using Microsoft.Extensions.DependencyInjection;
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 GunHelper
    {

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

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

        #endregion 

        /// <summary>
        /// 喷码设备推送
        /// </summary>
        /// <param name="materialCodeStr"></param>
        /// <param name="ip"></param>
        public delegate void PushCode(string code);
        public static event PushCode PushCodeEvent;

    
 
        //初始化串口并启动接收数据
        public  void InstanceSerialPort()
        {
            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 = "COM3";// 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 = 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 = "";
            int bytesToRead = serialPort.BytesToRead;
            byte[] buf = new byte[bytesToRead];
            serialPort.Read(buf, 0x0, bytesToRead);
           
            for (int i = 0x0; i < buf.Length; i++)
            {
                int num = (int)buf[i];
                result =result+num.ToString("X2");
            }
            Console.WriteLine(result);
        }

        /// <summary>
        /// 发送数据方法
        /// OK-校验成功关闭灯光，NG-校验失败闪烁红灯
        /// </summary>
        /// <param name="data"></param>
        public void SendData(string data)
        {
            //try
            //{
            //    if (serialPort.IsOpen)
            //    {

            //        if (data == "NG")
            //        {
            //            byte[] buffer = GetBytesByCommand("CloseRed");
            //            serialPort.Write(buffer, 0x0, 0x4);
            //            byte[] buffer1 = GetBytesByCommand("OpenRed");
            //            serialPort.Write(buffer1, 0x0, 0x4);
            //        }
            //        else if (data == "OK")
            //        {
            //            byte[] buffer = GetBytesByCommand("CloseRed");
            //            serialPort.Write(buffer, 0x0, 0x4);
            //            byte[] buffer1 = GetBytesByCommand("OpenGreen");
            //            serialPort.Write(buffer1, 0x0, 0x4);
            //        }
            //        else if (data == "Exit")
            //        {
            //            byte[] buffer = GetBytesByCommand("CloseRed");
            //            serialPort.Write(buffer, 0x0, 0x4);
            //        }

            //    }
            //    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}");
            //}

        }

        /// <summary>
        /// 条码根据通信协议转换
        /// </summary>
        /// <param name="command"></param>
        /// <returns></returns>
        private byte[] GetBytesByCommand(string barCode)
        {
            byte[] buffer = null;
            //byte[] SOI = new byte[] { 0x7E };
            //byte[] OrderID = new byte[] { 0x02 };
            //byte[] MemoID = new byte[] { 0x00 };
           
            //byte[] Info = EncodeInfoData(barCode);
            //byte[] Length = GetLength(Info.Length);
            //byte CheckSum = GetCheckSum(OrderID,MemoID,Length,Info);
            //byte[] EOI = new byte[] { 0x0D };
            // 起始结束：7E\0D;  SOI	OrderID	MemoID	Length	Info	CheckSum	EOI
          //  buffer = new byte[] { 0x7E, 0x01, 0x00, Length, iNFO, CheckSum, 0x0D };



            return buffer ;

        }

        //private byte[] GetLength(int length)
        //{

        //}

        private byte[] GetCheckSum(byte[] OrderID, byte[] MemoID, byte[] Length, byte[] Info)
        {
            // 合并所有数据部分，除去 SOI 和 EOI
            List<byte> dataList = new List<byte>();
            dataList.AddRange(OrderID);
            dataList.AddRange(MemoID);
            dataList.AddRange(Length);
            dataList.AddRange(Info);

            // 计算数据的总和
            int sum = 0;
            foreach (byte b in dataList)
            {
                sum += b;
            }

            // 取模 65536
            int moduloResult = sum % 65536;

            // 求反并加1
            ushort lCheckSUM = (ushort)((~moduloResult & 0xFFFF) + 1);

            // 转换为字节数组，传输时用4个字节
            byte[] checkSumBytes = new byte[4];
            checkSumBytes[0] = (byte)((lCheckSUM >> 8) & 0xFF); // 高位
            checkSumBytes[1] = (byte)(lCheckSUM & 0xFF);        // 低位
            checkSumBytes[2] = 0; // 额外的两个字节可以填充为0
            checkSumBytes[3] = 0;

            return checkSumBytes;
        }


        public  byte[] EncodeInfoData(string data)
        {
            // 分隔符
            byte separator = 0x1F;

            // 将数据和useFileName转换成字节序列
            byte[] dataBytes = EncodeDataForTransmission(data);
          
            // 组合所有字节序列
            List<byte> encodedBytes = new List<byte>();
            
            encodedBytes.AddRange(dataBytes);
            encodedBytes.Add(separator);
            return encodedBytes.ToArray();
        }


         byte[] EncodeDataForTransmission(string input)
        {
            byte[] encodedBytes = new byte[input.Length * 2]; // 每个字符转换为两个字节

            for (int i = 0; i < input.Length; i++)
            {
                char c = input[i];

                // 将字符转换为ASCII码
                byte asciiValue = (byte)c;

                // 将ASCII码拆分为高4位和低4位
                byte highNibble = (byte)((asciiValue >> 4) & 0xF); // 高4位
                byte lowNibble = (byte)(asciiValue & 0xF);         // 低4位

                // 转换成ASCII码形式
                byte highNibbleAscii = (byte)(highNibble + 0x30); // 转成ASCII码
                byte lowNibbleAscii = (byte)(lowNibble + 0x30);   // 转成ASCII码

                // 存储到结果数组中
                encodedBytes[2 * i] = highNibbleAscii;
                encodedBytes[2 * i + 1] = lowNibbleAscii;
            }

            return encodedBytes;
        }



       
    }


}