fix(audio,sessions): unify audio playback state and improve session discovery

- move voice/audio players to single global audio engine with shared volume

- stop/reset previous track when switching to another media

- keep playback alive across chat switches via global audio element

- list refresh sessions by redis scan fallback when user session set is missing

app/auth/token_store.py

@@ -105,6 +105,26 @@ async def list_refresh_sessions_for_user(*, user_id: int) -> list[RefreshSession
     try:
         redis = get_redis_client()
         session_ids = await redis.smembers(f"auth:user_refresh:{user_id}")
+        if not session_ids:
+            cursor = 0
+            discovered: list[str] = []
+            while True:
+                cursor, keys = await redis.scan(cursor=cursor, match="auth:refresh:*", count=200)
+                for raw_key in keys:
+                    key = raw_key.decode("utf-8") if isinstance(raw_key, bytes) else str(raw_key)
+                    if not key.startswith("auth:refresh:"):
+                        continue
+                    jti = key.removeprefix("auth:refresh:")
+                    if not jti:
+                        continue
+                    owner = await redis.get(key)
+                    if owner and str(owner).isdigit() and int(owner) == user_id:
+                        discovered.append(jti)
+                if cursor == 0:
+                    break
+            if discovered:
+                await redis.sadd(f"auth:user_refresh:{user_id}", *discovered)
+                session_ids = {item.encode("utf-8") for item in discovered}
         sessions: list[RefreshSession] = []
         stale: list[str] = []
         for raw_jti in session_ids:

web/src/components/MessageList.tsx

@@ -956,88 +956,43 @@ async function downloadFileFromUrl(url: string): Promise<void> {
 }
 
 function AudioInlinePlayer({ src, title }: { src: string; title: string }) {
-  const audioRef = useRef<HTMLAudioElement | null>(null);
-  const activate = useAudioPlayerStore((s) => s.activate);
-  const detach = useAudioPlayerStore((s) => s.detach);
-  const setPlayingState = useAudioPlayerStore((s) => s.setPlaying);
-  const setVolumeState = useAudioPlayerStore((s) => s.setVolume);
-  const [isPlaying, setIsPlaying] = useState(false);
-  const [duration, setDuration] = useState(0);
-  const [position, setPosition] = useState(0);
-  const [volume, setVolume] = useState(1);
+  const track = useAudioPlayerStore((s) => s.track);
+  const isPlayingGlobal = useAudioPlayerStore((s) => s.isPlaying);
+  const durationGlobal = useAudioPlayerStore((s) => s.duration);
+  const positionGlobal = useAudioPlayerStore((s) => s.position);
+  const volumeGlobal = useAudioPlayerStore((s) => s.volume);
+  const playTrack = useAudioPlayerStore((s) => s.playTrack);
+  const togglePlayGlobal = useAudioPlayerStore((s) => s.togglePlay);
+  const seekToGlobal = useAudioPlayerStore((s) => s.seekTo);
+  const setVolumeGlobal = useAudioPlayerStore((s) => s.setVolume);
 
-  useEffect(() => {
-    const audio = audioRef.current;
-    if (!audio) return;
-
-    const onLoaded = () => {
-      setDuration(Number.isFinite(audio.duration) ? audio.duration : 0);
-    };
-    const onTime = () => {
-      setPosition(audio.currentTime || 0);
-    };
-    const onEnded = () => {
-      setIsPlaying(false);
-      setPlayingState(audio, false);
-    };
-    const onPlay = () => {
-      activate(audio, { src, title });
-      setPlayingState(audio, true);
-    };
-    const onPause = () => {
-      setPlayingState(audio, false);
-    };
-
-    audio.addEventListener("loadedmetadata", onLoaded);
-    audio.addEventListener("timeupdate", onTime);
-    audio.addEventListener("ended", onEnded);
-    audio.addEventListener("play", onPlay);
-    audio.addEventListener("pause", onPause);
-    return () => {
-      audio.removeEventListener("loadedmetadata", onLoaded);
-      audio.removeEventListener("timeupdate", onTime);
-      audio.removeEventListener("ended", onEnded);
-      audio.removeEventListener("play", onPlay);
-      audio.removeEventListener("pause", onPause);
-      detach(audio);
-    };
-  }, [activate, detach, setPlayingState, src, title]);
+  const isActiveTrack = track?.src === src;
+  const isPlaying = isActiveTrack && isPlayingGlobal;
+  const duration = isActiveTrack ? durationGlobal : 0;
+  const position = isActiveTrack ? positionGlobal : 0;
+  const volume = volumeGlobal;
 
   async function togglePlay() {
-    const audio = audioRef.current;
-    if (!audio) return;
-    if (isPlaying) {
-      audio.pause();
-      setIsPlaying(false);
+    if (isActiveTrack) {
+      await togglePlayGlobal();
       return;
     }
-    try {
-      activate(audio, { src, title });
-      await audio.play();
-      setIsPlaying(true);
-    } catch {
-      setIsPlaying(false);
-    }
+    await playTrack({ src, title });
   }
 
   function onSeek(nextValue: number) {
-    const audio = audioRef.current;
-    if (!audio) return;
-    audio.currentTime = nextValue;
-    setPosition(nextValue);
+    if (!isActiveTrack) {
+      return;
+    }
+    seekToGlobal(nextValue);
   }
 
