package de.essentials.main;

import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scoreboard.DisplaySlot;
import org.bukkit.scoreboard.Objective;
import org.bukkit.scoreboard.Scoreboard;

import de.essentials.mysql.MySQL;
import de.essentials.util.MoneyManager;
import ru.tehkode.permissions.bukkit.PermissionsEx;

public class PlayerJoin implements Listener {

	private Main plugin;
	int sched;
	public PlayerJoin(Main plugin) {
		this.plugin = plugin;
	}
	Scoreboard board = Main.board;
	Objective score;
	@SuppressWarnings("deprecation")
	@EventHandler
	public void onPlayerJoin(PlayerJoinEvent e) {


		score = board.registerNewObjective("aaa", "bbb");

		String playername = e.getPlayer().getName();
		e.setJoinMessage("§eWillkomen auf dem §cDeathMC §eServer");

		if(!MoneyManager.isExist(getUUID(playername))) {
			MySQL.update("INSERT INTO Player(Spielername, UUID, Money) VALUES ('"+playername+"','"+ getUUID(playername) + "','1000')");

		}
		sendScoreboard(e.getPlayer());
		sched = Bukkit.getScheduler().scheduleSyncRepeatingTask(plugin, new Runnable() {

			@Override
			public void run() {
				sendScoreboard(e.getPlayer());

			}
		}, 20, 20);
	}



	public void sendScoreboard(Player player) {
		double money = MoneyManager.getMoney(getUUID(player.getName()));
		int spieleranzahl = Bukkit.getServer().getOnlinePlayers().size();
		score.setDisplayName("§6DeathMC");
		score.setDisplaySlot(DisplaySlot.SIDEBAR);
		score.getScore("§aKontostand:").setScore(15);
		score.getScore("§b"+String.valueOf(money)).setScore(14);
		score.getScore("").setScore(13);
		score.getScore("§aSpielerzahl:").setScore(12);;
		score.getScore("§b"+String.valueOf(spieleranzahl)).setScore(11);

		String Team = "";
		if(PermissionsEx.getUser(player).inGroup("Admin")) {
			Team = "000Owner";
		}else if(PermissionsEx.getUser(player).inGroup("Supporter")) {
			Team = "001Supporter";
		}else {
			Team = "002Spieler";
		}
		board.getTeam(Team).addPlayer(player);
		player.setDisplayName(board.getTeam(Team).getPrefix() + player.getName());

		for(Player all: Bukkit.getOnlinePlayers()) {
			all.setScoreboard(board);
		}


	}



	private String getUUID(String playername) {
		return Bukkit.getOfflinePlayer(playername.toLowerCase()).getUniqueId().toString();
	}
}


Main.jar:

public class Main extends JavaPlugin{


	static Scoreboard board;
	@Override
	public void onEnable() {
		instance = this;
		registerCommands();
		registerEvent();
		FileManager.setStandardConfig();
		FileManager.setStandardMySQl();
		FileManager.readConfig();
		FileManager.readMySQl();
		MySQL.connect();
		MySQL.createTable();

		board  = Bukkit.getScoreboardManager().getNewScoreboard();;

		board.registerNewTeam("000Owner");
		board.registerNewTeam("001Supporter");
		board.registerNewTeam("002Spieler");

		board.getTeam("000Owner").setPrefix("§4Owner§7: §4");
		board.getTeam("001Supporter").setPrefix("§aSup§7: §a");
		board.getTeam("002Spieler").setPrefix("§7Spieler: ");

		Bukkit.getConsoleSender().sendMessage(prefix+"§cPlugin erfolgreich aktiviert");
	}


	@Override
	public void onDisable() {
		MySQL.close();
		Bukkit.getConsoleSender().sendMessage(prefix+"§cPlugin erfolgreich deaktiviert");

	}

	private void registerCommands() {
		MoneyCommands moneyCMD = new MoneyCommands(this);
		EssentialsCommand essCMD = new EssentialsCommand(this);
		getCommand("money").setExecutor(moneyCMD);
		getCommand("eco").setExecutor(moneyCMD);
		getCommand("pay").setExecutor(moneyCMD);
		getCommand("fly").setExecutor(essCMD);




	}

	private void registerEvent() {
		this.getServer().getPluginManager().registerEvents(new PlayerJoin(this), this);

	}

	public String prefix;
	public static Main instance;
	public static Main getInstance() {
		return instance;
	}

}