib/core/data/services/category_controller.dart

@@ -6,6 +6,8 @@ import '../../config/app_config.dart';
 import '../models/content_category.dart';
 import '../models/drama.dart';
 import '../models/home_feed.dart';
+import '../models/page_result.dart';
+import '../remote/category_api.dart';
 import '../repositories/category_repository.dart';
 
 /// 剧场页数据：服务端分类清单与发现 feed。
@@ -14,13 +16,80 @@ class CategoryController extends ChangeNotifier {
 
   final CategoryRepository _repository;
 
+  /// 生产环境注入。未注入时首页分类继续用本地筛选。
+  Future<PageResult<Drama>> Function(
+    String categoryId, {
+    int pageIndex,
+    int pageSize,
+  })? dramaPageLoader;
+
   List<ContentCategory> categories = const [];
+  final Map<String, CategoryDramaSlot> _slots = {};
   HomeFeed feed = const HomeFeed();
   bool loading = false;
   String? error;
   String? debugError;
   bool _disposed = false;
 
+  /// 某个分类自己的短剧分页，不和别的分类共用。
+  CategoryDramaSlot slotOf(String categoryId) {
+    return _slots.putIfAbsent(categoryId, CategoryDramaSlot.new);
+  }
+
+  /// 打开分类并加载第一页短剧。
+  Future<void> openCategory(String categoryId) async {
+    final loader = dramaPageLoader;
+    if (loader == null) return;
+    final slot = slotOf(categoryId);
+    slot.loading = true;
+    slot.loadingMore = false;
+    _notify();
+    try {
+      final page = await loader(
+        categoryId,
+        pageIndex: 1,
+        pageSize: CategoryApi.dramaPageSize,
+      );
+      slot.dramas = page.list;
+      slot.total = page.total;
+      slot.pageIndex = 1;
+    } catch (exception) {
+      if (kDebugMode) debugPrint('[category] $exception');
+    } finally {
+      slot.loading = false;
+      _notify();
+    }
+  }
+
+  /// 上拉加载这个分类的下一页。
+  Future<void> loadMore(String categoryId) async {
+    final loader = dramaPageLoader;
+    final slot = _slots[categoryId];
+    if (loader == null || slot == null) return;
+    if (slot.loading || slot.loadingMore || !slot.hasMore) return;
+    slot.loadingMore = true;
+    _notify();
+    try {
+      final page = await loader(
+        categoryId,
+        pageIndex: slot.pageIndex + 1,
+        pageSize: CategoryApi.dramaPageSize,
+      );
+      if (page.list.isEmpty) {
+        slot.total = slot.dramas.length;
+      } else {
+        slot.dramas = [...slot.dramas, ...page.list];
+        slot.total = page.total;
+        slot.pageIndex += 1;
+      }
+    } catch (exception) {
+      if (kDebugMode) debugPrint('[category] more $exception');
+    } finally {
+      slot.loadingMore = false;
+      _notify();
+    }
+  }
+
   /// 分类九宫格点击后读取该分类的剧目；缺失分区返回空列表。
   List<Drama> dramasOf(String categoryId) {
     final code = 'category-$categoryId';
@@ -30,19 +99,23 @@ class CategoryController extends ChangeNotifier {
     return const [];
   }
 
-  /// 加载分类与发现 feed；失败保留可重试错误态。
+  /// 首页只拉分类，再拉第一个分类的短剧。发现页聚合留到没有短剧分页时再取。
   Future<void> load() async {
     loading = true;
     error = null;
     debugError = null;
     _notify();
     try {
-      final results = await Future.wait<Object>([
-        _repository.fetchCategories(),
-        _repository.fetchDiscoverFeed(),
-      ]);
-      categories = results[0] as List<ContentCategory>;
-      feed = results[1] as HomeFeed;
+      if (dramaPageLoader != null) {
+        categories = await _repository.fetchCategories();
+      } else {
+        final results = await Future.wait<Object>([
+          _repository.fetchCategories(),
+          _repository.fetchDiscoverFeed(),
+        ]);
+        categories = results[0] as List<ContentCategory>;
+        feed = results[1] as HomeFeed;
+      }
     } catch (exception) {
       error = 'categoriesError';
       debugError = exception.toString();
@@ -53,6 +126,9 @@ class CategoryController extends ChangeNotifier {
       loading = false;
       _notify();
     }
+    if (error == null && dramaPageLoader != null && categories.isNotEmpty) {
+      await openCategory(categories.first.id);
+    }
   }
 
