using Autofac;
using Bro.Common.Helper;
using Bro.Common.Interface;
using Bro.Common.Model;
using HalconDotNet;
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Design;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using static Bro.Common.Helper.EnumHelper;

namespace Bro.Common.Base
{
    public abstract class CameraBase : DeviceBase
    {
        private const int IMAGESETLIFETIME = 10;

        #region DeviceBase
        protected override void Start()
        {
            if (clearImageTimer == null)
            {
                clearImageTimer = new System.Threading.Timer((o) => { ClearImage(); }, null, 0, 1000 * 60 * 120);
            }

            //if (clearImageSetTimer == null)
            //{
            //    clearImageSetTimer = new System.Threading.Timer((o) => { ClearImageSetPeriodically(); }, null, 0, 1000 * IMAGESETLIFETIME);
            //}
        }

        protected override void Stop()
        {
            if (clearImageTimer != null)
            {
                clearImageTimer.Change(-1, -1);
                clearImageTimer.Dispose();
                clearImageTimer = null;
            }

            //if (clearImageSetTimer != null)
            //{
            //    clearImageSetTimer.Change(-1, -1);
            //    clearImageSetTimer.Dispose();
            //    clearImageSetTimer = null;
            //}
        }
        #endregion

        #region 配置相关
        public virtual CameraInitialConfigBase IConfig
        {
            get
            {
                return InitialConfig as CameraInitialConfigBase;
            }
        }

        public abstract IOperationConfig GetOperationConfigFromDevice();

        public abstract void UploadOperationConfig(IOperationConfig config);
        #endregion

        #region 图片相关
        public event Action<CameraBase, Bitmap, string> OnImageUpdated;

        public Action<CameraBase, HObject, string> OnHImageOutput { get; set; }
        public event Action OnCameraOpModeChanged;

        private EnumHelper.CameraOpMode opMode = CameraOpMode.SingleSnapShot;
        /// <summary>
        /// 运行模式 扫描or拍照
        /// </summary>
        public EnumHelper.CameraOpMode OpMode
        {
            get => opMode;
            set
            {
                if (opMode != value)
                {
                    opMode = value;
                    OnCameraOpModeChanged?.BeginInvoke(null, null);
                }

                if (opMode == CameraOpMode.ContinuousMode)
                {
                    Task.Run(() =>
                    {
                        while (CurrentState == DeviceState.DSOpen && opMode == CameraOpMode.ContinuousMode)
                        {
                            Snapshot();
                            ImageShowedHandle.WaitOne();
                        }
                    });
                }
            }
        }

        public AutoResetEvent ImageShowedHandle = new AutoResetEvent(false);

        //private Bitmap showImage;
        /// <summary>
        /// 输出显示的图片
        /// </summary>
        //public virtual Bitmap ShowImage
        //{
        //    get
        //    {
        //        return showImage;
        //    }
        //    set
        //    {
        //        try
        //        {
        //            showImage = value;

        //            if (showImage != null)
        //            {
        //                OnImageUpdated?.Invoke(this, new Bitmap(showImage));
        //            }
        //        }
        //        catch (Exception ex)
        //        {
        //            LogAsync(DateTime.Now, $"图片显示异常信息", ex.GetExceptionMessage());
        //        }
        //    }
        //}


        /// <summary>
        /// 一次性抓拍
        /// </summary>
        /// <returns></returns>
        public abstract void Snapshot();

        public virtual ImageSet Snapshot(IOperationConfig config)
        {
            OpMode = CameraOpMode.SingleSnapShot;

            ImageSet set = new ImageSet();
            CameraOprerationConfigBase opConfig = config as CameraOprerationConfigBase;
            set.ImageSaveOption.DataFrom(opConfig.ImageSaveOption);

            set.IsOriginSaved = !set.ImageSaveOption.IsSaveOriginImage;
            set.IsFitSaved = !set.ImageSaveOption.IsSaveFitImage;
            set.IsAddtionalSaved = !string.IsNullOrWhiteSpace(set.ImageSaveOption.AddtionalSaveType);
            set.OnImageSetTimeout += ImageSet_OnImageSetTimeout;
            _imageSetList.Add(set);

            return set;
        }

        /// <summary>
        /// 释放图片数据
        /// </summary>
        protected virtual void FreeImage()
        {
            //if (ShowImage != null)
            //{
            //    ShowImage.Dispose();
            //}
        }
        #endregion

