mirror of
https://github.com/Psychotoxical/psysonic.git
synced 2026-07-21 23:05:46 +00:00
Frank Stellmacher
7a7a9f5e6b
111 of 122 top-level src/utils/ files move into 16 topic folders (audio, cache, cover, share, server, playback, playlist, deviceSync, waveform, mix, format, export, changelog, ui, perf, componentHelpers). True singletons with no cluster stay at the utils/ root. Pure file-move: a path-aware codemod rewrote 539 relative-import specifiers across 275 files; no logic touched. The hot-path coverage gate list (.github/frontend-hot-path-files.txt) is updated to the new paths for the 11 gated utils files — a mechanical consequence of the move, not a CI change. tsc is green.
51 lines
2.0 KiB
TypeScript
51 lines
2.0 KiB
TypeScript
import type { PlayerState, Track } from './playerStoreTypes';
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import { useAuthStore } from './authStore';
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import { resolveReplayGainDb } from '../utils/audio/resolveReplayGainDb';
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/**
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* Compute the normalization fields that should land in the next state commit
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* when the runtime switches tracks or rewrites the queue. Three branches:
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*
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* - **loudness** — clear the visible dB until the engine pushes a real
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* `audio:normalization-state` event back; surface the user's target LUFS.
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* - **replaygain (enabled)** — derive the dB from track/album tags via
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* `resolveReplayGainDb`, add the pre-gain, fall back to the configured
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* fallback when no tag is available.
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* - **off** (or replaygain disabled) — everything null, engine `'off'`.
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*/
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export function deriveNormalizationSnapshot(
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track: Track,
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queue: Track[],
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queueIndex: number,
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): Pick<
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PlayerState,
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'normalizationNowDb' | 'normalizationTargetLufs' | 'normalizationEngineLive'
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> {
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const auth = useAuthStore.getState();
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const engine = auth.normalizationEngine;
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if (engine === 'loudness') {
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const target = auth.loudnessTargetLufs;
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return {
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// Clears stale UI until `audio:normalization-state` / refresh catches up.
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normalizationNowDb: null,
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normalizationTargetLufs: target,
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normalizationEngineLive: 'loudness',
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};
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}
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if (engine === 'replaygain' && auth.replayGainEnabled) {
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const prev = queueIndex > 0 ? queue[queueIndex - 1] : null;
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const next = queueIndex + 1 < queue.length ? queue[queueIndex + 1] : null;
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const resolved = resolveReplayGainDb(track, prev, next, true, auth.replayGainMode);
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const nowDb = resolved != null ? (resolved + auth.replayGainPreGainDb) : auth.replayGainFallbackDb;
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return {
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normalizationNowDb: nowDb,
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normalizationTargetLufs: null,
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normalizationEngineLive: 'replaygain',
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};
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}
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return {
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normalizationNowDb: null,
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normalizationTargetLufs: null,
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normalizationEngineLive: 'off',
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};
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}
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