/*
 * Minecraft Forge
 * Copyright (c) 2016-2018.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation version 2.1
 * of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

package net.minecraftforge.fml.common.network.internal;

import net.minecraftforge.fml.common.FMLLog;
import net.minecraftforge.fml.common.network.handshake.NetworkDispatcher;
import net.minecraftforge.fml.common.network.internal.FMLMessage.CompleteHandshake;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.channel.ChannelHandler.Sharable;

@Sharable
public class HandshakeCompletionHandler extends SimpleChannelInboundHandler<FMLMessage.CompleteHandshake> {
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, CompleteHandshake msg) throws Exception
    {
        NetworkDispatcher dispatcher = ctx.channel().attr(NetworkDispatcher.FML_DISPATCHER).getAndSet(null);
        dispatcher.completeHandshake(msg.target);
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception
    {
        FMLLog.log.error("HandshakeCompletionHandler exception", cause);
        super.exceptionCaught(ctx, cause);
    }
}