        #region 基元处理
        public event Action<CameraBase, List<IShapeElement>, string> OnElementsUpdated;
        #endregion

        #region 图片缓存/保存
        readonly ConcurrentBag<ImageSet> _imageSetList = new ConcurrentBag<ImageSet>();

        public void NewImageSet(ImageSet set)
        {
            set.IsOriginSaved = !set.ImageSaveOption.IsSaveOriginImage;
            set.IsFitSaved = !set.ImageSaveOption.IsSaveFitImage;
            set.IsAddtionalSaved = !string.IsNullOrWhiteSpace(set.ImageSaveOption.AddtionalSaveType);
            set.OnImageSetTimeout += ImageSet_OnImageSetTimeout;
            _imageSetList.Add(set);
        }

        //public virtual async void UpdateFitElements(List<IShapeElement> eleList, string imgSetId)
        //{
        //    await Task.Run(() =>
        //    {
        //        OnElementsUpdated?.BeginInvoke(this, eleList, imgSetId, null, null);
        //    });
        //}

        public virtual async void SaveOriginImage(Bitmap map, Bitmap showImage, string imgSetId)
        {
            Task.Run(() =>
            {
                OnImageUpdated?.Invoke(this, showImage, imgSetId);
            });

            ImageSet set = _imageSetList.FirstOrDefault(u => u.Id == imgSetId);

            if (set == null)
                return;

            set.Image = map;

            await Task.Run(() =>
            {
                lock (set.SaveLock)
                {
                    if (set.ImageSaveOption.IsSaveOriginImage && !set.IsOriginSaved)
                    {
                        string imgDir = CheckImageDirectory(set.ImageSaveOption.ImageSaveSubDirectory, "Origin");

                        try
                        {
                            SaveImageByNameAndType(map, set.Id, set.ImageSaveOption.ImageFormat, imgDir);
                        }
                        catch (Exception ex)
                        {
                            LogAsync(DateTime.Now, $"{set.Id}原图保存失败", ex.GetExceptionMessage());
                        }
                        //finally
                        //{
                        //    set.IsOriginSaved = true;
                        //}
                    }
                    set.IsOriginSaved = true;
                    ClearImageSet(set);
                }
            });
        }

        public virtual async void SaveFitImage(List<IShapeElement> eleList, string imgSetId)
        {
            if (eleList.Count > 0)
                OnElementsUpdated?.BeginInvoke(this, eleList, imgSetId, null, null);

            ImageSet set = _imageSetList.FirstOrDefault(u => u.Id == imgSetId);
            if (set == null)
                return;

            if (eleList.Count <= 0)
            {
                set.IsFitSaved = true;
                return;
            }

            //set.IsInvokeSaveFit = true;
            await Task.Run(() =>
            {
                lock (set.SaveLock)
                {
                    if (set.ImageSaveOption.IsSaveFitImage && !set.IsFitSaved)
                    {
                        string imgDir = CheckImageDirectory(set.ImageSaveOption.ImageSaveSubDirectory, "FitResult");

                        while (set.Image == null)
                        {
                            Thread.Sleep(50);
                        }

                        try
                        {
                            Bitmap map = new Bitmap(set.Image.Width, set.Image.Height);
                            using (Graphics g = Graphics.FromImage(map))
                            {
                                g.DrawImage(set.Image, 0, 0);

                                eleList.ForEach(e =>
                                {
                                    e.State = ElementState.Normal;
                                    e.Draw(g);
                                });
                            }

