using JiShe.CollectBus.Common;
using JiShe.CollectBus.Protocol.Contracts.Abstracts;
using JiShe.CollectBus.Protocol.Contracts.Attributes;
using JiShe.CollectBus.Protocol.Contracts.DependencyInjection;
using JiShe.CollectBus.Protocol.Contracts.Models;
using Microsoft.Extensions.Caching.Distributed;
using TouchSocket.Sockets;

namespace JiShe.CollectBus.Protocol
{
    [ProtocolName("StandardProtocol")]
    public class StandardProtocolPlugin(IDistributedCache cache) : BaseProtocolPlugin(cache), ISingletonDependency
    {
        //起始字符
        private const string stx = "68";
        //结束字符
        private const string end = "16";
        //头部字节长度
        private const int hearderLen = 6;
        //消息认证码字段长度
        private const int pWLen = 16;

        private const int tPLen = 6;

        static object locker = new object();
        static List<int> MSA = new List<int>();
        static Dictionary<string, List<int>> usingMSA = new Dictionary<string, List<int>>();

        static StandardProtocolPlugin()
        {
            for (int i = 1; i <= 127; i++)
            {
                MSA.Add(i);
            }
        }


        public override ProtocolInfo Get()
        {
            return new ProtocolInfo("Standard", "376.1", "TCP","376.1协议","DTS1980");
        }

        public new void Load()
        {
            base.Load();
        }

        public override void Received(ReceivedDataEventArgs e)
        {
            var messageHexString = Convert.ToHexString(e.ByteBlock.Span);
            var cmdResult = AnalysisCmd(messageHexString);
            if (cmdResult == null)
            {
                return;
            }
            AnalysisData(cmdResult);
          
        }

        public override void Send()
        {
            throw new NotImplementedException();
        }

        /// <summary>
        /// Gets the msa.
        /// </summary>
        /// <param name="mark">The mark.</param>
        /// <returns></returns>
        public static int GetMSA(string mark)
        {
            lock (locker)
            {
                if (!usingMSA.Keys.Contains(mark))
                    usingMSA.Add(mark, new List<int>());

                int msa = MSA.Except(usingMSA[mark]).FirstOrDefault();
                //if (msa == 1) msa = 2;//msa=1为自定义指令保留
                usingMSA[mark].Add(msa);

                if (msa == 127)
                    usingMSA[mark].RemoveAll(m => true);

                return msa;
            }
        }

        #region 上行命令

        //68 
        //32 00
        //32 00
        //68
        //C9  1100'1001. 控制域C。
        // D7=1, （终端发送）上行方向。
        // D6=1, 此帧来自启动站。
        // D5=0, (上行方向)要求访问位。表示终端无事件数据等待访问。
        // D4=0, 保留
        // D3~D0=9, 功能码。链路测试

        //20 32  行政区划码
        //90 26  终端地址
        //00 主站地址和组地址标志。终端为单地址。 //3220 09 87 2
        // 终端启动的发送帧的 MSA 应为 0, 其主站响应帧的 MSA 也应为 0.
        //02 应用层功能码。AFN=2, 链路接口检测
        //70 0111'0000. 帧序列域。无时间标签、单帧、需要确认。
        //00 00  信息点。DA1和DA2全为“0”时，表示终端信息点。
        //01 00 信息类。F1, 登录。
        //44  帧尾，包含用户区数据校验和
        //16  帧结束标志

        /// <summary>
        /// 解析上行命令
        /// </summary>
        /// <param name="cmd"></param>
        /// <returns></returns>
        public CommandReulst? AnalysisCmd(string cmd)
        {
            CommandReulst? commandReulst = null;
            var hexStringList = DataConvert.StringToPairs(cmd);

            if (hexStringList.Count < hearderLen)
            {
                return commandReulst;
            }
            //验证起始字符
            if (hexStringList[0] != stx || hexStringList[5] != stx)
            {
                return commandReulst;
            }

            var lenHexStr = $"{hexStringList[2]}{hexStringList[1]}";
            var lenBin = DataConvert.HexToBin(lenHexStr);
            var len = DataConvert.BinToDec(lenBin.Remove(lenBin.Length - 2));
            //验证长度
            if (hexStringList.Count - 2 != hearderLen + len)
                return commandReulst;

            var userDataIndex = hearderLen;
            var c = hexStringList[userDataIndex];//控制域 1字节
            userDataIndex += 1;

            var aHexList = hexStringList.Skip(userDataIndex).Take(5).ToList();//地址域 5字节         
            var a = AnalysisA(aHexList);
            var a3Bin = DataConvert.HexToBin(aHexList[4]).PadLeft(8, '0');
            var mSA = DataConvert.BinToDec(a3Bin.Substring(0, 7));
            userDataIndex += 5;

            var aFN = (AFN)DataConvert.HexToDec(hexStringList[userDataIndex]);//1字节
            userDataIndex += 1;

            var seq = DataConvert.HexToBin(hexStringList[userDataIndex]).PadLeft(8, '0');
            var tpV = (TpV)Convert.ToInt32(seq.Substring(0, 1));
            var fIRFIN = (FIRFIN)Convert.ToInt32(seq.Substring(1, 2));
            var cON = (CON)Convert.ToInt32(seq.Substring(3, 1));
            var prseqBin = seq.Substring(4, 4);
            userDataIndex += 1;