   void _notify() {
@@ -65,3 +141,14 @@ class CategoryController extends ChangeNotifier {
     super.dispose();
   }
 }
+
+/// 单个分类的短剧分页状态。
+class CategoryDramaSlot {
+  List<Drama> dramas = const [];
+  int total = 0;
+  int pageIndex = 0;
+  bool loading = false;
+  bool loadingMore = false;
+
+  bool get hasMore => dramas.length < total;
+}

lib/core/data/services/playlist_controller.dart

@@ -0,0 +1,107 @@
+// Author: fruit.com.cn
+
+import 'package:flutter/foundation.dart';
+
+import '../models/playlist_detail.dart';
+import '../remote/catalog_api.dart';
+import '../repositories/playlist_repository.dart';
+
+/// 推荐页剧单：已启用剧单及其短剧卡片。
+class PlaylistController extends ChangeNotifier {
+  PlaylistController(this._repository);
+
+  final PlaylistRepository _repository;
+
+  static const int pageSize = CatalogApi.playlistPageSize;
+
+  List<PlaylistDetail> items = const [];
+  bool loading = false;
+  bool loadingMore = false;
+  bool loaded = false;
+  bool hasMore = false;
+  String? error;
+  int _pageIndex = 1;
+  bool _disposed = false;
+
+  /// 从第一页重新拉取。失败保留错误态，成功后替换本地缓存。
+  Future<void> load() async {
+    loading = true;
+    error = null;
+    _notify();
+    try {
+      final page = await _repository.fetchPlaylists(pageSize: pageSize);
+      items = page.list;
+      _pageIndex = 1;
+      hasMore = items.length < page.total;
+      loaded = true;
+    } catch (exception) {
+      error = 'playlistsError';
+      if (kDebugMode) debugPrint('[playlist] $exception');
+    } finally {
+      loading = false;
+      _notify();
+    }
+  }
+
+  /// 滚到底时追加下一页。没有更多或正在请求时直接返回。
+  Future<void> loadMore() async {
+    if (loading || loadingMore || !hasMore) return;
+    loadingMore = true;
+    _notify();
+    try {
+      final page = await _repository.fetchPlaylists(
+        pageIndex: _pageIndex + 1,
+        pageSize: pageSize,
+      );
+      if (page.list.isEmpty) {
+        hasMore = false;
+      } else {
+        items = [...items, ...page.list];
+        _pageIndex += 1;
+        hasMore = items.length < page.total;
+      }
+    } catch (exception) {
+      if (kDebugMode) debugPrint('[playlist] more $exception');
+    } finally {
+      loadingMore = false;
+      _notify();
+    }
+  }
+
+  /// 打开某一剧单时再取一次详情；失败则回落到列表里已有的那条。
+  Future<PlaylistDetail> detail(
+    String id, {
+    int pageIndex = 1,
+    int pageSize = CatalogApi.playlistDramaPageSize,
+  }) async {
+    try {
+      return await _repository.fetchPlaylist(
+        id,
+        pageIndex: pageIndex,
+        pageSize: pageSize,
+      );
+    } catch (exception) {
+      if (kDebugMode) debugPrint('[playlist] detail $id $exception');
+      return items.firstWhere(
+        (item) => item.id == id,
+        orElse: () => PlaylistDetail(
+          id: id,
+          name: '',
+          description: '',
+          dramaCount: 0,
+          dramas: const [],
+        ),
+      );
+    }
+  }
+
+  void _notify() {
+    if (!_disposed) notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _disposed = true;
+    super.dispose();
+  }
+}