func (tp TracksProcessor) Process(t track.Track) error {
// Download track
trackPath := filepath.Join(tp.DownloadFolder, t.Filename())
if _, e := os.Create(trackPath); e != nil {
return fmt.Errorf("couldn't create track file: %v", e)
}
if e := downloadTrack(t, trackPath); e != nil {
return fmt.Errorf("couldn't download track: %v", e)
}
// Tag track
var err error
if err = tag(t, trackPath); err != nil {
// Don't return error immediately, because it isn't important reason
// to prevent the processing of track further.
err = fmt.Errorf("coudln't tag file: %v", err)
}
// Add to iTunes
if tp.ItunesPlaylist != "" {
ui.Println("Adding to iTunes")
if e := applescript.AddTrackToPlaylist(trackPath, tp.ItunesPlaylist); e != nil {
return fmt.Errorf("couldn't add track to playlist: %v", e)
}
}
return err
}
func contains(s []track.Track, t track.Track) bool {
for _, v := range s {
if v.ID() == t.ID() {
return true
}
}
return false
}
func tag(t track.Track, trackPath string) error {
tag, err := id3v2.Open(trackPath)
if err != nil {
return err
}
defer tag.Close()
// If there are already frames in tag, do nothing
if tag.Count() > 0 {
return nil
}
tag.SetArtist(t.Artist())
tag.SetTitle(t.Title())
return tag.Save()
}
func downloadTrack(t track.Track, path string) error {
ui.Println("Downloading " + t.Artist() + " - " + t.Title())
return runDownloadCmd(path, t.URL())
}