            // (DA2 - 1) * 8 + DA1 = pn           
            var da1Bin = DataConvert.HexToBin(hexStringList[userDataIndex]);
            var da1 = da1Bin == "0" ? 0 : da1Bin.Length;
            userDataIndex += 1;
            var da2 = DataConvert.HexToDec(hexStringList[userDataIndex]);
            userDataIndex += 1;
            var pn = da2 == 0 ? 0 : (da2 - 1) * 8 + da1;

            //(DT2*8)+DT1=fn
            var dt1Bin = DataConvert.HexToBin(hexStringList[userDataIndex]);
            var dt1 = dt1Bin != "0" ? dt1Bin.Length : 0;
            userDataIndex += 1;
            var dt2 = DataConvert.HexToDec(hexStringList[userDataIndex]);
            userDataIndex += 1;
            var fn =  dt2 * 8 + dt1;

            //数据单元
            var datas = hexStringList.Skip(userDataIndex).Take(len + hearderLen - userDataIndex).ToList();

            //EC
            //Tp
            commandReulst = new CommandReulst()
            {
                A = a,
                MSA = mSA,
                AFN = aFN,
                Seq = new Seq()
                {
                    TpV = tpV,
                    FIRFIN = fIRFIN,
                    CON = cON,
                    PRSEQ = DataConvert.BinToDec(prseqBin),
                },
                CmdLength = len,
                Pn = pn,
                Fn = fn,
                HexDatas = datas
            };

            return commandReulst;
        }

        /// <summary>
        /// 解析地址
        /// </summary>
        /// <param name="aHexList"></param>
        /// <returns></returns>
        private string AnalysisA(List<string> aHexList)
        {
            var a1 = aHexList[1] + aHexList[0];
            var a2 = aHexList[3] + aHexList[2];
            var a2Dec = DataConvert.HexToDec(a2);
            var a3 = aHexList[4];
            var a = $"{a1}{a2Dec.ToString().PadLeft(5, '0')}";
            return a;
        }

        /// <summary>
        /// 解析上行命令数据包
        /// </summary>
        /// <param name="commandReulst"></param>
        public void AnalysisData(CommandReulst commandReulst)
        {
            switch (commandReulst.AFN)
            {
                case AFN.确认或否认:
                    //commandReulst.fn
                    //1:全部确认
                    //2:全部否认
                    //3:按数据单元表示确认和否认
                    //4 硬件安全认证错误应答
                    break;
                case AFN.复位:
                    break;
                case AFN.链路接口检测:
                    AnalysisAFN02(commandReulst);
                    break;
                case AFN.中继站命令:
                    break;
                case AFN.设置参数:
                    break;
                case AFN.控制命令:
                    break;
                case AFN.身份认证及密钥协商:
                    break;
                case AFN.备用:
                    break;
                case AFN.请求被级联终端主动上报:
                    break;
                case AFN.请求终端配置:
                    break;
                case AFN.查询参数:
                    break;
                case AFN.请求任务数据:
                    break;
                case AFN.请求实时数据:
                    break;
                case AFN.请求历史数据:
                    break;
                case AFN.请求事件数据:
                    break;
                case AFN.文件传输:
                    break;
                case AFN.数据转发:
                    break;
                default:
                    break;
            }
        }

        //终端启动发送帧的MSA应为零，其主站响应帧的MSA也应为零
        public void AnalysisAFN02(CommandReulst commandReulst)
        {
            if (commandReulst.Fn == 1) //登录
            {
                Console.WriteLine($"{commandReulst.A},登录:{DateTime.Now}");
                var reqParam = new ReqParameter2()
                {
                    AFN = AFN.确认或否认,
                    FunCode = (int)CFromStationFunCode.链路数据,
                    PRM = PRM.从动站报文,
                    A = commandReulst.A,
                    Seq = new Seq()
                    {
                        TpV = TpV.附加信息域中无时间标签,
                        FIRFIN = FIRFIN.单帧,
                        CON = CON.不需要对该帧进行确认,
                        PRSEQ = commandReulst.Seq.PRSEQ,
                    },
                    MSA = commandReulst.MSA,
                    Pn = 0,
                    Fn = 1
                };
                commandReulst.ReplyBytes = GetCommandBytes(reqParam);
            }
            else if (commandReulst.Fn == 2)//退出登录
            {
                Console.WriteLine($"{commandReulst.A},退出登录:{DateTime.Now}");
            }
            else if (commandReulst.Fn == 3)//心跳
            {
                Console.WriteLine($"{commandReulst.A},心跳:{DateTime.Now}");
                AnalysisHeartbeat(commandReulst);
            }
        }

