package com.l2jserver.game.net.handler;

import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelHandler;

import com.l2jserver.game.net.Lineage2Connection;
import com.l2jserver.game.net.packet.ClientPacket;

/**
 * This handler dispatches the {@link ClientPacket#process(Lineage2Connection)}
 * method and creates a new {@link Lineage2Connection} once a new channel is
 * open.
 * 
 * @author <a href="http://www.rogiel.com">Rogiel</a>
 */
public class Lineage2PacketHandler extends SimpleChannelHandler {
	/**
	 * The Lineage 2 connection
	 */
	private Lineage2Connection connection;

	@Override
	public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e)
			throws Exception {
		connection = new Lineage2Connection(e.getChannel());
		connection.getPacketWriter().setConnection(connection);

		super.channelOpen(ctx, e);
	}

	@Override
	public void messageReceived(ChannelHandlerContext ctx, MessageEvent e)
			throws Exception {
		final Object msg = e.getMessage();
		if (!(msg instanceof ClientPacket))
			return;
		final ClientPacket packet = (ClientPacket) msg;
		packet.process(connection);
		super.messageReceived(ctx, e);
	}

	@Override
	public void writeRequested(ChannelHandlerContext ctx, MessageEvent e)
			throws Exception {
		super.writeRequested(ctx, e);
	}
}