refactor album iterator + add fn to get user owned playlsits

backend/albumiterator.go

@@ -7,22 +7,6 @@ import (
 	subsonic "github.com/dweymouth/go-subsonic"
 )
 
-type AlbumIterator interface {
-	Next() *subsonic.AlbumID3
-}
-
-type LibraryManager struct {
-	PreCacheCoverFn func(string)
-
-	s *ServerManager
-}
-
-func NewLibraryManager(s *ServerManager) *LibraryManager {
-	return &LibraryManager{
-		s: s,
-	}
-}
-
 type AlbumSortOrder string
 
 const (

backend/librarymanager.go

@@ -0,0 +1,35 @@
+package backend
+
+import (
+	subsonic "github.com/dweymouth/go-subsonic"
+)
+
+type AlbumIterator interface {
+	Next() *subsonic.AlbumID3
+}
+
+type LibraryManager struct {
+	PreCacheCoverFn func(string)
+
+	s *ServerManager
+}
+
+func NewLibraryManager(s *ServerManager) *LibraryManager {
+	return &LibraryManager{
+		s: s,
+	}
+}
+
+func (l *LibraryManager) GetUserOwnedPlaylists() ([]*subsonic.Playlist, error) {
+	pl, err := l.s.Server.GetPlaylists(nil)
+	userPl := make([]*subsonic.Playlist, 0)
+	if err != nil {
+		return nil, err
+	}
+	for _, p := range pl {
+		if p.Owner == l.s.Server.User {
+			userPl = append(userPl, p)
+		}
+	}
+	return userPl, nil
+}