using MvCamCtrl.NET;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing.Imaging;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;
using System.Net;
using OpenCvSharp;
using System.Reflection.Metadata;




//[Device("HikCamera", "海康相机", EnumHelper.DeviceAttributeType.Device)]
public class HikCameraDriver
{

    #region CameraBase
   
    public bool IfSuccess = false;

    float _lastExposure = 0;
    float _lastGain = 0;
    /// <summary>
    /// 相机拍照计数
    /// </summary>
    public volatile int SnapshotCount = 0;
    
    public Action<DateTime, Mat, int> OnHImageOutput { get; set; }

    public void Init()
    {

        //_bufferImgSetQueue = new ConcurrentQueue<ImageSet>();
        //_bufferImgSet = new ImageSet();
        //pCallBackFunc = new MyCamera.cbExceptiondelegate(cbExceptiondelegate);
#if false
            #region 根据IP连接相机

            stDevInfo.nTLayerType = MyCamera.MV_GIGE_DEVICE;
            MyCamera.MV_GIGE_DEVICE_INFO stGigEDev = new MyCamera.MV_GIGE_DEVICE_INFO();
            //string strCurrentIp = IIConfig.CameraIP;// ch:需要连接的相机ip(根据实际填充) 

            //string strNetExport = IIConfig.ComputerIP;   // ch:相机对应的网卡ip(根据实际填充) 

            string strCurrentIp = "192.168.1.21";// ch:需要连接的相机ip(根据实际填充) 

            string strNetExport = "192.168.1.20";  // ch:相机对应的网卡ip(根据实际填充) 

            var parts = strCurrentIp.Split('.');
            int nIp1 = Convert.ToInt32(parts[0]);
            int nIp2 = Convert.ToInt32(parts[1]);
            int nIp3 = Convert.ToInt32(parts[2]);
            int nIp4 = Convert.ToInt32(parts[3]);
            stGigEDev.nCurrentIp = (uint)((nIp1 << 24) | (nIp2 << 16) | (nIp3 << 8) | nIp4);

            parts = strNetExport.Split('.');
            nIp1 = Convert.ToInt32(parts[0]);
            nIp2 = Convert.ToInt32(parts[1]);
            nIp3 = Convert.ToInt32(parts[2]);
            nIp4 = Convert.ToInt32(parts[3]);
            stGigEDev.nNetExport = (uint)((nIp1 << 24) | (nIp2 << 16) | (nIp3 << 8) | nIp4);

            IntPtr stGigeInfoPtr = Marshal.AllocHGlobal(216);
            Marshal.StructureToPtr(stGigEDev, stGigeInfoPtr, false);
            stDevInfo.SpecialInfo.stGigEInfo = new Byte[540];
            Marshal.Copy(stGigeInfoPtr, stDevInfo.SpecialInfo.stGigEInfo, 0, 540);
            //释放内存空间
            Marshal.FreeHGlobal(stGigeInfoPtr);

            #endregion
#endif

    }

    protected void Pause()
    {
    }

    protected void Resume()
    {
    }

    public void Start(string v)
    {
        #region 枚举相机后根据IP地址匹配连接相机
        //将IP地址转换为字节数组 
        uint intAddress = 0;
        if (/*(IIConfig.HikCameraType == EnumHelper.HikCameraType.Gige) &&*/ (!string.IsNullOrWhiteSpace("192.168.1.21")))
        {
            byte[] IPArr = IPAddress.Parse("192.168.1.21").GetAddressBytes();
            for (int i = 0; i < IPArr.Length; i++)
            {
                intAddress += (uint)(IPArr[i] << (IPArr.Length - 1 - i) * 8);
            }
        }