        public void AnalysisHeartbeat(CommandReulst commandReulst)
        {
            if (commandReulst.Seq.TpV == TpV.附加信息域中带时间标签)
            {
                //解析

            }
            if (commandReulst.Seq.CON == CON.需要对该帧进行确认)
            {
                var reqParam = new ReqParameter2()
                {
                    AFN = AFN.确认或否认,
                    FunCode = (int)CFromStationFunCode.链路数据,
                    PRM = PRM.从动站报文,
                    A = commandReulst.A,
                    Seq = new Seq()
                    {
                        TpV = TpV.附加信息域中无时间标签,
                        FIRFIN = FIRFIN.单帧,
                        CON = CON.不需要对该帧进行确认,
                        PRSEQ = commandReulst.Seq.PRSEQ,
                    },
                    MSA = commandReulst.MSA,
                    Pn = 0,
                    Fn = 1
                };
                commandReulst.ReplyBytes = GetCommandBytes(reqParam);
            }
        }

        /// <summary>
        /// 解析时间标签
        /// </summary>
        /// <param name="hexDatas"></param>
        private void AnalysisTp(List<string> hexDatas)
        {
            var pFC = DataConvert.HexToDec(hexDatas[0]);//启动帧帧序号计数器
            var seconds = Convert.ToInt32(hexDatas[1]); // 获取当前秒数
            var minutes = Convert.ToInt32(hexDatas[2]); // 获取当前分钟数
            var hours = Convert.ToInt32(hexDatas[3]); // 获取当前小时数
            var day = Convert.ToInt32(hexDatas[4]); // 获取当前日期的日数
            var delayTime = DataConvert.HexToDec(hexDatas[5]);//延迟时间 min
        }

        /// <summary>
        /// 解析电表档案
        /// </summary>
        /// <param name="hexDatas"></param>
        /// <returns></returns>
        public List<MeterParameter> AnalysisAFN04F10DataUnit(List<string> hexDatas)
        {
            var meterList = new List<MeterParameter>();
            var count = DataConvert.HexToDec($"{hexDatas[1]}{hexDatas[0]}");
            //if (2 + count * 27 != hexDatas.Count - pWLen - tPLen - 2)
            //    return;
            var index = 2;//数量
            for (int i = 1; i <= count; i++)
            {
                var meterNumber = DataConvert.HexToDec($"{hexDatas[index + 1]}{hexDatas[index]}");
                index += 2;

                var pn = DataConvert.HexToDec($"{hexDatas[index + 1]}{hexDatas[index]}");
                index += 2;

                var baudRateAndPortBin = DataConvert.HexToBin(hexDatas[index]).PadLeft(8, '0');
                var baudRate = DataConvert.BinToDec(baudRateAndPortBin.Substring(0, 3));
                var port = DataConvert.BinToDec(baudRateAndPortBin.Substring(3, 5));
                index += 1;

                var protocolType = (CommunicationProtocolType)DataConvert.HexToDec(hexDatas[index]);
                index += 1;

                var addressHexList = hexDatas.Skip(index).Take(6).ToList();
                addressHexList.Reverse();
                var address = string.Join("", addressHexList);
                index += 6;

                var pwdHexList = hexDatas.Skip(index).Take(6).ToList();
                pwdHexList.Reverse();
                var password = string.Join("", pwdHexList.Take(3).ToList());
                index += 6;

                var rateNumberBin = DataConvert.HexToBin(hexDatas[index]).PadLeft(8, '0');
                var rateNumber = DataConvert.BinToDec(rateNumberBin.Substring(4));
                index += 1;

                var intBitAndDecBitNumberBin = DataConvert.HexToBin(hexDatas[index]).PadLeft(8, '0');
                var intBitNumber = DataConvert.BinToDec(intBitAndDecBitNumberBin.Substring(4, 2)) + 4;
                var decBitNumber = DataConvert.BinToDec(intBitAndDecBitNumberBin.Substring(6, 2)) + 1;
                index += 1;

