Staff.java

package eu.trinitydev.staff.commands;

import eu.trinitydev.staff.Core;
import net.md_5.bungee.api.ChatColor;
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by Thiemo on 7-1-2016.
 * No part of this publication may be reproduced, distributed, or transmitted in any form or by any means.
 * Copyright © 2016 by Thiemo
 */
public class Staff implements CommandExecutor {

    private Core plugin;

    public Staff(Core instance) {
        this.plugin = instance;
    }

    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if (!(sender instanceof Player)) {
            return false;
        }

        Player p = (Player) sender;
        if (args.length == 0) {
            List<String> display = plugin.getConfig().getStringList("display");
            List<String> staff = plugin.getConfig().getStringList("staffs");
            List<String> on_staff = new ArrayList<String>();
            for(String d : display) {
                if(d.contains("%list") && d.contains("%status")) {
                    for(String s : staff) {
                       Player st = Bukkit.getPlayer(s);
                        if(st != null) {
                            on_staff.add(s);
                        }

                        String on = isOnline(on_staff, s) ? plugin.getConfig().getString("status.online") : plugin.getConfig().getString("status.offline");
                        p.sendMessage(ChatColor.translateAlternateColorCodes('&', d.replace("%list", s).replace("%status", on)));
                    }
                } else {
                    if(d.contains("%amount")) {
                        d = d.replace("%amount", String.valueOf(on_staff.size()));
                    }
                    p.sendMessage(ChatColor.translateAlternateColorCodes('&', d));
                }
            }
        } else  if (args.length == 1) {
            if(args[0].equalsIgnoreCase("reload")) {
                if(p.hasPermission("staff.reload")) {
                    plugin.reloadConfig();
                    p.sendMessage("\n" + ChatColor.YELLOW + "> Staffs Config.yml has been reloaded" + "\n ");
                }
            }
        }
        return false;
    }

    private boolean isOnline(List<String> l, String s) {
        if (l.contains(s)) {
            return true;
        }

        return false;
    }

}