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playlist.go
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playlist.go
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package control
import (
"fmt"
"github.com/insomnimus/libman/glob"
"github.com/zmb3/spotify"
)
func (p *Playlist) makeFull() error {
if p.isFull {
return nil
}
pl, err := client.GetPlaylist(p.ID)
if err != nil {
return err
}
*p = Playlist{*pl, true, false}
return nil
}
func (p *Playlist) addTrack(track spotify.FullTrack) error {
if !p.isFull {
err := p.makeFull()
if err != nil {
return err
}
}
// do not add if the track is a duplicate
for _, t := range p.Tracks.Tracks {
if t.Track.ID == track.ID {
fmt.Printf("%s is already in %s, no action taken.\n", track.Name, p.Name)
return nil
}
}
_, err := client.AddTracksToPlaylist(p.ID, track.ID)
if err != nil {
return err
}
p.Tracks.Tracks = append(p.Tracks.Tracks, spotify.PlaylistTrack{
Track: track,
})
fmt.Printf("Added %s to %s.\n", track.Name, p.Name)
return nil
}
func (p *Playlist) removeTrack(track spotify.FullTrack) error {
if !p.isFull {
err := p.makeFull()
if err != nil {
return err
}
}
// do not send a request if the playlist doesn't have the track
index := -1
for i, t := range p.Tracks.Tracks {
if t.Track.ID == track.ID {
index = i
break
}
}
if index < 0 {
fmt.Printf("%s is not in %s.\n", track.Name, p.Name)
return nil
}
_, err := client.RemoveTracksFromPlaylist(p.ID, track.ID)
if err != nil {
return err
}
fmt.Printf("Removed %s from %s.\n", track.Name, p.Name)
p.Tracks.Tracks = append(p.Tracks.Tracks[:index], p.Tracks.Tracks[index+1:]...)
return nil
}
func (p *Playlist) editDetails() error {
name := readString("playlist name (%s): ", p.Name)
if name == "" {
name = p.Name
}
fmt.Println(name)
desc := readString("playlist description: ")
if name != p.Name {
err := client.ChangePlaylistName(p.ID, name)
if err != nil {
return err
}
p.Name = name
fmt.Printf("Renamed %s -> %s.\n", p.Name, name)
}
if desc != "" {
err := client.ChangePlaylistDescription(p.ID, desc)
if err != nil {
return err
}
fmt.Printf("Changed the description of %s.\n", p.Name)
}
return nil
}
func handleSavePlaying(arg string) error {
pl := choosePlaylist(arg)
if pl == nil {
return nil
}
t, err := getPlaying()
if err != nil {
return err
}
return pl.addTrack(*t)
}
func handleRemovePlaying(arg string) error {
var pl *Playlist
if arg == "" {
pl = lastPl
if pl == nil {
fmt.Println("No playlist playback history detected in this session, please specify a playlist name.")
return nil
}
} else {
pl = choosePlaylist(arg)
if pl == nil {
return nil
}
}
t, err := getPlaying()
if err != nil {
return err
}
return pl.removeTrack(*t)
}
func (p *Playlist) findTrack(pattern string) (*spotify.FullTrack, error) {
g, err := glob.Compile(pattern)
if err != nil {
return nil, err
}
if err := p.makeFull(); err != nil {
return nil, err
}
for _, t := range p.Tracks.Tracks {
if g.MatchString(t.Track.Name) {
return &t.Track, nil
}
}
return nil, fmt.Errorf("%s: didn't match any track", pattern)
}
func (p *Playlist) trackNames() []string {
if err := p.makeFull(); err != nil {
return nil
}
c := make([]string, len(p.Tracks.Tracks))
for i, t := range p.Tracks.Tracks {
c[i] = t.Track.Name
// c[i] = p.Tracks.Tracks[i].Track.Name
}
return c
}