                // hexDatas.GetRange()
                var collectorAddressHexList = hexDatas.Skip(index).Take(6).ToList();
                collectorAddressHexList.Reverse();
                var collectorAddress = string.Join("", collectorAddressHexList);
                index += 6;

                var userClassNumberBin = DataConvert.HexToBin(hexDatas[index]).PadLeft(8, '0');
                var userClass = DataConvert.BinToDec(userClassNumberBin.Substring(0, 4));
                var userSubClass = DataConvert.BinToDec(userClassNumberBin.Substring(4, 4));
                index += 1;

                meterList.Add(new MeterParameter()
                {
                    Pn = pn,
                    BaudRate = baudRate,
                    Port = port,
                    ProtocolType = protocolType,
                    Address = address,
                    Password = password,
                    RateNumber = rateNumber,
                    IntegerBitNumber = intBitNumber,
                    DecimalBitNumber = decBitNumber,
                    CollectorAddress = collectorAddress,
                    UserCategoryNumber = userClass,
                    UserSubclassNumber = userSubClass,
                });
            }
            return meterList;
        }

        /// <summary>
        /// 解析实时数据F129
        /// </summary>
        /// <param name="hexDatas"></param>
        private void AnalysisAFN0CF129DataUnit(List<string> hexDatas)
        {
            var minutes = Convert.ToInt32(hexDatas[0]); // 获取当前分钟数
            var hours = Convert.ToInt32(hexDatas[1]); // 获取当前小时数
            var day = Convert.ToInt32(hexDatas[2]); // 获取当前日期的日数
            var month = Convert.ToInt32(hexDatas[3]); // 获取当前月份
            var year = Convert.ToInt32(hexDatas[4]); // 获取当前日期的年份

            var rateNumber = Convert.ToInt32(hexDatas[5]);
            var kwhTotal = hexDatas.Skip(5).Take(5).ToList();
            var kwhList = new List<decimal>();
            var index = 11;
            for (int i = 0; i < rateNumber; i++)
            {
                var kwhHexList = hexDatas.Skip(11).Take(5).ToList();
                kwhHexList.Reverse();
                var integerStr = $"{kwhHexList.Take(0)}{kwhHexList.Take(1)}{kwhHexList.Take(2)}";
                var decimalValStr = $"{kwhHexList[3]}{kwhHexList[4]}";
                var val = decimal.Parse($"{integerStr}{decimalValStr}");
                kwhList.Add(val);
                index += 5;
            }
        }

        #endregion

        #region 下行命令

        /// <summary>
        /// 设置电表档案
        /// </summary>
        /// <param name="a">集中器地址</param>
        /// <param name="meterParameters"></param>
        public void GetSetAmmeterParameter(string a, List<MeterParameter> meterParameters)
        {
            var dataUnit = GetAFN04F10DataUnit(meterParameters);
            var bytes = GetCommandBytes(new ReqParameter2()
            {
                AFN = AFN.设置参数,
                FunCode = (int)CMasterStationFunCode.请求1级数据,
                A = a,
                Seq = new Seq()
                {
                    TpV = TpV.附加信息域中无时间标签,
                    FIRFIN = FIRFIN.单帧,
                    CON = CON.需要对该帧进行确认,
                    PRSEQ = 10,
                },
                MSA = GetMSA(a),
                Pn = 0,
                Fn = 10
            }, dataUnit);
        }

        /// <summary>
        /// 查询电表档案
        /// </summary>
        /// <param name="a"></param>
        /// <param name="meterNumberList">对象序号</param>
        public void GetAmmeterParameter(string a, List<int> meterNumberList)
        {
            var dataUnit = new List<string>();
            var countHex = DataConvert.DecToHex(meterNumberList.Count()).PadLeft(4, '0');
            var countHexPairs = DataConvert.StringToPairs(countHex);
            countHexPairs.Reverse();
            dataUnit.AddRange(countHexPairs);

            foreach (var number in meterNumberList)
            {
                var numberHex = DataConvert.DecToHex(number).PadLeft(4, '0');
                var numberHexPairs = DataConvert.StringToPairs(numberHex);
                numberHexPairs.Reverse();
                dataUnit.AddRange(numberHexPairs);
            }
            var bytes = GetCommandBytes(new ReqParameter2()
            {
                AFN = AFN.查询参数,
                FunCode = (int)CMasterStationFunCode.请求2级数据,
                A = a,
                Seq = new Seq()
                {
                    TpV = TpV.附加信息域中无时间标签,
                    FIRFIN = FIRFIN.单帧,
                    CON = CON.不需要对该帧进行确认,
                    PRSEQ = 0,
                },
                MSA = GetMSA(a),
                Pn = 0,
                Fn = 10
            }, dataUnit);
        }

