using EmbedIO.WebSockets;
using GeoSigma.SigmaDrawerUtil;
using GeoSigmaDrawLib;
using KevDrawServer.Drawer;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Net.WebSockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace KevDrawServer
{
    /// <summary>
    /// 图形操作类.
    /// </summary>
    public class EventResponse
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="EventResponse"/> class.
        /// </summary>
        /// <param name="drawer">The drawer.</param>
        /// <param name="context">The context.</param>
        public EventResponse(WebDrawer drawer, IWebSocketContext context)
        {
            Drawer = drawer;
            Context = context;
        }

        /// <summary>
        /// Gets or sets 图形操作实例.
        /// </summary>
        public WebDrawer Drawer { get; set; } = null;
        /// <summary>
        /// Gets or sets 连接上下文.
        /// </summary>
        public IWebSocketContext Context { get; set; } = null;

        private string imageFile = "temp/K1.png";

        public JsEvent ExcuteOperator(string evtentType, Dictionary<string, object> keyValues)
        {
            if(this.Drawer == null)
            {
                return null;
            }
            object objDrawerWidth = null;
            object objDrawerHeight = null;
            if (keyValues != null)
            {
                keyValues.TryGetValue("width", out objDrawerWidth);
                keyValues.TryGetValue("height", out objDrawerHeight);
            }

            if (objDrawerWidth != null && objDrawerHeight != null)
            {
                double dDrawerWidth = 0;
                double dDrawerHeight = 0;
                double.TryParse($"{objDrawerWidth}", out dDrawerWidth);
                double.TryParse($"{objDrawerHeight}", out dDrawerHeight);
                if(dDrawerWidth>0&& dDrawerHeight > 0)
                {
                    this.Drawer.DrawerSize = new Size((int)dDrawerWidth, (int)dDrawerHeight);
                }
            }

