mirror of
https://github.com/Psychotoxical/psysonic.git
synced 2026-07-22 07:15:47 +00:00
Frank Stellmacher
08d098d5aa
The `LOUDNESS_BACKFILL_WINDOW_AHEAD` constant, the predicate `isTrackInsideLoudnessBackfillWindow`, and the id-list collector `collectLoudnessBackfillWindowTrackIds` move into `src/store/loudnessBackfillWindow.ts`. `isTrackInsideLoudnessBackfillWindow` was rewritten to be pure — it now takes the queue / queueIndex / currentTrack as explicit parameters instead of reading `usePlayerStore.getState()` internally. The one call site in `refreshLoudnessForTrack` reads state once and passes it through. Net: zero behaviour change, clearer test surface (no store mocks), no top-level coupling back to playerStore. `prefetchLoudnessForEnqueuedTracks` stays in playerStore — it calls `refreshLoudnessForTrack` which lives there too. 13 focused tests pin the window-slides-with-queueIndex contract, the clamp at the end of the queue, the empty-input fallbacks, and the duplicate collapse when currentTrack is also in the ahead range. playerStore 3261 → 3238 LOC.
49 lines
1.7 KiB
TypeScript
49 lines
1.7 KiB
TypeScript
import type { Track } from './playerStore';
|
|
|
|
/**
|
|
* After a bulk enqueue (queue replace, append-many, lucky-mix) the runtime
|
|
* warms the loudness cache for the current track + the next N entries so
|
|
* the engine's `audio_chain_preload` sees a real cached gain instead of
|
|
* the startup trim. These helpers compute that window — both as a
|
|
* "does this id sit inside it?" predicate and as the explicit id list
|
|
* the prefetch loop iterates over.
|
|
*
|
|
* Pure functions of the state slice — no store imports, no side effects.
|
|
* The caller passes the queue + index + current track so the test surface
|
|
* stays trivial and there's no top-level coupling back to playerStore.
|
|
*/
|
|
export const LOUDNESS_BACKFILL_WINDOW_AHEAD = 5;
|
|
|
|
export function isTrackInsideLoudnessBackfillWindow(
|
|
trackId: string,
|
|
queue: Track[],
|
|
queueIndex: number,
|
|
currentTrack: Track | null,
|
|
): boolean {
|
|
if (!trackId) return false;
|
|
if (currentTrack?.id === trackId) return true;
|
|
if (queue.length === 0) return false;
|
|
const start = Math.max(0, queueIndex + 1);
|
|
const end = Math.min(queue.length, start + LOUDNESS_BACKFILL_WINDOW_AHEAD);
|
|
for (let i = start; i < end; i++) {
|
|
if (queue[i]?.id === trackId) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
export function collectLoudnessBackfillWindowTrackIds(
|
|
queue: Track[],
|
|
queueIndex: number,
|
|
currentTrack: Track | null,
|
|
): string[] {
|
|
const ids = new Set<string>();
|
|
if (currentTrack?.id) ids.add(currentTrack.id);
|
|
const start = Math.max(0, queueIndex + 1);
|
|
const end = Math.min(queue.length, start + LOUDNESS_BACKFILL_WINDOW_AHEAD);
|
|
for (let i = start; i < end; i++) {
|
|
const tid = queue[i]?.id;
|
|
if (tid) ids.add(tid);
|
|
}
|
|
return Array.from(ids);
|
|
}
|