using System;
using System.Collections.Generic;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using CadParamPluging.Common;

namespace CadParamPluging.Cad
{
    /// <summary>
    /// 车加工-轧制-环形 独立绘图器
    /// 物理隔离的绘图逻辑，不依赖 FeatureDrivenDrawer 的具体实现（除了部分通用工具方法）
    /// </summary>
    public static class RingMachinedRollingDrawer
    {
        #region 参数Key常量 (复用 FeatureDrivenDrawer 的定义)
        public const string KeyOuterDiameter1 = "OuterDiameter1";
        public const string KeyOuterDiameter1TolPlus = "OuterDiameter1TolPlus";
        public const string KeyOuterDiameter1TolMinus = "OuterDiameter1TolMinus";
        public const string KeyInnerDiameter2 = "InnerDiameter2";
        public const string KeyInnerDiameter2TolPlus = "InnerDiameter2TolPlus";
        public const string KeyInnerDiameter2TolMinus = "InnerDiameter2TolMinus";
        public const string KeyHeight1 = "Height1";
        public const string KeyHeight1TolPlus = "Height1TolPlus";
        public const string KeyHeight1TolMinus = "Height1TolMinus";
        public const string KeyMinWallThickness = "MinWallThickness";
        public const string KeyUnspecifiedFilletRadiusMax = "UnspecifiedFilletRadiusMax";
        
        public const string KeyOuterDiameter1Prime = "OuterDiameter1Prime";
        public const string KeyInnerDiameter2Prime = "InnerDiameter2Prime";
        public const string KeyHeight1Prime = "Height1Prime";

        public const string KeyMarkingContent = "MarkingContent";
        #endregion

        public static void Draw(CadContext ctx, ParamBag bag, Point3d center, double scaleFactor = 1.0)
        {
            if (ctx == null) throw new ArgumentNullException(nameof(ctx));
            if (bag == null) throw new ArgumentNullException(nameof(bag));

            // 缩放处理
            var effectiveBag = scaleFactor < 1.0 ? ScaleParamBag(bag, scaleFactor) : bag;

            var db = ctx.Database;
            var tr = ctx.Transaction;

            var prevDb = HostApplicationServices.WorkingDatabase;
            HostApplicationServices.WorkingDatabase = db;
            BlockTableRecord btr;
            try
            {
                var bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
                btr = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
            }
            finally
            {
                HostApplicationServices.WorkingDatabase = prevDb;
            }

            var context = new FeatureDrivenDrawer.DrawingContext
            {
                Ctx = ctx,
                Bag = effectiveBag,
                OriginalBag = bag,
                Center = center,
                DeliveryStatus = "车加工",
                StructuralFeature = "环形",
                ProcessMethod = "轧制",
                Btr = btr,
                Style = new DrawingStyleManager(db, tr)
            };

            var outerDia = effectiveBag.GetDoubleOrNull(KeyOuterDiameter1);
            var height = effectiveBag.GetDoubleOrNull(KeyHeight1);

            if (!outerDia.HasValue || outerDia.Value <= 0 || !height.HasValue || height.Value <= 0)
            {
                return;
            }

            // 调用核心绘制逻辑
            // 此处传递 true 以启用 UnspecifiedFillet 逻辑 (与 FeatureDrivenDrawer.DrawRingRollingWithUnspecifiedFillet 保持一致)
            DrawCore(context, outerDia.Value, height.Value, true);
        }

        private static void DrawCore(FeatureDrivenDrawer.DrawingContext ctx, double outerDia, double height, bool applyUnspecifiedFillet)
        {
            var bag = ctx.Bag;
            
            // --- 几何与视觉映射计算 ---
            double H = height;
            double physicalOuterR = outerDia / 2.0;
            double physicalInnerR = 0;
            
            var innerDia = bag.GetDoubleOrNull(KeyInnerDiameter2);
            if (innerDia.HasValue && innerDia.Value > 0)
            {
                 physicalInnerR = innerDia.Value / 2.0;
            }

