Files
torrentio/scraper/lib/torrentSubtitles.js

71 lines
2.7 KiB
JavaScript

const { parse } = require('parse-torrent-title');
function assignSubtitles({ contents, videos, subtitles }) {
if (videos && videos.length && subtitles && subtitles.length) {
if (videos.length === 1) {
videos[0].subtitles = subtitles;
return { contents, videos, subtitles: [] };
}
const parsedVideos = videos
.map(video => _parseVideo(video));
const assignedSubs = subtitles
.map(subtitle => ({ subtitle, videos: _mostProbableSubtitleVideos(subtitle, parsedVideos) }));
const unassignedSubs = assignedSubs
.filter(assignedSub => !assignedSub.videos)
.map(assignedSub => assignedSub.subtitle);
assignedSubs
.filter(assignedSub => assignedSub.videos)
.forEach(assignedSub => assignedSub.videos
.forEach(video => video.subtitles = (video.subtitles || []).concat(assignedSub.subtitle)));
return { contents, videos, subtitles: unassignedSubs };
}
return { contents, videos, subtitles };
}
function _parseVideo(video) {
const fileName = video.title.split('/').pop().replace(/\.(\w{2,4})$/, '');
const folderName = video.title.replace(/\/?[^/]+$/, '');
return {
videoFile: video,
fileName: fileName,
folderName: folderName,
...parse(video.title)
};
}
function _mostProbableSubtitleVideos(subtitle, parsedVideos) {
const subTitle = subtitle.title || subtitle.path;
const parsedSub = parse(subTitle.replace(/\.(\w{2,4})$/, ''));
const byFileName = parsedVideos.filter(video => subTitle.includes(video.fileName));
if (byFileName.length === 1) {
return byFileName.map(v => v.videoFile);
}
const byTitleSeasonEpisode = parsedVideos.filter(video => video.title === parsedSub.title
&& video.seasons === parsedSub.seasons
&& JSON.stringify(video.episodes) === JSON.stringify(parsedSub.episodes));
if (singleVideoFile(byTitleSeasonEpisode)) {
return byTitleSeasonEpisode.map(v => v.videoFile);
}
const bySeasonEpisode = parsedVideos.filter(video => video.seasons === parsedSub.seasons
&& video.episodes === parsedSub.episodes);
if (singleVideoFile(bySeasonEpisode)) {
return bySeasonEpisode.map(v => v.videoFile);
}
const byTitle = parsedVideos.filter(video => video.title && video.title === parsedSub.title);
if (singleVideoFile(byTitle)) {
return byTitle.map(v => v.videoFile);
}
const byEpisode = parsedVideos.filter(video => JSON.stringify(video.episodes) === JSON.stringify(parsedSub.episodes));
if (singleVideoFile(byEpisode)) {
return byEpisode.map(v => v.videoFile);
}
return undefined;
}
function singleVideoFile(videos) {
return new Set(videos.map(v => v.videoFile.fileIndex)).size === 1;
}
module.exports = { assignSubtitles }