TotalFreedomMod/commons/src/main/java/me/totalfreedom/totalfreedommod/ServerPing.java

package me.totalfreedom.totalfreedommod;

import com.google.gson.Gson;
import me.totalfreedom.totalfreedommod.config.ConfigEntry;
import me.totalfreedom.totalfreedommod.util.FUtil;
import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder;
import org.bukkit.Bukkit;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.server.ServerListPingEvent;

import java.io.InputStreamReader;

public class ServerPing extends FreedomService
{
    private final Gson gson = new Gson();
    private final VersionMeta meta = gson.fromJson(new InputStreamReader(Bukkit.class.getClassLoader().getResourceAsStream("version.json")),VersionMeta.class);

    @Override
    public void onStart()
    {
    }

    @Override
    public void onStop()
    {
    }

    @EventHandler(priority = EventPriority.HIGH)
    public void onServerPing(ServerListPingEvent event)
    {
        final String ip = event.getAddress().getHostAddress().trim();

        if (plugin.bm.isIpBanned(ip))
        {
            event.motd(FUtil.miniMessage(ConfigEntry.SERVER_BAN_MOTD.getString()));
            return;
        }

        if (ConfigEntry.ADMIN_ONLY_MODE.getBoolean())
        {
            event.motd(FUtil.miniMessage(ConfigEntry.SERVER_ADMINMODE_MOTD.getString()));
            return;
        }

        if (LoginProcess.isLockdownEnabled())
        {
            event.motd(FUtil.miniMessage(ConfigEntry.SERVER_LOCKDOWN_MOTD.getString()));
            return;
        }

        if (Bukkit.hasWhitelist())
        {
            event.motd(FUtil.miniMessage(ConfigEntry.SERVER_WHITELIST_MOTD.getString()));
            return;
        }

        if (Bukkit.getOnlinePlayers().size() >= Bukkit.getMaxPlayers())
        {
            event.motd(FUtil.miniMessage(ConfigEntry.SERVER_FULL_MOTD.getString()));
            return;
        }

        event.motd(FUtil.miniMessage(ConfigEntry.SERVER_MOTD.getString(), Placeholder.unparsed("version", meta.id)));
    }

    private static class VersionMeta
    {
        private String id;
    }
}