using MECF.Framework.UI.Core.DxfScript;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows;
using System.Globalization;
using System.Windows.Controls;
using Newtonsoft.Json.Linq;
using System.Xml.Linq;
using Microsoft.Win32.SafeHandles;
using System.Windows.Input;
using MECF.Framework.UI.Core.DxfScript.Converter;
using SciChart.Core.Extensions;
namespace MECF.Framework.UI.Core.DxfScript
{
    /// <summary>
    /// 名称：Draw类
    /// 用途：根据自定义对象画页面元素
    /// </summary>
    public partial class GasDxfDocument
    {

        //画全部元素
        public void Draw()
        {

            if (Lines.Count == 0)
            {
                return;
            }
            draw.ClearDrawing();
            CreateGraphics();

            InitScale();
            foreach (var line in Lines)
            {
                DrawLine(line, false);

            }
            foreach (GasCircle circle in Circles)
            {
                DrawCircle(circle, false);

            }
            foreach (GasFunnel funnel in Funnels)
            {
                DrawFunnel(funnel, false);

            }
            foreach (GasText text in Texts)
            {
                DrawText(text, false);

            }
            foreach (GasPolyLine polyLine in PolyLines)
            {
                DrawPolyLine(polyLine, false);

            }
            foreach (GasAITValve valve in Valves)
            {
                DrawValve(valve, false);

            }
            foreach (GasButton button in Buttons)
            {
                DrawButton(button, false);

            }
            foreach (GasAnalogControl4Jet analog in Analogs)
            {
                DrawAnalog(analog, false);

            }
            CloseGraphics();
            draw.SaveDrawing();
        }

        //清除所有元素
        private void ClearDxf()
        {
            if (Lines != null)
            {
                Lines.Clear();
            }
            else
            {
                Lines = new List<GasLine>();
            }
            if (PolyLines != null)
            {
                PolyLines.Clear();
            }
            else
            {
                PolyLines = new List<GasPolyLine>();
            }
            if (Circles != null)
            {
                Circles.Clear();

            }
            else
            {
                Circles = new List<GasCircle>();
            }
            if (Funnels != null)
            {
                Funnels.Clear();

            }
            else
            {
                Funnels = new List<GasFunnel>();
            }
            if (Texts != null)
            {
                Texts.Clear();

            }
            else
            {
                Texts = new List<GasText>();
            }
            if (Valves != null)
            {
                Valves.Clear();

            }
            else
            {
                Valves = new List<GasAITValve>();
            }

            if (Buttons != null)
            {
                Buttons.Clear();

            }
            else
            {
                Buttons = new List<GasButton>();
            }
            if (Analogs != null)
            {
                Analogs.Clear();

            }
            else
            {
                Analogs = new List<GasAnalogControl4Jet>();
            }

            DxfWidth = 0;
            DxfHeight = 0;
            MinX = 100000;
            MinY = 100000;
            MaxX = 0;
            MaxY = 0;
            Scale = 1;
            dragX = 0;
            dragY = 0;
        }
        //开始画元素
        public void DrawShape(GasBaseShape shape, bool isSelected)
        {
            CreateGraphics();
            draw.LoadDrawing(dragX, dragY);
            if (shape is GasFunnel)
            {
                DrawFunnel(shape as GasFunnel, isSelected);
            }
            if (shape is GasLine)
            {
                DrawLine(shape as GasLine, isSelected);
            }
            else if (shape is GasCircle)
            {
                DrawCircle(shape as GasCircle, isSelected);
            }
            else if (shape is GasText)
            {
                DrawText(shape as GasText, isSelected);
            }
            else if (shape is GasPolyLine)
            {
                DrawPolyLine(shape as GasPolyLine, isSelected);
            }
            else if (shape is GasAITValve)
            {
                DrawValve(shape as GasAITValve, isSelected);
            }
            else if (shape is GasButton)
            {
                DrawButton(shape as GasButton, isSelected);
            }
            else if (shape is GasAnalogControl4Jet)
            {
                DrawAnalog(shape as GasAnalogControl4Jet, isSelected);
            }
            CloseGraphics();
        }
        //设置画笔颜色
        private Brush GetGasShapeBrush(GasBaseShape shape, bool isSelected)
        {
            if (shape == null) return NormalBrush;

            if (!IsExecuted)
            {
                return GetDevelopmentBrush(shape, isSelected);
            }
            else
            {
                return GetExecutionBrush(shape);
            }
        }


        private Pen GetPenByBrush(Brush brush)
        {
            if (brush == NormalBrush)
            {
                return NormalPen;

