using DefaultEdit.Core;
using DefaultEdit.Log4xml;
using Sharp7;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Prism.Mvvm;
using TouchSocket.Sockets;
using System.Xml;
using NextTreatMesDemo.Utils;
using System.Data;

namespace DefaultEdit.Communication
{
    public class S7PlcCommunicate : BindableBase
    {

        private  S7Client client = new S7Client();

        private bool _IsConnected=false;
        private string IP;

        public S7Client Client { get => client; set => client = value; }
        public bool IsConnected { get => _IsConnected; set { SetProperty(ref _IsConnected, value); } }

      

        public event Action<string> ConnectedEvent;
        public event Action<string> DisconnectedEvent;
        public event Action<string> ReceivedEvent;
        public event Action<string> SendEvent;
        public S7PlcCommunicate(string ip)
        {
            IP = ip;

        }

        public async Task OpenPlc()
        {

            var res = Client.ConnectTo(IP, 0, 1);//连接PLC的IP地址
            if ( res == 0 )
            {
                ConnectedEvent += S7PlcCommunicate_ConnectedEvent;
                DisconnectedEvent += S7PlcCommunicate_DisconnectedEvent;
                ReceivedEvent += S7PlcCommunicate_ReceivedEvent;
                IsConnected = true;
                LogHelper.Info($"Plc {IP}:连接成功");
            }
            else
            {

                IsConnected = false;
                LogHelper.Info($"Plc{IP}:连接失败");
            }
        }

        public async Task ReconnectedPlc()
        {

            while ( !Client.Connected )
            {
                try
                {
                    var res = Client.ConnectTo(IP, 0, 1);//连接PLC的IP地址
                    if ( res == 0 )
                    {
                        LogHelper.Info($"Plc {IP}:重连成功");
                        break;
                    }
                    else
                    {
                        LogHelper.Info($"Plc {IP}:重连失败");
                    }

                }
                catch ( Exception ex )
                {

                    LogHelper.Error("重连plc出错" + ex.Message);
                }
                Thread.Sleep(200);
            }
            IsConnected = true;
        }

      
        public void StopPlc()
        {
            Client.Disconnect();
        }
        private void S7PlcCommunicate_ReceivedEvent(string arg2)
        {

        }

        private void S7PlcCommunicate_DisconnectedEvent(string arg2)
        {
            IsConnected = false;
            ReconnectedPlc();
        }

        private void S7PlcCommunicate_ConnectedEvent(string arg2)
        {
            LogHelper.Info("PLC已连接");
        }

        public bool ReadBool(int ReadONDBNumber, int ReadStart,int bitStart)
        {
            try
            {
                if ( client.Connected )
                {
                    
                    byte[]buffs=new byte[1];
                    Client.DBRead(ReadONDBNumber, ReadStart, 1, buffs);
                    return buffs.GetBitAt(0, bitStart);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取bool异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
           
            throw new InvalidOperationException‌("PLC未连接");

        }

        public byte[] ReadByte(int ReadONDBNumber, int ReadStart, int byteSize) 
        {
            try
            {
                if ( client.Connected )
                {

                    byte[]buffs=new byte[byteSize];
                    Client.DBRead(ReadONDBNumber, ReadStart, byteSize, buffs);
                    return buffs;
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取bool异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");


        }

       

        public bool[] ReadBools(int ReadONDBNumber, int ReadStart,int bitStart,int bitSize) 
        {

            try
            {
                if ( client.Connected )
                {
                    int bytesToRead = CalculateBytesToRead(ReadStart, bitStart, bitSize); // 返回3
                    byte[]buffs=new byte[bytesToRead];
                    Client.DBRead(ReadONDBNumber, ReadStart, bytesToRead, buffs);
                    return ParseBoolArray(buffs, bitStart, bitSize);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取bool数组异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");
        }
        /// <summary>
        /// 两位
        /// </summary>
        /// <param name="ReadONDBNumber"></param>
        /// <param name="ReadStart"></param>
        /// <returns></returns>
        /// <exception cref="TimeoutException‌"></exception>
        /// <exception cref="InvalidOperationException‌"></exception>
        public short Readshort(int ReadONDBNumber, int ReadStart)
        {
            try
            {
                if ( client.Connected )
                {
                  
                    byte[]buffs=new byte[2];
                    Client.DBRead(ReadONDBNumber, ReadStart, 2, buffs);
                    return buffs.GetIntAt(0);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取Ushort异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");

        }

        /// <summary>
        /// 四位
        /// </summary>
        /// <param name="ReadONDBNumber"></param>
        /// <param name="ReadStart"></param>
        /// <returns></returns>
        /// <exception cref="TimeoutException‌"></exception>
        /// <exception cref="InvalidOperationException‌"></exception>
        public int ReadInt(int ReadONDBNumber, int ReadStart)
        {
            try
            {
                if ( client.Connected )
                {

                    byte[]buffs=new byte[4];
                    Client.DBRead(ReadONDBNumber, ReadStart, 4, buffs);
                    return buffs.GetDIntAt(0);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取Ushort异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");

        }

        public float Readfloat(int ReadONDBNumber, int ReadStart)
        {
            try
            {
                if ( client.Connected )
                {

                    byte[]buffs=new byte[4];
                    Client.DBRead(ReadONDBNumber, ReadStart, 4, buffs);
                    return buffs.GetRealAt(0);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取Float异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");