        /// <summary>
        /// 电表抄读
        /// </summary>
        /// <param name="a"></param>
        /// <param name="pn"></param>
        public void GetAmmterReading(string a,int pn)
        {
          var bytes =  GetCommandBytes(new ReqParameter2()
            {
                AFN = AFN.请求实时数据,
                FunCode = (int)CMasterStationFunCode.请求2级数据,
                A = a,
                Seq = new Seq()
                {
                    TpV = TpV.附加信息域中无时间标签,
                    FIRFIN = FIRFIN.单帧,
                    CON = CON.不需要对该帧进行确认,
                    PRSEQ = 2,
                },
                MSA = GetMSA(a),
                Pn = pn,
                Fn = 129
            });
        }
        
        /// <summary>
        /// 组装电表阀控
        /// </summary>
        /// <param name="address">电表地址</param>
        /// <param name="specialnocode">特殊控制码</param>
        /// <param name="password">密码</param>
        /// <param name="state">是否为开阀</param>
        /// <returns></returns>
        public List<string> AmmeterValveControl(string address, string specialnocode, string password, bool state, string modelCode = "")
        {
            address = address.Trim().TrimStart('0');
            if (address.Length < 12) address = address.PadLeft(12, '0');
            string Code = string.Empty;

            if (state)
            {
                if (string.IsNullOrEmpty(specialnocode))
                    Code = "1B";
                else
                    Code = specialnocode == "1B" || specialnocode == "1C" ? specialnocode : "1C";
            }
            else
                Code = "1A";//跳闸

            if (specialnocode == "1W")
            {
                if (state)
                    Code = "1A";
                else
                    Code = "1C";
            }

            var pwdLevel = "02";
            if (modelCode == "HL_DTSU2625" || modelCode == "DDZY9866")
                pwdLevel = "04";
            else if (modelCode == "DDS2705")
                pwdLevel = "03";

            if (!string.IsNullOrWhiteSpace(password) && password.Contains("|"))
            {
                var sp = password.Split('|');
                pwdLevel = sp[1];
                password = sp[0];
            }

            string strDate = DataConvert.StrAddSpan(DateTime.Now.AddYears(3).ToString("000012ddMMyy"));
            if (specialnocode == "1D" || modelCode == "SZBD_DDZY1225")
                strDate = "FF FF FF FF FF FF";
            string strP = DataConvert.StrReverseOrder(DataConvert.StrAddSpan(password));
            string strSJY = " " + pwdLevel + " " + strP + " 01 00 00 00 " + Code + " 00 " + strDate;
            string strLen = (strSJY.Replace(" ", "").Length / 2).ToString("X2");
            string strReturn = "68 " + DataConvert.StrReverseOrder(DataConvert.StrAddSpan(address)) + " 68 1C " + strLen + " " + DataConvert.StrAddHex33(strSJY) + " ";
            string strSum = strReturn.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries).Select(i => Convert.ToInt32(i, 16)).Sum().ToString("X");
            strReturn += strSum.Substring(strSum.Length - 2) + " 16";

            return strReturn.Split(' ').ToList();
        }

        /// <summary>
        /// 帧命令组装
        /// </summary>
        /// <param name="reqParameter">请求参数</param>
        /// <param name="dataUnit">数据单元</param>
        /// <returns></returns>
        public byte[] GetCommandBytes(ReqParameter reqParameter, List<string>? dataUnit = null)
        {
            var cmdStrList = new List<string>();
            var userDatas = GetUserData(reqParameter, dataUnit);
            var hearders = GetHeaders(userDatas.Count);
            var cs = GetCS(userDatas);
            cmdStrList.AddRange(hearders);
            cmdStrList.AddRange(userDatas);
            cmdStrList.Add(cs);
            cmdStrList.Add(end);
            Console.WriteLine($"回复：{string.Join(" ", cmdStrList)}");
            var bytes = cmdStrList.Select(x => Convert.ToByte(x, 16)).ToArray();
            return bytes;
        }


        /// <summary>
        /// 固定长度的报文头 起始字符+长度+长度+起始字符
        /// </summary>
        /// <param name="length"></param>
        /// <returns></returns>
        private List<string> GetHeaders(int length)
        {
            var headers = new List<string>();
            headers.Add(stx);
            var l = GetLength(length);
            headers.AddRange(l);
            headers.AddRange(l);
            headers.Add(stx);
            return headers;
        }

        /// <summary>
        /// 用户数据区 
        /// </summary>
        /// <param name="reqParameter"></param>
        /// <returns></returns>
        public List<string> GetUserData(ReqParameter reqParameter, List<string>? dataUnit)
        {
            var c = GetC(reqParameter.FunCode, reqParameter.PRM);
            var a = GetAList(reqParameter.A, reqParameter.MSA);

            var linkUserData = GetLinkUserData(reqParameter.AFN, reqParameter.Seq,
                ((ReqParameter2)reqParameter).Pn, ((ReqParameter2)reqParameter).Fn, dataUnit);

            var list = new List<string>() { c };
            list.AddRange(a);
            list.AddRange(linkUserData);
            return list;
        }


