using Microsoft.Extensions.Logging;
using SlnMesnac.Config;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TouchSocket.Core;
using TouchSocket.Sockets;

namespace SlnMesnac.TouchSocket
{
    public class TcpServer
    {
        private DebugConfig config = DebugConfig.Instance;
        private ILogger<TcpServer> _logger;
        private readonly TcpService _service;
        #region 委托事件
        /// <summary>
        /// 刷新扫码器状态
        /// </summary>
        /// <param name="materialCodeStr"></param>
        /// <param name="ip"></param>
        public delegate void RefreshState(string ip, bool flag);
        public static event RefreshState RefreshStateEvent;

        //NoRead事件通知
        //public delegate void MessageNoRead();
        //public static event MessageNoRead MessageNoReadEvent;

        //扫码事件
        public delegate void RefreshMaterialCodeStr(string materialCodeStr, string ip);
        public static event RefreshMaterialCodeStr RefreshMaterialCodeStrEvent;

        //相机拍照识别结果事件
        public delegate void CameraResult(string result);
        public static event CameraResult CameraResultEvent;

        #endregion

        public TcpServer(ILogger<TcpServer> logger,TcpService tcpService)
        {
            _logger = logger;
            _service = tcpService;
        }

        public void Init(int serverPort)
        {
            try
            {
                Console.WriteLine("启动Socket服务");
                _service.Connecting = (client, e) => {  
                    _logger.LogInformation($"客户端{client.IP}正在接入服务");
                    return EasyTask.CompletedTask;
                };
                _service.Connected = (client, e) => {   
                    _logger.LogInformation($"客户端{client.IP}接入服务成功");
                    RefreshStateEvent?.Invoke(client.IP, true);
                    return EasyTask.CompletedTask;
                };
                _service.Disconnected = (client, e) => { 
                    _logger.LogInformation($"客户端{client.IP}断开连接");
                    RefreshStateEvent?.Invoke(client.IP, false);
                    return EasyTask.CompletedTask;
                };
                _service.Received = (client, e) =>
                {
                    try
                    {
                        //从客户端收到信息
                        var mes = Encoding.UTF8.GetString(e.ByteBlock.Buffer, 0, e.ByteBlock.Len);//注意：数据长度是byteBlock.Len

                        //心跳包
                        if (mes == "heartbeat")
                        {
                            //扫码器心跳连接
                            client.Logger.Info($"心跳{client.IP}:{client.Port}》接收到心跳信息：{mes}");
                            RefreshStateEvent?.Invoke(client.IP, true);
                        }
                        else if (mes == "NoRead")
                        {
                            client.Logger.Info($"客户端{client.IP}:{client.Port}》NoRead事件{mes}");
                            // TODO
                        }
                        else
                        {
                            string code = mes.Trim().TrimEnd('\0');
                            client.Logger.Info($"客户端{client.IP}:{client.Port}》接收到信息：{mes}");
                            // 区分相机扫码器数据
                            if (client.IP == config.ScannerIP)
                            {
                                if (code.Contains("heart"))
                                {   // 粘包丢弃
                                    return Task.CompletedTask;
                                }
                                RefreshMaterialCodeStrEvent?.Invoke(code, client.IP);
                            }
                            else if (client.IP == config.CameraIP)
                            {
                                // 相机返回数据
                                CameraResultEvent?.Invoke(code);
                            }
                           

                        }
                    }
                    catch (Exception ex)
                    {
                        _logger.LogError($"socket接收数据异常:{ex.Message}");
                    }
                    return EasyTask.CompletedTask;
                };

                _service.Setup(new TouchSocketConfig()//载入配置     
                    .SetListenIPHosts(new IPHost[] { new IPHost($"0.0.0.0:{serverPort}") })
                    .ConfigureContainer(a =>//容器的配置顺序应该在最前面
                    {
                        a.AddConsoleLogger();
                    })
                    .ConfigurePlugins(a =>
                    {
                        //自定义插件
                    }));
                _service.Start();
                _logger.LogInformation($"TcpServer启动成功，监听端口：{serverPort}");
            }
            catch (Exception ex)
            {
                //throw new InvalidOperationException($"TcpServer启动异常：{ex.Message}");
                _logger.LogError($"TcpServer启动异常：{ex.Message}");
            }

        }

        /// <summary>
        /// 向所有客户端发送心跳
        /// </summary>
        //public void SendHeartBeat()
        //{
        //    var clients = _service.SocketClients.GetClients();
        //    foreach (var item in clients)
        //    {
        //        _service.Send(item.Id, "heartbeat");
        //    }
        //}


        /// <summary>
        /// 向指定相机发送指令
        /// </summary>
        public void SendCommand(string ip, string command)
        {
            ISocketClient client = _service.SocketClients.GetClients().FirstOrDefault(x => x.IP ==ip);
            if (client != null)
            {
                _service.Send(client.Id, command);
            }        
        }


    }
}