// GetTracks uses the passed URL to find and return
// tracks associated with the URL. An error is returned
// if any error occurs during the API call.
func (sc *SoundCloud) GetTracks(url string, submitter *gumble.User) ([]interfaces.Track, error) {
var (
apiURL string
err error
resp *http.Response
v *jason.Object
track bot.Track
tracks []interfaces.Track
)
urlSplit := strings.Split(url, "#t=")
apiURL = "http://api.soundcloud.com/resolve?url=%s&client_id=%s"
if sc.isPlaylist(url) {
// Submitter has added a playlist!
resp, err = http.Get(fmt.Sprintf(apiURL, urlSplit[0], viper.GetString("api_keys.soundcloud")))
defer resp.Body.Close()
if err != nil {
return nil, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return nil, err
}
title, _ := v.GetString("title")
permalink, _ := v.GetString("permalink_url")
playlist := &bot.Playlist{
ID: permalink,
Title: title,
Submitter: submitter.Name,
Service: sc.ReadableName,
}
var scTracks []*jason.Object
scTracks, err = v.GetObjectArray("tracks")
if err != nil {
return nil, err
}
dummyOffset, _ := time.ParseDuration("0s")
for _, t := range scTracks {
track, err = sc.getTrack(t, dummyOffset, submitter)
if err != nil {
// Skip this track.
continue
}
track.Playlist = playlist
tracks = append(tracks, track)
}
if len(tracks) == 0 {
return nil, errors.New("Invalid playlist. No tracks were added")
}
return tracks, nil
}
// Submitter has added a track!
offset := 0
// Calculate track offset if needed
if len(urlSplit) == 2 {
timeSplit := strings.Split(urlSplit[1], ":")
multiplier := 1
for i := len(timeSplit) - 1; i >= 0; i-- {
time, _ := strconv.Atoi(timeSplit[i])
offset += time * multiplier
multiplier *= 60
}
}
playbackOffset, _ := time.ParseDuration(fmt.Sprintf("%ds", offset))
resp, err = http.Get(fmt.Sprintf(apiURL, urlSplit[0], viper.GetString("api_keys.soundcloud")))
defer resp.Body.Close()
if err != nil {
return nil, err
}
v, err = jason.NewObjectFromReader(resp.Body)
if err != nil {
return nil, err
}
track, err = sc.getTrack(v, playbackOffset, submitter)
if err != nil {
return nil, err
}
tracks = append(tracks, track)
return tracks, nil
}