        /// <summary>
        /// 长度 2字节 [用户数据区长度]
        /// </summary>
        /// <returns></returns>
        private List<string> GetLength(int length1)
        {
            var binaryLen = DataConvert.DecToBin(length1);
            var protocolIdentification = Enum.Format(typeof(ProtocolIdentification),
                ProtocolIdentification.本规约使用, "d").PadLeft(2, '0');
            var lenStr = $"{binaryLen}{protocolIdentification}";
            var hexLen = DataConvert.BinToHex(lenStr);
            hexLen = hexLen.PadLeft(4, '0');
            var list = DataConvert.StringToPairs(hexLen);
            list.Reverse();
            return list;
        }

        /// <summary>
        /// 控制域
        /// </summary>
        /// <param name="funCode">功能码</param>
        /// <param name="fcb"></param>
        /// <param name="fcv"></param>
        /// <returns></returns>
        private string GetC(int funCode, PRM pRM, int fcb = 0, FCV fcv = FCV.FCB位无效)
        {
            var cMasterStationFunCodeHex = DataConvert.DecToBin(funCode);
            cMasterStationFunCodeHex = cMasterStationFunCodeHex.ToString().PadLeft(4, '0');
            var strC = $"{(int)DIR.主站下行报文}{(int)pRM}{fcb}{(int)fcv}{cMasterStationFunCodeHex}";
            var hexC = DataConvert.BinToHex(strC).PadLeft(2, '0');
            return hexC;
        }

        /// <summary>
        /// 地址域  3220 09872
        /// </summary>
        /// <param name="a1">行政区划码 BCD码 3220=2032</param>
        /// <param name="a2">逻辑地址 BIN 09872=2690=>9026</param>
        /// <param name="a3">主站地址 BIN 0~127</param>
        /// <returns></returns>
        private List<string> GetAList(string a, int mSA)
        {
            var list = new List<string>();

            var a1 = a.Substring(0, 4);
            var a1Pairs = DataConvert.StringToPairs(a1);
            a1Pairs.Reverse();
            list.AddRange(a1Pairs);

            var a2 = Convert.ToInt32(a.Substring(4));
            var decA2 = DataConvert.DecToHex(a2);
            var a2Pairs = DataConvert.StringToPairs(decA2.PadLeft(4, '0'));
            a2Pairs.Reverse();
            list.AddRange(a2Pairs);

            //TODO:主站地址和组地址标志
            var a3Bin = $"{DataConvert.DecToBin(mSA).PadLeft(7, '0')}0";
            list.Add(DataConvert.BinToHex(a3Bin).PadLeft(2,'0'));

            return list;
        }

        #region 链路用户数据

        private List<string> GetLinkUserData(AFN aFN, Seq seq, int pn, int fn, List<string>? dataUnit)
        {
            var aFNValue = DataConvert.DecToHex((int)aFN).PadLeft(2, '0');
            var sEQ = GetSEQ(seq.TpV, seq.FIRFIN, seq.CON, seq.PRSEQ);
            var dA = GetDA(pn);
            var dT = GetDT(fn);
            var list = new List<string>() { aFNValue, sEQ };
            list.AddRange(dA);
            list.AddRange(dT);

            if (dataUnit != null)
            {
                list.AddRange(dataUnit);
            }
            //list.AddRange(GetDataUnit(aFN,seq));

            if (seq.TpV == TpV.附加信息域中带时间标签)
                list.AddRange(GetTp("00"));

            return list;
        }


        /// <summary>
        /// 帧序列域
        /// </summary>
        /// <param name="tpV"></param>
        /// <param name="fIRFIN"></param>
        /// <param name="cON"></param>
        /// <returns></returns>
        private string GetSEQ(TpV tpV, FIRFIN fIRFIN, CON cON, int pRSEQ)
        {
            var tpVValue = Enum.Format(typeof(TpV),
                tpV, "d");
            var fIRFINValue = Enum.Format(typeof(FIRFIN),
                fIRFIN, "d");
            var cONValue = (int)cON;
            var sEQBin = $"{tpVValue}{fIRFINValue}{cONValue}{DataConvert.DecToBin(pRSEQ).PadLeft(4, '0')}";
            var hexSEQ = DataConvert.BinToHex(sEQBin).PadLeft(2, '0');
            return hexSEQ;
        }

