using OTSCLRINTERFACE;
using OTSCommon.DBOperate.Model;
using OTSDataType;
using OTSMeasureApp._0_OTSModel.OTSDataType;
using OTSModelSharp;
using OTSModelSharp.ServiceCenter;
using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using static OTSDataType.otsdataconst;

namespace OTSMeasureApp._1_OTSMeasure.Measure._3_MeasureFlow
{
    internal class CBrightnessContrastAdjust
    {
       
        protected static NLog.Logger log;

    
        protected CMeasure m_pMsrThread;

         double curbrightness = 0, curcontrast = 0;

        protected ISemController m_SemHardwareMgr;
        protected IScanController m_ScanHardwareMgr;
        CBrightnessContrastRegulateParam m_BrightnessContrastRegulateParam = new CBrightnessContrastRegulateParam();
        int imgwidth = 0;
        int imgheight = 0;
        internal CBrightnessContrastRegulateParam BrightnessContrastRegulationParam { get => m_BrightnessContrastRegulateParam; set => m_BrightnessContrastRegulateParam = value; }
        private DateTime periodStart = DateTime.Now;
        public void SetPeriodStart(DateTime a_periodStart)
        {
            periodStart = a_periodStart;
        }
        public DateTime GetPeriodStart()
        {
            return periodStart;
        }
        public bool checkPeriodTime()
        {
            if(!m_BrightnessContrastRegulateParam.toRun)
            {
                return false;
            }
            if (m_BrightnessContrastRegulateParam.autoRegulateType == AutoRegulateType.EveryPeriod)
            {
                if ((DateTime.Now - periodStart).TotalMinutes > m_BrightnessContrastRegulateParam.period)
                {
                    periodStart = DateTime.Now;
                    return true;
                }
            }
            else if (m_BrightnessContrastRegulateParam.autoRegulateType == AutoRegulateType.EverySample)
            {
                return false;
            }
            return false;
        }
        public bool CheckIsSampleAutoRegulate()
        {
            if (!m_BrightnessContrastRegulateParam.toRun)
            {
                return false;
            }
            if (m_BrightnessContrastRegulateParam.autoRegulateType == AutoRegulateType.EverySample)
            {
                return true;
            }
            else
            { 
            return false;   
            }
        }
        public CBrightnessContrastAdjust(CMeasure a_msrThread)
        {
            m_pMsrThread = a_msrThread;
           
            log = NLog.LogManager.GetCurrentClassLogger();

             imgwidth = m_pMsrThread.m_pMeasureParam.GetDefaultParam().GetImageScanParam().GetImageResolutionSize().cx/2;
             imgheight = m_pMsrThread.m_pMeasureParam.GetDefaultParam().GetImageScanParam().GetImageResolutionSize().cy/2;

            m_BrightnessContrastRegulateParam = a_msrThread.m_pMeasureParam.GetDefaultParam().BrightnessContrastRegulationParam;

            m_SemHardwareMgr = SemController.GetSEMController();
            m_ScanHardwareMgr = ScanController.GetScanController();



        }
        private class SEMStateObject
        {
            private PointF pos;
            private double workingDistance;
          
            private double magnification;
            public PointF Pos { get => pos; set => pos = value; }
            public double WorkingDistance { get => workingDistance; set => workingDistance = value; }
       
            public double Magnification { get => magnification; set => magnification = value; }
            public double brightness { get; set; } 
            public double contrast { get; set; }
            public Size ScanImagesize { get; set; }

        }
        private class AutoResetSEMControl : IDisposable
        {
            CBrightnessContrastAdjust sm;
            private SEMStateObject semState = null;
            public AutoResetSEMControl(CBrightnessContrastAdjust s)
            {
                sm = s;
            }

            public SEMStateObject SemState
            {
                get => semState;
                set => semState = value;
            }

            public void Dispose()
            {
                if (semState != null)
                {
                   

                    sm.m_SemHardwareMgr.SetMagnification(semState.Magnification);
                    Thread.Sleep(100);
                    sm.MoveSEMToPoint(semState.Pos);
                    Thread.Sleep(100);
                    sm.m_SemHardwareMgr.SetWorkingDistance(semState.WorkingDistance);

                    sm.m_ScanHardwareMgr.SetImageSize(semState.ScanImagesize.Width,semState.ScanImagesize.Height);
                }
                log.Warn("Set SEM Exteral Off！");
                sm.m_SemHardwareMgr.SetScanExternal(false);
            }
        }

       
       public bool MoveSEMToPoint(System.Drawing.PointF a_poi)
        {
            // get SEM controller 
            var pSEMController = m_SemHardwareMgr;



