package pf.bot.loader;

import java.applet.Applet;
import java.applet.AppletStub;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FontMetrics;
import java.awt.Graphics;

public class ClientLoader extends Applet implements Runnable {

    private static final long serialVersionUID = 10L;

    private Applet applet;

    private ClassLoader loader;

    public synchronized final void destroy() {
        if (applet != null)
            applet.destroy();
    }

    public synchronized final void start() {
        if (applet != null)
            applet.start();
    }

    public synchronized final void stop() {
        if (applet != null)
            applet.stop();
    }

    public synchronized final void init() {
        Container container = getParent();
        if (null != container)
            container.setBackground(Color.black);
        setBackground(Color.black);
        Thread thread = new Thread(this, "Loader");
        thread.start();
    }

    public final void paint(Graphics g) {
        if (applet != null)
            applet.paint(g);
        else {
            String status = "Loading...";
            g.setColor(Color.WHITE);
            FontMetrics fm = g.getFontMetrics();
            g.drawString(status, (getWidth() - fm.stringWidth(status)) / 2,
                    getHeight() / 2);
        }
    }

    public final void update(Graphics g) {
        if (applet != null)
            applet.update(g);
    }

    public Applet getApplet() {
        return applet;
    }

    @Override
    public void run() {
        try {
            loader = new ClientClassLoader();
            Class<?> app = loader.loadClass("client");
            applet = (Applet) app.newInstance();
            app.getMethod("provideLoaderApplet", new Class[] { Applet.class })
                    .invoke(null, this);
            AppletStub stub = new ClientStub(applet);
            this.setStub(stub);
            applet.init();
            applet.start();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}