refactor(playback): move the audio engine into features/playback

Relocate the playback/queue/transport/audio-output engine out of the type-first
store/ + utils/playback/ + utils/audio/ dirs into a cohesive src/features/playback/,
structure-preserving:
  store/<x>                    -> features/playback/store/<x>
  store/audioListenerSetup/<x> -> features/playback/store/audioListenerSetup/<x>
  utils/playback/<x>           -> features/playback/utils/playback/<x>
  utils/audio/<x>              -> features/playback/utils/audio/<x>

184 files moved (107 source + 77 tests), 365 consumers rewritten. Pure move — no
behavior change, no state-split (the playerStore state-split stays a separate M5
question). Enabled by this session's decouple seams (artist/offline/orbit/auth →
core registries), so the engine carries no inbound core->feature inversion: store/
now holds only the 50 cross-cutting global stores (auth family, the seams, library
index, UI/settings stores).

KEPT OUT of the move (would re-create global->engine edges): the 3 pure config
helpers utils/audio/{loudnessPreAnalysisSlider,hiResCrossfadeResample} +
utils/playback/autodjOverlapCap (authStore + settings UI read them — they stay in
utils/). Ambiguous view-state stores (eqStore, queueToolbarStore,
playerBarLayoutStore) stay global (no engine imports).

Consumers use DEEP paths (@/features/playback/...), no barrel — matches the lib/
approach and avoids barrel-mock-collapse across the 140 usePlayerStore consumers.
Two tolerated type-only core->feature edges remain (localPlaybackStore->QueueItemRef,
localPlaybackMigration->HotCacheEntry, both erased).

tsc 0, lint 0, full suite 319/2353 green, iron-rule clean (no runtime store->feature
import). Behavior-touching only via the prerequisite bridge seam (already QA-flagged);
the move itself is pure.
This commit is contained in:
Psychotoxical
2026-06-30 15:00:20 +02:00
parent 6651abbc6f
commit cb1a110afb
393 changed files with 1127 additions and 1127 deletions
@@ -0,0 +1,656 @@
import { playbackReportStart, playbackReportStopped } from '@/features/playback/store/playbackReportSession';
import { invoke } from '@tauri-apps/api/core';
import { getMusicNetworkRuntimeOrNull } from '@/music-network';
import { setDeferHotCachePrefetch } from '@/utils/cache/hotCacheGate';
import { orbitBulkGuard, orbitSnapshot } from '@/store/orbitRuntime';
import { sameQueueTrackId } from '@/features/playback/utils/playback/queueIdentity';
import {
computeAutodjManualBlendPlan,
shouldAutodjInterruptBlend,
} from '@/features/playback/utils/playback/autodjManualBlend';
import type { CrossfadeTransitionPlan } from '@/utils/waveform/waveformSilence';
import {
armInterruptHandoff,
clearInterruptHandoff,
runInterruptBlendPrep,
shouldDeferInterruptHandoffUi,
} from '@/features/playback/utils/playback/autodjInterruptPrep';
import { isCrossfadeNextReady } from '@/features/playback/store/crossfadePreload';
import { STANDARD_BLEND_SEC } from '@/utils/waveform/waveformSilence';
import { armAutodjMixing, clearAutodjTransitionUi } from '@/features/playback/store/autodjTransitionUi';
import {
bindQueueServerForTracks,
getPlaybackCacheServerKey,
getPlaybackIndexKey,
playbackCacheKeyForTrack,
playbackProfileIdForTrack,
shouldBindQueueServerForPlay,
} from '@/features/playback/utils/playback/playbackServer';
import { stampTrackServerId, stampTrackServerIds } from '@/features/playback/utils/playback/trackServerScope';
import {
findLocalPlaybackUrl,
hasLocalPersistentPlaybackBytes,
} from '@/store/localPlaybackResolve';
import { resolvePlaybackUrl } from '@/features/playback/utils/playback/resolvePlaybackUrl';
import { resolveReplayGainDb } from '@/features/playback/utils/audio/resolveReplayGainDb';
