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const fs = require('fs');
const cp = require('child_process');
const path = require('path');
const uuid = require('crypto').randomUUID;
const substitutes = [
["illenium", "ILLENIUM"]
];
const songs = require('../assets/content/songs.json');
const albums = require('../assets/content/albums.json');
function scandir(dir) {
return new Promise((res, rej) => {
const walk = (dir, done) => {
let results = [];
fs.readdir(dir, function(err, list) {
if (err) return done(err);
let pending = list.length;
if (!pending) return done(null, results);
list.forEach(function(file) {
file = path.resolve(dir, file);
fs.stat(file, function(err, stat) {
if (stat && stat.isDirectory()) {
walk(file, function(err, res) {
results = results.concat(res);
if (!--pending) done(null, results);
});
} else {
results.push(file);
if (!--pending) done(null, results);
}
});
});
});
}
walk(dir, (err, data) => {
if (err) {
rej(err);
} else {
res(data);
}
})
});
}
function substitute(text) {
for (let sub of substitutes) {
if (text.trim() === sub[0].trim()) {
return sub[1].trim();
}
}
}
(async () => {
for (let file of (await scandir("../assets/content/_")).filter(i => i.endsWith(".flac"))) {
let id = uuid();
let metadata = JSON.parse(cp.execFileSync("ffprobe", ["-v", "quiet", "-print_format", "json", "-show_format", "-show_streams", file]).toString());
songs[id] = {
title: substitute(metadata['format']['tags']['TITLE'] ?? path.basename(file, ".flac")),
length: parseInt(metadata['format']['duration']),
album: substitute(metadata['format']['tags']['ALBUM'] ?? "Unknown album"),
artist: substitute(metadata['format']['tags']['ARTIST'] ?? "Unknown artist"),
albumArtist: substitute(metadata['format']['tags']['album_artist'] ?? metadata['format']['tags']['ARTIST'] ?? "Unknown artist"),
date: parseInt(metadata['format']['tags']['DATE']) ?? 0,
track: parseInt(metadata['format']['tags']['track']) ?? 0,
size: parseInt(metadata['format']['size']),
bitRate: parseInt(metadata['format']['bit_rate']),
bitDepth: parseInt(metadata['streams'][0]['bits_per_raw_sample']),
sampleRate: parseInt(metadata['streams'][0]['sample_rate']),
hiRes: parseInt(metadata['streams'][0]['sample_rate']) > 44100 || parseInt(metadata['streams'][0]['bits_per_raw_sample']) > 16,
channels: parseInt(metadata['streams'][0]['channels']),
}
fs.writeFileSync("../assets/content/songs.json", JSON.stringify(songs));
cp.execFileSync("ffmpeg", ["-i", file, "-map", "0", "-map", "-0:v?", "-b:a", "256k", "../assets/content/" + id + ".m4a"]);
cp.execFileSync("ffmpeg", ["-i", file, "-map", "0", "-map", "-0:v?", "../assets/content/" + id + ".flac"]);
cp.execFileSync("ffmpeg", ["-i", file, "-an", "../assets/content/" + id + ".jpg"]);
fs.unlinkSync(file);
}
for (let song of Object.keys(songs)) {
if (Object.values(albums).filter(i => i.title === songs[song].album).length > 0) {
Object.values(albums).filter(i => i.title === songs[song].album)[0].tracks.push(song);
Object.values(albums).filter(i => i.title === songs[song].album)[0].hiRes = Object.values(albums).filter(i => i.title === songs[song].album)[0].hiRes || songs[song].hiRes;
} else {
let albumID = uuid();
fs.copyFileSync("../assets/content/" + song + ".jpg", "../assets/content/" + albumID + ".jpg")
albums[albumID] = {
title: songs[song].album,
artist: songs[song].albumArtist,
date: songs[song].date,
hiRes: songs[song].hiRes,
tracks: [song]
}
}
}
for (let albumID of Object.keys(albums)) {
let album = albums[albumID];
album["tracks"] = album["tracks"].sort((a, b) => {
return songs[a]['track'] - songs[b]['track'];
});
}
fs.writeFileSync("../assets/content/albums.json", JSON.stringify(albums));
})()
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