            PointF a_SEMpt = new Point();

            CSEMStageData a_pCSEMStageData = m_pMsrThread.m_pMeasureParam.GetDefaultParam().GetStageDataParam();
            int hardWareDelay = a_pCSEMStageData.GetHardWareDelay();


            if (!a_pCSEMStageData.ConvertOTSToSEMCoord(a_poi, ref a_SEMpt))
            {
                return false;
            }

            //log.Info("Begin to move SEM stage to OTScoord:" + a_poi.X + "," + a_poi.Y);

            log.Info("Begin to move SEM stage to " + a_SEMpt.X + "," + a_SEMpt.Y);

            // move SEM to the position (rotation 0)
            if (!pSEMController.MoveSEMToPoint(a_SEMpt.X, a_SEMpt.Y))
            {
                log.Error("MoveSEMToPoint: failed to call MoveSEMToPoint method.");
                return false;
            }

            if (hardWareDelay > 0)
            {
                Thread.Sleep(hardWareDelay);
            }

            return true;
        }
        public void DoBrightnessContrastAdjust()
        {
            using (AutoResetSEMControl autoReset = new AutoResetSEMControl(this))
            {
                log.Warn("begin to do auto brightness and contrast adjust.");
                //----------memorize the state of sem
                var semstate = new SEMStateObject();

                double dMagnification = 0;
                    m_SemHardwareMgr.GetMagnification(ref dMagnification);
                double wd = 0;
                m_SemHardwareMgr.GetWorkingDistance(ref wd);
                ISemController sem = m_SemHardwareMgr;
                double posX = 0, posY = 0, posR = 0;
                sem.GetSemPositionXY(ref posX, ref posY, ref posR);

                CSEMStageData a_pCSEMStageData = m_pMsrThread.m_pMeasureParam.GetDefaultParam().GetStageDataParam();

                Point pos = new Point((int)posX, (int)posY);
                PointF otsPos = new Point(0, 0);

                if (!a_pCSEMStageData.ConvertSEMToOTSCoord(pos, ref otsPos))
                {
                    return;
                }
                semstate.Pos = otsPos;
                semstate.Magnification = dMagnification;
                semstate.WorkingDistance = wd;
                CSize size = m_pMsrThread.m_pMeasureParam.GetDefaultParam().GetImageScanParam().GetImageResolutionSize();
                semstate.ScanImagesize =new Size(size.cx, size.cy );

                autoReset.SemState =semstate;


                //-------------------------------------
                

               

                double dMag = m_BrightnessContrastRegulateParam.mag;
                // get SEM controller to set magnification and working distance
                if (!m_SemHardwareMgr.SetMagnification(dMag))
                {
                    log.Error("fail to set magnification.");

                }
                InitAcquireBSEParam();
                // move sem to std position
                if (!MoveSEMToPoint(m_BrightnessContrastRegulateParam.stdMaterialOTSPos))
                {
                    log.Error(" failed to move SEM to the field centre point.");
                  
                    return;
                }
           
                m_SemHardwareMgr.SetSemContrast(m_BrightnessContrastRegulateParam.initialContrast);
                m_SemHardwareMgr.SetSemBrightness(m_BrightnessContrastRegulateParam.initialBrightness);
                CBSEImgClr pBSEIamge = m_ScanHardwareMgr.AcquireBSEImage();
                if (pBSEIamge == null)
                {

                    log.Error("failed to acquire a BSE image.");

                    return;
                }
                int bright = 0, dark = 0;
                ProcessBSEImageToGetTheTwoGrayValue(pBSEIamge, ref bright, ref dark);
                var starttime = DateTime.Now;

                var desiredark = m_BrightnessContrastRegulateParam.darkphaseGrayvalue;
                var desirebright = m_BrightnessContrastRegulateParam.brightphaseGrayvalue;
                
                SortedDictionary<double, SEMStateObject> BCstatedic =new SortedDictionary<double, SEMStateObject>();

                while (Math.Abs( dark-desiredark)>3 || Math.Abs(bright-desirebright)>3)
                {
                   
                    //if (m_pMsrThread.IsMeasureStopped())
                    //{// measure stopped
                    //    log.Trace("measure thread is stopped.");
                        
                    //    return;
                    //}
                    double curbrightness = 0, curcontrast = 0; 
                   
