initial commit

lib/foundation/comic_source/favorites.dart

@@ -0,0 +1,50 @@
+part of 'comic_source.dart';
+
+typedef AddOrDelFavFunc = Future<Res<bool>> Function(String comicId, String folderId, bool isAdding);
+
+class FavoriteData{
+  final String key;
+
+  final String title;
+
+  final bool multiFolder;
+
+  final Future<Res<List<Comic>>> Function(int page, [String? folder]) loadComic;
+
+  /// key-id, value-name
+  ///
+  /// if comicId is not null, Res.subData is the folders that the comic is in
+  final Future<Res<Map<String, String>>> Function([String? comicId])? loadFolders;
+
+  /// A value of null disables this feature
+  final Future<Res<bool>> Function(String key)? deleteFolder;
+
+  /// A value of null disables this feature
+  final Future<Res<bool>> Function(String name)? addFolder;
+
+  /// A value of null disables this feature
+  final String? allFavoritesId;
+
+  final AddOrDelFavFunc? addOrDelFavorite;
+
+  const FavoriteData({
+    required this.key,
+    required this.title,
+    required this.multiFolder,
+    required this.loadComic,
+    this.loadFolders,
+    this.deleteFolder,
+    this.addFolder,
+    this.allFavoritesId,
+    this.addOrDelFavorite});
+}
+
+FavoriteData getFavoriteData(String key){
+  var source = ComicSource.find(key) ?? (throw "Unknown source key: $key");
+  return source.favoriteData!;
+}
+
+FavoriteData? getFavoriteDataOrNull(String key){
+  var source = ComicSource.find(key);
+  return source?.favoriteData;
+}