        MyCamera.MV_CC_DEVICE_INFO_LIST m_pDeviceList = new MyCamera.MV_CC_DEVICE_INFO_LIST();

        int nRet = MyCamera.MV_CC_EnumDevices_NET(MyCamera.MV_GIGE_DEVICE | MyCamera.MV_USB_DEVICE, ref m_pDeviceList);
        if (0 != nRet)
        {
            throw new Exception($"Enumerate devices fail!");
        }
        else
        {
            //LogAsync(DateTime.Now, $"搜索获取{m_pDeviceList.nDeviceNum.ToInt()}台相机在线", "");
        }

        bool isCameraFound = false;
        for (int i = 0; i < m_pDeviceList.nDeviceNum; i++)
        {
            MyCamera.MV_CC_DEVICE_INFO device = (MyCamera.MV_CC_DEVICE_INFO)Marshal.PtrToStructure(m_pDeviceList.pDeviceInfo[i], typeof(MyCamera.MV_CC_DEVICE_INFO));
            IntPtr buffer = IntPtr.Zero;

            if (device.nTLayerType == MyCamera.MV_GIGE_DEVICE)
            {
                buffer = Marshal.UnsafeAddrOfPinnedArrayElement(device.SpecialInfo.stGigEInfo, 0);
                MyCamera.MV_GIGE_DEVICE_INFO stGigEDev = (MyCamera.MV_GIGE_DEVICE_INFO)Marshal.PtrToStructure(buffer, typeof(MyCamera.MV_GIGE_DEVICE_INFO));

                if (stGigEDev.nCurrentIp == intAddress)
                {
                    stDevInfo = device;
                    isCameraFound = true;
                }
            }
            else if (device.nTLayerType == MyCamera.MV_USB_DEVICE)
            {
                
            }

            //释放内存空间
            //Marshal.FreeHGlobal(buffer);

            if (isCameraFound)
                break;
        }

        if (!isCameraFound)
        {
            throw new Exception($"相机未能找到");
        }

        #endregion


        // ch:创建设备 | en: Create device
        nRet = device.MV_CC_CreateDevice_NET(ref stDevInfo);
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Create device failed:{nRet:x8}");
        }

        // ch:打开设备 | en:Open device
        nRet = device.MV_CC_OpenDevice_NET();
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Open device failed:{nRet:x8}");
        }


        // ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera)
        if (stDevInfo.nTLayerType == MyCamera.MV_GIGE_DEVICE)
        {
            int nPacketSize = device.MV_CC_GetOptimalPacketSize_NET();
            if (nPacketSize > 0)
            {
                nRet = device.MV_CC_SetIntValue_NET("GevSCPSPacketSize", (uint)nPacketSize);
                if (nRet != MyCamera.MV_OK)
                {
                    Console.WriteLine("Warning: Set Packet Size failed {0:x8}", nRet);
                }
            }
            else
            {
                Console.WriteLine("Warning: Get Packet Size failed {0:x8}", nPacketSize);
            }
        }

        // ch:注册异常回调函数 | en:Register Exception Callback
        nRet = device.MV_CC_RegisterExceptionCallBack_NET(pCallBackFunc, IntPtr.Zero);
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Register expection callback failed:{nRet}");
        }
        GC.KeepAlive(pCallBackFunc);

        // ch:设置采集连续模式 | en:Set Continues Aquisition Mode
        device.MV_CC_SetEnumValue_NET("AcquisitionMode", 2);// ch:工作在连续模式 | en:Acquisition On Continuous Mode
        if (false)
        {
            device.MV_CC_SetEnumValue_NET("TriggerMode", 0);    // ch:连续模式 | en:Continuous

            // ch:注册回调函数 | en:Register image callback
            ImageCallback = new MyCamera.cbOutputExdelegate(ImageCallbackFunc);
            nRet = device.MV_CC_RegisterImageCallBackEx_NET(ImageCallback, IntPtr.Zero);
            if (MyCamera.MV_OK != nRet)
            {
                throw new Exception("Register image callback failed!");
            }
        }
        else
        {
            // ch:设置触发模式为off || en:set trigger mode as off
            nRet = device.MV_CC_SetEnumValue_NET("TriggerMode", 1);
            if (MyCamera.MV_OK != nRet)
            {
                throw new Exception("Set TriggerMode failed!");
            }

            if (false)
            {
                // ch:触发源选择:0 - Line0; | en:Trigger source select:0 - Line0;
                //           1 - Line1;
                //           2 - Line2;
                //           3 - Line3;
                //           4 - Counter;
                //           7 - Software;
                nRet = device.MV_CC_SetEnumValue_NET("TriggerSource", 0);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Set Line0 Trigger failed!");
                }