                  

                    var error1 = desirebright - bright;
                    var error2 = desiredark - dark;
                    var varerror = Math.Pow(error1, 2) + Math.Pow(error2, 2);
                    SEMStateObject BcsemState = new SEMStateObject();
                    m_SemHardwareMgr.GetSemBrightness(ref curbrightness);
                    m_SemHardwareMgr.GetSemContrast(ref curcontrast);
                    BcsemState.brightness = curbrightness;
                    BcsemState.contrast = curcontrast;  
                    if(!BCstatedic.ContainsKey(varerror))
                    {
                        BCstatedic.Add(varerror, BcsemState);                       
                    }   
                    if((DateTime.Now-starttime).TotalSeconds>20)
                    {
                        log.Warn("Auto BC time out, stop the auto BC!");

                        if (BCstatedic.Count > 0)
                        {
                            var minerror = BCstatedic.Keys.Min();
                            var minstate = BCstatedic[minerror];
                            m_SemHardwareMgr.SetSemBrightness(minstate.brightness);
                            m_SemHardwareMgr.SetSemContrast(minstate.contrast);
                            log.Warn("Auto BC set brightness and contrast to:" + minstate.brightness + " " + minstate.contrast);
                        }   
                        break;
                    }
                    RegulateBrightnessAndContrast(bright, desirebright, dark, desiredark,curbrightness,curcontrast);

                    log.Info("two gray:" + bright.ToString() +" "+ dark.ToString());
                    Thread.Sleep(500);

                    // take BSE image for the fields
                     pBSEIamge = m_ScanHardwareMgr.AcquireBSEImage();

                    if (pBSEIamge == null)
                    {
                        log.Error(" failed to acquire a BSE image.");
                        return;
                    }
                    ProcessBSEImageToGetTheTwoGrayValue(pBSEIamge, ref bright, ref dark);

                }
                m_SemHardwareMgr.GetSemContrast(ref m_BrightnessContrastRegulateParam.initialContrast);
                m_SemHardwareMgr.GetSemBrightness(ref m_BrightnessContrastRegulateParam.initialBrightness);
                log.Warn("Auto BC done!");


            }
        }

        private void ProcessBSEImageToGetTheTwoGrayValue(CBSEImgClr pBSEIamge, ref int bright, ref int dark)
        {
            CImageHandler imageHandler = new CImageHandler();
            imageHandler.CalculateBrightnessDarkGrayByOtsu(pBSEIamge, ref bright, ref dark);
        }
        public void GetCurrentTwoProminentGray(ref int dark, ref int bright)
        {
            InitAcquireBSEParam();
           var pBSEIamge = m_ScanHardwareMgr.AcquireBSEImage();
            CImageHandler imageHandler = new CImageHandler();
            imageHandler.CalculateBrightnessDarkGrayByOtsu(pBSEIamge, ref bright, ref dark);

        }
        public void GetCurrentBrightnessAndContrast(ref double bright, ref double contrast)
        {

            m_SemHardwareMgr.GetSemBrightness(ref bright);
            m_SemHardwareMgr.GetSemContrast(ref contrast);
        }
        public void WriteBrightnessAndContrast(ref double bright, ref double contrast)
        {

            m_SemHardwareMgr.SetSemContrast(contrast);
            m_SemHardwareMgr.SetSemBrightness(bright);
        }
        void RegulateBrightnessAndContrast(double bri, double desirebri, double dark, double desiredark,double curbrightness,double curcontrast)
        {
           
          
            var amplifierScope =6;//the scope that sem brightness and contrast can be adjusted

            var error1 = desirebri - bri;
            var error2 = desiredark - dark;
          
            var error = error1 + error2;
            double brightness = curbrightness + (error/255)* amplifierScope;
            if (bri - dark > 10)
            {
                double expectcontrast = (desirebri - desiredark) / desirebri;
                double currentcontrast = (bri - dark) / bri;
                double gain= (expectcontrast-currentcontrast)/expectcontrast* amplifierScope;
                double contrast = curcontrast +gain;
                m_SemHardwareMgr.SetSemContrast(contrast);

            }
                
            
            m_SemHardwareMgr.SetSemBrightness(brightness);
        }

        bool InitAcquireBSEParam()
        {

            // get scan controller
            var pScanController = m_ScanHardwareMgr;


            if (!pScanController.Init())
            {
                log.Error(" failed to get scan control.");

                return false;
            }

            // set dwell time
            if (!pScanController.SetDwellTime(DwellTimeLevel.Low))
            {
                //log.Error("SetBSEParam: failed to set dwell time (%d) for bruker system.", nBrukerDwellTime);
                return false;
            }

            // set image size
            if (!pScanController.SetImageSize(imgwidth, imgheight))
            {
                // failed to set dwell time
                log.Error(" failed to set ImageSize");
                return false;
            }

            return true;
        }
    }
}