            }
            else if (brush == SelectedBrush)
            {
                return SelectedPen;
            }
            else if (brush == WithConditionBrush)
            {
                return WithConditionPen;
            }
            else if (brush == ReturnTrueBrush)
            {
                return ReturnTruePen;
            }
            else if (brush == WithErrorBrush)
            {
                return WithErrorPen;
            }
            else if (brush == TransparentBrush)
            {
                return TransparentPen;
            }
            else
            {
                return null;
            }
        }
        //画单线
        private void DrawLine(GasLine line, bool isSelected, Brush brush = null)
        {

            if (brush == null)
                brush = GetGasShapeBrush(line, isSelected);
            Pen pen = GetPenByBrush(brush);

            double x1 = line.X1 * rate * Scale + XSPACE + dragX;
            double x2 = line.X2 * rate * Scale + XSPACE + dragX;
            double y1 = (DxfHeight - line.Y1) * rate * Scale + YSPACE + dragY;
            double y2 = (DxfHeight - line.Y2) * rate * Scale + YSPACE + dragY;
            dc.DrawLine(pen, new Point(x1, y1), new Point(x2, y2));


        }
        //画漏斗
        private void DrawFunnel(GasFunnel funnel, bool isSelected, Brush brush = null)
        {
            if (funnel == null) return;

            foreach (var line in funnel.GasLines)
            {
                DrawLine(line, isSelected, brush);
            }
        }
        //画圆
        private void DrawCircle(GasCircle circle, bool isSelected, Brush brush = null)
        {

            if (brush == null) brush = GetGasShapeBrush(circle, isSelected); ;
            Pen pen = GetPenByBrush(brush);


            if (brush == NormalBrush)
            {
                pen = NormalPen;
                brush = TransparentBrush;
            }
            else
            {
                pen = NormalPen;
                //brush不变
            }
            double x = (circle.X) * rate * Scale + XSPACE + dragX;//圆心x
            double y = (DxfHeight - circle.Y) * rate * Scale + YSPACE + dragY;//圆心y
            double r = circle.R * rate * Scale;

            if (circle.StartAngle > 0)
            {
                DrawGeometry(circle, isSelected, brush);
            }
            else
            {

                dc.DrawEllipse(brush, pen, new Point(x, y), r, r);
            }
        }
        //画弧线
        public void DrawGeometry(GasCircle circle, bool isSelected, Brush brush = null)
        {
            if (brush == null) brush = GetGasShapeBrush(circle, isSelected); ;
            Pen pen = GetPenByBrush(brush);


            if (brush == NormalBrush)
            {
                pen = NormalPen;
                brush = TransparentBrush;
            }
            else
            {
                pen = NormalPen;
                //brush不变
            }
            double x = (circle.X) * rate * Scale + XSPACE + dragX;//圆心x
            double y = (DxfHeight - circle.Y) * rate * Scale + YSPACE + dragY;//圆心y
            double r = circle.R * rate * Scale;


            Rect arcRect = new Rect(x - r, y - r, 2 * r, 2 * r);

            // 定义圆弧的起始角度和扫过角度
            double startAngle = circle.StartAngle;     // 起始角度
            double sweepAngle = circle.EndAngle - circle.StartAngle;   // 扫过角度

            // 将角度转换为弧度
            double startAngleRad = startAngle * Math.PI / 180;
            double sweepAngleRad = sweepAngle * Math.PI / 180;

            // 计算起始点和结束点
            Point startPoint = new Point(
                arcRect.X + arcRect.Width / 2 + arcRect.Width / 2 * Math.Cos(startAngleRad),
                arcRect.Y + arcRect.Height / 2 - arcRect.Height / 2 * Math.Sin(startAngleRad));

            Point endPoint = new Point(
                arcRect.X + arcRect.Width / 2 + arcRect.Width / 2 * Math.Cos(startAngleRad + sweepAngleRad),
                arcRect.Y + arcRect.Height / 2 - arcRect.Height / 2 * Math.Sin(startAngleRad + sweepAngleRad));

            // 定义弧形段
            ArcSegment arcSegment = new ArcSegment
            {
                Point = endPoint,
                Size = new Size(arcRect.Width / 2, arcRect.Height / 2),
                RotationAngle = 0,
                IsLargeArc = (sweepAngle - startAngle) > 180,
                SweepDirection = SweepDirection.Counterclockwise
            };

            // 定义路径段
            PathFigure pathFigure = new PathFigure
            {
                StartPoint = startPoint,
                Segments = new PathSegmentCollection { arcSegment }
            };