                // ch:注册回调函数 | en:Register image callback
                ImageCallback = new MyCamera.cbOutputExdelegate(ImageCallbackFunc);
                nRet = device.MV_CC_RegisterImageCallBackEx_NET(ImageCallback, IntPtr.Zero);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Register image callback failed!");
                }
            }
            else
            {
                nRet = device.MV_CC_SetEnumValue_NET("TriggerSource", 7);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Set Software Trigger failed!");
                }
            }
        }
        // ch:开启抓图 || en: start grab image
        nRet = device.MV_CC_StartGrabbing_NET();
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Start grabbing failed:{nRet:x8}");
        }

        else
        {
            IfSuccess = true;
        }


    }

    private void IIConfig_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
    {
        if (e.PropertyName == "IsHardwareTrigger" && !false)
        {
            // ch:停止抓图 | en:Stop grab image
            nRet = device.MV_CC_StopGrabbing_NET();
            if (MyCamera.MV_OK != nRet)
            {
                throw new Exception($"Stop grabbing failed{nRet:x8}");
            }

            if (false)
            {
                // ch:触发源选择:0 - Line0; | en:Trigger source select:0 - Line0;
                //           1 - Line1;
                //           2 - Line2;
                //           3 - Line3;
                //           4 - Counter;
                //           7 - Software;
                nRet = device.MV_CC_SetEnumValue_NET("TriggerSource", 0);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Set Line0 Trigger failed!");
                }

                // ch:注册回调函数 | en:Register image callback
                ImageCallback = new MyCamera.cbOutputExdelegate(ImageCallbackFunc);
                nRet = device.MV_CC_RegisterImageCallBackEx_NET(ImageCallback, IntPtr.Zero);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Register image callback failed!");
                }
            }
            else
            {
                nRet = device.MV_CC_SetEnumValue_NET("TriggerSource", 7);
                if (MyCamera.MV_OK != nRet)
                {
                    throw new Exception("Set Software Trigger failed!");
                }
            }

            // ch:开启抓图 || en: start grab image
            nRet = device.MV_CC_StartGrabbing_NET();
            if (MyCamera.MV_OK != nRet)
            {
                throw new Exception($"Start grabbing failed:{nRet:x8}");
            }

         
        }
    }

    public void Stop()
    {
        // IIConfig.PropertyChanged -= IIConfig_PropertyChanged;


        // ch:停止抓图 | en:Stop grab image
        nRet = device.MV_CC_StopGrabbing_NET();
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Stop grabbing failed{nRet:x8}");
        }

        // ch:关闭设备 | en:Close device
        nRet = device.MV_CC_CloseDevice_NET();
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Close device failed{nRet:x8}");
        }

        // ch:销毁设备 | en:Destroy device
        nRet = device.MV_CC_DestroyDevice_NET();
        if (MyCamera.MV_OK != nRet)
        {
            throw new Exception($"Destroy device failed:{nRet:x8}");
        }
    }
    #endregion

    #region HikCamera    
    public MyCamera.cbOutputExdelegate ImageCallback;
    MyCamera.MV_FRAME_OUT _frame = new MyCamera.MV_FRAME_OUT();
    readonly ManualResetEvent _snapHandle = new ManualResetEvent(false);
    bool _snapFlag = false;