            JsEvent evtResult = null;
            switch (evtentType)
            {
                case "OpenFile":
                    evtResult = ShowImg();
                    break;
                case "ZoomIn":
                    evtResult = ZoomIn(keyValues);
                    break;
                case "ZoomOut":
                    evtResult = ZoomOut(keyValues);
                    break;
                case "ViewAll":
                    evtResult = ViewAll(keyValues);
                    break;
                case "Refresh":
                    evtResult = ReFresh();
                    break;
                case "Center":
                    evtResult = DrawCenter();
                    break;
                case "ViewPan":
                    evtResult = ViewPan(keyValues);
                    break;
                case "ViewWindow":
                    evtResult = ViewWindow(keyValues);
                    break;
                case "Redraw":
                    evtResult = Redraw();
                    break;
                case "MouseDown":
                    //double dX = Convert.ToDouble(dictionary["x"]);
                    //double dY = Convert.ToDouble(dictionary["y"]);
                    //await ClickImageAsync(dX, dY);
                    break;
                case "LButtonUp":
                    double dUpX = Convert.ToDouble(keyValues["x"]);
                    double dUpY = Convert.ToDouble(keyValues["y"]);
                    int nKeyCode = 0;
                    if(keyValues["keyCode"] != null)
                    {
                        nKeyCode = Convert.ToInt32(keyValues["keyCode"]);
                    }
                    evtResult = LButtonUp(dUpX, dUpY, nKeyCode);
                    break;
                case "MouseMove":
                    double dMoveX = Convert.ToDouble(keyValues["x"]);
                    double dMoveY = Convert.ToDouble(keyValues["y"]);
                    int nHandle = Convert.ToInt32(keyValues["handleIndex"]);
                    evtResult = MouseMove(dMoveX, dMoveY);
                    break;
                case "DragElement":
                    double dDragX = Convert.ToDouble(keyValues["x"]);
                    double dDragY = Convert.ToDouble(keyValues["y"]);
                    evtResult = this.TranslateElements(dDragX, dDragY);
                    break;
                case "SelectMouseDown":
                    double dX = Convert.ToDouble(keyValues["x"]);
                    double dY = Convert.ToDouble(keyValues["y"]);
                    //await ClickImageAsync(dX, dY);
                    evtResult = SelectLButtonDown(dX, dY);
                    break;
                case "SelectMouseUp":
                    double dSelectUpX = Convert.ToDouble(keyValues["x"]);
                    double dSelectUpY = Convert.ToDouble(keyValues["y"]);
                    int nMouseUpKeyCode = 0;
                    if (keyValues["keyCode"] != null)
                    {
                        nMouseUpKeyCode = Convert.ToInt32(keyValues["keyCode"]);
                    }
                    evtResult = SelectMouseUp(dSelectUpX, dSelectUpY, nMouseUpKeyCode);
                    break;
                case "GetElementProperty":
                    evtResult = GetSelectElementProperty();
                    break;
                case "SetElementProperty":
                    long elementID = 0;
                    string strPropertyData = @"";
                    strPropertyData = string.Empty;
                    if (keyValues.ContainsKey("elementID"))
                    {
                        long.TryParse($"{keyValues["elementID"]}", out elementID);
                    }
                    if (keyValues.ContainsKey("data"))
                    {
                        strPropertyData = $"{keyValues["data"]}";
                    }
                    evtResult = SetSelectElementProperty(strPropertyData);
                    break;
                case "WellGroupClone":
                    long wellGroupID = 0;
                    if (keyValues.ContainsKey("elementID"))
                    {
                        long.TryParse($"{keyValues["elementID"]}", out elementID);
                    }
                    evtResult = SelectWellGroupClone(wellGroupID);
                    break;
                case "GetWellGroupData":
                    evtResult = SelectGetWellGroupData();
                    break;
                case "SaveFile":
                    evtResult = SaveFile();
                    break;
                case "GetLayers":
                    evtResult =  GetLayersJson(); // GetLayers();
                    break;
                case "GetLayersNorm":
                    evtResult = GetLayers(); // GetLayers();
                    break;
                case "GetElementsCount":
                    evtResult = GetElementsCount(); // GetLayers();
                    break;
                case "SetLayersStatus":
                    string strData = $"{ keyValues["layerData"]}";
                    evtResult = SetLayersStatus(strData);
                    break;
                case "DeleteLayers":
                    string strLayersData = $"{keyValues["layers"]}";
                    int nWithChilden = 1;
                    if (keyValues.ContainsKey("widthChild"))
                    {
                        Int32.TryParse($"{keyValues["widthChild"]}", out nWithChilden);
                    }
                    evtResult = this.DeleteLayers(strLayersData, nWithChilden == 1);
                    break;
                case "ClearAll":
                    int needUndo = 0;
                    string strNeedUndo = $"{keyValues["needUndo"]}";
                    if (!string.IsNullOrEmpty(strNeedUndo))
                    {
                        int.TryParse(strNeedUndo, out needUndo);
                    }
                    evtResult = this.ClearAll(needUndo == 1 ? true : false);
                    break;
                case "AddBufferData":
                    string strBuffer = $"{ keyValues["bufferData"]}";
                    evtResult = AddBufferData(strBuffer);
                    break;
                case "AddBasicDraw":
                    {
                        string strDrawBuffer = $"{ keyValues["bufferData"]}";
                        string strLayer = $"{ keyValues["layer"]}";
                        bool bCreateBlock = Convert.ToBoolean(keyValues["CreateBlock"]);
                        evtResult = InsertDataBottom(strDrawBuffer, strLayer, bCreateBlock);
                    }
                    break;
                case "MergeFile": // 合并图件
                    string strFileName = $"{ keyValues["fileName"]}";
                    evtResult = MergeFile(strFileName);
                    break;
                case "QueryRangeScreen2Real":
                    double dScreenStartX = Convert.ToDouble(keyValues["startX"]);
                    double dScreenEndX = Convert.ToDouble(keyValues["endX"]);
                    double dScreenStartY = Convert.ToDouble(keyValues["startY"]);
                    double dScreenEndY = Convert.ToDouble(keyValues["endY"]);
                    evtResult = QueryRangeScreen2RealX(dScreenStartX, dScreenEndX, dScreenStartY, dScreenEndY);
                    break;
                case "CreateFavorableArea":
                    string strToken = $"{keyValues["token"]}";
                    var drawer = GlobalSession.GetData(strToken);
                    string filename = Path.GetFileNameWithoutExtension(((WebDrawer)drawer).DrawFileName);
                    double min = Convert.ToDouble(keyValues["min"]);
                    double max = Convert.ToDouble(keyValues["max"]);
                    string layer = Convert.ToString(keyValues["layer"]);
                    string dir = keyValues["dir"].ToString();
                    evtResult = CreateFavorableArea(dir,filename, layer, min, max);
                    break;
                case "MergeFavorableArea":
                    strToken = $"{keyValues["token"]}";
                    drawer = GlobalSession.GetData(strToken);
                    filename = Path.GetFileName(((WebDrawer)drawer).DrawFileName);
                    dir = keyValues["dir"].ToString();
                    strFileName = $"{ keyValues["fileName"]}";
                    evtResult = MergeFavorableArea(dir, filename, strFileName);
                    break;
                default:
                    break;
            }
            return evtResult;
        }

