Files
Psychotoxical-psysonic/src/hooks/useSmartCoverCollage.ts
T
Frank Stellmacher 7a7a9f5e6b refactor(utils): group utils/ files into topic folders (Phase L, part 1) (#689)
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.
2026-05-14 14:27:44 +02:00

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import { useEffect, useState } from 'react';
import { filterSongsToActiveLibrary } from '../api/subsonicLibrary';
import { getPlaylist } from '../api/subsonicPlaylists';
import type { SubsonicPlaylist } from '../api/subsonicTypes';
import { isSmartPlaylistName } from '../utils/playlist/playlistsSmart';
/**
* Build the 2×2 cover collage for each smart playlist. Pulls each smart
* playlist's tracks (filtered to the active library scope) and collects up
* to four unique cover-art IDs. Re-runs when the playlist list changes or
* when the active library filter version bumps.
*/
export function useSmartCoverCollage(
playlists: SubsonicPlaylist[],
musicLibraryFilterVersion: number,
): Record<string, string[]> {
const [smartCoverIdsByPlaylist, setSmartCoverIdsByPlaylist] = useState<Record<string, string[]>>({});
useEffect(() => {
let cancelled = false;
const run = async () => {
const smart = playlists.filter(pl => isSmartPlaylistName(pl.name));
if (smart.length === 0) {
if (!cancelled) setSmartCoverIdsByPlaylist({});
return;
}
const rows = await Promise.all(
smart.map(async (pl) => {
try {
const { songs } = await getPlaylist(pl.id);
const filtered = await filterSongsToActiveLibrary(songs);
const ids: string[] = [];
const seen = new Set<string>();
for (const s of filtered) {
const cid = s.coverArt;
if (!cid || seen.has(cid)) continue;
seen.add(cid);
ids.push(cid);
if (ids.length >= 4) break;
}
return [pl.id, ids] as const;
} catch {
return [pl.id, [] as string[]] as const;
}
}),
);
if (cancelled) return;
const next: Record<string, string[]> = {};
for (const [id, ids] of rows) next[id] = ids;
setSmartCoverIdsByPlaylist(next);
};
run();
return () => { cancelled = true; };
}, [playlists, musicLibraryFilterVersion]);
return smartCoverIdsByPlaylist;
}