Files
torrentio/addon/lib/subtitles.js

101 lines
3.1 KiB
JavaScript

const { parse } = require('parse-torrent-title');
const { isExtension } = require("./extension");
const { Providers } = require("./filter");
const { languageFromCode } = require("./languages");
const languageMapping = {
'english': 'eng',
'japanese': 'jpn',
'russian': 'rus',
'italian': 'ita',
'portuguese': 'por',
'spanish': 'spa',
'latino': 'lat',
'korean': 'kor',
'chinese': 'zho',
'taiwanese': 'zht',
'french': 'fre',
'german': 'ger',
'dutch': 'dut',
'hindi': 'hin ',
'telugu': 'tel',
'tamil': 'tam',
'polish': 'pol',
'lithuanian': 'lit',
'latvian': 'lav',
'estonian': 'est',
'czech': 'cze',
'slovakian': 'slo',
'slovenian': 'slv',
'hungarian': 'hun',
'romanian': 'rum',
'bulgarian': 'bul',
'serbian': 'scc',
'croatian': 'hrv',
'ukrainian': 'ukr',
'greek': 'ell',
'danish': 'dan',
'finnish': 'fin',
'swedish': 'swe',
'norwegian': 'nor',
'turkish': 'tur',
'arabic': 'ara',
'persian': 'per',
'hebrew': 'heb',
'vietnamese': 'vie',
'indonesian': 'ind',
'thai': 'tha'
}
const ignoreSet = new Set(['dubbed', 'multi audio', 'multi subs', 'dual audio']);
const allowedExtensions = ['srt', 'vtt', 'ass', 'ssa'];
function getSubtitles(record) {
if (!record.subtitles || !record.subtitles.length) {
return null;
}
return record.subtitles
.filter(subtitle => isExtension(subtitle.title, allowedExtensions))
.sort((a, b) => b.size - a.size)
.map(subtitle => ({
infoHash: subtitle.infoHash,
fileIndex: subtitle.fileIndex,
title: subtitle.title,
lang: parseLanguage(subtitle.title, record),
}));
}
function parseLanguage(title, record) {
const subtitlePathParts = title.split('/');
const subtitleFileName = subtitlePathParts.pop();
const subtitleTitleNoExt = title.replace(/\.\w{2,5}$/, '');
const videoFileName = record.title.split('/').pop().replace(/\.\w{2,5}$/, '');
const fileNameLanguage = getSingleLanguage(subtitleFileName.replace(videoFileName, ''));
if (fileNameLanguage) {
return fileNameLanguage;
}
const videoTitleNoExt = record.title.replace(/\.\w{2,5}$/, '');
if (subtitleTitleNoExt === record.title || subtitleTitleNoExt === videoTitleNoExt) {
const provider = Providers.options.find(provider => provider.label === record.torrent.provider);
return provider?.foreign && languageFromCode(provider.foreign) || 'eng';
}
const folderName = subtitlePathParts.join('/');
const folderNameLanguage = getSingleLanguage(folderName.replace(videoFileName, ''));
if (folderNameLanguage) {
return folderNameLanguage
}
return getFileNameLanguageCode(subtitleFileName) || 'Unknown';
}
function getSingleLanguage(title) {
const parsedInfo = parse(title);
const languages = (parsedInfo.languages || []).filter(language => !ignoreSet.has(language));
return languages.length === 1 ? languageMapping[languages[0]] : undefined;
}
function getFileNameLanguageCode(fileName) {
const match = fileName.match(/(?:(?:^|[._ ])([A-Za-z][a-z]{1,2})|\[([a-z]{2,3})])\.\w{3,4}$/);
return match && match[1].toLowerCase();
}
module.exports = { getSubtitles }