Main Class

package de.system.main;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

import de.system.commands.BuildMode;
import de.system.commands.InfoCommands;
import de.system.commands.NavigationGui;
import de.system.commands.RemoveNavigation;
import de.system.commands.RemoveNavigations;
import de.system.commands.RenameNavigation;
import de.system.commands.SetNavigation;
import de.system.commands.SetSpawn;
import de.system.commands.SpawnCommand;
import de.system.listener.CancelManager;
import de.system.utils.FileManager;
import de.system.utils.LobbyItems;

public class System extends JavaPlugin {

    static System plugin;
    FileManager fm = new FileManager();

    public String prefix = ChatColor.translateAlternateColorCodes('&', getConfig().getString("Prefix"));

    //Permissions:

    //- system.setspawn: /setspawn
    //- system.setnav: /setnavigation [Name] [Slot] [ID] ([Sub-ID])
    //- system.removenav: /removenavigation [Name]
    //- system.renamenav: /renamenavigation [Name] [Neuer Name]
    //- system.navgui: /navigationgui
    //- system.build: /buildmode
    //- system.help: /system help

    @Override
    public void onEnable() {

        plugin = this;

        loadConfig();
        loadCommands();
        loadListener();

        fm.createFiles();

        Bukkit.getConsoleSender().sendMessage(prefix + ChatColor.translateAlternateColorCodes('&', getConfig().getString("Started")));

    }

    @Override
    public void onDisable() {

        saveConfig();
        Bukkit.getConsoleSender().sendMessage(prefix + ChatColor.translateAlternateColorCodes('&', getConfig().getString("Stopped")));

    }

    void loadConfig() {
        getConfig().options().copyDefaults(true);
        saveConfig();
    }

    void loadCommands() {
        Bukkit.getPluginCommand("setspawn").setExecutor(new SetSpawn());
        Bukkit.getPluginCommand("spawn").setExecutor(new SpawnCommand());
        Bukkit.getPluginCommand("setnavigation").setExecutor(new SetNavigation(this));
        Bukkit.getPluginCommand("removenavigation").setExecutor(new RemoveNavigation(this));
        Bukkit.getPluginCommand("removenavigations").setExecutor(new RemoveNavigations());
        Bukkit.getPluginCommand("renamenavigation").setExecutor(new RenameNavigation(this));
        Bukkit.getPluginCommand("navigationgui").setExecutor(new NavigationGui());
        Bukkit.getPluginCommand("buildmode").setExecutor(new BuildMode());
        Bukkit.getPluginCommand("system").setExecutor(new InfoCommands());
    }

    void loadListener() {
        PluginManager pm = getServer().getPluginManager();

        pm.registerEvents(new CancelManager(), this);
        pm.registerEvents(new LobbyItems(), this);
    }

    public static System getInstance() {
        return plugin;
    }
}