Initial Flutter booru app

2026-05-23 11:46:52 +03:00
commit 63da741295
187 changed files with 24113 additions and 0 deletions
@@ -0,0 +1,70 @@
+import '../../core/cache/cache_service.dart';
+import '../../core/utils/result.dart';
+import '../models/post.dart';
+import '../models/top_period_filter.dart';
+import '../providers/provider_manager.dart';
+import 'settings_service.dart';
+
+class FeedService {
+  FeedService(this._providerManager, this._cacheService, this._settingsService);
+
+  final ProviderManager _providerManager;
+  final CacheService _cacheService;
+  final SettingsService _settingsService;
+  final Map<String, int> _pages = {};
+
+  String _key(
+    List<String> tags,
+    String? rating,
+    String? providerId,
+    TopPeriodFilter topPeriod,
+  ) {
+    final sorted = [...tags]..sort();
+    return '${sorted.join(' ')}|${rating ?? ''}|${providerId ?? ''}|${topPeriod.name}';
+  }
+
+  Future<Result<List<Post>>> refresh({
+    List<String> tags = const [],
+    String? rating,
+    String? providerId,
+    TopPeriodFilter topPeriod = TopPeriodFilter.none,
+    int limit = 50,
+  }) {
+    _pages[_key(tags, rating, providerId, topPeriod)] = 0;
+    return loadNextPage(
+      tags: tags,
+      rating: rating,
+      providerId: providerId,
+      topPeriod: topPeriod,
+      limit: limit,
+    );
+  }
+
+  Future<Result<List<Post>>> loadNextPage({
+    List<String> tags = const [],
+    String? rating,
+    String? providerId,
+    TopPeriodFilter topPeriod = TopPeriodFilter.none,
+    int limit = 50,
+  }) async {
+    final key = _key(tags, rating, providerId, topPeriod);
+    final page = _pages[key] ?? 0;
+    final result = await _providerManager.searchAcrossProviders(
+      tags: tags,
+      page: page,
+      limit: limit,
+      rating: rating,
+      providerId: providerId,
+      topPeriod: topPeriod,
+    );
+    if (result is Error<List<Post>>) return Error(result.failure);
+    final posts = (result as Success<List<Post>>).data;
+    _pages[key] = page + 1;
+    final settingsResult = await _settingsService.getSettings();
+    final maxItems = settingsResult is Success<AppSettings>
+        ? settingsResult.data.cacheMaxItems
+        : null;
+    await _cacheService.cachePosts(posts, maxItems: maxItems);
+    return Success(posts);
+  }
+}