using Microsoft.Extensions.DependencyInjection;
using SlnMesnac.Config;
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace SlnMesnac.Common
{
    public sealed class ControlOffLineScanHelper
    {

        #region 单例实现
        private static readonly ControlOffLineScanHelper lazy = new ControlOffLineScanHelper();
        public static ControlOffLineScanHelper Instance
        {
            get
            {
                return lazy;
            }
        }
        #endregion

        #region 变量定义
        private static SerialPort serialPort = new SerialPort();

        #endregion 

        /// <summary>
        /// 扫码委托
        /// </summary>
        /// <param name="materialCodeStr"></param>
        /// <param name="ip"></param>
        public delegate void RefreshMaterialCodeStr(string code);
        public static event RefreshMaterialCodeStr RefreshMaterialCodeStrEvent;

        public Action<string> RecAutoDataAction;


        //初始化串口并启动接收数据
        public  void InstanceSerialPort(string ComPort)
        {
            try
            {
                //端口名  注:因为使用的是USB转RS232 所以去设备管理器中查看一下虚拟com口的名字
                serialPort.PortName = ComPort;// portName;
                                           //波特率 霍尼威尔扫码枪115200,普通9600
                serialPort.BaudRate = 115200;
                //奇偶校验
                serialPort.Parity = Parity.None;
                //停止位
                serialPort.StopBits = StopBits.One;
                //数据位
                serialPort.DataBits = 0x8;
                //忽略null字节
                serialPort.DiscardNull = true;

                //接收事件
                serialPort.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(serialPort1_DataReceived);

                //开启串口
                serialPort.Open();
               
               
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message.ToString());
            }
        }

     

        /// <summary>
        /// 接收数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private  void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            //string result = "";
            //result = serialPort.ReadExisting().Trim();
            //RecAutoDataAction?.Invoke(result);
            //Console.WriteLine(result);
            string g_s_Data = "";
            try
            {
                #region
                Thread.Sleep(100);
                do
                {
                    g_s_Data = serialPort.ReadExisting().Trim();
                }
                while (serialPort.BytesToRead > 0);

                if (g_s_Data.Length > 0)
                {
                    //区分箱体码
                    RecAutoDataAction?.Invoke(g_s_Data);

                    //逻辑操作，g_s_Data为条码数据
                }
                GC.Collect();
                #endregion
            }
            catch (Exception ex)
            {

            }
        }
    }
}