        public JsEvent ShowImg(string file = "", int w = 0, int h = 0, bool sendContent = false)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            Bitmap bmp = null;

            if (w != 0 && h != 0)
            {
                this.Drawer.DrawerSize = new Size(w, h);
            }
            
            bmp = new Bitmap(this.Drawer.DrawerSize.Width, this.Drawer.DrawerSize.Height);
            bmp.SetResolution(bmp.HorizontalResolution, bmp.VerticalResolution);
            using (Graphics g = Graphics.FromImage(bmp))
            {
                this.Drawer.OnPaint(g);
               
            }
            
            JsEvent jsEvent = CreateImgEvent(bmp, "", sendContent);
            jsEvent.Success = true;
            return jsEvent;
        }
        public JsEvent ZoomIn(Dictionary<string, object> keyValues)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            this.Drawer.ZoomIn();

            return ShowImg();
        }
        public JsEvent ZoomOut(Dictionary<string, object> keyValues)
        {
            //this.drawer = GetCurrentDrawer();
            if (this.Drawer == null)
            {
                return null;
            }

            this.Drawer.ZoomOut();
            return ShowImg();
        }
        public JsEvent ViewAll(Dictionary<string, object> keyValues)
        {
            if (this.Drawer == null)
            {
                return null;
            }

            this.Drawer.ViewAll();

            return ShowImg();
        }

        /// <summary>
        /// 移动浏览
        /// </summary>
        /// <returns></returns>
        public JsEvent ViewPan(Dictionary<string, object> keyValues)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            double dStartX = Convert.ToDouble(keyValues["startX"]);
            double dStartY = Convert.ToDouble(keyValues["startY"]);
            double dEndX = Convert.ToDouble(keyValues["endX"]);
            double dEndY = Convert.ToDouble(keyValues["endY"]);

            Bitmap bmp = null;
            bmp = this.Drawer.ViewOperatorPan(dStartX, dStartY, dEndX, dEndY);
            return CreateImgEvent(bmp);
        }
        /// <summary>
        /// 移动浏览
        /// </summary>
        /// <returns></returns>
        public JsEvent ViewWindow(Dictionary<string, object> keyValues)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            double dStartX = Convert.ToDouble(keyValues["startX"]);
            double dStartY = Convert.ToDouble(keyValues["startY"]);
            double dEndX = Convert.ToDouble(keyValues["endX"]);
            double dEndY = Convert.ToDouble(keyValues["endY"]);
            
            Bitmap bmp = this.Drawer.ViewOperatorWindow(dStartX, dStartY, dEndX, dEndY);
            return CreateImgEvent(bmp);
        }

        public JsEvent LButtonUp(double x, double y, int keyCode)
        {
            if (this.Drawer == null)
            {
                return null; ;
            }
            Bitmap bmp = this.Drawer.LButtonUp(x, y, keyCode);
            return CreateImgEvent(bmp);
        }
        public JsEvent MouseMove(double x, double y)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            int result = 0;

            result = this.Drawer.MouseMove(x, y);