                            SaveImageByNameAndType(map, set.Id, set.ImageSaveOption.ImageFormat, imgDir);
                        }
                        catch (Exception ex)
                        {
                            LogAsync(DateTime.Now, $"{set.Id}拟合图片保存失败", ex.GetExceptionMessage());
                        }
                        //finally
                        //{
                        //    set.IsFitSaved = true;
                        //}
                    }
                    set.IsFitSaved = true;
                    ClearImageSet(set);
                }
            });
        }

        /// <summary>
        /// 保存特定类型图片，例如NG图片
        /// </summary>
        /// <param name="prefix">图片类型说明 例如“NG”</param>
        /// <param name="imgSetId">图片ID</param>
        public virtual async void SaveSelectedImage(string prefix, string imgSetId)
        {
            await Task.Run(() =>
            {
                ImageSet set = _imageSetList.FirstOrDefault(u => u.Id == imgSetId);
                if (set == null)
                    return;

                lock (set.SaveLock)
                {
                    if (set.ImageSaveOption.AddtionalSaveType.Contains(prefix) && !set.IsAddtionalSaved)
                    {
                        string imgDir = CheckImageDirectory(set.ImageSaveOption.ImageSaveSubDirectory, prefix);

                        while (set.Image == null)
                        {
                            Thread.Sleep(50);
                        }

                        try
                        {
                            SaveImageByNameAndType(set.Image, set.Id, set.ImageSaveOption.ImageFormat, imgDir);

                            //set.IsNGSaved = true;
                        }
                        catch (Exception ex)
                        {
                            LogAsync(DateTime.Now, $"{set.Id}{prefix}图片保存失败", ex.GetExceptionMessage());
                        }
                        //finally
                        //{
                        //    set.IsAddtionalSaved = true;
                        //}
                    }
                    set.IsAddtionalSaved = true;
                    ClearImageSet(set);
                }
            });
        }

        private string CheckImageDirectory(string subDir, string prefix)
        {
            if (string.IsNullOrWhiteSpace(subDir))
            {
                subDir = DateTime.Now.ToString("yyyyMMdd");
            }
            else
            {
                subDir = Path.Combine(DateTime.Now.ToString("yyyyMMdd"), subDir);
            }

            string imgDir = Path.Combine(IConfig.ImgDirectory, subDir, prefix);

            DirectoryInfo dir = new DirectoryInfo(imgDir);
            if (!dir.Exists)
            {
                dir.Create();
            }

            return imgDir;
        }

        private void SaveImageByNameAndType(Bitmap map, string imageName, ImageFormat imgFormat, string imageDir)
        {
            string filePath = Path.Combine(imageDir, $"{imageName}.{imgFormat.ToString().ToLower()}");
            map.Save(filePath, imgFormat);
        }

        //private Timer clearImageSetTimer = null;

        public void ClearImageSet(ImageSet set)
        {
            try
            {
                //if ((!set.ImageSaveOption.IsSaveOriginImage || set.IsOriginSaved)
                //    && (!set.ImageSaveOption.IsSaveFitImage || set.IsFitSaved)
                //    && (!set.ImageSaveOption.IsSaveNGImage || set.IsNGSaved))
                if (set.IsOriginSaved && set.IsFitSaved && set.IsAddtionalSaved)
                {
                    _imageSetList.TryTake(out set);
                    set.Dispose();
                    //LogAsync(DateTime.Now, $"移除图片信息，当前缓存数量：{_imageSetList.Count}", "");
                }
                //bool flag = false;

                //do
                //{
                //    flag = _imageSetList.TryTake(out set);
                //} while (!flag);
                //set.Dispose();

                //LogAsync(DateTime.Now, $"移除图片信息，当前缓存数量：{_imageSetList.Count}", "");
            }
            catch (Exception ex)
            {
                LogAsync(DateTime.Now, $"清理图片缓存异常，当前缓存数量{_imageSetList.Count}", ex.GetExceptionMessage());
            }
        }

        public void ClearImageSet(string imgSetId)
        {
            ImageSet set = _imageSetList.First(u => u.Id == imgSetId);
            if (set != null)
                ClearImageSet(set);
        }

        private void ImageSet_OnImageSetTimeout(ImageSet set)
        {
            ClearImageSet(set);
        }