        }

        public TimeSpan ReadTime(int ReadONDBNumber, int ReadStart)
        {
            try
            {
                if ( client.Connected )
                {

                    byte[]buffs=new byte[4];
                    Client.DBRead(ReadONDBNumber, ReadStart, 4, buffs);
                    return buffs.GetS7TimespanAt(0);
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取Float异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }

            throw new InvalidOperationException‌("PLC未连接");

        }

        public string ReadString(int ReadONDBNumber, int ReadStart, int ReadSize = 1)
        {
            try
            {
                if ( client.Connected )
                {
                  
                    byte []buffs = new byte[ReadSize];
                    //读取数据
                    Client.DBRead(ReadONDBNumber, ReadStart, ReadSize, buffs);
                    byte[] buffsT = new byte[ buffs[ 1 ] ];
                    Array.Copy(buffs, 2, buffsT, 0, buffs[ 1 ]);
                    string str=(Encoding.ASCII.GetString(buffsT)).Trim().TrimEnd('\0') ;
                    return str;
                }
            }
            catch ( Exception e )
            {
                LogHelper.Error("plc读取String异常" + e.Message);
            }
           
            return null;
        }
        public void WriteBool(int WriteONDBNumber, int WriteStart,int bitStart, bool value)
        {
            try
            {
                if ( client.Connected )
                {
                   
                    byte[] res = new byte[1];
                    client.DBRead(WriteONDBNumber, WriteStart, 1, res);
                    res.SetBitAt(0, bitStart, value);
                    client.DBWrite(WriteONDBNumber, WriteStart, 1, res);
                }
            }
            catch ( Exception e )
            {
              
                LogHelper.Error("plc写入bool异常" + e.Message);
            }

        }
        public void Writeshort(int WriteONDBNumber, int WriteStart, short value)
        {
            try
            {
                if ( client.Connected )
                {
                   
                    byte[] res = new byte[2];
                    res.SetIntAt(0, value);
                    client.DBWrite(WriteONDBNumber, WriteStart, 2, res);
                }     
            }
            catch ( Exception e )
            {
               
                LogHelper.Error("plc写入Ushort异常" + e.Message);
            }
           
        }

        public void Writefloat(int WriteONDBNumber, int WriteStart, float value)
        {
            try
            {
                if ( client.Connected )
                {

                    byte[] res = new byte[4];
                    res.SetRealAt(0, value);
                    client.DBWrite(WriteONDBNumber, WriteStart, 4, res);
                }
            }
            catch ( Exception e )
            {

                LogHelper.Error("plc写入Float异常" + e.Message);
            }

        }


        public void WriteTime(int WriteONDBNumber, int WriteStart, TimeSpan value)
        {
            try
            {
                if ( client.Connected )
                {

                    byte[] res = new byte[4];
                    res.SetS7TimespanAt(0, value);
                    client.DBWrite(WriteONDBNumber, WriteStart, 4, res);
                }
            }
            catch ( Exception e )
            {

                LogHelper.Error("plc写入Float异常" + e.Message);
            }

        }


        public bool GetBitAt(byte[] buffs, int byteStart, int bitStart)
        {
            try
            {
                return buffs.GetBitAt(byteStart, bitStart);
            }
            catch ( Exception e )
            {
                LogHelper.Error("提取bool异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
        }

        public float GetRealAt(byte[] buffs, int byteStart)
        {
            try
            {
                return buffs.GetRealAt(byteStart);
            }
            catch ( Exception e )
            {
                LogHelper.Error("提取float异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
        }

        public short GetShortAt(byte[] buffs, int byteStart)
        {
            try
            {
                return buffs.GetIntAt(byteStart);
            }
            catch ( Exception e )
            {
                LogHelper.Error("提取short异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
        }

        public string GetStringAt(byte[] buffs, int byteStart)
        {
            try
            {
                return buffs.GetStringAt(byteStart);
            }
            catch ( Exception e )
            {
                LogHelper.Error("提取float异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
        }
        public TimeSpan GetTimeSpanAt(byte[] buffs, int byteStart)
        {
            try
            {
                return buffs.GetS7TimespanAt(byteStart);
            }
            catch ( Exception e )
            {
                LogHelper.Error("提取TimeSpan异常" + e.Message);
                throw new TimeoutException‌("PLC读取异常");
            }
        }



        // 参数说明：startByte-起始字节, startBit-起始位(0-7), bitCount-读取位数
        int CalculateBytesToRead(int startByte, int startBit, int bitCount)
        {
            int totalBits = startByte * 8 + startBit + bitCount; // 全局结束位索引
            int endByte = (totalBits - 1) / 8; // 结束字节索引（整数除法）
            return endByte - startByte + 1; // 需要读取的字节数
        }
        bool[] ParseBoolArray(byte[] buffer, int startBit, int bitCount)
        {
            bool[] results = new bool[bitCount];
            for ( int i = 0; i < bitCount; i++ )
            {
                int globalBit = startBit + i; // 目标位全局偏移
                int byteIndex = globalBit / 8; // 字节在buffer中的索引
                int bitIndex = globalBit % 8;  // 位在字节中的索引
                results[ i ] = S7.GetBitAt(buffer, byteIndex, bitIndex); // 提取位值
            }
            return results;
        }

    }
}