using CommonLib.LOG;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Threading;

namespace CommonLib.DAQ
{
    public class CardADLINK  :INotifyPropertyChanged
    {  
        protected static int AllCardCount;
        protected int CardNO;
        /// <summary>
        ///   板卡在系统中的编号
        /// </summary>
        private int CardNumberInSystem   = -1;
        /// <summary>
        /// 缓存大小
        /// </summary>
         protected const int DATA_COUNT = CardADLINK_Wrapper.MAX_CH_NUM * CardADLINK_Wrapper.DATA_COUNT_PERCH ;

        /// <summary>
        /// 缓存
        /// </summary> 
        protected double[] Voltage = new Double[DATA_COUNT];
        private Int32[] DataBuffer = new Int32[DATA_COUNT];
        private int bufLen = (DATA_COUNT * sizeof(UInt32));
        private  IntPtr IntPBuffer = IntPtr.Zero; 
        /// <summary>
        /// 单块卡的设置
        /// </summary>
        public MCMDAQ_DEVICE mCMDAQ_DEVICE { get; protected set; } = new MCMDAQ_DEVICE();
        #region .ctor
        public CardADLINK()
        {
            CardNO = AllCardCount;
            AllCardCount++;
        } 

        #endregion
        #region attrib
        protected bool m_Enable = false;
        protected ManualResetEvent EventKill = new ManualResetEvent(false);
        protected Thread ThreadRead = null;

        public bool Enable
        {
            get
            {
                return m_Enable;
            }
            set
            {
                Boolean bPreEn = m_Enable;
                if (bPreEn != value)
                {
                    if (value)
                    {
                        m_Enable = InitDevice();
                    }
                    else
                    {
                        CloseDevice();
                        m_Enable = value;
                    }
                    if (bPreEn != m_Enable)
                        OnPropertyChanged();
                }
            }
        }
        EventHandler<ErrInfo> EventError = null;
        public int m_chlCnt = 0;
        public int chlCnt
        {
            get
            {
                return m_chlCnt;
            }
            set
            {
                if (value != m_chlCnt)
                { 
                    OnPropertyChanged();
                }
            }
        }

        private void DoEventError(int errCode,string ErrorInfo)
        {
            ErrInfo info = new ErrInfo(errCode, ErrorInfo);
            EventError?.Invoke(this,info);
        }
             
        /// <summary>
        /// 断开连接
        /// </summary>
        private void CloseDevice()
        {
            int err = -1;
            //杀死线程
            try
            {
                if (ThreadRead != null)
                {
                    while (ThreadRead.IsAlive)
                    { 
                        EventKill.Set();
                        Thread.Sleep(10);
                    }
                }
            }
            catch (Exception ex)
            {
                string Info = $"{ex.Message}  \n{ex.StackTrace}";
                LogStorage.Logs.Add(LogLevel.Error, Info);
                DoEventError(err, Info);
            }
            finally
            {
                Marshal.FreeHGlobal(IntPBuffer);
                //关闭端口
            }
        }


        /// <summary>
        /// 连接设备
        /// </summary>
        /// <returns></returns>
        private bool InitDevice()
        {
            string Info = string.Empty;
            Boolean bResult = false;
            int err = -1;
            ushort CardNumber = 0;

            IntPBuffer = Marshal.AllocHGlobal(bufLen);
            try
            {
                // 分配内存 
                // err = CardADLINK_Wrapper.MCM_Release_Card(CardNumber);
                // 注册板卡，获取板卡ID
                CardNumberInSystem = CardADLINK_Wrapper.MCM_Register_Card(mCMDAQ_DEVICE.HostName); // 配置板卡通道     
                if (CardNumberInSystem < 0)
                {
                    throw (new Exception($"MCM_Register_Card Fail CardNumberInSystem= {CardNumberInSystem}"));
                }
                CardNumber = (ushort)CardNumberInSystem;

                err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferMode(CardNumber, false);
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_AsyncDblBufferMode] err = {0}  {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }

