Files
ripster/backend/src/utils/files.js
T
2026-03-16 08:36:02 +00:00

93 lines
2.6 KiB
JavaScript

const fs = require('fs');
const path = require('path');
function ensureDir(dirPath) {
fs.mkdirSync(dirPath, { recursive: true });
}
function transliterateForFilename(input) {
return String(input || '')
// German — must come before NFD to get ae/oe/ue instead of just a/o/u
.replace(/ä/g, 'ae').replace(/Ä/g, 'Ae')
.replace(/ö/g, 'oe').replace(/Ö/g, 'Oe')
.replace(/ü/g, 'ue').replace(/Ü/g, 'Ue')
.replace(/ß/g, 'ss')
// Danish / Norwegian / Swedish
.replace(/å/g, 'a').replace(/Å/g, 'A')
.replace(/æ/g, 'ae').replace(/Æ/g, 'Ae')
.replace(/ø/g, 'o').replace(/Ø/g, 'O')
// Icelandic
.replace(/ð/g, 'd').replace(/Ð/g, 'D')
.replace(/þ/g, 'th').replace(/Þ/g, 'Th')
// NFD decomposition + strip combining diacritical marks (handles é→e, ñ→n, ç→c, etc.)
.normalize('NFD')
.replace(/\p{M}+/gu, '')
// Drop any remaining non-ASCII characters
.replace(/[^\x00-\x7F]/g, '');
}
function sanitizeFileName(input) {
return transliterateForFilename(String(input || 'untitled'))
.replace(/[\\/:*?"<>|]/g, '_')
.replace(/\s+/g, ' ')
.trim()
.slice(0, 180);
}
function renderTemplate(template, values) {
return String(template || '${title} (${year})').replace(/\$\{([^}]+)\}/g, (_, key) => {
const val = values[key.trim()];
if (val === undefined || val === null || val === '') {
return 'unknown';
}
return String(val);
});
}
function findLargestMediaFile(dirPath, extensions = ['.mkv', '.mp4']) {
const files = findMediaFiles(dirPath, extensions);
if (files.length === 0) {
return null;
}
return files.reduce((largest, file) => (largest === null || file.size > largest.size ? file : largest), null);
}
function findMediaFiles(dirPath, extensions = ['.mkv', '.mp4']) {
const results = [];
function walk(current) {
const entries = fs.readdirSync(current, { withFileTypes: true });
for (const entry of entries) {
const abs = path.join(current, entry.name);
if (entry.isDirectory()) {
walk(abs);
} else {
const ext = path.extname(entry.name).toLowerCase();
if (!extensions.includes(ext)) {
continue;
}
const stat = fs.statSync(abs);
results.push({
path: abs,
size: stat.size
});
}
}
}
walk(dirPath);
results.sort((a, b) => b.size - a.size || a.path.localeCompare(b.path));
return results;
}
module.exports = {
ensureDir,
transliterateForFilename,
sanitizeFileName,
renderTemplate,
findLargestMediaFile,
findMediaFiles
};