        //private void ClearImageSetPeriodically()
        //{
        //    try
        //    {
        //        DateTime dt = DateTime.Now;
        //        foreach (ImageSet set in _imageSetList)
        //        {
        //            if ((dt - set.InitialTime).TotalSeconds > IMAGESETLIFETIME)
        //            {
        //                ImageSet temp = set;
        //                _imageSetList.TryTake(out temp);
        //                temp.Dispose();
        //            }
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        LogAsync(DateTime.Now, $"定时清理图片缓存异常，当前缓存数量{_imageSetList.Count}", ex.GetExceptionMessage());
        //    }
        //}
        #endregion

        #region 定时清理图片
        static readonly object _clearImageLock = new object();
        protected void ClearImage()
        {
            if (IConfig.SaveImageDayLimit > 0)
            {
                lock (_clearImageLock)
                {
                    LogAsync(DateTime.Now, $"ClearImage Start", "");

                    try
                    {
                        DirectoryInfo dirImage = new DirectoryInfo(IConfig.ImgDirectory);
                        if (dirImage.Exists)
                        {
                            DateTime dtNow = DateTime.Now;

                            var folderList = dirImage.GetDirectories().ToList();

                            folderList = folderList.Where(f =>
                            {
                                if (f.Name.Length < 8)
                                    return false;

                                DateTime dt = DateTime.Now;
                                string name = f.Name.Substring(0, 4) + "/" + f.Name.Substring(4, 2) + "/" + f.Name.Substring(6);
                                return DateTime.TryParse(name, out dt);
                            }).OrderBy(u => u.Name).ToList();

                            if (folderList.Count > IConfig.SaveImageDayLimit)
                            {
                                folderList.Take(folderList.Count - IConfig.SaveImageDayLimit).ToList().ForEach(f =>
                                {
                                    f.Delete(true);
                                });
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        LogAsync(DateTime.Now, $"ClearImage异常", ex.GetExceptionMessage());
                    }

                    LogAsync(DateTime.Now, $"ClearImage Done", "");
                }
            }
        }

        private System.Threading.Timer clearImageTimer = null;
        #endregion
    }

    #region Config
    [Device("Camera", "相机取像配置", EnumHelper.DeviceAttributeType.OperationConfig)]
    public class CameraOprerationConfigBase : OperationConfigBase, INotifyPropertyChanged, IComplexDisplay, IHalconToolPath
    {
        private float exposure = 0;
        /// <summary>
        /// 曝光
        /// </summary>
        [Category("取像配置")]
        [Description("曝光")]
        [DisplayName("曝光")]
        public float Exposure
        {
            get => exposure;
            set
            {
                if (exposure != value)
                {
                    exposure = value;
                    PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Exposure"));
                }
            }
        }

        /// <summary>
        /// 增益
        /// </summary>
        [Category("取像配置")]
        [Description("增益")]
        [DisplayName("增益")]
        public float Gain { get; set; }

        [Category("取像配置")]
        [Description("曝光修改后等待时间，单位ms。针对部分场景确保曝光修改及时生效。")]
        [DisplayName("曝光等待")]
        public int ExposureWaitTime { get; set; }

        [Category("取像配置")]
        [Description("拍摄后曝光值。可在一次拍摄后将曝光修改为下次拍摄的曝光值，节约曝光生效时间。")]
        [DisplayName("拍摄后曝光")]
        public float ExposureAfterSnap { get; set; }

        [Category("算法配置")]
        [Description("算法路径")]
        [DisplayName("算法路径")]
        [Editor(typeof(FileDialogEditor), typeof(UITypeEditor))]
        public string AlgorithemPath { get; set; } = "";

        [Category("保存设置")]
        [Description("图片保存配置")]
        [DisplayName("图片保存配置")]
        [TypeConverter(typeof(ComplexObjectConvert))]
        [Editor(typeof(PropertyObjectEditor), typeof(UITypeEditor))]
        public ImageSaveOption ImageSaveOption { get; set; } = new ImageSaveOption();

