merge create and update playlist

server/ctrlsubsonic/spec/construct.go

@@ -4,8 +4,10 @@ import "senan.xyz/g/gonic/model"
 
 func NewPlaylist(p *model.Playlist) *Playlist {
 	return &Playlist{
-		ID:      p.ID,
-		Name:    p.Name,
-		Comment: p.Comment,
+		ID:       p.ID,
+		Name:     p.Name,
+		Comment:  p.Comment,
+		Duration: "1",
+		Public:   true,
 	}
 }

server/ctrlsubsonic/spec/spec.go

@@ -210,5 +210,7 @@ type Playlist struct {
 	Owner     string        `xml:"owner,attr"     json:"owner,omitempty"`
 	SongCount string        `xml:"songCount,attr" json:"songCount,omitempty"`
 	Created   string        `xml:"created,attr"   json:"created,omitempty"`
+	Duration  string        `xml:"duration,attr"  json:"duration,omitempty"`
+	Public    bool          `xml:"public,attr"    json:"public,omitempty"`
 	List      []*TrackChild `xml:"entry"          json:"entry,omitempty"`
 }