import { audioPlayHiResBlendArgs } from '@/utils/audio/hiResCrossfadeResample';
import { useAuthStore } from '@/store/authStore';
import { consumeCrossfadeDynamicOverlap, getCrossfadeTransition, peekArmedCrossfadeDynamicOverlap } from '@/features/playback/store/crossfadeTrimCache';
import {
bumpPlayGeneration,
getPlayGeneration,
setIsAudioPaused,
} from '@/features/playback/store/engineState';
import {
clearPreloadingIds,
getLastGaplessSwitchTime,
} from '@/features/playback/store/gaplessPreloadState';
import { touchHotCacheOnPlayback } from '@/features/playback/store/hotCacheTouch';
import {
isReplayGainActive,
loudnessGainDbForEngineBind,
} from '@/features/playback/store/loudnessGainCache';
import { refreshLoudnessForTrack } from '@/features/playback/store/loudnessRefresh';
import { fetchWaveformBins, refreshWaveformForTrack } from '@/features/playback/store/waveformRefresh';
import { deriveNormalizationSnapshot } from '@/features/playback/store/normalizationSnapshot';
import {
playbackSourceHintForResolvedUrl,
recordEnginePlayUrl,
} from '@/features/playback/store/playbackUrlRouting';
import type { PlayerState, Track } from '@/features/playback/store/playerStoreTypes';
import { toQueueItemRefs } from '@/utils/library/queueItemRef';
import { getQueueTracksView, resolveQueueTrack } from '@/utils/library/queueTrackView';
import { seedQueueResolver } from '@/utils/library/queueTrackResolver';
import { promoteCompletedStreamToHotCache } from '@/features/playback/store/promoteStreamCache';
import { pushQueueOnPlaybackStart } from '@/features/playback/store/queueSync';
import { playListenSessionFinalize } from '@/features/playback/store/playListenSession';
import { pushQueueUndoFromGetter } from '@/features/playback/store/queueUndo';
import { appendTimelineLeaveTrack } from '@/features/playback/store/timelineSessionHistory';
import { stopRadio } from '@/features/playback/store/radioPlayer';
import { clearAllPlaybackScheduleTimers } from '@/features/playback/store/scheduleTimers';
import { clearSeekDebounce } from '@/features/playback/store/seekDebounce';
import {
clearSeekFallbackRetry,
getSeekFallbackVisualTarget,
setSeekFallbackRestartAt,
setSeekFallbackTrackId,
setSeekFallbackVisualTarget,
} from '@/features/playback/store/seekFallbackState';
import {
clearSeekTarget,
setSeekTarget,
} from '@/features/playback/store/seekTargetState';
type SetState = (
partial: Partial<PlayerState> | ((state: PlayerState) => Partial<PlayerState>),
) => void;
type GetState = () => PlayerState;
/**
* Play a track, optionally replacing the queue and/or jumping to an
* explicit slot. Three guard layers run before the actual play body:
*
* 1. **Orbit bulk-gate** — when `queue.length > 1` and isn't a no-op
* replace of the current queue, prompt via `orbitBulkGuard`; on
* confirm, hosts/guests append (Orbit semantics — bulk replace
* would drop guest suggestions) and non-Orbit users replace as
* normal.
* 2. **Orbit-host single-track protection** — a `playTrack(track,
* [track])` from a host would blow away the shared queue; re-route
* to append-and-jump so guest suggestions survive.
* 3. **Ghost-command guard** — a playTrack arriving within 500 ms of
* the last gapless switch is almost certainly a stale IPC echo.
*
* The play body itself: clears all scheduled timers + seek state,
* resolves the URL, updates store + normalization snapshot
* optimistically, invokes the Rust engine, and on success seeks to
* the visual target if there was a pending one. Falls back to
* `next(false)` 500 ms after an `audio_play` failure. Same-track
* replays first flush the previous play's `stream_completed_cache`
* to hot disk so `fetch_data` doesn't re-run an HTTP range request.