            // 1. 确定视觉半径
            double visualOuterR = physicalOuterR;
            double visualInnerR = physicalInnerR;

            // 轧制+车加工（示意图模式）特殊处理
            if (ctx.IsMachined)
            {
                var minWallThkParam = bag.GetDoubleOrNull(KeyMinWallThickness);
                
                if (minWallThkParam.HasValue && minWallThkParam.Value > 0)
                {
                    visualInnerR = minWallThkParam.Value * 2.0;
                    visualOuterR = minWallThkParam.Value * 3.0;
                }
                else
                {
                    visualOuterR = H * 3.0; 
                    visualInnerR = visualOuterR * (2.0/3.0);
                }
            }
            
            // 3. 定义半径映射函数
            double MapRadius(double r)
            {
                if (r <= 0) return 0;
                if (physicalInnerR <= 1e-6) 
                {
                    return r * (visualOuterR / physicalOuterR);
                }
                if (r <= physicalInnerR)
                {
                    return r * (visualInnerR / physicalInnerR);
                }
                else
                {
                    double wallScale = (visualOuterR - visualInnerR) / (physicalOuterR - physicalInnerR);
                    return visualInnerR + (r - physicalInnerR) * wallScale;
                }
            }

            // --- 绘图坐标计算 ---
            double ox = ctx.Center.X - visualOuterR / 2.0;  // 对称轴位置
            double oy = ctx.Center.Y - H / 2.0;

            // 车加工态零件尺寸
            double? outerDiaPrime = null;
            double? innerDiaPrime = null;
            double? heightPrime = null;
            if (ctx.IsMachined)
            {
                outerDiaPrime = bag.GetDoubleOrNull(KeyOuterDiameter1Prime);
                innerDiaPrime = bag.GetDoubleOrNull(KeyInnerDiameter2Prime);
                heightPrime = bag.GetDoubleOrNull(KeyHeight1Prime);
            }

            // === 特征1: 锻件外轮廓 ===
            var unspecifiedFillet = bag.GetDoubleOrNull(KeyUnspecifiedFilletRadiusMax);
            bool hasUnspecifiedFillet = applyUnspecifiedFillet && unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0;

            if (!hasUnspecifiedFillet)
            {
                DrawForgingOuterContourHalf(ctx, ox, oy, visualOuterR, H, null);
            }

            // === 特征1.1: 对称轴 ===
            DrawRingSymmetryAxis(ctx, ox, oy, H);

            // === 特征2: 外径公差标注 ===
            var outerTolPlus = bag.GetDoubleOrNull(KeyOuterDiameter1TolPlus);
            var outerTolMinus = bag.GetDoubleOrNull(KeyOuterDiameter1TolMinus);
            DrawOuterDiameterDimensionHalf(ctx, ox, oy, visualOuterR, H, outerDia, outerTolPlus, outerTolMinus, outerDiaPrime);

            // === 特征3: 内孔/内径 ===
            double? xInnerRight = null;
            if (innerDia.HasValue && innerDia.Value > 0 && innerDia.Value < outerDia)
            {
                xInnerRight = ox + visualInnerR;

                var innerTolPlus = bag.GetDoubleOrNull(KeyInnerDiameter2TolPlus);
                var innerTolMinus = bag.GetDoubleOrNull(KeyInnerDiameter2TolMinus);

                if (hasUnspecifiedFillet)
                {
                    FeatureDrivenDrawer.DrawRingSectionContourWithFillet(ctx, xInnerRight.Value, ox + visualOuterR, oy, H, unspecifiedFillet.Value);
                    
                    FeatureDrivenDrawer.DrawHoleHorizontalLines(ctx, ox, xInnerRight.Value, oy, H, unspecifiedFillet.Value);

                    var sectionWidth = (ox + visualOuterR) - (xInnerRight.Value);
                    var maxR = Math.Min(sectionWidth * 0.5, H * 0.5);
                    var r = Math.Min(unspecifiedFillet.Value, maxR);
                    
                    var dimExtensionOffset = 0.0;
                    if (r > 0.01) dimExtensionOffset = r;