        [Category("延时配置")]
        [Description("拍照前延时")]
        [DisplayName("前延时")]
        public int DelayBefore { get; set; } = 0;

        [Category("延时配置")]
        [Description("拍照后延时")]
        [DisplayName("后延时")]
        public int DelayAfter { get; set; } = 0;

        public event PropertyChangedEventHandler PropertyChanged;

        public string GetDisplayText()
        {
            return $"曝光：{Exposure.ToString("f2")} 算法：{AlgorithemPath}";
        }

        public List<string> GetHalconToolPathList()
        {
            return new List<string>() { AlgorithemPath };
        }
    }

    public class CameraInitialConfigBase : InitialConfigBase
    {
        [Category("驱动类型")]
        [Description("驱动类型")]
        [DisplayName("驱动类型")]
        [Browsable(true)]
        [TypeConverter(typeof(CameraTypeConverter))]
        public override string DriverType { get; set; }

        [Category("相机设置")]
        [Description("相机序列号")]
        [DisplayName("序列号")]
        [TypeConverter(typeof(HalconSerialNumConverter))]
        public virtual string SerialNum { get; set; }

        [Category("相机设置")]
        [Description("相机IP地址")]
        [DisplayName("相机IP地址")]
        public string CameraIP { get; set; }

        [Category("相机设置")]
        [Description("上位机IP地址")]
        [DisplayName("上位机IP地址")]
        public string ComputerIP { get; set; }

        [Category("保存设置")]
        [Description("图片保存目录")]
        [DisplayName("图片保存目录")]
        [Editor(typeof(FoldDialogEditor), typeof(UITypeEditor))]
        public string ImgDirectory { get; set; } = @"../Images";

        [Category("保存设置")]
        [Description("图片保存天数")]
        [DisplayName("图片保存天数")]
        public int SaveImageDayLimit { get; set; } = 0;

        [Category("保存设置")]
        [Description("图片保存默认配置，主要用于硬触发等没有明确操作配置说明的图片保存")]
        [DisplayName("图片保存默认配置")]
        [TypeConverter(typeof(ComplexObjectConvert))]
        [Editor(typeof(PropertyObjectEditor), typeof(UITypeEditor))]
        public ImageSaveOption ImageSaveOption { get; set; } = new ImageSaveOption();

        [Category("拍摄设置")]
        [Description("默认曝光值，相机开启后就设置该曝光值")]
        [DisplayName("默认曝光值")]
        public float DefaultExposure { get; set; }
    }
    #endregion

    #region Converter & Editor
    public class HalconSerialNumConverter : ComboBoxItemTypeConvert
    {
        public override Hashtable GetConvertHash(ITypeDescriptorContext context)
        {
            Hashtable table = new Hashtable();
            HTuple deviceList = null;

            AutoResetEvent handle = new AutoResetEvent(false);

            Task.Run(() =>
            {
                HOperatorSet.InfoFramegrabber("GigEVision", "info_boards", out HTuple deviceInfo, out deviceList);
                handle.Set();
            });

            handle.WaitOne(5000);
            if (deviceList != null)
            {
                for (int i = 0; i < deviceList.Length; i++)
                {
                    var list = deviceList[i].S.Split(new char[] { ':', '|' }, StringSplitOptions.RemoveEmptyEntries);

                    table[list[1].Trim()] = list[3].Trim() + "--" + list[1].Trim();
                }
            }

            return table;
        }
    }

    public class CameraTypeConverter : DeviceTypeConverter<CameraBase>
    {
    }

    public class CameraInitialConfigEditor : DeviceInitialConfigEditor<CameraInitialConfigBase>
    {
    }

    public class CameraDeviceConverter : ComboBoxItemTypeConvert
    {
        public override Hashtable GetConvertHash(ITypeDescriptorContext context)
        {
            Hashtable table = new Hashtable();
            using (var scope = GlobalVar.Container.BeginLifetimeScope())
            {
                var config = scope.Resolve<IProcessConfig>();

                config.CameraConfigCollection.ForEach(camera =>
                {
                    table[camera.Id] = camera.Name;
                });
            }

            return table;
        }
    }
    #endregion

    #region 辅助类
    public class ImageSaveOption : IComplexDisplay
    {
        [Category("图片保存")]
        [Description("图片保存文件夹子文件夹名称")]
        [DisplayName("子目录")]
        public string ImageSaveSubDirectory { get; set; }