*/
export function runPlayTrack(
set: SetState,
get: GetState,
track: Track,
queue: Track[] | undefined,
manual: boolean,
_orbitConfirmed: boolean,
targetQueueIndex: number | undefined,
): void {
// Orbit bulk-gate: only gate when the `queue` argument *replaces*
// the current queue (Play All / Play Album / Play Playlist / Hero
// play buttons). Navigation calls — queue-row click, next(),
// previous() — pass the existing queue back through playTrack just
// to move the index; they are not bulk operations and must not
// trigger the confirm dialog (#234 regression).
if (!_orbitConfirmed && queue && queue.length > 1) {
const current = get().queueItems;
const sameAsCurrent = queue.length === current.length
&& queue.every((t, i) => sameQueueTrackId(current[i]?.trackId, t.id));
if (!sameAsCurrent) {
void orbitBulkGuard(queue.length).then(ok => {
if (!ok) return;
// Inside an Orbit session a bulk replace would discard guest
// suggestions mid-listen. Append instead — the dialog's
// "Add them all" copy already matches that semantic. Outside
// Orbit, proceed as a normal replace.
const role = orbitSnapshot().role;
if (role === 'host' || role === 'guest') {
get().enqueue(queue, true);
} else {
get().playTrack(track, queue, manual, true);
}
});
return;
}
}
// Orbit-host single-track protection. The host's `playerStore.queue`
// *is* the shared Orbit queue. A `playTrack(track, [track])` call
// (e.g. OfflineLibrary's "Play this album" on a single-track album,
// or any other surface that explicitly passes a 1-track replacement
// queue) would otherwise blow away every guest suggestion + every
// upcoming track. Re-route to append + jump so the queue survives.
// Guest stays unguarded — a guest clicking Play locally is choosing
// to opt out of host-sync, which is the existing "guest is running
// their own show" path. `useOrbitGuest`'s `syncToHost` is also a
// guest-only call site, so it's never intercepted here.
if (!_orbitConfirmed && queue && queue.length === 1) {
const orbitRole = orbitSnapshot().role;
if (orbitRole === 'host') {
const currentItems = get().queueItems;
const currentTrackId = currentItems[get().queueIndex]?.trackId;
if (track.id !== currentTrackId) {
const existsAt = currentItems.findIndex(r => sameQueueTrackId(r.trackId, track.id));
if (existsAt >= 0) {
// Re-jump within the existing queue: pass undefined so playTrack keeps
// the canonical queueItems and just moves the index.
get().playTrack(track, undefined, manual, true, existsAt);
} else {
// Append the single track to the resolved current queue and jump to it.
const newQueue = [...getQueueTracksView(currentItems), track];
get().playTrack(track, newQueue, manual, true, newQueue.length - 1);
}
return;
}
}
}
// Ghost-command guard: if a gapless switch happened within 500 ms,
// this playTrack call is likely a stale IPC echo — suppress it.
if (Date.now() - getLastGaplessSwitchTime() < 500) {
return;
}
void playListenSessionFinalize('skip');
const stateBeforeLeave = get();
const prevTrackForHistory = stateBeforeLeave.currentTrack;
const scopedTrackEarly = stampTrackServerId(track);
if (
prevTrackForHistory
&& !sameQueueTrackId(prevTrackForHistory.id, scopedTrackEarly.id)
) {
appendTimelineLeaveTrack(
prevTrackForHistory,
stateBeforeLeave.queueItems,
stateBeforeLeave.queueIndex,
);
}
const scopedTrack = scopedTrackEarly;
const scopedQueue = queue ? stampTrackServerIds(queue) : queue;
clearAllPlaybackScheduleTimers();
set({ scheduledPauseAtMs: null, scheduledPauseStartMs: null, scheduledResumeAtMs: null, scheduledResumeStartMs: null });
const gen = bumpPlayGeneration();
clearInterruptHandoff();
setIsAudioPaused(false);
clearPreloadingIds(); // new track — allow fresh preload for next
clearSeekDebounce(); clearSeekTarget();
clearSeekFallbackRetry();
setSeekFallbackRestartAt(0);
// If a radio stream is active, stop it before the new track starts so
// the PlayerBar clears radio mode immediately and the stream is released.
if (get().currentRadio) {
stopRadio();
}
const state = get();
const wasPlayingBeforeSkip = state.isPlaying;
const skipFromTimeSec = state.currentTime;
const outgoingWaveformBins = state.waveformBins;
const prevTrack = state.currentTrack;
if (prevTrack?.id !== scopedTrack.id) {
setSeekFallbackTrackId(null);
}
const visualOnEntry = getSeekFallbackVisualTarget();
if (visualOnEntry?.trackId !== scopedTrack.id) {
setSeekFallbackVisualTarget(null);
}
// Thin-state: only a real queue *replacement* (explicit `queue` arg) rebuilds
// queueItems. A no-arg navigation (next/previous/queue-row jump) keeps the
// canonical refs and just moves the index — so we never resolve the whole
// queue here (O(visible), not O(queue length)), which would hitch + churn
// every subscriber on each track change at scale.
