Add files

src/renderer/lib/torrent-player.js

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+module.exports = {
+  isPlayable,
+  isVideo,
+  isAudio,
+  isTorrent,
+  isMagnetLink,
+  isPlayableTorrentSummary
+}
+
+const path = require('path')
+
+const mediaExtensions = require('./media-extensions')
+
+// Checks whether a fileSummary or file path is audio/video that we can play,
+// based on the file extension
+function isPlayable (file) {
+  return isVideo(file) || isAudio(file)
+}
+
+// Checks whether a fileSummary or file path is playable video
+function isVideo (file) {
+  return mediaExtensions.video.includes(getFileExtension(file))
+}
+
+// Checks whether a fileSummary or file path is playable audio
+function isAudio (file) {
+  return mediaExtensions.audio.includes(getFileExtension(file))
+}
+
+// Checks if the argument is either:
+// - a string that's a valid filename ending in .torrent
+// - a file object where obj.name is ends in .torrent
+// - a string that's a magnet link (magnet://...)
+function isTorrent (file) {
+  return isTorrentFile(file) || isMagnetLink(file)
+}
+
+function isTorrentFile (file) {
+  return getFileExtension(file) === '.torrent'
+}
+
+function isMagnetLink (link) {
+  return typeof link === 'string' && /^(stream-)?magnet:/.test(link)
+}
+
+function getFileExtension (file) {
+  const name = typeof file === 'string' ? file : file.name
+  return path.extname(name).toLowerCase()
+}
+
+function isPlayableTorrentSummary (torrentSummary) {
+  return torrentSummary.files && torrentSummary.files.some(isPlayable)
+}