        [Category("图片保存")]
        [Description("是否保存原始图片")]
        [DisplayName("保存原始图片")]
        public bool IsSaveOriginImage { get; set; } = true;

        [Category("图片保存")]
        [Description("图片保存格式")]
        [DisplayName("图片保存格式")]
        public ImageFormat ImageFormat { get; set; } = ImageFormat.Jpeg;

        [Category("图片保存")]
        [Description("是否保存拟合/结果图片")]
        [DisplayName("保存拟合图片")]
        public bool IsSaveFitImage { get; set; } = false;

        //[Category("图片保存")]
        //[Description("是否保存NG图片")]
        //[DisplayName("保存NG图片")]
        //public bool IsSaveNGImage { get; set; } = false;
        [Category("图片保存")]
        [Description("附加保存图片类型，多类型使用\",\"间隔。如要保存OK和NG图片，填写\"OK,NG\"")]
        [DisplayName("附加保存图片类型")]
        public string AddtionalSaveType { get; set; } = "";

        public string GetDisplayText()
        {
            //return $"子目录：{ImageSaveSubDirectory}{(IsSaveOriginImage ? " 保存原图" : "")}{(string.IsNullOrWhiteSpace(AddtionalSaveType) ? "" : ("保存"{AddtionalSaveType}"图片"))} {(IsSaveFitImage ? " 保存拟合图片" : "")}";

            string txt = "";
            if (!string.IsNullOrWhiteSpace(ImageSaveSubDirectory))
            {
                txt += $"子目录：{ImageSaveSubDirectory}";
            }

            if (IsSaveOriginImage)
            {
                txt += " 保存原图";
            }

            if (!string.IsNullOrWhiteSpace(AddtionalSaveType))
            {
                txt += $" 保存{AddtionalSaveType}图片";
            }

            if (IsSaveFitImage)
            {
                txt += " 保存拟合图片";
            }

            return txt;
        }
    }

    public class ImageSet : IDisposable
    {
        public DateTime InitialTime { get; set; } = DateTime.Now;

        private string id = "";
        public string Id
        {
            get
            {
                if (string.IsNullOrWhiteSpace(id))
                {
                    id = InitialTime.ToString("HHmmssfff");
                }
                return id;
            }
        }

        public HImage HImage { get; set; } = null;

        public Bitmap Image { get; set; } = null;

        //public List<ElementBase> EleList { get; set; } = new List<ElementBase>();

        //public OutputResult Result { get; set; } = OutputResult.OK;

        #region Save Option & Result
        public ImageSaveOption ImageSaveOption { get; set; } = new ImageSaveOption();

        public bool IsOriginSaved { get; set; } = false;

        //public bool IsInvokeSaveFit { get; set; } = false;
        public bool IsFitSaved { get; set; } = false;
        //public bool IsInvokeSaveNG { get; set; } = false;
        public bool IsAddtionalSaved { get; set; } = false;

        public object SaveLock = new object();

        public event Action<ImageSet> OnImageSetTimeout;
        private Timer autoDisposeTimer = null;

        private void OnAutoDispose(object state)
        {
            OnImageSetTimeout?.Invoke(this);
        }

        public ImageSet()
        {
            autoDisposeTimer = new Timer(OnAutoDispose, null, -1, 10 * 1000);
        }

        public void Dispose()
        {
            autoDisposeTimer.Change(-1, -1);
            autoDisposeTimer.Dispose();

            Image?.Dispose();
            Image = null;

            HImage?.Dispose();
            HImage = null;
        }
        #endregion
    }
    #endregion
}