const replacing = scopedQueue !== undefined;
const srcLen = replacing ? scopedQueue.length : state.queueItems.length;
if (replacing && shouldBindQueueServerForPlay(state.queueItems, scopedQueue, scopedQueue)) {
bindQueueServerForTracks(scopedQueue);
}
// Prefer an explicit target index from the caller (next/previous/queue-row
// click already know the exact slot). `findIndex` returns the *first*
// matching id, which jumps backwards when the queue contains the same
// track twice — breaking radio playback (issue #500).
const matchesAt = (i: number): boolean =>
replacing
? sameQueueTrackId(scopedQueue[i]?.id, scopedTrack.id)
: sameQueueTrackId(state.queueItems[i]?.trackId, scopedTrack.id);
const explicitIdxValid =
typeof targetQueueIndex === 'number'
&& targetQueueIndex >= 0
&& targetQueueIndex < srcLen
&& matchesAt(targetQueueIndex);
const idx = explicitIdxValid
? (targetQueueIndex as number)
: replacing
? scopedQueue.findIndex(t => sameQueueTrackId(t.id, scopedTrack.id))
: state.queueItems.findIndex(r => sameQueueTrackId(r.trackId, scopedTrack.id));
const playIdx = idx >= 0 ? idx : 0;
const playingRef = replacing ? undefined : state.queueItems[playIdx];
const prevPlayingRef = replacing ? undefined : state.queueItems[state.queueIndex];
const prevPlaybackSid = prevTrack && prevPlayingRef
? playbackProfileIdForTrack(prevTrack, prevPlayingRef) ?? ''
: '';
const nextPlaybackSid = playbackProfileIdForTrack(scopedTrack, playingRef) ?? '';
if (
prevTrack
&& !sameQueueTrackId(prevTrack.id, scopedTrack.id)
&& prevPlaybackSid
&& nextPlaybackSid
&& prevPlaybackSid !== nextPlaybackSid
) {
void playbackReportStopped(skipFromTimeSec);
}
// ±1 neighbours for replaygain normalization — resolve only these (not the
// whole queue). On replace they come from the provided Track[]; on navigation
// from the resolver cache (the bridge keeps that window warm).
const neighbourAt = (i: number): Track | null => {
if (i < 0 || i >= srcLen) return null;
if (replacing) return scopedQueue[i] ?? null;
if (i === playIdx) return scopedTrack;
const ref = state.queueItems[i];
return ref ? resolveQueueTrack(ref) : null;
};
const prevNeighbour = neighbourAt(playIdx - 1);
const nextNeighbour = neighbourAt(playIdx + 1);
// Minimal window so deriveNormalizationSnapshot reads ±1 without a full array.
const normWindow: Track[] = prevNeighbour ? [prevNeighbour] : [];
const normIdx = normWindow.length;
normWindow.push(scopedTrack);
if (nextNeighbour) normWindow.push(nextNeighbour);
if (manual) {
pushQueueUndoFromGetter(get);
}
const visualForInitial = getSeekFallbackVisualTarget();
const pendingVisualTarget = visualForInitial?.trackId === scopedTrack.id
? visualForInitial.seconds
: null;
const initialTime = pendingVisualTarget !== null
? Math.max(0, Math.min(pendingVisualTarget, scopedTrack.duration || pendingVisualTarget))
: 0;
const initialProgress =
scopedTrack.duration && scopedTrack.duration > 0
? Math.max(0, Math.min(1, initialTime / scopedTrack.duration))
: 0;
const authState = useAuthStore.getState();
const playbackProfileId = playbackProfileIdForTrack(scopedTrack, playingRef);
const libraryLocalUrl = playbackProfileId
? findLocalPlaybackUrl(scopedTrack.id, playbackProfileId, 'library')
: null;
// Same-track replay: Rust `fetch_data` consumes `stream_completed_cache` with
// `take()` once; a second replay would full HTTP-range again unless we flush
// RAM to hot disk first (promote was only run when switching to another track).