            // 定义路径几何
            PathGeometry pathGeometry = new PathGeometry();
            pathGeometry.Figures.Add(pathFigure);

            // 使用 DrawingContext 绘制路径
            dc.DrawGeometry(brush, pen, pathGeometry);

        }
        //画文本
        private void DrawText(GasText text, bool isSelected, Brush brush = null)
        {
            if (brush == null) brush = GetGasShapeBrush(text, isSelected); ;
            Pen pen = GetPenByBrush(brush);

            if (string.IsNullOrEmpty(text.Text)) return;
         

            string[] textLines = Regex.Split(text.Text, "\\\\P");
            for (int i = 0; i < textLines.Length; i++)
            {
                double x = text.X;
                double y = text.Y;
                double rectWidth = text.RectWidth;
                double rectHeight = text.RectHeight;
                double textWidth = GetFontWidth(textLines[i], text.FontSize);
                double textHeight = text.FontSize;
                double fontSize = text.FontSize;
                int alignment = text.Alignment;
                double lineSpace = text.LineSpace;

                switch (alignment)
                {
                    case 1:
                        x += (rectWidth - textWidth) / 2;
                        y = y - (rectHeight - textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 4:
                        x += (rectWidth - textWidth) / 2;
                        y += textHeight / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 7:
                        x += (rectWidth - textWidth) / 2;
                        y += (rectHeight + textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 2:
                        x -= textWidth / 2;
                        y = y - (rectHeight - textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;

                    case 5:
                        x -= textWidth / 2;
                        y += textHeight / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 8:
                        x -= textWidth / 2;
                        y += (rectHeight + textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 3:
                        x -= (rectWidth + textWidth) / 2;
                        y = y - (rectHeight - textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;

                        break;
                    case 6:
                        x -= (rectWidth + textWidth) / 2;
                        y += textHeight / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;
                    case 9:
                        x -= (rectWidth + textWidth) / 2;
                        y += (rectHeight + textHeight) / 2;
                        y -= (textHeight + lineSpace) * i;
                        break;


                }
                x = x * rate * Scale + XSPACE + dragX;
                y = (DxfHeight - y) * rate * Scale + YSPACE + dragY;
                dc.DrawText(GetFormattedText(textLines[i], text.FontSize * rate * Scale, brush), new Point(x, y));
            }




        }
        //画多线
        private void DrawPolyLine(GasPolyLine polyLine, bool isSelected, Brush brush = null)
        {
            if (brush == null) brush = GetGasShapeBrush(polyLine, isSelected); ;
            Pen pen = GetPenByBrush(brush);
            foreach (GasLine line in polyLine.InnerLines)
            {
                DrawLine(line, isSelected, brush);
            }


        }
        //画按钮
        private void DrawButton(GasButton button, bool isSelected, Brush brush = null)
        {

            if (brush == null) brush = GetGasShapeBrush(button, isSelected); ;
            Pen pen = GetPenByBrush(brush);
            if (brush == NormalBrush)
            {
                pen = NormalPen;
                brush = TransparentBrush;
            }
            else
            {
                pen = NormalPen;

            }
            double x, y, width, height;
            x = Math.Min(button.InnerPolyLine.InnerLines[0].X1, button.InnerPolyLine.InnerLines[0].X2);
            y = Math.Max(button.InnerPolyLine.InnerLines[0].Y1, button.InnerPolyLine.InnerLines[0].Y2);
            width = Math.Abs(button.InnerPolyLine.InnerLines[0].X1 - button.InnerPolyLine.InnerLines[0].X2);
            height = Math.Abs(button.InnerPolyLine.InnerLines[1].Y1 - button.InnerPolyLine.InnerLines[1].Y2);
            x = x * rate * Scale + XSPACE + dragX;
            y = (DxfHeight - y) * rate * Scale + YSPACE + dragY;
            width = width * rate * Scale;
            height = height * rate * Scale;
            dc.DrawRectangle(brush, pen, new Rect(x, y, width, height));

            DrawText(button.InnerText, isSelected, NormalBrush);



        }
        //画阀
        private void DrawValve(GasAITValve valve, bool isSelected, Brush brush = null)
        {
            if (brush == null) brush = GetGasShapeBrush(valve, isSelected); ;
            Pen pen = GetPenByBrush(brush);


            DrawCircle(valve.InnerCircle, isSelected, brush);
            DrawText(valve.InnerText, isSelected, NormalBrush);
            if (valve.InnerPolyLine != null && valve.InnerPolyLine.InnerLines != null)
            {
                DrawPolyLine(valve.InnerPolyLine, isSelected, NormalBrush);
            }