            //Console.WriteLine($"MouseMove hanle:{result}");
            JsEvent responseEvent = new JsEvent("SelectHandle")
            {
                Data = result,
            };
            return responseEvent;
        }
        public JsEvent TranslateElements(double x, double y)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            try
            {
                Bitmap bmp = this.Drawer.TranslateElements(x, y);
                return CreateImgEvent(bmp);
            }
            catch (EmbedIO.WebSockets.WebSocketException ex)
            {
                //Console.WriteLine($"WebSocketException: {ex.Message}");
            }
            catch (Exception ex)
            {
                //Console.WriteLine($"Exception: {ex.Message}");
            }
            return null;
        }
        public JsEvent SelectLButtonDown(double x, double y)
        {
            if (this.Drawer == null)
            {
                return null;
            }
            Bitmap bmp = this.Drawer.OnLButtonDown(x, y);

            if (bmp != null)
            {
                bmp.MakeTransparent(Color.White);
                Point pt = this.Drawer.CacheImgLocation;

                string strFile = string.Empty;
                try
                {
                    strFile = Path.Combine(WebConfig.HtmlRoot, imageFile);
                    bmp.Save(strFile);
                }
                catch (Exception ex)
                {
                    //Console.WriteLine($"SendImg: {ex.Message}");
                    return null;
                }
                string strEventName = "DragElement";

                var responseEvent = new JsEvent(strEventName);
                Dictionary<string, object> keyValues = new Dictionary<string, object>();
                keyValues.Add("Data", imageFile);
                keyValues.Add("ImgLeft", pt.X);
                keyValues.Add("ImgTop", pt.Y);
                responseEvent.Data = keyValues;
                return responseEvent;
            }
            return null;
        }
        /// <summary>
        /// 选中对象
        /// </summary>
        /// <returns></returns>
        public JsEvent SelectMouseUp(double endX, double endY, int keyCode)
        {
            Bitmap bmp = this.Drawer.LButtonUp(endX, endY, keyCode);
            return CreateImgEvent(bmp);
        }
        /// <summary>
        /// 井组克隆.
        /// </summary>
        /// <param name="elementID">The element i d.</param>
        /// <returns>A JsEvent.</returns>
        public JsEvent SelectWellGroupClone(long elementID=0)
        {
            bool bSuccess = this.Drawer.SelectWellGroupClone(elementID);
            if (bSuccess == true)
            {
                return Redraw();
            }
            return null;
        }
        /// <summary>
        /// 获得选中的井组相关数据
        /// </summary>
        /// <returns></returns>
        public JsEvent SelectGetWellGroupData()
        {
            string strWellGroupData = this.Drawer.SelectGetWellGroupData();
            var responseEvent = new JsEvent("WellGroupData");
            responseEvent.Data = strWellGroupData;
            return responseEvent;
        }
        /// <summary>
        /// 设置选中图元的属性
        /// </summary>
        /// <param name="propertyData"></param>
        /// <returns></returns>
        public JsEvent SetSelectElementProperty(string propertyData)
        {
            bool success = this.Drawer.SetElementProperty(propertyData);
            if(success == false)
            {
                return null;
            }
            return Redraw();
        }
        public JsEvent GetSelectElementProperty()
        {
            string strElementData = string.Empty;
            long lPosition = 0;
            this.Drawer.GetSelectedElement(ref strElementData, ref lPosition);
            var responseEvent = new JsEvent("ElementProperty");
            Dictionary<string, object> keyValues = new Dictionary<string, object>();
            keyValues.Add("ElementID", lPosition);
            keyValues.Add("ElementData", strElementData);
            responseEvent.Data = keyValues;
            return responseEvent;
        }
        /// <summary>
        /// 保存图形.
        /// </summary>
        /// <returns>A JsEvent.</returns>
        public JsEvent SaveFile()
        {
            bool bSuccess = this.Drawer.SaveFile();
            var responseEvent = new JsEvent("Save");
            responseEvent.Data = bSuccess;

            return responseEvent;
        }

        private JsEvent CreateImgEvent(Bitmap bmp, string eventName = "", bool sendContent = false)
        {
            if(bmp == null)
            {
                return null;
            }
            byte[] image = null;
            string strFile = string.Empty;
            try
            {
                if (sendContent == false)
                {
                    strFile = Path.Combine(WebConfig.HtmlRoot, imageFile);
                    bmp.Save(strFile);
                }
                else
                {
                    image = ConvertBitmapToByteArray(bmp);
                }
            }
            catch (Exception ex)
            {
                //Console.WriteLine($"SendImg: {ex.Message}");
                return null;
            }
            string strEventName = eventName;
            if (string.IsNullOrEmpty(eventName))
            {
                strEventName = "Redraw";
            }
            var responseEvent = new JsEvent(strEventName);
            if (sendContent)
            {
                string base64Header = $"data:image/png;base64,";
                responseEvent.Data = (base64Header + Convert.ToBase64String(image));
            }
            else
            {
                responseEvent.Data = imageFile;
            }
            return responseEvent;
        }
        public JsEvent Redraw()
        {
            return this.ShowImg();
        }