const needSameTrackHotPromote =
!libraryLocalUrl
&& !(playbackProfileId && hasLocalPersistentPlaybackBytes(scopedTrack.id, playbackProfileId))
&& Boolean(
prevTrack
&& sameQueueTrackId(prevTrack.id, scopedTrack.id)
&& authState.hotCacheEnabled
&& getPlaybackCacheServerKey(),
);
const runPlayTrackBody = () => {
const authStateNow = useAuthStore.getState();
const playbackSid = playbackProfileIdForTrack(scopedTrack, playingRef);
const playbackCacheSid = playbackCacheKeyForTrack(scopedTrack, playingRef);
const url = libraryLocalUrl
?? findLocalPlaybackUrl(scopedTrack.id, playbackSid, 'library')
?? findLocalPlaybackUrl(scopedTrack.id, playbackSid, 'favorite-auto')
?? resolvePlaybackUrl(scopedTrack.id, playbackCacheSid);
recordEnginePlayUrl(scopedTrack.id, url);
const preloadedTrackId = get().enginePreloadedTrackId;
const keepPreloadHint = preloadedTrackId === scopedTrack.id;
const playbackSourceHint = playbackSourceHintForResolvedUrl(
scopedTrack.id,
playbackCacheSid,
url,
);
if (import.meta.env.DEV) {
console.info('[psysonic][playTrack-source]', {
trackId: scopedTrack.id,
resolvedUrl: url,
preloadedTrackId,
keepPreloadHint,
playbackSourceHint,
});
}
// Set state immediately so the UI updates before the download completes.
// currentRadio: null ensures the PlayerBar switches out of radio mode right away.
const queueSid = get().queueServerId ?? '';
// When the caller replaced the queue (explicit `queue` arg), seed the
// resolver with those tracks so the UI / hot paths resolve them without a
// network round-trip. No-arg jumps reuse already-cached refs.
if (scopedQueue) {
for (const t of scopedQueue) {
const sid = playbackCacheKeyForTrack(t);
if (sid) seedQueueResolver(sid, [t]);
}
} else if (queueSid) {
seedQueueResolver(queueSid, [scopedTrack]);
}
const hasJsAutoHandoff = !manual && peekArmedCrossfadeDynamicOverlap(scopedTrack.id);
const wantInterruptBlend = Boolean(
shouldAutodjInterruptBlend(wasPlayingBeforeSkip, hasJsAutoHandoff)
&& prevTrack
&& !sameQueueTrackId(prevTrack.id, scopedTrack.id),
);
const bReadyNow = isCrossfadeNextReady(scopedTrack.id, playbackSid, playbackCacheSid);
/** Cold interrupt: engine still on A — don't swap player-bar metadata until handoff. */
const deferInterruptUi = shouldDeferInterruptHandoffUi(wantInterruptBlend, bReadyNow);
const applyInterruptHandoffUi = () => {
set({
currentTrack: scopedTrack,
waveformBins: null,
...deriveNormalizationSnapshot(scopedTrack, normWindow, normIdx),
progress: initialProgress,
buffered: 0,
currentTime: initialTime,
scrobbled: false,
networkLoved: false,
isPlaying: playbackSourceHint !== 'stream',
isPlaybackBuffering: playbackSourceHint === 'stream',
currentPlaybackSource: playbackSourceHint,
enginePreloadedTrackId: keepPreloadHint ? scopedTrack.id : null,
});
void refreshWaveformForTrack(scopedTrack.id);
void refreshLoudnessForTrack(scopedTrack.id, { syncPlayingEngine: false });
};
if (deferInterruptUi) {
set({
currentRadio: null,
...(replacing ? { queueItems: toQueueItemRefs(queueSid, scopedQueue) } : {}),
queueIndex: idx >= 0 ? idx : 0,
});
} else {
set({
currentTrack: scopedTrack,
currentRadio: null,
waveformBins: null,
...deriveNormalizationSnapshot(scopedTrack, normWindow, normIdx),
// Only a replace rewrites the queue; navigation keeps the canonical refs.
...(replacing ? { queueItems: toQueueItemRefs(queueSid, scopedQueue) } : {}),
queueIndex: idx >= 0 ? idx : 0,
progress: initialProgress,
buffered: 0,
currentTime: initialTime,
scrobbled: false,
networkLoved: false,
// HTTP stream: wait for Rust `audio:playing` so the seekbar does not
// extrapolate while RangedHttpSource / legacy reader is still buffering.
