using ProjectBase.Data.BaseDAL;
using ProjectBase.Data.Logs;
using SIMDP.BLL;
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Timers;

namespace SIMDP.Device
{
    public class RecvScanner
    {
        Socket socketScanner = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        System.Timers.Timer timerScanner = null;
        IPEndPoint epServer = null;
        string address = "";
        bool running = false;
        Action<string> receiveAct = null;

        public RecvScanner(double interval = 1000)
        {
            socketScanner.Blocking = true;
            timerScanner = new System.Timers.Timer(interval);
            timerScanner.AutoReset = false;
            timerScanner.Elapsed += ReceiveScanner;
        }

        /// <summary>
        /// 启动扫码枪接收线程
        /// </summary>
        /// <param name="Ip"></param>
        /// <param name="Port"></param>
        public void Start(string Ip, int Port, Action<string> action)
        {
            if (running)
            {
                LogHelper.log.Error($"接收扫码器({address})正在运行中，无法重复启动({Ip})");
                return;
            }
            address = $"{Ip}:{Port.ToString()}";
            LogHelper.log.Info($"接收扫码器({address})启动");
            epServer = new IPEndPoint(IPAddress.Parse(Ip), Port);
            receiveAct = action;
            running = true;
            timerScanner.Start();
        }

        public void Stop()
        {
            running = false;
        }

        private void ReceiveScanner(object sender, ElapsedEventArgs e)
        {
            if (!socketScanner.Connected)
            {
                try
                {
                    socketScanner.Connect(epServer);
                    LogHelper.log.Info($"接收扫码器({address})已连接，开始接收数据...");
                }
                catch
                {
                }
            }
            else
            {
                TryReceive();
            }
            if (running)
                timerScanner.Start();
        }

        private void TryReceive()
        {
            string data = "";
            try
            {
                byte[] temp = new byte[1024];
                while (socketScanner.Poll(2000, SelectMode.SelectRead))
                {
                    int nRead = socketScanner.Receive(temp);
                    if (nRead == 0)
                    {
                        LogHelper.log.Warn($"接收扫码器({address})通信断开，自动重连...");
                        socketScanner.Close();
                        return;
                    }
                    data += Encoding.UTF8.GetString(temp, 0, nRead).Trim('\n').Trim('\r');
                }
            }
            catch (Exception ex)
            {
                socketScanner.Close();
                LogHelper.log.Error($"接收扫码器({address})数据发生异常：{ex}");
                //Tool.LogAndNotice("生产过程报警", 3, $"接收扫码器({address})数据发生异常：{ex}");
            }
            if (data.Length > 0) // 收到数据后执行动作
            {
                receiveAct(data);
            }
        }

    }
}