Add PlaylistItem::NewFromSong function

src/internet/internetplaylistitem.cpp

@@ -38,8 +38,15 @@
 InternetPlaylistItem::InternetPlaylistItem(const Song::Source source)
     : PlaylistItem(source) {}
 
+InternetPlaylistItem::InternetPlaylistItem(const Song &metadata)
+    : PlaylistItem(metadata.source()),
+      source_(metadata.source()),
+      metadata_(metadata) {
+  InitMetadata();
+}
+
 InternetPlaylistItem::InternetPlaylistItem(InternetService *service, const Song &metadata)
-    : PlaylistItem(Song::Source_Stream),
+    : PlaylistItem(metadata.source()),
       source_(service->source()),
       metadata_(metadata) {
   InitMetadata();

src/internet/internetplaylistitem.h

@@ -36,6 +36,7 @@ class InternetPlaylistItem : public PlaylistItem {
 
  public:
   explicit InternetPlaylistItem(const Song::Source source);
+  explicit InternetPlaylistItem(const Song &metadata);
   explicit InternetPlaylistItem(InternetService *service, const Song &metadata);
 
   bool InitFromQuery(const SqlRow &query) override;

src/playlist/playlistitem.cpp

@@ -38,9 +38,7 @@
 
 #include "internet/internetplaylistitem.h"
 
-PlaylistItem::~PlaylistItem() {}
-
-PlaylistItem *PlaylistItem::NewFromSource(const Song::Source &source) {
+PlaylistItem *PlaylistItem::NewFromSource(const Song::Source source) {
 
   switch (source) {
     case Song::Source_Collection:
@@ -61,6 +59,29 @@ PlaylistItem *PlaylistItem::NewFromSource(const Song::Source &source) {
 
 }
 
+PlaylistItem *PlaylistItem::NewFromSong(const Song &song) {
+
+  switch (song.source()) {
+    case Song::Source_Collection:
+      return new CollectionPlaylistItem(song);
+    case Song::Source_Subsonic:
+    case Song::Source_Tidal:
+    case Song::Source_Qobuz:
+    case Song::Source_Stream:
+      return new InternetPlaylistItem(song);
+    case Song::Source_LocalFile:
+    case Song::Source_CDDA:
+    case Song::Source_Device:
+    case Song::Source_Unknown:
+      break;
+  }
+
+  return new SongPlaylistItem(song);
+
+}
+
+PlaylistItem::~PlaylistItem() {}
+
 void PlaylistItem::BindToQuery(QSqlQuery *query) const {
 
   query->bindValue(":type", source_);

src/playlist/playlistitem.h

@@ -48,7 +48,8 @@ class PlaylistItem : public std::enable_shared_from_this<PlaylistItem> {
   explicit PlaylistItem(const Song::Source &source) : should_skip_(false), source_(source) {}
   virtual ~PlaylistItem();
 
-  static PlaylistItem *NewFromSource(const Song::Source &source);
+  static PlaylistItem *NewFromSource(const Song::Source source);
+  static PlaylistItem *NewFromSong(const Song &song);
 
   enum Option {
     Default = 0x00,