package com.tokheim.aifueling.netty;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;

@Slf4j
@Component
public class NettyServer {
    @Autowired
    private NettyInitializer nettyInitializer;

    @Value("${nettyInfo.port}")
    private int port;

    @Value("${nettyInfo.boosThreadCount}")
    private int boosThreadCount;

    @Async
    public void start() {
        NioEventLoopGroup boosLoopGroup = new NioEventLoopGroup(boosThreadCount);
        NioEventLoopGroup workLoopGroup = new NioEventLoopGroup();

        try {
            ServerBootstrap serverBootstrap = new ServerBootstrap();
            serverBootstrap.group(boosLoopGroup, workLoopGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(nettyInitializer)
                    .option(ChannelOption.SO_BACKLOG,1024)
                    .childOption(ChannelOption.SO_KEEPALIVE,true);

            ChannelFuture channelFuture = serverBootstrap.bind(port).sync();
            log.info("Server started on port {}", port);
            channelFuture.channel().closeFuture().sync();

        } catch (InterruptedException e) {
            e.printStackTrace();
            log.error(e.getMessage());
        } finally {
            boosLoopGroup.shutdownGracefully();
            workLoopGroup.shutdownGracefully();
        }


    }

}