Added command and updated music player

Added enum with available source to play from

src/main/java/netneutrality/command/music/DeleteQueueCommand.java

@@ -0,0 +1,68 @@
+package netneutrality.command.music;
+
+/*
+ * Copyright (c) anthorob
+ *
+ * This file is closed-source. It should not be distributed or copied in any way or form
+ */
+
+import net.dv8tion.jda.core.entities.Member;
+import net.dv8tion.jda.core.entities.VoiceChannel;
+import net.dv8tion.jda.core.events.message.MessageReceivedEvent;
+import netneutrality.command.AbstractCommand;
+import netneutrality.command.Visibility;
+import netneutrality.music.MusicManager;
+
+public class DeleteQueueCommand extends AbstractCommand {
+    @Override
+    public boolean needAdmin() {
+        return true;
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return true;
+    }
+
+    @Override
+    public String getCommand() {
+        return "deletequeue";
+    }
+
+    @Override
+    public String[] getAlias() {
+        return new String[]{"delq"};
+    }
+
+    @Override
+    public String getUsage() {
+        return null;
+    }
+
+    @Override
+    public Visibility getVisibility() {
+        return Visibility.CHANNEL;
+    }
+
+    @Override
+    public String execute(MessageReceivedEvent event, String args) {
+        Member member = event.getMember();
+        MusicManager player = MusicManager.get(event.getGuild());
+
+        if (member.getVoiceState().inVoiceChannel()) {
+            VoiceChannel vChannel = member.getVoiceState().getChannel();
+
+            if (player.isConnected()) {
+                if (player.isConnectedTo(vChannel)) {
+                    player.getScheduler().queue.clear();
+                } else
+                    event.getTextChannel().sendMessage("Not in your voice channel").queue();
+            } else {
+                event.getTextChannel().sendMessage("Not in a voice channel").queue();
+            }
+        } else
+            event.getTextChannel().sendMessage("You are not in a voice channel").queue();
+
+        return null;
+    }
+}

src/main/java/netneutrality/music/MusicManager.java

@@ -21,15 +21,17 @@ import netneutrality.MusicBot;
 import netneutrality.handler.LogHandler;
 import netneutrality.utils.YoutubeClass;
 
+import java.util.LinkedList;
+import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
 public class MusicManager {
 
-    private AudioPlayerManager playerManager = new DefaultAudioPlayerManager();
+    private final static AudioPlayerManager playerManager = new DefaultAudioPlayerManager();
     private AudioPlayer player;
     private TrackScheduler scheduler;
-    private static Map<String, MusicManager> managers = new ConcurrentHashMap<>();
+    private final static Map<String, MusicManager> managers = new ConcurrentHashMap<>();
     private long guildId;
     private boolean isPlaying = false;
 
@@ -87,7 +89,9 @@ public class MusicManager {
     }
 
     public synchronized void stopMusic() {
-        scheduler.getTextChannel().getManager().setTopic("").queue();
+        if (scheduler.getTextChannel() != null)
+            scheduler.getTextChannel().getManager().setTopic("").queue();
+
         player.destroy();
     }
 
@@ -99,10 +103,9 @@ public class MusicManager {
 
     public synchronized void play(String url, TextChannel channel, boolean silent ) {
 
-        String youtubeCode = YoutubeClass.getCodeFromUrl(url);
-        System.out.println(youtubeCode);
+        String youtubeCode = SourceFinder.getIdentifier(url);
         scheduler.setTextChannel(channel);
-        if (!youtubeCode.isEmpty()) {
+        if (youtubeCode != null) {
             playerManager.loadItem(youtubeCode, new AudioLoadResultHandler() {
                 @Override
                 public void trackLoaded(AudioTrack audioTrack) {
@@ -145,4 +148,14 @@ public class MusicManager {
     public void setVolume(int volume) {
         player.setVolume(volume);
     }
+
+    public TrackScheduler getScheduler() {
+        return scheduler;
+    }
+
+    public List<String> getAllQueuedTrack() {
+        List<String> queuedTracks = new LinkedList<>();
+        scheduler.queue.forEach((a) -> queuedTracks.add(a.getInfo().title));
+        return queuedTracks;
+    }
 }

src/main/java/netneutrality/music/SourceFinder.java

@@ -0,0 +1,52 @@
+package netneutrality.music;
+
+import netneutrality.utils.YoutubeClass;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/*
+ * Copyright (c) anthorob
+ *
+ * This file is closed-source. It should not be distributed or copied in any way or form
+ */
+enum SourceEnum {
+    Youtube,
+    Soundcloud,
+    Bandcamp,
+    Vimeo,
+    Nothing
+
+}
+
+public class SourceFinder {
+    private static Pattern youtubePattern = Pattern.compile("^(?:https?://)?(?:(?:www\\.)?)?(?:youtube\\.com|youtu\\.be)/.*?(?:embed|e|v|watch.*?v=)?/?([-_a-z0-9]{10,})?(?:&?index=\\d+)?(?>(?:playlist\\?|&)?list=([^#\\\\&\\?]{12,}))?", Pattern.CASE_INSENSITIVE);
+    private static Matcher youtubeMatcher;
+    private static Matcher soudcloudMatcher;
+    private static Matcher BandcampMatcher;
+    private static Matcher vimeoMatcher;
+
+    public static SourceEnum getSource(String url) {
+        youtubeMatcher = youtubePattern.matcher(url);
+
+        if (youtubeMatcher.find())
+            return SourceEnum.Youtube;
+
+        return SourceEnum.Nothing;
+    }
+
+    public static String getIdentifier(String url) {
+        String identifier = "";
+
+        switch (getSource(url)) {
+
+            case Youtube:
+                return youtubeMatcher.group(1);
+            case Nothing:
+                identifier = null;
+                break;
+        }
+
+        return identifier;
+    }
+}