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

namespace SlnMesnac.Common
{
    public sealed class GunHelper
    {

        #region 单例实现
        private static readonly GunHelper lazy = new GunHelper();

        #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 static GunHelper Instance
        {
            get
            {
                return lazy;
            }
        }
        #endregion


    
        //初始化串口并启动接收数据
        public static void InstanceSerialPort3()
        {
            try
            {
                string port = System.IO.Ports.SerialPort.GetPortNames().FirstOrDefault();
                //实例化串行端口

                //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 = port;// portName;
                                           //波特率 霍尼威尔扫码枪115200,普通9600
                serialPort.BaudRate = 9600;
                //奇偶校验
                serialPort.Parity = Parity.None;
                //停止位
                serialPort.StopBits = StopBits.One;
                //数据位
                serialPort.DataBits = 8;
                //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 static void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
           
            int nums = serialPort.BytesToRead;
            byte[] receiveBytes = new byte[nums];
            serialPort.Read(receiveBytes, 0, nums);

            StringBuilder sb = new StringBuilder();

            string str = Encoding.ASCII.GetString(receiveBytes).Replace("\r\n", "");
            // 业务处理
            RefreshMaterialCodeStrEvent?.Invoke(str);
                 
            sb.Clear();
        }

        /// <summary>
        /// 发送数据方法
        /// </summary>
        /// <param name="data"></param>
        public static void SendData(string data)
        {
            try
            {
                if (serialPort.IsOpen)
                {
                    // 将需要发送的数据转换成字节数组
                    byte[] sendData = Encoding.ASCII.GetBytes(data);

                    // 向串口写入数据
                    serialPort.Write(sendData, 0, sendData.Length);
                }
                else
                {
                    Console.WriteLine("串口未打开，请先初始化串口并打开连接。");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"发送数据时发生错误：{ex.Message}");
            }
        }

    }
}