                ushort wChanCfg1 = CardADLINK_Wrapper.MCM_AI_DisableIEPE | CardADLINK_Wrapper.MCM_AI_Coupling_DC | CardADLINK_Wrapper.MCM_AI_PseudoDifferential;
                ushort wChanCfg2 = CardADLINK_Wrapper.MCM_AI_DisableIEPE | CardADLINK_Wrapper.MCM_AI_Coupling_DC | CardADLINK_Wrapper.MCM_AI_PseudoDifferential;
                ushort wChanCfg3 = CardADLINK_Wrapper.MCM_AI_DisableIEPE | CardADLINK_Wrapper.MCM_AI_Coupling_DC | CardADLINK_Wrapper.MCM_AI_PseudoDifferential;
                ushort wChanCfg4 = CardADLINK_Wrapper.MCM_AI_DisableIEPE | CardADLINK_Wrapper.MCM_AI_Coupling_DC | CardADLINK_Wrapper.MCM_AI_PseudoDifferential;
                // 配置板卡通道     
                // 不使能IEPE，DC耦合方式，伪差分连接
                err = CardADLINK_Wrapper.MCM_AI_204_Chan_Config(
                   CardNumber,
                   wChanCfg1,
                   wChanCfg2,
                   wChanCfg3,
                   wChanCfg4
                    );
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_204_Chan_Config] err ={err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }
                // 设置触发参数 
                // 使用板载时钟，立即触发
                ushort wConvSrc = CardADLINK_Wrapper.MCM_AI_CONVSRC_INT;
                ushort wTrigMode = CardADLINK_Wrapper.MCM_AI_TRGMOD_POST;
                ushort wTrigCtrl = (ushort)CardADLINK_Wrapper.MCM_Trig_Type.MCM_AI_TRGSRC_SOFT;
                uint wReTrigCnt = 0;
                uint dwDLY1Cnt = 0;
                uint dwDLY2Cnt = 0;
                double dwTrgLevel = 0;
                err = CardADLINK_Wrapper.MCM_AI_Trig_Config(
                    CardNumber,
                    wConvSrc,
                    wTrigMode,
                    wTrigCtrl,
                    wReTrigCnt,
                    dwDLY1Cnt,
                    dwDLY2Cnt,
                    dwTrgLevel
                    ); // 使用板载时钟，立即触发
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_204_Trig_Config] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }

                // 使能双buffer模式
                err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferMode(CardNumber, true);
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_AsyncDblBufferMode] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }


                // 配置通道数组，选择所有通道
                UInt16[] chs = {
               (UInt16) CardADLINK_Wrapper.AI_CHANNEL.AI_CH_0,
                (UInt16)  CardADLINK_Wrapper.AI_CHANNEL.AI_CH_1,
                (UInt16)  CardADLINK_Wrapper.AI_CHANNEL.AI_CH_2,
                 (UInt16) CardADLINK_Wrapper.AI_CHANNEL.AI_CH_3
            };
                // 设置每通道输入范围，±10V输入
                UInt16[] adranges = {
                 (UInt16) CardADLINK_Wrapper.VRange.AD_B_10_V,
                (UInt16)  CardADLINK_Wrapper.VRange.AD_B_10_V,
               (UInt16)  CardADLINK_Wrapper.VRange. AD_B_10_V,
               (UInt16)  CardADLINK_Wrapper.VRange. AD_B_10_V
            };

                UInt16  asyncMode = (UInt16)  CardADLINK_Wrapper.SyncMode.ASYNCH_OP;
                err = CardADLINK_Wrapper.MCM_AI_ContReadMultiChannels(
                    CardNumber,
                   4,//CardADLINK_Wrapper.CH_NUM,
                    chs,
                    adranges,
                    IntPBuffer,
                    CardADLINK_Wrapper.DATA_COUNT_PERCH,
                    CardADLINK_Wrapper.SAMPLING_RATE,
                    asyncMode
                    );
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_ContReadMultiChannels] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }
                ThreadRead = new Thread(TaskRead);
                ThreadRead.IsBackground = true;
                ThreadRead.Start();
                bResult = err == 0;
            }
            catch (Exception ex)
            {
                int err2 = CardADLINK_Wrapper.MCM_Release_Card(CardNumber);      // 释放板卡资源
                Info = $"{mCMDAQ_DEVICE.HostName}  {ex.Message}  \n{ex.StackTrace}";
                LogStorage.Logs.Add(LogLevel.Error, Info);
            }
            finally
            {
                if(bResult==false)
                {
                    CloseDeviceBySelf(CardNumber);
                }
            }
            return bResult;
        }
        public EventHandler EventVoltage;

        public void DoEventVoltage()
        {
            EventVoltage?.Invoke(this, new EventArgs());
        }



        private void TaskRead()
        {
            ushort CardNumber = (ushort)CardNumberInSystem;
            int err = -1;
            byte halfReady = 0;
            byte stopFlag = 0;
            UInt16 overrunFlag = 0;

            EventKill.Reset();
            try
            { 
                while (EventKill.WaitOne(10) == false)
                {
                    err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferHalfReady(CardNumber, out halfReady, out stopFlag);
                    if (err != 0)
                    {
                        throw new Exception($"[MCM_AI_AsyncDblBufferHalfReady] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                    }
                    if (halfReady == 1)
                    { 
                        err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferTransfer(CardNumber, IntPBuffer);
                        if (err != 0)
                        {
                            throw new Exception($"[MCM_AI_AsyncDblBufferTransfer] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                        }