        /// <summary>
        /// Refresh-刷新
        /// </summary>
        /// <returns></returns>
        public JsEvent ReFresh()
        {
            this.Drawer.Geo.ReloadFile();
            return this.ShowImg();
        }

        /// <summary>
        /// ReCenter -全图居中
        /// </summary>
        /// <returns></returns>
        public JsEvent DrawCenter()
        {
            this.Drawer.Geo.ReloadFile();
            return this.ShowImg();
        }

        /// <summary>
        /// Gets 所有图元的数量.
        /// </summary>
        /// <returns>A JsEvent.</returns>
        public JsEvent GetElementsCount()
        {
            var responseEvent = new JsEvent("GetElementsCount");
            int nCount = this.Drawer.Geo.GetElementCount();
            responseEvent.Data = nCount;
            return responseEvent;
        }
        #region 图层管理
        /// <summary>
        /// 获得图层数据.获取层位字符串(常规格式)
        /// </summary>
        /// <returns>A Task.</returns>
        public JsEvent GetLayers()
        {
            var responseEvent = new JsEvent("ReloadLayer")
            {
                Data = this.Drawer.LayerTree.Layers
            };
            return responseEvent;
        }

        /// <summary>
        /// 获取图层，获得JSON结构化图层数据.
        /// </summary>
        /// <returns>A Task.</returns>
        public JsEvent GetLayersJson()
        {
            var responseEvent = new JsEvent("ReloadLayer")
            {
                Data = this.Drawer.LayerTree.LayersJson
            };
            // responseEvent.Data = this.Drawer.LayerTree.LayersJson;
            return responseEvent;
        }

        /// <summary>
        /// Sets the layers status.
        /// </summary>
        /// <param name="layersStatus">The layers status. 
        /// VIEW_EDIT = 10,
        /// VIEW_NOT_EDIT = 11,
        /// NOT_VIEW_NOT_EDIT = 12</param>
        /// <returns>A Task.</returns>
        public JsEvent SetLayersStatus(string layersStatus)
        {
            GeoLayerTree layerTree = this.Drawer?.LayerTree;
            if (layerTree.SetLayersStatus(layersStatus))
            {
                return ShowImg();
            }
            return null;
        }
        /// <summary>
        /// 删除图层
        /// </summary>
        /// <param name="layers"></param>
        /// <param name="withSubLayer"></param>
        /// <returns></returns>
        public JsEvent DeleteLayers(string layers, bool withSubLayer)
        {
            var layerArray = layers.Split(new string[] { Environment.NewLine, "," }, StringSplitOptions.RemoveEmptyEntries);
            int nCount = layerArray.Length;
            if (nCount == 0)
            {
                return null;
            }
            for (int i = 0; i < nCount; i++)
            {
                int nIndexFind = layerArray[i].IndexOf("Layer:\\", 0, StringComparison.CurrentCultureIgnoreCase);
                if (nIndexFind >= 0)
                {
                    layerArray[i] = layerArray[i].Remove(0, 7+ nIndexFind);
                }
            }

            this.Drawer.DeleteLayers(layerArray, withSubLayer);
            return this.ShowImg();
            //var responseEvent = new JsEvent("DeleteLayers")
            //{
            //    Data = string.Empty,
            //};
            //await SendTargetedEvent(socketContex, responseEvent).ConfigureAwait(true);
            //await this.ShowImgAsync();
        }
        public JsEvent ClearAll(bool needUndo)
        {
            bool bSuccess = this.Drawer.ClearAll(needUndo);

            var responseEvent = new JsEvent("ClearAll")
            {
                Data = bSuccess,
            };
            return responseEvent;
        }
        #endregion

