using System.Diagnostics;
using System.Reflection.Metadata;
using System.Xml.Linq;
using DH.Commons.Base;
using DVPCameraType;
using OpenCvSharp;
using static System.Net.Mime.MediaTypeNames;



namespace DH.Devices.Camera
{

    public class Do3ThinkCamera : CameraBase
    {

        private dvpCameraInfo stDevInfo = new dvpCameraInfo();
        private dvpStatus nRet = dvpStatus.DVP_STATUS_OK;
        private DVPCamera.dvpEventCallback pCallBackFunc;
        private uint m_handle;

        public int m_n_dev_count = 0;
        private DVPCamera.dvpStreamCallback ImageCallback;
        public dvpStreamFormat dvpStreamFormat = dvpStreamFormat.S_RGB24;
        public int m_CamCount = 0;
        public Double m_dfDisplayCount = 0;
        public Do3ThinkCamera()
        {

        }





        public bool IsValidHandle(uint handle)
        {
            bool bValidHandle = false;
            dvpStatus status = DVPCamera.dvpIsValid(handle, ref bValidHandle);
            if (status == dvpStatus.DVP_STATUS_OK)
            {
                return bValidHandle;
            }
            return false;
        }


        public override bool CameraConnect()
        {
            try
            {
                nRet = DVPCamera.dvpOpenByUserId(CameraName,
                 dvpOpenMode.OPEN_NORMAL,
                 ref m_handle);

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

                nRet = DVPCamera.dvpSetTargetFormat(m_handle, (dvpStreamFormat)dvpStreamFormat);
                if (dvpStatus.DVP_STATUS_OK != nRet)
                {
                    throw new Exception($"Set image format failed:{nRet:x8}");
                }

                dvpCameraInfo camerainfo = new dvpCameraInfo();
                nRet = DVPCamera.dvpGetCameraInfo(m_handle, ref camerainfo);

                SerialNumber = camerainfo.SerialNumber;
                // ch:注册异常回调函数 | en:Register Exception Callback
                //nRet = DVPCamera.dvpRegisterEventCallback(m_handle, pCallBackFunc, dvpEvent.EVENT_DISCONNECTED, IntPtr.Zero);
                //if (nRet != dvpStatus.DVP_STATUS_OK)
                //{
                //    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 
                if (IsContinueMode)
                {
                    // ch:设置触发模式为off || en:set trigger mode as off
                    nRet = DVPCamera.dvpSetTriggerState(m_handle, false);
                    if (dvpStatus.DVP_STATUS_OK != nRet)
                    {
                        throw new Exception("Set TriggerMode failed!");
                    }
                }
                else
                {
                    // ch:设置触发模式为on || en:set trigger mode as on
                    nRet = DVPCamera.dvpSetTriggerState(m_handle, true);
                    if (dvpStatus.DVP_STATUS_OK != nRet)
                    {
                        throw new Exception("Set TriggerMode failed!");
                    }

                    // 硬触发
                    if (IsHardwareTrigger)
                    {
                        // ch:触发源选择:1 - Line1; | en:Trigger source select:1 - Line1;
                        nRet = DVPCamera.dvpSetTriggerSource(m_handle, dvpTriggerSource.TRIGGER_SOURCE_LINE1);
                        if (dvpStatus.DVP_STATUS_OK != nRet)
                        {
                            throw new Exception("Set Line1 Trigger failed!");
                        }

                        // ch:注册回调函数 | en:Register image callback 
                        ImageCallback = new DVPCamera.dvpStreamCallback(ImageCallbackFunc);
                        nRet = DVPCamera.dvpRegisterStreamCallback(m_handle, ImageCallback, dvpStreamEvent.STREAM_EVENT_PROCESSED, IntPtr.Zero);
                        if (dvpStatus.DVP_STATUS_OK != nRet)
                        {
                            throw new Exception("Register image callback failed!");
                        }
                    }
                    else // 软触发
                    {
                        nRet = DVPCamera.dvpSetTriggerSource(m_handle, dvpTriggerSource.TRIGGER_SOURCE_SOFTWARE);
                        if (dvpStatus.DVP_STATUS_OK != nRet)
                        {
                            throw new Exception("Set Software Trigger failed!");
                        }
                    }

                    // ch:开启抓图 || en: start grab image
                    nRet = DVPCamera.dvpStart(m_handle);
                    if (dvpStatus.DVP_STATUS_OK != nRet)
                    {
                        throw new Exception($"Start grabbing failed:{nRet:x8}");
                    }
                    //// 曝光
                    //if (IIConfig.DefaultExposure != 0)
                    //{
                    //    SetExposure(IIConfig.DefaultExposure);
                    //}
                    //// 增益
                    //if (IIConfig.Gain >= 0)
                    //{
                    //    SetGain(IIConfig.Gain);
                    //}
                    //SetPictureRoi(IIConfig.VelocityPara.A_Pic_X, IIConfig.VelocityPara.A_Pic_Y, IIConfig.VelocityPara.Width, IIConfig.VelocityPara.Hight);

