implement delete songs from queue

player.go

@@ -44,10 +44,12 @@ type Player struct {
 	app        *tview.Application
 }
 
+// add new song to the queue
 func (p *Player) Push(song string) {
 	p.queue = append(p.queue, song)
 }
 
+// remove first song from the queue
 func (p *Player) Pop() (string, error) {
 
 	if len(p.queue) == 0 {
@@ -60,6 +62,29 @@ func (p *Player) Pop() (string, error) {
 	return a, nil
 }
 
+// remove song from the queue
+func (p *Player) Remove(index int) (string, error) {
+
+	if index > len(p.queue) - 1 {
+		return "", errors.New("Index out of range")
+	}
+
+	removed := p.queue[index]
+
+	var rest []string
+
+	// check if given index is the last element
+	if index == len(p.queue)-1 {
+		rest = []string{}
+	} else {
+		rest = p.queue[index+1:]
+	}
+
+	p.queue = append(p.queue[:index], rest...)
+
+	return removed, nil
+}
+
 func (p *Player) Run() {
 
 	first, err := p.Pop()

queue.go

@@ -7,7 +7,7 @@ import (
 	"github.com/rivo/tview"
 )
 
-func Queue() *tview.List {
+func Queue(player *Player) *tview.List {
 
 	list := tview.NewList().
 		ShowSecondaryText(false)
@@ -34,6 +34,11 @@ func Queue() *tview.List {
 			next()
 		case 'k':
 			prev()
+		case 'd':
+			index := list.GetCurrentItem()
+			player.Remove(index)
+			list.RemoveItem(index)
+
 		}
 
 		return nil
@@ -49,3 +54,4 @@ func Queue() *tview.List {
 	return list
 
 }
+

start.go

@@ -22,7 +22,7 @@ func start(app *tview.Application) {
 	player := &Player{}
 
 	child3 := PlayingBar(app)
-	child2 := Queue()
+	child2 := Queue(player)
 	child1 := Playlist(child2, child3, player)
 
 	player.tree = child1