    //ImageSet _bufferImgSet = null;
    ManualResetEvent _bufferHandle = new ManualResetEvent(false);
    //ConcurrentQueue<ImageSet> _bufferImgSetQueue = new ConcurrentQueue<ImageSet>();
    //volatile ImageSet _bufferImgSet = new ImageSet();


    void ImageCallbackFunc(IntPtr pData, ref MyCamera.MV_FRAME_OUT_INFO_EX pFrameInfo, IntPtr pUser)
    {
        try
        {
           
            if (_snapFlag)
            {
                _snapFlag = false;
                _frame = new MyCamera.MV_FRAME_OUT
                {
                    stFrameInfo = pFrameInfo,
                    pBufAddr = pData
                };
                _snapHandle.Set();
            }
            //  }
        }
        catch (Exception ex)
        {
            //LogAsync(DateTime.Now, LogLevel.Exception, $"{Name}相机取像异常,{ex.GetExceptionMessage()}");
        }
    }


    


    private bool IsMonoData(MyCamera.MvGvspPixelType enGvspPixelType)
    {
        switch (enGvspPixelType)
        {
            case MyCamera.MvGvspPixelType.PixelType_Gvsp_Mono8:
            case MyCamera.MvGvspPixelType.PixelType_Gvsp_Mono10:
            case MyCamera.MvGvspPixelType.PixelType_Gvsp_Mono10_Packed:
            case MyCamera.MvGvspPixelType.PixelType_Gvsp_Mono12:
            case MyCamera.MvGvspPixelType.PixelType_Gvsp_Mono12_Packed:
                return true;

            default:
                return false;
        }
    }

    public void RefreshImageBufferHandle()
    {
        //_bufferImgSet?.Dispose();
        //_bufferImgSet = null;

        _bufferHandle.Reset();
    }

    object _bufferLock = new object();


  
    public void Snapshot(int pageBum, string napshotFileName)
    {
        //SnapshotCount = pageBum;
        //SnapshotFileNames = napshotFileName;

        Snapshot();
    }
    public void Snapshot()
    {
        Stopwatch sw = new Stopwatch();
        sw.Start();
      
        MyCamera.MV_FRAME_OUT frameInfo = new MyCamera.MV_FRAME_OUT();
        nRet = MyCamera.MV_OK;
        if (true)
        {
            // ch: 触发命令 || en: Trigger command
            nRet = device.MV_CC_SetCommandValue_NET("TriggerSoftware");
            if (MyCamera.MV_OK != nRet)
            {
                throw new Exception($"相机拍照触发失败:{nRet}");
            }

            nRet = device.MV_CC_GetImageBuffer_NET(ref frameInfo, 1000);
            nRet = device.MV_CC_FreeImageBuffer_NET(ref frameInfo);
        }
        else
        {
            _snapHandle.Reset();
            _snapFlag = true;
            _snapHandle.WaitOne();
            //lock (_imgCallBackLock)
            {
                frameInfo.stFrameInfo = _frame.stFrameInfo;
                frameInfo.pBufAddr = _frame.pBufAddr;
            }
        }

        // ch:获取一帧图像 | en:Get one image
        if (MyCamera.MV_OK == nRet)
        {
            if (frameInfo.pBufAddr != IntPtr.Zero)
            {
                if (nRet == MyCamera.MV_OK)
                {
                    var pFrameInfo = frameInfo.stFrameInfo;

                    Mat _mat = new Mat(pFrameInfo.nWidth, pFrameInfo.nHeight, MatType.CV_8UC3, frameInfo.pBufAddr);
                    OnHImageOutput?.Invoke(DateTime.Now, _mat, SnapshotCount);
                    
                }
            }
        }
        else
        {
            throw new Exception($"Grap Image Failed:{nRet:x8}");
        }

        sw.Stop();
        //LogAsync(DateTime.Now, LogLevel.Information, $"取像耗时：{sw.ElapsedMilliseconds} ms");
    }



    readonly MyCamera device = new MyCamera();
    MyCamera.MV_CC_DEVICE_INFO stDevInfo = new MyCamera.MV_CC_DEVICE_INFO();
    int nRet = MyCamera.MV_OK;
    MyCamera.cbExceptiondelegate pCallBackFunc;

   
   
    #endregion
}