   function onVolume(nextValue: number) {
-    const audio = audioRef.current;
-    if (!audio) return;
-    audio.volume = nextValue;
-    setVolume(nextValue);
-    setVolumeState(audio, nextValue);
+    setVolumeGlobal(nextValue);
   }
 
   return (
     <div className="rounded-lg border border-sky-500/40 bg-sky-600/20 px-2 py-1.5">
-      <audio ref={audioRef} preload="metadata" src={src} />
       <div className="flex items-center gap-2">
         <button
           className="inline-flex h-7 w-7 items-center justify-center rounded-full bg-slate-900/70 text-xs text-white hover:bg-slate-900"

web/src/store/audioPlayerStore.ts

@@ -10,48 +10,71 @@ interface AudioPlayerState {
   audioEl: HTMLAudioElement | null;
   isPlaying: boolean;
   volume: number;
-  activate: (audioEl: HTMLAudioElement, track: ActiveTrack) => void;
-  detach: (audioEl: HTMLAudioElement) => void;
-  setPlaying: (audioEl: HTMLAudioElement, isPlaying: boolean) => void;
-  setVolume: (audioEl: HTMLAudioElement, volume: number) => void;
+  duration: number;
+  position: number;
+  playTrack: (track: ActiveTrack) => Promise<void>;
   togglePlay: () => Promise<void>;
+  seekTo: (seconds: number) => void;
+  seekBy: (secondsDelta: number) => void;
+  setVolume: (volume: number) => void;
   stop: () => void;
 }
 
+let globalAudioEl: HTMLAudioElement | null = null;
+let isBound = false;
+
+function ensureAudio(): HTMLAudioElement {
+  if (globalAudioEl) {
+    return globalAudioEl;
+  }
+  globalAudioEl = new Audio();
+  globalAudioEl.preload = "metadata";
+  return globalAudioEl;
+}
+
 export const useAudioPlayerStore = create<AudioPlayerState>((set, get) => ({
   track: null,
-  audioEl: null,
+  audioEl: ensureAudio(),
   isPlaying: false,
   volume: 1,
-  activate: (audioEl, track) => {
-    set({
-      audioEl,
-      track,
-      isPlaying: !audioEl.paused,
-      volume: audioEl.volume ?? 1,
-    });
-  },
-  detach: (audioEl) => {
-    const current = get().audioEl;
-    if (current !== audioEl) {
-      return;
+  duration: 0,
+  position: 0,
+  playTrack: async (track) => {
+    const audio = ensureAudio();
+    if (!isBound) {
+      audio.addEventListener("timeupdate", () => {
+        set({ position: audio.currentTime || 0 });
+      });
+      audio.addEventListener("loadedmetadata", () => {
+        set({ duration: Number.isFinite(audio.duration) ? audio.duration : 0 });
+      });
+      audio.addEventListener("play", () => set({ isPlaying: true }));
+      audio.addEventListener("pause", () => set({ isPlaying: false }));
+      audio.addEventListener("ended", () => set({ isPlaying: false, position: 0 }));
+      isBound = true;
     }
-    set({ audioEl: null, track: null, isPlaying: false });
-  },
-  setPlaying: (audioEl, isPlaying) => {
-    if (get().audioEl !== audioEl) {
-      return;
+    const current = get().track;
+    if (current?.src !== track.src) {
+      audio.pause();
+      audio.currentTime = 0;
+      audio.src = track.src;
+      set({ track, position: 0, duration: 0 });
+    } else {
+      set({ track });
     }
-    set({ isPlaying });
-  },
-  setVolume: (audioEl, volume) => {
-    if (get().audioEl !== audioEl) {
-      return;
+    audio.volume = get().volume;
+    try {
+      await audio.play();
+      set({ isPlaying: true, audioEl: audio });
+    } catch {
+      set({ isPlaying: false, audioEl: audio });
     }
-    set({ volume });
   },
   togglePlay: async () => {
-    const audio = get().audioEl;
+    const audio = ensureAudio();
+    if (!audio.src) {
+      return;
+    }
     if (!audio) {
       return;
     }
@@ -63,12 +86,37 @@ export const useAudioPlayerStore = create<AudioPlayerState>((set, get) => ({
     audio.pause();
     set({ isPlaying: false });
   },
+  seekTo: (seconds) => {
+    const audio = ensureAudio();
+    if (!audio.src) {
+      return;
+    }
+    const target = Math.max(0, Math.min(Number.isFinite(audio.duration) ? audio.duration : seconds, seconds));
+    audio.currentTime = target;
+    set({ position: target });
+  },
+  seekBy: (secondsDelta) => {
+    const audio = ensureAudio();
+    if (!audio.src) {
+      return;
+    }
+    const duration = Number.isFinite(audio.duration) ? audio.duration : Number.MAX_SAFE_INTEGER;
+    const target = Math.max(0, Math.min(duration, (audio.currentTime || 0) + secondsDelta));
+    audio.currentTime = target;
+    set({ position: target });
+  },
+  setVolume: (volume) => {
+    const audio = ensureAudio();
+    const normalized = Math.max(0, Math.min(1, volume));
+    audio.volume = normalized;
+    set({ volume: normalized });
+  },
   stop: () => {
-    const audio = get().audioEl;
+    const audio = ensureAudio();
     if (audio) {
       audio.pause();
+      audio.currentTime = 0;
     }
-    set({ audioEl: null, track: null, isPlaying: false });
+    set({ audioEl: audio, track: null, isPlaying: false, position: 0, duration: 0 });
   },
 }));
-