85 lines
1.6 KiB
Go
85 lines
1.6 KiB
Go
package playback
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import "github.com/delucks/go-subsonic"
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type queue struct {
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currentSong int
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songQueue []*subsonic.Child
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}
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func newQueue() *queue {
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return &queue{
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currentSong: 0,
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songQueue: []*subsonic.Child{},
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}
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}
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func (q *queue) Set(songs []*subsonic.Child) {
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q.currentSong = 0
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q.songQueue = songs
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}
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func (q *queue) Clear() {
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q.currentSong = 0
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q.songQueue = []*subsonic.Child{}
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}
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// returns true if queue was empty before addition
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func (q *queue) Add(songs ...*subsonic.Child) bool {
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shouldStartPlaying := len(q.songQueue) == 0
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q.songQueue = append(q.songQueue, songs...)
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if shouldStartPlaying {
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q.currentSong = 0
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return true
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}
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return false
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}
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// returns a song if position has changed
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func (q *queue) SetPosition(position int) *subsonic.Child {
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if position == q.currentSong || position < 0 || len(q.songQueue) < position {
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return nil
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}
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q.currentSong = position
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return q.GetCurrentSong()
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}
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func (q *queue) GetPosition() int {
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return q.currentSong
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}
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func (q *queue) GetCurrentSong() *subsonic.Child {
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if len(q.songQueue) == 0 {
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return nil
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}
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return q.songQueue[q.currentSong]
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}
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func (q *queue) HasPrev() bool {
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return 0 < q.currentSong
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}
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func (q *queue) HasNext() bool {
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return q.currentSong < len(q.songQueue)-1
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}
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func (q *queue) Next() *subsonic.Child {
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if len(q.songQueue) > q.currentSong+1 {
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q.currentSong = q.currentSong + 1
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return q.GetCurrentSong()
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}
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return nil
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}
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func (q *queue) Prev() *subsonic.Child {
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if q.currentSong > 0 {
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q.currentSong = q.currentSong - 1
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return q.GetCurrentSong()
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}
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return nil
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}
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func (q *queue) Get() []*subsonic.Child {
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return q.songQueue
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}
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