        /// <summary>
        /// 信息点标识
        /// </summary>
        /// <param name="pn">计量点</param>
        /// <returns></returns>
        private List<string> GetDA(int pn)
        {
            if (pn == 0)
                return new List<string>() { "00", "00" };
            var dA2 = (pn - 1) / 8 + 1;//信息点组从1开始 第几组
            var dA1 = pn - (dA2 - 1) * 8;//pn % 8           
            var dA1Hex = DataConvert.BinToHex("1".PadRight(dA1, '0'));//对位信息 第几位 二进制有效位  
            var dA2Hex = DataConvert.DecToHex(dA2);
            return new List<string>() { dA1Hex.PadLeft(2, '0'), dA2Hex.PadLeft(2, '0') };

        }

        /// <summary>
        /// 数据单元标识
        /// </summary>
        /// <param name="fn"></param>
        /// <returns></returns>
        private List<string> GetDT(int fn)
        {
            var dT2 = (fn - 1) / 8;//从零开始 第几组
            var dT1 = fn - dT2 * 8;
            var dT1Hex = DataConvert.BinToHex("1".PadRight(dT1, '0'));//对位信息 第几位 二进制有效位  
            var dT2Hex = DataConvert.DecToHex(dT2);
            return new List<string>() { dT1Hex.PadLeft(2, '0'), dT2Hex.PadLeft(2, '0') };
        }

        private List<string> GetDataUnit(AFN aFN, Seq seq)
        {
            var datas = new List<string>();
            switch (aFN)
            {
                case AFN.确认或否认:
                    break;
                case AFN.复位:
                    break;
                case AFN.链路接口检测:
                    break;
                case AFN.中继站命令:
                    break;
                case AFN.设置参数:
                    break;
                case AFN.控制命令:
                    break;
                case AFN.身份认证及密钥协商:
                    break;
                case AFN.备用:
                    break;
                case AFN.请求被级联终端主动上报:
                    break;
                case AFN.请求终端配置:
                    break;
                case AFN.查询参数:
                    break;
                case AFN.请求任务数据:
                    break;
                case AFN.请求实时数据:
                    break;
                case AFN.请求历史数据:
                    break;
                case AFN.请求事件数据:
                    break;
                case AFN.文件传输:
                    break;
                case AFN.数据转发:
                    break;
                default:
                    break;
            }
            if (seq.TpV == TpV.附加信息域中带时间标签)
                datas.AddRange(GetTp("00"));
            return datas;
        }

        private void GetAFN00DataUnit(Seq seq)
        {
            //EC+Tp

        }

        /// <summary>
        /// 终端电能表配置参数
        /// </summary>
        /// <param name="meterParameters"></param>
        /// <returns></returns>
        public List<string> GetAFN04F10DataUnit(List<MeterParameter> meterParameters)
        {
            var hexDatas = new List<string>();

            var countHex = DataConvert.DecToHex(meterParameters.Count()).PadLeft(4, '0');
            hexDatas.Add(countHex);

            //TODO 优化代码：目标数据入参，返回类型为出参
            for (int i = 0; i <= meterParameters.Count - 1; i++)
            {
                var meter = meterParameters[i];

                var indexHex = DataConvert.DecToHex(i + 1).PadLeft(4, '0');
                hexDatas.Add(indexHex);

                var pnHex = DataConvert.DecToHex(meter.Pn).PadLeft(4, '0');
                hexDatas.Add(pnHex);

                var baudRateBin = DataConvert.DecToBin(meter.BaudRate).PadLeft(3, '0');
                var portBin = DataConvert.DecToBin(meter.Port).PadLeft(5, '0');
                var baudRateAndPortHex = DataConvert.BinToHex($"{baudRateBin}{portBin}").PadLeft(2, '0');
                hexDatas.Add(baudRateAndPortHex);

                var protocolTypeHex = DataConvert.DecToHex((int)meter.ProtocolType).PadLeft(2, '0');
                hexDatas.Add(protocolTypeHex);

                hexDatas.Add(meter.Address);

                hexDatas.Add(meter.Password.PadLeft(12, '0'));

                var rateNumberBin = $"0000{DataConvert.DecToBin(meter.RateNumber).PadLeft(4, '0')}";
                var rateNumberHex = DataConvert.BinToHex(rateNumberBin).PadLeft(2, '0');
                hexDatas.Add(rateNumberHex);

                var intBitNumberBin = DataConvert.DecToBin(meter.IntegerBitNumber - 4).PadLeft(2, '0');
                var decBitNumberBin = DataConvert.DecToBin(meter.DecimalBitNumber - 1).PadLeft(2, '0');
                var intAndDecBitNumberBin = $"0000{intBitNumberBin}{decBitNumberBin}";
                var intAndDecBitNumberHex = DataConvert.BinToHex(intAndDecBitNumberBin).PadLeft(2, '0');
                hexDatas.Add(intAndDecBitNumberHex);

                hexDatas.Add(meter.CollectorAddress.PadLeft(12, '0'));

                var userCategoryNumberBin = DataConvert.DecToBin(meter.UserCategoryNumber).PadLeft(4, '0');
                var userSubclassNumberBin = DataConvert.DecToBin(meter.UserSubclassNumber).PadLeft(4, '0');
                var userNumberHex = DataConvert.BinToHex($"{userCategoryNumberBin}{userSubclassNumberBin}").PadLeft(2, '0');
                hexDatas.Add(userNumberHex);
            }

