music fixes, added !m rm # command

NadekoBot/Classes/Music/StreamRequest.cs

@@ -31,7 +31,7 @@ namespace NadekoBot.Classes.Music {
         public string Title { get; internal set; } = String.Empty;
         private string Provider { get; set; }
 
-        public string FullPrettyName => $"**【 {Title.TrimTo(55)} 】**`{Provider}`";
+        public string FullPrettyName => $"**【 {Title.TrimTo(55)} 】**`{(Provider == null ? "-" : Provider)}`";
 
         private MusicStreamer musicStreamer = null;
         public StreamState State => musicStreamer?.State ?? privateState;
@@ -74,7 +74,8 @@ namespace NadekoBot.Classes.Music {
                     Provider = "SoundCloud";
                     uri = svideo.StreamLink;
                     Console.WriteLine(uri);
-                } else {
+                }
+                else {
 
                     if (OnResolving != null)
                         OnResolving();
@@ -89,11 +90,12 @@ namespace NadekoBot.Classes.Music {
                     if (video == null) // do something with this error
                         throw new Exception("Could not load any video elements based on the query.");
 
-                    Title = video.Title.Substring(0,video.Title.Length-10); // removing trailing "- You Tube"
+                    Title = video.Title.Substring(0, video.Title.Length - 10); // removing trailing "- You Tube"
                     Provider = "YouTube";
                     uri = video.Uri;
                 }
-            } catch (Exception ex) {
+            }
+            catch (Exception ex) {
                 privateState = StreamState.Completed;
                 if (OnResolvingFailed != null)
                     OnResolvingFailed(ex.Message);
@@ -134,10 +136,12 @@ namespace NadekoBot.Classes.Music {
                     }
                 }
                 await musicStreamer.StartPlayback();
-            } catch (TimeoutException) {
+            }
+            catch (TimeoutException) {
                 Console.WriteLine("Resolving timed out.");
                 privateState = StreamState.Completed;
-            } catch (Exception ex) {
+            }
+            catch (Exception ex) {
                 Console.WriteLine("Error in start playback." + ex.Message);
                 privateState = StreamState.Completed;
             }
@@ -192,7 +196,8 @@ namespace NadekoBot.Classes.Music {
                     try {
                         p.CancelOutputRead();
                         p.Close();
-                    } catch  { }
+                    }
+                    catch { }
                     Console.WriteLine("Buffering canceled, stream is completed.");
                     return;
                 }
@@ -221,15 +226,18 @@ namespace NadekoBot.Classes.Music {
                         try {
                             p.CancelOutputRead();
                             p.Close();
-                        } catch  { }
+                        }
+                        catch { }
 
-                        Console.WriteLine($"Didn't read anything from the stream for {attempt} attempts. {buffer.Length/1.MB()}MB length");
+                        Console.WriteLine($"Didn't read anything from the stream for {attempt} attempts. {buffer.Length / 1.MB()}MB length");
                         return;
-                    } else {
+                    }
+                    else {
                         ++attempt;
                         await Task.Delay(20);
                     }
-                } else {
+                }
+                else {
                     attempt = 0;
                     await buffer.WriteAsync(buf, 0, read);
                 }
@@ -254,13 +262,14 @@ namespace NadekoBot.Classes.Music {
                 await Task.Delay(waitPerAttempt);
             }
             if (prebufferingComplete) {
-                Console.WriteLine($"Prebuffering finished in {bufferAttempts*500}");
+                Console.WriteLine($"Prebuffering finished in {bufferAttempts * 500}");
             }
             // prebuffering wait stuff end
 
             if (buffer.Length > 0) {
                 Console.WriteLine("Prebuffering complete.");
-            } else {
+            }
+            else {
                 Console.WriteLine("Nothing was buffered, try another song and check your GoogleApikey.");
             }
 
@@ -283,11 +292,13 @@ namespace NadekoBot.Classes.Music {
                     if (attempt == 4) {
                         Console.WriteLine($"Failed to read {attempt} times. Breaking out. [{DateTime.Now.Second}]");
                         break;
-                    } else {
+                    }
+                    else {
                         ++attempt;
                         await Task.Delay(15);
                     }
-                } else
+                }
+                else
                     attempt = 0;
 
                 if (State == StreamState.Completed) {

NadekoBot/Commands/ServerGreetCommand.cs

@@ -52,7 +52,10 @@ namespace NadekoBot.Commands {
 
             if (controls.ByePM) {
                 Greeted++;
-                await e.User.SendMessage($"`Farewell Message From {e.Server.Name}`\n" + msg);
+                try {
+                    await e.User.SendMessage($"`Farewell Message From {e.Server?.Name}`\n" + msg);
+                }
+                catch { }
             } else {
                 if (channel == null) return;
                 Greeted++;

NadekoBot/Modules/Music.cs

@@ -207,6 +207,23 @@ namespace NadekoBot.Modules {
                       mc.VoiceClient = await mc.VoiceChannel.JoinAudio();
                   });
 
+                cgb.CreateCommand("rm")
+                    .Description("Removes a song by a # from the queue")
+                    .Parameter("num",ParameterType.Required)
+                    .Do(async e => {
+                        var arg = e.GetArg("num");
+                        int num;
+                        MusicControls mc;
+                        if (!musicPlayers.TryGetValue(e.Server, out mc) || !int.TryParse(arg, out num)) {
+                            return;
+                        }
+                        if (num <= 0 || num > mc.SongQueue.Count)
+                            return;
+
+                        mc.SongQueue.RemoveAt(num - 1);
+                        await e.Send($"🎵Song at position `{num}` has been removed.");
+                    });
+
                 cgb.CreateCommand("debug")
                     .Description("Writes some music data to console. **BOT OWNER ONLY**")
                     .Do(e => {
@@ -229,7 +246,7 @@ namespace NadekoBot.Modules {
                     await e.Send("Failed to create a music player for this server.");
                     return;
                 }
-            if (query == null || query.Length < 4)
+            if (query == null || query.Length < 3)
                 return;
 
             var player = musicPlayers[e.Server];