        }
        //画按钮
        private void DrawAnalog(GasAnalogControl4Jet analog, bool isSelected, Brush brush = null)
        {
            if (brush == null) brush = GetGasShapeBrush(analog, isSelected); ;
            Pen pen = GetPenByBrush(brush);
            DrawButton(analog.TopButton, isSelected, brush);
            DrawButton(analog.LeftButton, isSelected, brush);
            DrawButton(analog.RightButton, isSelected, brush);


        }
        //创建自定义画布对象
        private void CreateGraphics()
        {

            if (dc == null) dc = draw.CreateGraphics();
        }
        //清除画布对象
        private void CloseGraphics()
        {
            if (dc != null)
            {
                draw.Dispose();
            }
            dc = null;
        }
        private double GetFontWidth(string text, double fontSize)
        {
            if (computeSizeTextBlock == null)
            {
                computeSizeTextBlock = new TextBlock();
                PixelsPerDip = DpiHelper.GetPixelsPerDip(Application.Current.MainWindow);
            }
            computeSizeTextBlock.Text = text;
            computeSizeTextBlock.FontSize = fontSize == 0 ? 15 : fontSize;
            computeSizeTextBlock.FontFamily = new FontFamily("宋体");
            FormattedText formattedText = new FormattedText(
                                    computeSizeTextBlock.Text,
                                     CultureInfo.GetCultureInfo("zh-CN"),
                                     FlowDirection.LeftToRight,
                                    new Typeface(computeSizeTextBlock.FontFamily, computeSizeTextBlock.FontStyle, computeSizeTextBlock.FontWeight, computeSizeTextBlock.FontStretch),
                                    computeSizeTextBlock.FontSize,
                                    Brushes.Black);
            return formattedText.Width;

        }
        private FormattedText GetFormattedText(string text, double fontSize, Brush brush)
        {
            if (computeSizeTextBlock == null)
            {
                computeSizeTextBlock = new TextBlock();
            }
            computeSizeTextBlock.Text = text;
            computeSizeTextBlock.FontSize = fontSize == 0 ? 15 : fontSize;
            computeSizeTextBlock.FontFamily = new FontFamily("宋体");
            FormattedText formattedText = new FormattedText(
                                    computeSizeTextBlock.Text,
                                     CultureInfo.GetCultureInfo("zh-CN"),
                                     FlowDirection.LeftToRight,
                                    new Typeface(computeSizeTextBlock.FontFamily, computeSizeTextBlock.FontStyle, computeSizeTextBlock.FontWeight, computeSizeTextBlock.FontStretch),
                                    computeSizeTextBlock.FontSize,
                                    brush);
            return formattedText;

        }
        #region  根据不同环境对画刷处理
        //主方法 GetGasShapeBrush：根据 IsExecuted 的状态分为开发态和执行态处理。
        //开发态处理 GetDevelopmentBrush：处理开发态下的逻辑，包括条件检查和选择画刷。
        //如果形状未启用，直接返回 DisabledBrush。
        //依次检查 BoolCondition 和 StringCondition，如果有错误，直接返回 WithErrorBrush。
        //处理特定类型的形状逻辑。
        //条件检查 CheckAndHandleCondition：统一处理 BoolCondition 和 StringCondition 的检查逻辑，减少代码重复。
        //执行态处理 GetExecutionBrush：处理执行态下的逻辑，包括条件执行和选择画刷。
        //如果形状未启用，直接返回 DisabledBrush。
        //依次执行 BoolCondition 和 StringCondition，如果有错误，直接返回 WithErrorBrush。
        //条件执行 ExecuteAndHandleCondition：统一处理 BoolCondition 和 StringCondition 的执行逻辑，减少代码重复。
        //处理开发环境下的特定形状 HandleSpecialShapesDevelopment：处理开发环境下特定形状的逻辑。
        //处理执行环境下的特定形状 HandleSpecialShapesExecution：处理执行环境下特定形状的逻辑。
        private Brush GetDevelopmentBrush(GasBaseShape shape, bool isSelected)
        {
            if (isSelected) return SelectedBrush;

            if (!shape.Enable) return DisabledBrush;