            //高位在前，低位在后
            var datas = new List<string>();
            foreach (var hexData in hexDatas)
            {
                if (hexData.Length == 2)
                    datas.Add(hexData);
                else
                {
                    var lst = DataConvert.StringToPairs(hexData);
                    lst.Reverse();
                    datas.AddRange(lst);
                }
            }
            datas.AddRange(GetPW());
            return datas;
        }

        /// <summary>
        /// 透明转发
        /// </summary>
        /// <param name="port">终端通信端口 1~31</param>
        /// <param name="baudRate">0~7 对应300,600,1200,2400,4800,7200,9600,19200</param>
        /// <param name="stopBit"></param>
        /// <param name="parity"></param>
        /// <param name="dataBit"></param>
        /// <returns></returns>
        public List<string> GetAFN1001DataUnit(int port, BaudRate baudRate, StopBit stopBit, Parity parity, DataBit dataBit,
            int waitContentTimeout, int waitByteTimeout, List<string> datas)
        {
            var dataUnit = new List<string>();

            var portHex = DataConvert.DecToHex(port).PadLeft(2, '0');
            dataUnit.Add(portHex);

            var baudRateBin = DataConvert.DecToBin((int)baudRate).PadLeft(3, '0');
            var stopBitBin = DataConvert.DecToBin((int)stopBit);
            var parityBin = parity != Parity.None ? $"1{DataConvert.DecToBin((int)parity)}" : $"0{DataConvert.DecToBin((int)parity)}";
            var dataBitBin = DataConvert.DecToBin((int)dataBit).PadLeft(2, '0');
            var controlHex = DataConvert.BinToHex($"{baudRateBin}{stopBitBin}{parityBin}{dataBitBin}").PadLeft(2, '0'); ;
            dataUnit.Add(controlHex);

            var waitContentTimeoutBin = $"1{DataConvert.DecToBin(waitContentTimeout).PadLeft(7, '0')}";
            var waitContentTimeoutHex = DataConvert.BinToHex(waitContentTimeoutBin).PadLeft(2, '0');
            var waitByteTimeoutHex = DataConvert.DecToHex(waitByteTimeout).PadLeft(2, '0');

            dataUnit.Add(waitContentTimeoutHex);
            dataUnit.Add(waitByteTimeoutHex);

            var countHex = DataConvert.DecToHex(datas.Count).PadLeft(4, '0');
            var countHexPairs = DataConvert.StringToPairs(countHex);
            countHexPairs.Reverse();
            dataUnit.AddRange(countHexPairs);

            dataUnit.AddRange(datas);

            return dataUnit;
        }

        //TODO  AUX=消息认证码字段（PW,16个字节）+时间标签
        private List<string> GetPW()
        {
            var str = "00";
            var pWList = Enumerable.Repeat(str, pWLen).ToList();
            return pWList;
        }

        /// <summary>
        /// 时间标签
        /// </summary>
        /// <param name="pFC">启动帧帧序号计数器PFC 1字节</param>
        /// <param name="delayTime">允许发送传输延时时间 min 1字节</param>
        /// <returns></returns>
        private List<string> GetTp(string pFC = "00", int delayTime = 0)
        {

            var now = DateTime.Now; // 获取当前时间
            var seconds = now.Second.ToString().PadLeft(2, '0'); // 获取当前秒数
            var minutes = now.Minute.ToString().PadLeft(2, '0'); // 获取当前分钟数
            var hours = now.Hour.ToString().PadLeft(2, '0'); // 获取当前小时数
            var day = now.Day.ToString().PadLeft(2, '0'); // 获取当前日期的日数           
            return new List<string>() { pFC, seconds, minutes, hours, day, delayTime.ToString().PadLeft(2, '0') };
        }

        #endregion

        /// <summary>
        /// 帧校验和
        /// </summary>
        /// <param name="userData">用户数据区</param>
        /// <returns></returns>
        private string GetCS(List<string> userData)
        {
            byte sum = 0;
            foreach (var d in userData)
            {
                var b = Convert.ToByte(d, 16);
                sum += b;
            }
            return sum.ToString("X2");
        }

        #endregion

      
    }
}