                        err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferOverrun(CardNumber, 0, out overrunFlag);
                        if (err != 0)
                        {
                            throw new Exception($"[MCM_AI_AsyncDblBufferOverrun] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                        } 
                        Marshal.Copy(IntPBuffer, DataBuffer, 0, DATA_COUNT);

                        err = CardADLINK_Wrapper.MCM_AI_ContVScale(CardNumber, CardADLINK_Wrapper.VRange.AD_B_10_V,
                            IntPBuffer, Voltage, DATA_COUNT);
                        if (err != 0)
                        {
                            throw new Exception($"[MCM_AI_ContVScale] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                        }
                        DoEventVoltage();
                    }
                }
            }
            catch (Exception ex)
            {
                int err2 = CardADLINK_Wrapper.MCM_Release_Card(CardNumber);      // 释放板卡资源
                string Info = $"{mCMDAQ_DEVICE.HostName}  {ex.Message}  \n{ex.StackTrace}";
                LogStorage.Logs.Add(LogLevel.Error, Info);
            } 
            finally
            {
                try
                {
                    CloseDeviceBySelf(CardNumber);

                }
                catch(Exception ex)
                {
                    string Info = $"{mCMDAQ_DEVICE.HostName}  {ex.Message}  \n{ex.StackTrace}";
                    LogStorage.Logs.Add(LogLevel.Error, Info);
                }
            }
        }
        #endregion 
        void CloseDeviceBySelf(ushort CardNumber)
        {
            string Info = string.Empty;
            UInt32 accessCnt = 0;             // 可访问数  
            int err = 0;
            try
            {
                err = CardADLINK_Wrapper.MCM_AI_AsyncClear(CardNumber, ref accessCnt);                       // 清除缓存
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_AsyncClear] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }
                err = CardADLINK_Wrapper.MCM_AI_AsyncDblBufferMode(CardNumber, false);                  // 清除双buffer模式
                if (err != 0)
                {
                    throw new Exception($"[MCM_AI_AsyncDblBufferMode] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }
                err = CardADLINK_Wrapper.MCM_Release_Card(CardNumber);      // 释放板卡资源 
                if (err != 0)
                {
                    throw new Exception($"[MCM_Release_Card] err = {err} {((CardADLINK_Wrapper.CARDADLINK_ERROR)err).ToString()}");
                }
            }
            catch (Exception ex)
            { 
                 Info = $"{mCMDAQ_DEVICE.HostName}  {ex.Message}  \n{ex.StackTrace}";
                LogStorage.Logs.Add(LogLevel.Error, Info);
            }
        }
        #region staticMethod
        /*
        public static int ScanDevice(Type type)
        {  
            ushort wModuleNum = 0; 
            MCMDAQ_DEVICE[] _AvailModules = new MCMDAQ_DEVICE[250];

            var card = Activator.CreateInstance(type);
            // DAQCard card = new DAQCard();



            //启动DDS模式 ,网页连上 板卡,启用
            //网卡配置文件ospl.xml
            // <NetworkInterfaceAddress> AUTO </NetworkInterfaceAddress>  修改为
            // <NetworkInterfaceAddress> MCM204 </NetworkInterfaceAddress>
            //然后将网卡名字修改为  MCM204
            int err = CardADLINK_Wrapper.MCM_Device_Scan(out wModuleNum, _AvailModules);           // 扫描设备 

            if (err == 0)
            {
                dictCard.Clear();
                CardADLINK.AllCardCount = 0;
                for (int i = 0; i < wModuleNum; i++)
                {
                    card = Activator.CreateInstance(type);
                    //card.mCMDAQ_DEVICE = _AvailModules[i];
                    //dictCard.Add(card.CardNO, card); ;
                }
            }
            else
            {  
                if (Debugger.isInDebug())
                { 
                    MCMDAQ_DEVICE  module = new MCMDAQ_DEVICE();
                    module.IP = "169.254.1.11";
                    module.cardID = 0;
                    module.HostName ="MCM204-11";
                    module.MAC = "00:30:64:32:62:b0";
                    module.deviceID = 204;
                    module.moduleType = 5;

                    //card.mCMDAQ_DEVICE = module;
                    //dictCard.Add(card.CardNO, card);

                    err = 0;
                }
            }
            return err;
        }
        */
        #endregion

        #region INotifyPropertyChanged
        public event PropertyChangedEventHandler PropertyChanged;
        /// <summary>
        /// //属性更新事件 CallerMemberName 自动填写属性的名字
        /// </summary>
        /// //[CallerMemberName]  需要 4.0以上才有
        /// <param name="propertyName"></param>   
        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName=null)
        {
            //通过反射读取变量名,将值加入log
            if (PropertyChanged != null)
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
        } 
        #endregion 
    }
}