using JiShe.CollectBus.Common.Enums;
using JiShe.CollectBus.Common.Extensions;
using JiShe.CollectBus.Common.Models;
using JiShe.CollectBus.Protocol.Contracts.Interfaces;
using JiShe.CollectBus.Protocol.Contracts.Models;
using Microsoft.Extensions.Logging;

namespace JiShe.CollectBus.Protocol.Contracts.Abstracts
{
    public abstract class BaseProtocolPlugin(ILogger<BaseProtocolPlugin> logger) : IProtocolPlugin
    {
        //起始字符
        public const string stx = "68";
        //结束字符
        public const string end = "16";
        //头部字节长度
        public const int hearderLen = 6;
        //消息认证码字段长度
        public const int pWLen = 16;

        public const int tPLen = 6;


        public abstract Task<ProtocolInfo> GetAsync();

        public abstract Task AnalyzeAsync(MessageReceivedEvent messageReceivedEvent, Action<byte[]>? sendAction = null);

        /// <summary>
        /// 登录帧解析
        /// </summary>
        /// <param name="messageReceivedEvent">报文</param>
        /// <param name="sendAction">发送委托</param>
        /// <returns></returns>
        public virtual async Task LoginAsync(MessageReceivedLoginEvent messageReceivedEvent, Action<byte[]>? sendAction = null)
        {
            var hexStringList = messageReceivedEvent.MessageHexString.StringToPairs();
            var aTuple = (Tuple<string, int>)hexStringList.GetAnalyzeValue(CommandChunkEnum.A);
            var seq = (Seq)hexStringList.GetAnalyzeValue(CommandChunkEnum.SEQ);
            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 = aTuple.Item1,
                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 = seq.PRSEQ
                },
                MSA = aTuple.Item2,
                Pn = 0,
                Fn = 1
            };
            var bytes = GetCommandBytes(reqParam);
            if (sendAction != null)
            {
                sendAction(bytes);
            }
        }

        /// <summary>
        /// 心跳帧解析
        /// </summary>
        /// <param name="messageReceivedEvent">报文</param>
        /// <param name="sendAction">发送委托</param>
        /// <returns></returns>
        public virtual async Task HeartbeatAsync(MessageReceivedHeartbeatEvent messageReceivedEvent, Action<byte[]>? sendAction = null)
        {
            var hexStringList = messageReceivedEvent.MessageHexString.StringToPairs();
            var aTuple = (Tuple<string,int>)hexStringList.GetAnalyzeValue(CommandChunkEnum.A);
            var seq = (Seq)hexStringList.GetAnalyzeValue(CommandChunkEnum.SEQ);
            if (seq.TpV == TpV.附加信息域中带时间标签)
            {
                //解析

            }
            if (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 = aTuple.Item1,
                    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 = seq.PRSEQ,
                    },
                    MSA = aTuple.Item2,
                    Pn = 0,
                    Fn = 1
                };
                var bytes = GetCommandBytes(reqParam);
                if (sendAction != null)
                {
                    sendAction(bytes);
                }
            }
        }


        #region 通用解析

        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);
            logger.LogInformation($"回复：{string.Join(" ", cmdStrList)}");
            var bytes = cmdStrList.Select(x => Convert.ToByte(x, 16)).ToArray();
            return bytes;
        }

        /// <summary>
        /// 帧校验和
        /// </summary>
        /// <param name="userData">用户数据区</param>
        /// <returns></returns>
        public 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");
        }

        /// <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>
        /// 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>
        public 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>
        /// 长度 2字节 [用户数据区长度]
        /// </summary>
        /// <returns></returns>
        public List<string> GetLength(int length1)
        {
            var binaryLen = length1.DecToBin();
            var protocolIdentification = Enum.Format(typeof(ProtocolIdentification),
                ProtocolIdentification.本规约使用, "d").PadLeft(2, '0');
            var lenStr = $"{binaryLen}{protocolIdentification}";
            var hexLen = lenStr.BinToHex();
            hexLen = hexLen.PadLeft(4, '0');
            var list = hexLen.StringToPairs();
            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>
        public string GetC(int funCode, PRM pRM, int fcb = 0, FCV fcv = FCV.FCB位无效)
        {
            var cMasterStationFunCodeHex = funCode.DecToBin();
            cMasterStationFunCodeHex = cMasterStationFunCodeHex.ToString().PadLeft(4, '0');
            var strC = $"{(int)DIR.主站下行报文}{(int)pRM}{fcb}{(int)fcv}{cMasterStationFunCodeHex}";
            var hexC = strC.BinToHex().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>
        public List<string> GetAList(string a, int mSA)
        {
            var list = new List<string>();

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

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

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

            return list;
        }

        public List<string> GetLinkUserData(AFN aFN, Seq seq, int pn, int fn, List<string>? dataUnit)
        {
            var aFNValue = ((int)aFN).DecToHex().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>
        public 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}{pRSEQ.DecToBin().PadLeft(4, '0')}";
            var hexSEQ = sEQBin.BinToHex().PadLeft(2, '0');
            return hexSEQ;
        }

        /// <summary>
        /// 信息点标识
        /// </summary>
        /// <param name="pn">计量点</param>
        /// <returns></returns>
        public 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 = "1".PadRight(dA1, '0').BinToHex();//对位信息 第几位 二进制有效位  
            var dA2Hex = dA2.DecToHex();
            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>
        public List<string> GetDT(int fn)
        {
            var dT2 = (fn - 1) / 8;//从零开始 第几组
            var dT1 = fn - dT2 * 8;
            var dT1Hex = "1".PadRight(dT1, '0').BinToHex();//对位信息 第几位 二进制有效位  
            var dT2Hex = dT2.DecToHex();
            return new List<string>() { dT1Hex.PadLeft(2, '0'), dT2Hex.PadLeft(2, '0') };
        }

        /// <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>
        public 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

    }
}