No buffering rings at the end of short videos; links never guess an AniList show

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/desktop/lib/src/session/media_art.dart

@@ -51,7 +51,8 @@ Future<ArtBytes> jellyfinArt(JellyfinClient client, String itemId,
 Future<ArtBytes?> aniListArt(AniListClient aniList, String name,
     {Future<Uint8List?> Function(Uri url, Map<String, String> headers, int maxBytes) fetch = fetchImage}) async {
   final series = parseReleaseName(name).series.trim();
-  if (series.isEmpty) return null;
+  // "1", "2026-10-09": nothing a show could be called.
+  if (!RegExp(r'\p{L}', unicode: true).hasMatch(series)) return null;
   final match = await aniList.searchMedia(series);
   if (match == null) return null;
   Future<Uint8List?> get(String? url, int maxBytes) async {

apps/desktop/lib/src/session/session_coordinator.dart

@@ -1059,6 +1059,9 @@ class SessionCoordinator {
       final ArtBytes? bytes;
       if (ref != null && client != null) {
         bytes = await jellyfinArt(client, ref.itemId);
+      } else if (ref == null && (media.url ?? '').isNotEmpty) {
+        // A web link: its name is a URL tail ("1"), not a show; never guess.
+        bytes = null;
       } else {
         final name = ref == null ? media.name : jellyfinTitle(ref.title, ref.subtitle).$1;
         bytes = await aniListArt(_aniList ??= AniListClient(), name);

apps/desktop/test/schedule_anilist_test.dart

@@ -208,6 +208,8 @@ void main() {
     expect(art.banner, jpeg);
     expect(asked, unorderedEquals(['https://img/xl.jpg', 'https://img/banner.jpg', 'https://img/l.jpg']));
     expect(await aniListArt(c, 'Nothing Like It.mkv', fetch: (_, _, _) async => jpeg), isNull);
+    // A link tail like ".../video/1" names no show: no AniList search at all.
+    expect(await aniListArt(c, '1', fetch: (_, _, _) async => jpeg), isNull);
     c.close();
   });
 

docs/ARCHITECTURE.md

@@ -662,8 +662,8 @@ always scrolls the page). Space never presses a focused button
   the controls: `playerStatusFor` (pure) picks the most pressing of
   removed, reconnecting (Cancel), a warn/error health message (Retry),
   connecting (only after 2 s), finished, someone loading (below
-  `StateBroadcast.bufferNeed`, the gate's own need: less near the end,
-  none at finished; their avatar with the progress round it), you not
+  `StateBroadcast.bufferNeed`, the gate's own need at the current
+  position: less near the end, none at finished; their avatar with the progress round it), you not
   ready (a click marks you ready) and who everyone waits for (avatars,
   "2/3 ready"); nothing otherwise, info never. 34 px avatars, a main line
   and a muted detail line. Frosted glass, colour only for problems; it fades through

packages/core/lib/src/protocol.dart

@@ -559,12 +559,17 @@ class StateBroadcast {
   /// Buffer an in-set member needs before playback can go on, as the
   /// server's gate counts it: [RelayConstants.minBufferSecs], less near the
   /// end (mpv cannot buffer past it), none once finished.
-  double get bufferNeed {
+  double get bufferNeed => bufferNeedAt(DateTime.now().toUtc());
+
+  /// [bufferNeed] at [now]: while playing the position has moved on since
+  /// [serverTime] (the local clock is close enough for this).
+  double bufferNeedAt(DateTime now) {
     if (transport == 'finished') return 0;
     final d = (media?['duration'] as num?)?.toDouble() ?? 0;
     const full = RelayConstants.minBufferSecs;
     if (d <= 0) return full;
-    return (d - position - RelayConstants.endSlackSecs).clamp(0.0, full).toDouble();
+    final moved = transport == 'playing' ? now.difference(serverTime).inMilliseconds / 1000 : 0;
+    return (d - (position + moved) - RelayConstants.endSlackSecs).clamp(0.0, full).toDouble();
   }
 
   final int eventId;

packages/core/test/core_test.dart

@@ -193,4 +193,21 @@ void main() {
       expect((r.duration, r.mediaId), (0.0, 0));
     });
   });
+
+  test('bufferNeed counts the time played since the last event', () {
+    final t0 = DateTime.utc(2026, 1, 1);
+    final s = StateBroadcast(
+      eventId: 1,
+      transport: 'playing',
+      position: 0,
+      serverTime: t0,
+      mediaId: 1,
+      media: const {'name': 'clip', 'duration': 6.0},
+      members: const [],
+    );
+    expect(s.bufferNeedAt(t0), 4.0);
+    // 3 s in: 3 s left, minus the 2 s end slack.
+    expect(s.bufferNeedAt(t0.add(const Duration(seconds: 3))), closeTo(1.0, 1e-9));
+    expect(s.bufferNeedAt(t0.add(const Duration(seconds: 5))), 0);
+  });
 }