/*
 * Copyright (c) 2019-2023 GeyserMC. http://geysermc.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @author GeyserMC
 * @link https://github.com/GeyserMC/Geyser
 */

package org.geysermc.geyser.network.netty.handler;

import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import lombok.RequiredArgsConstructor;
import org.cloudburstmc.netty.channel.raknet.RakPing;
import org.cloudburstmc.netty.channel.raknet.RakPong;
import org.cloudburstmc.netty.channel.raknet.RakServerChannel;
import org.cloudburstmc.netty.channel.raknet.config.RakChannelOption;
import org.geysermc.geyser.network.netty.GeyserServer;

import java.net.InetSocketAddress;

@ChannelHandler.Sharable
@RequiredArgsConstructor
public class RakPingHandler extends SimpleChannelInboundHandler<RakPing> {
    public static final String NAME = "rak-ping-handler";

    private final GeyserServer server;

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, RakPing msg) {
        long guid = ctx.channel().config().getOption(RakChannelOption.RAK_GUID);

        InetSocketAddress address = msg.getSender();
        InetSocketAddress clientAddress = ((RakServerChannel) ctx.channel()).getClientAddress(address);
        RakPong pong = msg.reply(guid, this.server.onQuery(ctx.channel(), clientAddress).toByteBuf());
        ctx.writeAndFlush(pong);
    }
}