// During interrupt prep A is still audible — keep the play affordance on.
isPlaying: (wantInterruptBlend && wasPlayingBeforeSkip) || playbackSourceHint !== 'stream',
isPlaybackBuffering: wantInterruptBlend && wasPlayingBeforeSkip
? false
: playbackSourceHint === 'stream',
currentPlaybackSource: playbackSourceHint,
enginePreloadedTrackId: keepPreloadHint ? scopedTrack.id : null,
});
void refreshWaveformForTrack(scopedTrack.id);
void refreshLoudnessForTrack(
scopedTrack.id,
wantInterruptBlend ? { syncPlayingEngine: false } : undefined,
);
}
setDeferHotCachePrefetch(true);
if (
prevTrack
&& !sameQueueTrackId(prevTrack.id, scopedTrack.id)
&& authStateNow.hotCacheEnabled
) {
const prevPromoteSid = playbackCacheKeyForTrack(prevTrack, prevPlayingRef);
if (prevPromoteSid) {
void promoteCompletedStreamToHotCache(
prevTrack,
prevPromoteSid,
authStateNow.hotCacheDownloadDir || null,
);
}
}
const replayGainDb = resolveReplayGainDb(
scopedTrack, prevTrack, nextNeighbour,
isReplayGainActive(), authStateNow.replayGainMode,
);
const replayGainPeak = isReplayGainActive() ? (scopedTrack.replayGainPeak ?? null) : null;
const invokeAudioPlay = (manualBlend: CrossfadeTransitionPlan | null) => {
// Silence-aware crossfade (B-head + dynamic overlap): on a fresh auto-advance
// under crossfade, start past this track's leading silence (always, from the
// plan) and — only when the JS A-tail advance positioned this transition —
// fade over the content-driven overlap it armed. AutoDJ smooth skip uses the
// same rules from the current playback position on manual next/previous.
const useTrimAuto =
!manual
&& authStateNow.crossfadeEnabled
&& authStateNow.crossfadeTrimSilence
&& !authStateNow.gaplessEnabled
&& initialTime <= 0.05;
const useManualBlend = manualBlend !== null;
const crossfadePlan = useTrimAuto ? getCrossfadeTransition(scopedTrack.id) : null;
const armedOverlap = useTrimAuto ? consumeCrossfadeDynamicOverlap(scopedTrack.id) : null;
const crossfadeStartSecs = useManualBlend
? manualBlend.bStartSec
: (crossfadePlan?.bStartSec ?? 0);
const crossfadeSecsOverride = useManualBlend
? manualBlend.overlapSec
: (armedOverlap ? armedOverlap.overlapSec : null);
const outgoingFadeSecsOverride = useManualBlend
? manualBlend.outgoingFadeSec
: (armedOverlap ? armedOverlap.outgoingFadeSec : null);
if (useManualBlend) {
armAutodjMixing(manualBlend.overlapSec);
} else if (crossfadeSecsOverride != null && crossfadeSecsOverride > 0) {
armAutodjMixing(crossfadeSecsOverride);
} else if (manual) {
clearAutodjTransitionUi();
}
invoke('audio_play', {
url,
volume: state.volume,
durationHint: scopedTrack.duration,
replayGainDb,
replayGainPeak,
loudnessGainDb: loudnessGainDbForEngineBind(scopedTrack.id),
preGainDb: authStateNow.replayGainPreGainDb,
fallbackDb: authStateNow.replayGainFallbackDb,
manual,
...audioPlayHiResBlendArgs(authStateNow),
analysisTrackId: scopedTrack.id,
serverId: getPlaybackIndexKey() || null,
streamFormatSuffix: scopedTrack.suffix ?? null,
startPaused: false,
startSecs: crossfadeStartSecs > 0.05 ? crossfadeStartSecs : null,
crossfadeSecsOverride,
outgoingFadeSecsOverride,
manualAutodjBlend: useManualBlend ? true : null,
})
.then(() => {
if (getPlayGeneration() !== gen) return;
if (wantInterruptBlend) {
get().updateReplayGainForCurrentTrack();
}
if (keepPreloadHint) {
set({ enginePreloadedTrackId: null });
}
const durSeek = scopedTrack.duration && scopedTrack.duration > 0 ? scopedTrack.duration : null;
const seekTo = initialTime;
const canSeekAfterPlay =
seekTo > 0.05 && (durSeek == null || seekTo < durSeek - 0.05);
if (canSeekAfterPlay) {
void invoke('audio_seek', { seconds: seekTo })
.then(() => {
if (getPlayGeneration() !== gen) return;
setSeekTarget(seekTo);
if (getSeekFallbackVisualTarget()?.trackId === scopedTrack.id) {
setSeekFallbackVisualTarget(null);
}
})
.catch(() => {
if (getSeekFallbackVisualTarget()?.trackId === scopedTrack.id) {
setSeekFallbackVisualTarget(null);
}
});
}
})
.catch((err: unknown) => {
if (getPlayGeneration() !== gen) return;
setDeferHotCachePrefetch(false);
console.error('[psysonic] audio_play failed:', err);
set({ isPlaying: false });
setTimeout(() => {
if (getPlayGeneration() !== gen) return;
get().next(false);
}, 500);
});
};
const finishPlaybackSideEffects = () => {
// Subsonic-server now-playing follows nowPlayingEnabled; Music Network
// now-playing follows scrobbling, as Last.fm now-playing did (runtime gates
// internally). playbackReportStart opens the live FSM on extension-capable
// servers and falls back to the legacy presence call otherwise.
