Elmar Kresse
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69 lines
2.6 KiB
JavaScript
69 lines
2.6 KiB
JavaScript
import fs from 'fs';
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import path from 'path';
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import { parseFile as mmParseFile } from 'music-metadata';
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import { getPlaylistDir } from './config.js';
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import { loadYearsIndex } from './years.js';
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/**
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* List tracks from a specific playlist
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* @param {string} [playlistId='default'] - The playlist ID to list tracks from
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* @returns {Promise<Array>} Array of track objects
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*/
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export async function listTracks(playlistId = 'default') {
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const years = loadYearsIndex(playlistId);
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const targetDir = getPlaylistDir(playlistId);
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const files = fs
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.readdirSync(targetDir)
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.filter((f) => /\.(mp3|wav|m4a|ogg|opus)$/i.test(f))
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.filter((f) => {
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// If both base.ext and base.opus exist, list only once (prefer .opus)
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const ext = path.extname(f).toLowerCase();
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if (ext === '.opus') return true;
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const opusTwin = f.replace(/\.[^.]+$/i, '.opus');
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return !fs.existsSync(path.join(targetDir, opusTwin));
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});
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const tracks = await Promise.all(
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files.map(async (f) => {
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// Prefer .opus for playback if exists
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const ext = path.extname(f).toLowerCase();
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const opusName = ext === '.opus' ? f : f.replace(/\.[^.]+$/i, '.opus');
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const chosen = fs.existsSync(path.join(targetDir, opusName)) ? opusName : f;
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const fp = path.join(targetDir, chosen);
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// Get metadata from JSON first (priority), then from audio file as fallback
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const jsonMeta = years[f] || years[chosen];
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let year = jsonMeta?.year ?? null;
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let title = jsonMeta?.title ?? path.parse(f).name;
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let artist = jsonMeta?.artist ?? '';
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// Only parse audio file if JSON doesn't have title or artist metadata
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// Note: year is ONLY taken from years.json, never from audio file
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if (!jsonMeta || !jsonMeta.title || !jsonMeta.artist) {
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try {
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const meta = await mmParseFile(fp, { duration: false });
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title = jsonMeta?.title || meta.common.title || title;
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artist = jsonMeta?.artist || meta.common.artist || artist;
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// year remains from years.json only - do not use meta.common.year
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} catch {}
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}
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return { id: chosen, file: chosen, title, artist, year };
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})
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);
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return tracks;
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}
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export function registerTracksApi(app) {
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app.get('/api/tracks', async (req, res) => {
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try {
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// Support optional playlist parameter (defaults to 'default')
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const playlistId = req.query.playlist || 'default';
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const tracks = await listTracks(playlistId);
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res.json({ tracks, playlist: playlistId });
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} catch (e) {
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res.status(500).json({ error: e.message });
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}
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});
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}
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