Initial commit

2026-07-14 11:11:36 +08:00
commit 656499cf94
604 changed files with 119518 additions and 0 deletions
@@ -0,0 +1,104 @@
+import 'dart:async';
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../core/domain/usecases/usecase_helpers.dart';
+import '../core/infra/emby_api/playback_resolver.dart';
+import '../shared/utils/app_logger.dart';
+import 'di_providers.dart';
+
+const _tag = 'PlaybackInfoPrefetch';
+
+typedef PlaybackInfoPrefetchKey = ({
+  String serverId,
+  String itemId,
+  String? mediaSourceId,
+  int startTimeTicks,
+});
+
+typedef PlaybackInfoPrefetchPayload = ({
+  String serverId,
+  String itemId,
+  String? mediaSourceId,
+  int startTimeTicks,
+  Map<String, dynamic> info,
+});
+
+String describePlaybackInfoPrefetchKey(PlaybackInfoPrefetchKey key) {
+  return 'serverId=${key.serverId} itemId=${key.itemId} '
+      'mediaSourceId=${key.mediaSourceId ?? '-'} '
+      'startTimeTicks=${key.startTimeTicks}';
+}
+
+final playbackInfoPrefetchProvider = FutureProvider.autoDispose
+    .family<PlaybackInfoPrefetchPayload?, PlaybackInfoPrefetchKey>((
+      ref,
+      key,
+    ) async {
+      final keepAlive = ref.keepAlive();
+      Timer? cacheTimer;
+      var disposed = false;
+      ref.onDispose(() {
+        disposed = true;
+        cacheTimer?.cancel();
+      });
+      try {
+        AppLogger.debug(
+          _tag,
+          'fetch start ${describePlaybackInfoPrefetchKey(key)}',
+        );
+        final gateway = await ref.read(embyGatewayProvider.future);
+        final sessionRepo = await ref.read(sessionRepositoryProvider.future);
+        final serverRepo = await ref.read(serverRepositoryProvider.future);
+        final ctx = await resolveAuthedContextForServer(
+          sessionRepository: sessionRepo,
+          serverRepository: serverRepo,
+          serverId: key.serverId,
+        );
+        if (ctx == null) {
+          AppLogger.debug(
+            _tag,
+            'fetch skipped missing auth ${describePlaybackInfoPrefetchKey(key)}',
+          );
+          return null;
+        }
+        final info = await gateway.fetchPlaybackInfo(
+          ctx: ctx,
+          itemId: key.itemId,
+          mediaSourceId: key.mediaSourceId,
+          startTimeTicks: key.startTimeTicks,
+          isPlayback: true,
+          deviceProfile: PlaybackResolver.deviceProfile(),
+        );
+        if (info.isEmpty) {
+          AppLogger.debug(
+            _tag,
+            'fetch empty ${describePlaybackInfoPrefetchKey(key)}',
+          );
+          return null;
+        }
+        AppLogger.debug(
+          _tag,
+          'fetch success ${describePlaybackInfoPrefetchKey(key)} '
+          'payloadKeys=${info.length}',
+        );
+        return (
+          serverId: key.serverId,
+          itemId: key.itemId,
+          mediaSourceId: key.mediaSourceId,
+          startTimeTicks: key.startTimeTicks,
+          info: info,
+        );
+      } catch (e) {
+        AppLogger.debug(
+          _tag,
+          'fetch failed ${describePlaybackInfoPrefetchKey(key)}',
+          e,
+        );
+        return null;
+      } finally {
+        if (!disposed) {
+          cacheTimer = Timer(const Duration(minutes: 2), keepAlive.close);
+        }
+      }
+    });