        #region 合并图件
        /// <summary>
        /// 合并图件
        /// </summary>
        /// <param name="fileName">图件地址</param>
        /// <returns></returns>
        public JsEvent MergeFile(string fileName)
        {
            DrawerConfig.StartupPath = WebConfig.StartupPath;
            //string strServerPath = WebConfig.MapDirectory;// 获取配置文件中的MapDirectory目录
           // string strMapFile = Path.Combine(strServerPath, fileName);
            if (!File.Exists(fileName))
            {
                var responseEventError = new JsEvent("MergeFile")
                {
                    Data = false,
                };
                return responseEventError;
            }
            bool isSuccess = this.Drawer.MergeFile(fileName);
            var responseEvent = new JsEvent("MergeFile")
            {
                Data = isSuccess,
            };
            return responseEvent;
        }

        #endregion

        #region 数据操作
        /// <summary>
        /// 添加数据.
        /// </summary>
        /// <param name="data">The data.</param>
        /// <returns>A Task.</returns>
        public JsEvent AddBufferData(string data)
        {
            int nResult = this.Drawer.AddBufferData(data);

            var responseEvent = new JsEvent("AddBufferData")
            {
                Data = nResult,
            };
            return responseEvent;
        }
        public JsEvent InsertDataBottom(string data, string newLayer, bool createBlock)
        {
            bool nResult = false;
            if (createBlock)
            {
                string strData = $"Layer M {newLayer}{Environment.NewLine}Block{Environment.NewLine}{data}{Environment.NewLine}EndBlock{Environment.NewLine}";
                nResult = this.Drawer.InsertDataBottom(data, "");
            }
            else
            {
                nResult = this.Drawer.InsertDataBottom(data, newLayer);
            }
            var responseEvent = new JsEvent("AddBasicDraw")
            {
                Data = nResult,
            };
            return responseEvent;
        }
        #endregion

        #region 坐标工具
        /// <summary>
        /// 屏幕坐标转换为实际坐标.
        /// </summary>
        /// <param name="startX">The start x.</param>
        /// <param name="endX"></param>
        /// <param name="startY">The start y.</param>
        /// <param name="endY"></param>
        /// <returns>A Task.</returns>
        public JsEvent QueryRangeScreen2RealX(double startX, double endX, double startY, double endY)
        {
            double dRectLeft = 0, dRectRight = 0, dRectTop = 0, dRectBottom = 0;
            this.Drawer.Geo.GetScreenReal((int)startX, (int)startY, (int)endX, (int)endY
                , ref dRectLeft, ref dRectTop, ref dRectRight, ref dRectBottom);

            Dictionary<string, object> keyValues = new Dictionary<string, object>();
            keyValues.Add("left", dRectLeft);
            keyValues.Add("bottom", dRectBottom);
            keyValues.Add("right", dRectRight);
            keyValues.Add("top", dRectTop);
            var responseEvent = new JsEvent("MapRangeReal")
            {
                Data = keyValues,
            };
            return responseEvent;
        }

        /// <summary>
        /// 创建有利区
        /// </summary>
        /// <param name="dir">图件存储目录</param>
        /// <param name="layerName">将创建有利区的图层，如果不存在，则会自动创建图层</param>
        /// <param name="sourceFileName">原文件名，不带路径</param>
        /// <param name="zMin">最小 z 值</param>
        /// <param name="zMax">最大 z 值</param>
        /// <returns></returns>
        public JsEvent CreateFavorableArea(string dir,string sourceFileName, string layerName, double zMin, double zMax)
        {
            var drawerData = new DrawerData();
            this.Drawer.Geo.CreateFavorableArea(drawerData.pXy, "有利区", zMin, zMax);

            string  filename = $"{sourceFileName}-有利区-{DateTime.Now:yyyyMMddHHmmssff}.kev";
            string strMapFile = Path.Combine(dir, filename);
            drawerData.SaveAs(strMapFile);

            var keyValues = new Dictionary<string, object>()
            {
                { "filename", filename },
            };

            return new JsEvent("CreateFavorableArea")
            {
                Data = keyValues,
            };
        }