            Brush brush = NormalBrush;

            brush = CheckAndHandleCondition(shape.BoolCondition, brush, shape.Id, BoolConditions);
            if (brush == WithErrorBrush) return brush;

            brush = CheckAndHandleCondition(shape.StringCondition, brush, shape.Id, StringConditions);
            if (brush == WithErrorBrush) return brush;

            brush = CheckAndHandleCondition(shape.ClickCondition, brush, shape.Id, ClickConditions);
            if (brush == WithErrorBrush) return brush;

            brush = HandleSpecialShapesDevelopment(shape, brush);
            return brush;
        }
        private Brush HandleSpecialShapesDevelopment(GasBaseShape shape, Brush currentBrush)
        {
            if (shape is GasAITValve)
            {
                // 处理 GasAITValve 的开发环境逻辑
                return currentBrush;
            }
            else if (shape is GasAnalogControl4Jet)
            {
                // 处理 GasAnalogControl4Jet 的开发环境逻辑
                return currentBrush;
            }

            return currentBrush;
        }
        private Brush CheckAndHandleCondition(Script condition, Brush currentBrush, int shapeId, Dictionary<int, string> conditionsDict)
        {
            if (condition == null || condition.Result == ScriptResult.EMPTY)
            {
                return currentBrush;
            }
            else if (condition.Result == ScriptResult.SUCCESS)
            {
                return WithConditionBrush;
            }
            else if (condition.Result == ScriptResult.ERROR)
            {
                if (conditionsDict.ContainsKey(shapeId))
                {
                    if (!conditionsDict[shapeId].EndsWith("TODO"))
                    {
                        conditionsDict[shapeId] += "\n//" + condition.Error + ":TODO";
                    }
                }
                return WithErrorBrush;
            }
            return currentBrush;
        }

        private Brush GetExecutionBrush(GasBaseShape shape)
        {
            bool isExec = shape.ClickCondition == null && shape.BoolCondition == null && shape.StringCondition == null;

            if (!shape.Enable&& isExec)
            {
                return DisabledBrush;
            }
           

            Brush brush = NormalBrush;

            brush = ExecuteAndHandleCondition(shape.ClickCondition, brush, shape);

            brush = ExecuteAndHandleCondition(shape.BoolCondition, brush, shape);
            if (brush == WithErrorBrush) return brush;

            brush = ExecuteAndHandleCondition(shape.StringCondition, brush, shape);
            if (brush == WithErrorBrush) return brush;

          

            return brush;
        }

        private Brush ExecuteAndHandleCondition(Script condition, Brush currentBrush, GasBaseShape shape)
        {
            if (condition == null) return currentBrush;

            if (condition.Result == ScriptResult.EMPTY)
            {
                return currentBrush;
            }
            //由于一直在Draw()，会不断的执行脚本 导致十分卡顿
            //而且由于采用切换key的方法读取值，所以这部分不需要一直执行脚本
            //if (isExecute)
            //{
            //    condition.Execute();
            //}

            if (condition.Result == ScriptResult.SUCCESS)
            {
                return HandleSpecialShapes(condition, currentBrush, shape);
            }
            else if (condition.Result == ScriptResult.ERROR)
            {
            // return WithErrorBrush;
               return NormalBrush;
            }


            return currentBrush;
        }
        private Brush HandleSpecialShapes(Script condition, Brush currentBrush, GasBaseShape shape)
        {

            // 提取重复的逻辑到一个方法
            Brush defaultBrush = GetDefaultBrush(shape, currentBrush);

            switch (shape)
            {
                case GasAITValve aiTValve:

                    var result = condition.ReadValue<bool>(aiTValve.Key);
                    return result ? ReturnTrueBrush : defaultBrush;

                case GasAnalogControl4Jet mfc:
                    var value = condition.ReadValue<double>(mfc.ValueKey);
                    mfc.LeftButton.InnerText.Text = value.ToString("f2");
                    mfc.RightButton.InnerText.Text = condition.ReadValue<string>(mfc.UnitKey);
                    return value>0?GasMapProvider.ChangeMFCColor:defaultBrush;

                case GasButton btn:
                 
                    return condition.ReadValue<bool>(btn.DataKey) ? ReturnTrueBrush : defaultBrush;

                case GasCircle cycle:

                    return !string.IsNullOrEmpty(cycle.Key) && condition.ReadValue<bool>(cycle.Key) ? ReturnTrueBrush : defaultBrush;

                default:
                    return defaultBrush;
            }
        }

        private Brush GetDefaultBrush(GasBaseShape shape, Brush currentBrush)
        {
            // 如果 shape 自身有 Brush，则使用它；否则，使用传入的 currentBrush
            return shape.Brush ?? currentBrush;
        }
        #endregion


    }
}