                    //// 设置 触发延迟
                    //if (IIConfig.TriggerDelay > 0)
                    //{
                    //    nRet = DVPCamera.dvpSetTriggerDelay(m_handle, IIConfig.TriggerDelay);
                    //    if (nRet != dvpStatus.DVP_STATUS_OK)
                    //    {
                    //        throw new Exception("Set TriggerDelay failed!");
                    //    }
                    //}

                    //// 信号消抖
                    //if (IIConfig.LineDebouncerTime > 0)
                    //{
                    //    nRet = DVPCamera.dvpSetTriggerJitterFilter(m_handle, IIConfig.LineDebouncerTime);
                    //    if (nRet != dvpStatus.DVP_STATUS_OK)
                    //    {
                    //        throw new Exception($"LineDebouncerTime set failed:{nRet}");
                    //    }
                    //}

                    //IIConfig.PropertyChanged -= IIConfig_PropertyChanged;
                    //IIConfig.PropertyChanged += IIConfig_PropertyChanged;

                 
                }
                return true;
            }
            catch
            {
                return false;
            }

        }




        private void IIConfig_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
        {
            //if (e.PropertyName == "IsHardwareTrigger" && !IIConfig.IsContinueMode)
            //{
            //    // ch:停止抓图 | en:Stop grab image
            //    nRet = DVPCamera.dvpStop(m_handle);
            //    if (nRet != dvpStatus.DVP_STATUS_OK)
            //    {
            //        throw new Exception($"Stop grabbing failed{nRet:x8}");
            //    }

            //    // 硬触发
            //    if (IIConfig.IsHardwareTrigger)
            //    {
            //        // ch:触发源选择:1 - Line1; | en:Trigger source select:1 - Line1;
            //        nRet = DVPCamera.dvpSetTriggerSource(m_handle, dvpTriggerSource.TRIGGER_SOURCE_LINE1);
            //        if (dvpStatus.DVP_STATUS_OK != nRet)
            //        {
            //            throw new Exception("Set Line1 Trigger failed!");
            //        }

            //        // ch:注册回调函数 | en:Register image callback 
            //        ImageCallback = new DVPCamera.dvpStreamCallback(ImageCallbackFunc);
            //        nRet = DVPCamera.dvpRegisterStreamCallback(m_handle, ImageCallback, dvpStreamEvent.STREAM_EVENT_PROCESSED, IntPtr.Zero);
            //        if (dvpStatus.DVP_STATUS_OK != nRet)
            //        {
            //            throw new Exception("Register image callback failed!");
            //        }
            //    }
            //    else // 软触发
            //    {
            //        nRet = DVPCamera.dvpSetTriggerSource(m_handle, dvpTriggerSource.TRIGGER_SOURCE_SOFTWARE);
            //        if (dvpStatus.DVP_STATUS_OK != nRet)
            //        {
            //            throw new Exception("Set Software Trigger failed!");
            //        }
            //    }

            //    // ch:开启抓图 || en: start grab image
            //    nRet = DVPCamera.dvpStart(m_handle);
            //    if (dvpStatus.DVP_STATUS_OK != nRet)
            //    {
            //        throw new Exception($"Start grabbing failed:{nRet:x8}");
            //    }
            //    // 曝光
            //    if (IIConfig.DefaultExposure != 0)
            //    {
            //        SetExposure(IIConfig.DefaultExposure);
            //    }
            //    // 增益
            //    if (IIConfig.Gain >= 0)
            //    {
            //        SetGain(IIConfig.Gain);
            //    }

            //    // 设置 触发延迟
            //    if (IIConfig.TriggerDelay > 0)
            //    {
            //        nRet = DVPCamera.dvpSetTriggerDelay(m_handle, IIConfig.TriggerDelay);
            //        if (nRet != dvpStatus.DVP_STATUS_OK)
            //        {
            //            throw new Exception("Set TriggerDelay failed!");
            //        }
            //    }

            //    // 信号消抖
            //    if (IIConfig.LineDebouncerTime > 0)
            //    {
            //        nRet = DVPCamera.dvpSetTriggerJitterFilter(m_handle, IIConfig.LineDebouncerTime);
            //        if (nRet != dvpStatus.DVP_STATUS_OK)
            //        {
            //            throw new Exception($"LineDebouncerTime set failed:{nRet}");
            //        }
            //    }
            //}
        }

