🎵 List all songs and execute play command after click event

src/main/java/de/petropia/nbsDemo/NbsDemo.java

@@ -1,17 +1,42 @@
 package de.petropia.nbsDemo;
 
+import org.bukkit.Bukkit;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import de.petropia.nbsDemo.commands.SongCommand;
+import de.petropia.nbsDemo.song.SongList;
+
 public class NbsDemo extends JavaPlugin {
 
-	private static JavaPlugin instance;
+	private static NbsDemo instance;
+	private SongList songList;
 
 	@Override
 	public void onEnable() {
+		if(!isNoteBlockApiPresent()) {
+			getLogger().warning("Bitte füge das NoteBlockAPI plugin in den Pluginsordner hinzu, damit dieses Plugin ordnungsgemäß funktioniert!");
+			getServer().getPluginManager().disablePlugin(this);
+			return;
+		}
 		instance = this;
+		songList = new SongList(getDataFolder().toPath().toString() + "/Songs");
+		getCommand("songs").setExecutor(new SongCommand());
+	}
+
+	private boolean isNoteBlockApiPresent() {
+		return Bukkit.getServer().getPluginManager().getPlugin("NoteBlockAPI") != null;
 	}
 
-	public static JavaPlugin getInstance() {
+	public static NbsDemo getInstance() {
 		return instance;
 	}
+
+	public SongList getSongList() {
+		return songList;
+	}
+
+	public void setSongList(SongList songList) {
+		this.songList = songList;
+	}
+
 }

src/main/java/de/petropia/nbsDemo/commands/SongCommand.java

@@ -1,16 +1,23 @@
 package de.petropia.nbsDemo.commands;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.io.File;
 
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 
+import com.xxmicloxx.NoteBlockAPI.model.Song;
+import com.xxmicloxx.NoteBlockAPI.songplayer.RadioSongPlayer;
+
+import de.petropia.nbsDemo.NbsDemo;
+import de.petropia.nbsDemo.song.SongList;
 import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.event.ClickEvent;
+import net.kyori.adventure.text.event.HoverEvent;
 import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.TextDecoration;
 
 public class SongCommand implements CommandExecutor {
 
@@ -23,7 +30,8 @@ public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command
 			return true;
 		}
 
-		Player player = (Player) sender;
+		final Player player = (Player) sender;
+		final SongList songlist = NbsDemo.getInstance().getSongList();
 
 		//Permission check and error message if fails
 		if(!player.hasPermission("nbsdemo.song")) {
@@ -32,11 +40,55 @@ public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command
 			return true;
 		}
 
+		//Check if arguments are present and if the first is play, than the song is played from the 2. argument
+		if(args.length != 0) {
+			if(args.length == 2 && args[0].equalsIgnoreCase("play")) {
+				playSong(Integer.parseInt(args[1]), player);
+			}
+			return false;
+		}
+
 		player.sendMessage(Component.text("Folgende Songs sind verfügbar: ").color(NamedTextColor.GOLD));
 
+		//Check if Songs are present
+		if(songlist.getSongs().size() == 0) {
+			player.sendMessage(Component.text("Keine Songs verfügbar").color(NamedTextColor.RED).decorate(TextDecoration.UNDERLINED));
+			return true;
+		}
 
+		//loop over every song and sends it title as message to player with click event and when clicked, it play the song
+		for(int i = 0; i < songlist.getSongs().size(); i++) {
+			Song song = songlist.getSongs().get(i);
+			Component message = Component.text()
+			.append(Component.text("[").color(NamedTextColor.GRAY))
+			.append(Component.text(i).color(NamedTextColor.GOLD))
+			.append(Component.text("] ").color(NamedTextColor.GRAY))
+			.append(Component.text(getSongName(song, i)).color(NamedTextColor.GRAY).decorate(TextDecoration.ITALIC))
+			.hoverEvent(HoverEvent.showText(Component.text("Klicke um " + getSongName(song, i) + " zu hören")))
+			.clickEvent(ClickEvent.runCommand("/songs play " + i))
+			.build();
+			player.sendMessage(message);
+		}
 
 		return false;
 	}
+
+	//return the given name in the .nbs file or, if it doesnt exist, the file name
+	private String getSongName(Song song, int index) {
+		String name = song.getTitle();
+		if(!name.isEmpty() || !name.isBlank()) {
+			return name;
+		}
+		File file = NbsDemo.getInstance().getSongList().getNbsFiles().get(index);
+		return file.getName().replaceAll("^.*?(([^/\\\\\\.]+))\\.[^\\.]+$", "$1");
+	}
+
+	//plays the song for the player. Songid is equal to the index in SongList#getSongs()
+	private void playSong(int songid, Player player) {
+		Song song = NbsDemo.getInstance().getSongList().getSongs().get(songid);
+		RadioSongPlayer radioSongPlayer = new RadioSongPlayer(song);
+		radioSongPlayer.addPlayer(player);
+		radioSongPlayer.setPlaying(true);
+	}
 
 }