package xyz.etztech.qol.listeners;

import org.apache.commons.lang.StringUtils;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.server.ServerListPingEvent;
import org.bukkit.util.CachedServerIcon;
import xyz.etztech.qol.QoL;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.logging.Level;

public class ServerListPingListener implements Listener {

    private QoL plugin;

    public ServerListPingListener(QoL plugin) {
        this.plugin = plugin;
    }

    @EventHandler
    public void onPing(ServerListPingEvent event) {
        // MAX PLAYERS
        int max = plugin.getConfig().getInt("server-list.max");
        if (event.getMaxPlayers() < max) {
            Bukkit.getConsoleSender().sendMessage(ChatColor.RED + "Your server max players is lower than QoL! This can cause unintended behaviour.");
        }
        if (max > 0) {
            event.setMaxPlayers(max);
        }

        // MOTD
        String motd = plugin.getConfig().getString("server-list.motd");
        if (StringUtils.isNotBlank(motd)) {
            event.setMotd(motd);
        }

        // FAVICON
        String path = plugin.getConfig().getString("server-list.favicon");
        if (StringUtils.isNotBlank(path)) {
            File file = new File(plugin.getDataFolder(), path);
            try {
                Image image = ImageIO.read(file);
                ImageIO.setCacheDirectory(plugin.getDataFolder());
                image = image.getScaledInstance(64, 64, Image.SCALE_DEFAULT);
                CachedServerIcon favicon = Bukkit.loadServerIcon(toBufferedImage(image));
                event.setServerIcon(favicon);
            } catch (Exception ex) {
                plugin.log("Could not load favicon from " + file.getAbsolutePath());
                ex.printStackTrace();
            }
        }
    }

    private static BufferedImage toBufferedImage(Image img)
    {
        if (img instanceof BufferedImage)
        {
            return (BufferedImage) img;
        }

        // Create a buffered image with transparency
        BufferedImage bimage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);

        // Draw the image on to the buffered image
        Graphics2D bGr = bimage.createGraphics();
        bGr.drawImage(img, 0, 0, null);
        bGr.dispose();

        // Return the buffered image
        return bimage;
    }

}