using Abp.Dependency;
using DotNetty.Buffers;
using DotNetty.Codecs;
using DotNetty.Transport.Bootstrapping;
using DotNetty.Transport.Channels;
using DotNetty.Transport.Channels.Sockets;
using Serilog;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime;
using System.Threading.Tasks;
using Yunda.SOMS.OperationsMainSiteGatewayServer.TcpSocket.TestData;

namespace Yunda.SOMS.OperationsMainSiteGatewayServer.TcpSocket.Server
{
    public class DotNettyTcpServer : ISingletonDependency
    {
        // 定义 MessageReceived 事件
        public event Action< byte, byte[], byte> MessageReceived; // 装置地址，功能码，消息
        public Dictionary<string,DotNettyServerHandler> dotNettyServerHandlers = new Dictionary<string, DotNettyServerHandler>();
        public DotNettyTcpServer()
        {
            //_dotNettyServerHandler = dotNettyServerHandler;
            MessageReceived += DotNettyTcpServer_MessageReceived;

        }

        private async void DotNettyTcpServer_MessageReceived(byte addr, byte[] data, byte functype)
        {
            if (functype == 10) //总召
            {
                SimulateData.Test1(this);
                await Task.Delay(1000);

                SimulateData.Test2(this);
                await Task.Delay(1000);

                SimulateData.Test3(this);
                await Task.Delay(1000);

                SimulateData.Test4(this);
                await Task.Delay(1000);
            }
        }

        MultithreadEventLoopGroup bossGroup ;
        MultithreadEventLoopGroup workerGroup ;
        int maxFrameLength = 65536;          // 设置最大帧长度
        int lengthFieldOffset = 1;          // 长度字段的偏移量，从启动字符之后开始
        int lengthFieldLength = 2;          // 长度字段的字节长度
        int lengthAdjustment = -3;          // 长度调整，将读取的长度减去启动字符和长度字段的字节数
        int initialBytesToStrip = 0;        // 保留所有字节

        public  async Task RunServerAsync(byte addr)
        {
            bossGroup = new MultithreadEventLoopGroup(1);
            workerGroup = new MultithreadEventLoopGroup();
            try
            {
                GCSettings.LatencyMode = GCLatencyMode.LowLatency;
                var bootstrap = new ServerBootstrap();
                bootstrap.Group(bossGroup, workerGroup)
                    .Channel<TcpServerSocketChannel>()
                    .Option(ChannelOption.SoBacklog, 100)
                    .ChildHandler(new ActionChannelInitializer<IChannel>(channel =>
                    {
                        var serverHandler = new DotNettyServerHandler(MessageReceived, OnChannelInactive, addr);
                        channel.Pipeline.AddLast(new LengthFieldBasedFrameDecoder(
                            maxFrameLength,
                            lengthFieldOffset,
                            lengthFieldLength,
                            lengthAdjustment,
                            initialBytesToStrip
                        ));
                        channel.Pipeline.AddLast(serverHandler);
                        channel.Pipeline.AddLast("hexDumpHandler", new HexDumpHandler());
                        string ip = channel.RemoteAddress.ToString();
                       
                        if (!dotNettyServerHandlers.ContainsKey(ip))
                        {
                            dotNettyServerHandlers.Add(ip, serverHandler);
                        }
                        else
                        {
                            dotNettyServerHandlers[ip] = serverHandler;
                        }
                    }));

                IChannel boundChannel = await bootstrap.BindAsync(3000);
                Log.Information("服务器启动并监听端口 3000...");
            }
            finally
            {
              
            }

        }
        // 客户端断开连接时的回调
        private void OnChannelInactive(string channelIp)
        {
            Console.WriteLine($"客户端断开连接: {channelIp}");
            dotNettyServerHandlers.Remove(channelIp);
        }
        public async Task StopSeverAsync()
        {
            try
            {
                await Task.WhenAll(
                bossGroup.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1)),
                workerGroup.ShutdownGracefullyAsync(TimeSpan.FromMilliseconds(100), TimeSpan.FromSeconds(1)));
            }
            catch (Exception ex)
            {
                Log.Information("服务器关闭并监听端口 7110...", "获取信息");
            }
            
        }
        public async void SendMessage(byte address, byte functionType, string data)
        {
            try
            {
                foreach (var item in dotNettyServerHandlers.Values)
                {
                    //byte addr = byte(new Random().Next(1,99));
                    byte[] utf8Bytes = System.Text.Encoding.UTF8.GetBytes(data);
                    await item.SendCustomMessageAsync(address, functionType, utf8Bytes);

                }
            }
            catch (Exception ex)
            {

                Log.Error(ex,"");
            }
            
        }
    }
}