fix playlist playback nicely

TomatenMusic/Services/TomatenMusicService.cs

@@ -46,9 +46,9 @@ namespace TomatenMusic_Api
 			if (e.Response.IsPlaylist)
             {
 				if (e.Now)
-					await player.PlayPlaylistNowAsync(e.Response.Playlist);
+					await player.PlayNowAsync(e.Response.Playlist);
 				else
-					await player.PlayPlaylistAsync(e.Response.Playlist);
+					await player.PlayItemAsync(e.Response.Playlist);
 			}else
             {
 				if (e.Now)

TomatenMusicCore/Commands/PlayCommandGroup.cs

@@ -84,7 +84,7 @@ namespace TomatenMusic.Commands
                     if (response.IsPlaylist)
                     {
                         ILavalinkPlaylist playlist = response.Playlist;
-                        await player.PlayPlaylistNowAsync(playlist);
+                        await player.PlayNowAsync(playlist);
 
                         _ = ctx.EditResponseAsync(new DiscordWebhookBuilder().WithContent("Now Playing:").AddEmbed(
                         Common.AsEmbed(playlist)
@@ -237,7 +237,7 @@ namespace TomatenMusic.Commands
                     if (response.IsPlaylist)
                     {
                         ILavalinkPlaylist playlist = response.Playlist;
-                        await player.PlayPlaylistAsync(playlist);
+                        await player.PlayItemAsync(playlist);
 
                         await ctx.EditResponseAsync(new DiscordWebhookBuilder().WithContent("Now Playing:").AddEmbed(
                         Common.AsEmbed(playlist)

TomatenMusicCore/Music/Entitites/FullTrackContext.cs

@@ -20,7 +20,7 @@ namespace TomatenMusic.Music.Entitites
         public IEnumerable<string> YoutubeTags { get; set; }
         public ulong YoutubeViews { get; set; }
         public ulong YoutubeLikes { get; set; }
-        public Uri YoutubeThumbnail { get; set; }
+        public Uri? YoutubeThumbnail { get; set; } = null;
         public DateTime YoutubeUploadDate { get; set; }
         //
         // Summary:

TomatenMusicCore/Music/GuildPlayer.cs

@@ -64,26 +64,6 @@ namespace TomatenMusic.Music
             QueuePrompt.UpdateFor(GuildId);
         }
 
-        public async Task PlayPlaylistAsync(ILavalinkPlaylist playlist)
-        {
-            EnsureNotDestroyed();
-            EnsureConnected();
-
-            _logger.LogInformation("Started playing Playlist {0} on Guild {1}", playlist.Title, (await GetGuildAsync()).Name);
-
-
-            QueuePrompt.UpdateFor(GuildId);
-        }
-
-        public async Task PlayPlaylistNowAsync(ILavalinkPlaylist playlist)
-        {
-            EnsureConnected();
-            EnsureNotDestroyed();
-
-
-            QueuePrompt.UpdateFor(GuildId);
-        }
-
         public async Task RewindAsync()
         {
             EnsureNotDestroyed();
@@ -109,7 +89,7 @@ namespace TomatenMusic.Music
             MusicActionResponse response;
             try
             {
-                response = PlayerQueue.(true);
+                response = PlayerQueue.NextTrack(true);
             }catch (Exception ex)
             {
                 if (Autoplay)

TomatenMusicCore/Util/Common.cs

@@ -32,10 +32,12 @@ namespace TomatenMusic.Util
             DiscordEmbedBuilder builder = new DiscordEmbedBuilder()
                 .WithTitle(track.Title)
                 .WithUrl(track.Source)
-                .WithImageUrl(context.YoutubeThumbnail)
                 .WithDescription(context.YoutubeDescription)
                 .AddField("Length", Common.GetTimestamp(track.Duration), true);
 
+            if (context.YoutubeThumbnail != null)
+                builder.WithImageUrl(context.YoutubeThumbnail);
+
             if (context.IsFile)
             {
                 builder.WithAuthor(track.Author);