playbackReportStart(scopedTrack.id, playbackSid);
const runtime = getMusicNetworkRuntimeOrNull();
void runtime?.dispatchNowPlaying({
title: scopedTrack.title,
artist: scopedTrack.artist,
album: scopedTrack.album,
duration: scopedTrack.duration,
timestamp: Date.now(),
});
if (runtime?.getEnrichmentPrimaryId()) {
void runtime
.isTrackLoved({ title: scopedTrack.title, artist: scopedTrack.artist })
.then(loved => {
const cacheKey = `${scopedTrack.title}::${scopedTrack.artist}`;
set(s => ({
networkLoved: loved,
networkLovedCache: { ...s.networkLovedCache, [cacheKey]: loved },
}));
});
}
pushQueueOnPlaybackStart(get().queueItems, scopedTrack, initialTime);
touchHotCacheOnPlayback(scopedTrack.id, playbackCacheSid);
};
const startAudio = (manualBlend: CrossfadeTransitionPlan | null) => {
if (deferInterruptUi) applyInterruptHandoffUi();
clearInterruptHandoff();
invokeAudioPlay(manualBlend);
finishPlaybackSideEffects();
};
if (wantInterruptBlend && prevTrack) {
const aDur = prevTrack.duration || 0;
armAutodjMixing(STANDARD_BLEND_SEC);
armInterruptHandoff(gen);
void (async () => {
try {
const [prep, bBins] = await Promise.all([
bReadyNow
? Promise.resolve({ ready: true })
: runInterruptBlendPrep(
scopedTrack,
playbackSid,
playbackCacheSid,
() => getPlayGeneration() !== gen,
),
fetchWaveformBins(scopedTrack.id, playbackCacheSid || null),
]);
if (getPlayGeneration() !== gen) {
clearInterruptHandoff();
return;
}
const blend = prep.ready
? computeAutodjManualBlendPlan(
outgoingWaveformBins,
aDur,
skipFromTimeSec,
bBins,
scopedTrack.duration || 0,
)
: null;
startAudio(blend
? {
...blend,
// Prep fade already ducked A when we waited for a cold B.
outgoingFadeSec: bReadyNow ? blend.outgoingFadeSec : 0,
}
: null);
} catch {
if (getPlayGeneration() !== gen) {
clearInterruptHandoff();
return;
}
startAudio(null);
}
})();
return;
}
startAudio(null);
};
const hotPromoteSid = getPlaybackCacheServerKey();
if (needSameTrackHotPromote && hotPromoteSid) {
void promoteCompletedStreamToHotCache(
scopedTrack,
hotPromoteSid,
authState.hotCacheDownloadDir || null,
)
.then(() => {
if (getPlayGeneration() !== gen) return;
runPlayTrackBody();
})
.catch((err: unknown) => {
if (getPlayGeneration() !== gen) return;
setDeferHotCachePrefetch(false);
console.error('[psysonic] same-track hot promote / play body failed:', err);
set({ isPlaying: false });
});
} else {
runPlayTrackBody();
}
}