        /// <summary>
        /// 设置曝光值
        /// </summary>
        /// <param name="exposure">曝光值</param>
        /// <exception cref="Exception"></exception>
        private void SetExposure(double exposure)
        {
            // 关闭自动曝光
            nRet = DVPCamera.dvpSetAeOperation(m_handle, dvpAeOperation.AE_OP_OFF);
            if (nRet != dvpStatus.DVP_STATUS_OK)
            {
                throw new Exception($"Exposure set failed:{nRet}");
            }
            // 设置曝光值
            nRet = DVPCamera.dvpSetExposure(m_handle, exposure);
            if (nRet != dvpStatus.DVP_STATUS_OK)
            {
                throw new Exception($"Exposure set failed:{nRet}");
            }
        }



        /// <summary>
        /// 设置增益
        /// </summary>
        /// <param name="gain"></param>
        /// <exception cref="Exception"></exception>
        private void SetGain(float gain)
        {
            // 设置增益
            nRet = DVPCamera.dvpSetAnalogGain(m_handle, gain);

            if (nRet != dvpStatus.DVP_STATUS_OK)
            {
                throw new Exception($"Gain set failed:{nRet}");
            }
        }
        private void SetPictureRoi(int x, int y, int W, int H)
        {
            dvpRegion dvpR = new dvpRegion();

            dvpR.X = x;
            dvpR.Y = y;
            dvpR.W = W;
            dvpR.H = H;
            // 设置增益
            nRet = DVPCamera.dvpSetRoi(m_handle, dvpR);

            if (nRet != dvpStatus.DVP_STATUS_OK)
            {
                throw new Exception($"SetRoi set failed:{nRet}");
            }
        }

        public int ImageCallbackFunc(uint handle, dvpStreamEvent _event, IntPtr pContext, ref dvpFrame refFrame, IntPtr pBuffer)
        {
            Mat cvImage = new Mat();
            if (this.CameraName.Equals("Cam1"))
            {
                Console.WriteLine(  );
            }
            if (this.CameraName.Equals("Cam2"))
            {
                Console.WriteLine();
            }
            try
            {

                Interlocked.Increment(ref SnapshotCount);


                int nWidth = refFrame.iWidth;
                int nHeight = refFrame.iHeight;

                // 根据图像格式创建Mat
                switch (refFrame.format)
                {
                    case dvpImageFormat.FORMAT_RGB24:
                        cvImage = Mat.FromPixelData(nHeight, nWidth, MatType.CV_8UC3, pBuffer);
                        Cv2.CvtColor(cvImage, cvImage, ColorConversionCodes.RGB2BGR);
                        break;

                    case dvpImageFormat.FORMAT_BGR24:
                        cvImage = Mat.FromPixelData(nHeight, nWidth, MatType.CV_8UC3, pBuffer);
                        break;

                    case dvpImageFormat.FORMAT_MONO:
                        cvImage = Mat.FromPixelData(nHeight, nWidth, MatType.CV_8UC1, pBuffer);
                        break;

                    default:
                        cvImage = Mat.FromPixelData(nHeight, nWidth, MatType.CV_8UC1, pBuffer);
                        break;
                }
                Mat smat = cvImage.Clone();
                OnHImageOutput?.Invoke(DateTime.Now, this, smat);






            }
            catch (Exception ex)
            {

            }
            finally
            {
                cvImage?.Dispose();
            }
            return 0;
        }

        public override bool CameraDisConnect()
        {
            try
            {
                dvpStreamState StreamState = new dvpStreamState();
                nRet = DVPCamera.dvpGetStreamState(m_handle, ref StreamState);
                Debug.Assert(nRet == dvpStatus.DVP_STATUS_OK);
                if (StreamState == dvpStreamState.STATE_STARTED)
                {
                    // stop camera
                    nRet = DVPCamera.dvpStop(m_handle);
                    Debug.Assert(nRet == dvpStatus.DVP_STATUS_OK);
                    if (nRet != dvpStatus.DVP_STATUS_OK)
                    {
                        throw new Exception($"Stop grabbing failed{nRet:x8}");
                    }
                }

                nRet = DVPCamera.dvpUnregisterEventCallback(m_handle, pCallBackFunc, dvpEvent.EVENT_DISCONNECTED, IntPtr.Zero);
                if (nRet != dvpStatus.DVP_STATUS_OK)
                {
                    throw new Exception($"Unregister expection callback failed:{nRet}");
                }

                // ch:关闭设备 | en:Close device
                nRet = DVPCamera.dvpClose(m_handle);
                if (nRet != dvpStatus.DVP_STATUS_OK)
                {
                    throw new Exception($"Close device failed{nRet:x8}");
                }

                m_handle = 0;
                return true;
            }
            catch
            {
                return false;
            }

        }


    }
}