        /// <summary>
        /// 合并有利区底图
        /// </summary>
        /// <param name="dir">目录</param>
        /// <param name="sourceFileName">原图文件</param>
        /// <param name="bottomFileName">底层</param>
        /// <returns></returns>
        public JsEvent MergeFavorableArea(string dir, string sourceFileName, string bottomFileName)
        {
            string filename = $"{Path.GetFileNameWithoutExtension(sourceFileName)}-有利区-{DateTime.Now:HHmmssff}-带底图.kev";
            string sourcePath = Path.Combine(dir, sourceFileName);
            string targetPath = Path.Combine(dir, filename);
            string bottomPath = Path.Combine(dir, bottomFileName);
            string type = "MergeFavorableArea";

            var drawerData = new DrawerData();
            if (!drawerData.OpenFile(sourcePath))
            {
                return ErrorEvent(type, $"打开原文件失败，原文件路径: {sourcePath}");
            }

            if (!drawerData.MergeFile(bottomPath))
            {
                return ErrorEvent(type, $"合并文件失败，合并文件路径: {bottomPath}");
            }

            if (!drawerData.SaveAs(targetPath))
            {
                return ErrorEvent(type, $"保存文件失败，保存文件路径: {targetPath}");
            }

            return new JsEvent(type)
            {
                Success = true,
                Data = new Dictionary<string, object>()
                {
                    {  "filename", $"{Path.GetFileName(targetPath)}" },
                }
            };
        }

        private JsEvent ErrorEvent(string type, string message)
        {
            return new JsEvent(type)
            {
                Success = false,
                Data = new Dictionary<string, object>()
                {
                    {  "error", message },
                }
            };
        }

        #endregion


        /// <summary>
        /// Creates the drawer.
        /// </summary>
        /// <param name="file">The file.</param>
        /// <param name="w">The w.</param>
        /// <param name="h">The h.</param>
        /// <param name="context"></param>
        public async static Task<string> CreateDrawerAsync(string file, int w, int h, IWebSocketContext context, string token)
        {
            DrawerConfig.StartupPath = WebConfig.StartupPath;
            string strServerPath = WebConfig.MapDirectory;
            WebDrawer drawer = new WebDrawer(w, h);
            string strMapFile = Path.Combine(strServerPath, file);
            //ImageFile = Path.Combine(strServerPath, "K1.png");
            string strToken = string.Empty;
           await Task.Run(() =>
            {
                GeoSigmaXY geo = drawer.OpenFile(strMapFile);
                if (geo != null)
                {
                    strToken = geo.GetDrawerXy().ToInt64().ToString();
                }
            });
           
            if (!string.IsNullOrEmpty(strToken))
            {
                GlobalSession.StoreData(token, drawer);
                //Context.Session["DrawerFile"] = file;
                GlobalSession.StoreData($"Lock_{token}", new SemaphoreSlim(1, 1));
            }
            Logger.Info("CreateDrawerAsync:" + token);
            return strToken;
        }
        /// <summary>
        /// 资源销毁
        /// </summary>
        public static async Task CloseDrawerAsync(string token, IWebSocketContext context)
        {            
            SemaphoreSlim drawerLock = (SemaphoreSlim)GlobalSession.GetData($"Lock_{token}");
            if(drawerLock == null)
            {
                return;
            }
            // 确保在销毁前没有其他线程访问Drawer对象
            await drawerLock.WaitAsync();
            try
            {
                WebDrawer drawer = (WebDrawer)GlobalSession.GetData(token);

                if (drawer != null)
                {
                    drawer.Dispose(); // 释放资源
                   
                    GlobalSession.TryRemove(token, out object objDrawer); // 从Session中移除Drawer对象
                    GlobalSession.TryRemove($"Lock_{token}", out object objLock);   // 从Session中移除锁对象

                    drawer = null;
                }
            }
            finally
            {
                drawerLock.Release();
                drawerLock.Dispose(); // 释放 SemaphoreSlim 资源
            }
        }
        /// <summary>
        /// Converts the bitmap to byte array.
        /// </summary>
        /// <param name="bitmap">The bitmap.</param>
        /// <returns>An array of byte.</returns>
        public static byte[] ConvertBitmapToByteArray(Bitmap bitmap)
        {
            if (bitmap == null)
            {
                return null;
            }
            using (MemoryStream memoryStream = new MemoryStream())
            {
                // 选择图像格式，可以是Png、Jpeg等
                bitmap.Save(memoryStream, ImageFormat.Png);
                return memoryStream.ToArray();
            }
        }
    }
}