                    DrawInnerDiameterDimensionHalf(ctx, ox, xInnerRight.Value, oy, H, innerDia.Value, innerTolPlus, innerTolMinus, innerDiaPrime, dimExtensionOffset);

                    FeatureDrivenDrawer.DrawRingSectionHatchWithFillet(ctx, xInnerRight.Value, ox + visualOuterR, oy, H, unspecifiedFillet.Value);
                }
                else
                {
                    DrawInnerHoleHalf(ctx, ox, xInnerRight.Value, oy, H);
                    DrawInnerDiameterDimensionHalf(ctx, ox, xInnerRight.Value, oy, H, innerDia.Value, innerTolPlus, innerTolMinus, innerDiaPrime);
                    
                    FeatureDrivenDrawer.DrawRingSectionHatch(ctx, xInnerRight.Value, ox + visualOuterR, oy, H);
                    
                    FeatureDrivenDrawer.DrawSectionInnerBoundaryBold(ctx, xInnerRight.Value, oy, H);
                }
            }

            // === 特征5: 高度标注 ===
            var heightTolPlus = bag.GetDoubleOrNull(KeyHeight1TolPlus);
            var heightTolMinus = bag.GetDoubleOrNull(KeyHeight1TolMinus);
            
            double heightDimIndentX = 0.0;
            if (hasUnspecifiedFillet)
            {
                 var sWidth = (ox + visualOuterR) - (xInnerRight.Value); 
                 var maxR = Math.Min(sWidth * 0.5, H * 0.5);
                 var r = Math.Min(unspecifiedFillet.Value, maxR);
                 if (r > 0.01) heightDimIndentX = r;
            }
            
            DrawHeightDimensionHalf(ctx, ox, oy, visualOuterR, H, heightTolPlus, heightTolMinus, heightPrime, heightDimIndentX);

            // === 特征6: 未注圆角 ===
            if (!applyUnspecifiedFillet && unspecifiedFillet.HasValue && unspecifiedFillet.Value > 0)
            {
                FeatureDrivenDrawer.DrawUnspecifiedFilletNote(ctx, ox, oy, H, visualOuterR, unspecifiedFillet.Value);
            }

            // === 特征7: 最小壁厚min标注 ===
            var minWallThickness = bag.GetDoubleOrNull(KeyMinWallThickness);
            if (minWallThickness.HasValue && minWallThickness.Value > 0 && xInnerRight.HasValue)
            {
                var dimExtensionOffset = 0.0;
                if (applyUnspecifiedFillet && unspecifiedFillet.HasValue)
                {
                     var sWidth = Math.Abs((ox + visualOuterR) - (xInnerRight.Value));
                     var maxR = Math.Min(sWidth * 0.5, H * 0.5); 
                     var rCalc = Math.Min(unspecifiedFillet.Value, maxR);
                     if (rCalc > 0.01) dimExtensionOffset = rCalc;
                }

                FeatureDrivenDrawer.DrawMinWallThicknessNote(ctx, xInnerRight.Value, ox + visualOuterR, oy, minWallThickness.Value, dimExtensionOffset);
            }

            // === 特征8: 零件轮廓 ===
            if (ctx.IsMachined && outerDiaPrime.HasValue && outerDiaPrime.Value > 0 && heightPrime.HasValue && heightPrime.Value > 0)
            {
                // 1. 外径
                double physicalPartOuterR = outerDiaPrime.Value / 2.0;
                double visualPartOuterR = MapRadius(physicalPartOuterR);
                var scaledOuterDiaPrime = visualPartOuterR * 2.0;

                // 2. 内径
                double? scaledInnerDiaPrime = null;
                if (innerDiaPrime.HasValue && innerDiaPrime.Value > 0)
                {
                    double physicalPartInnerR = innerDiaPrime.Value / 2.0;
                    double visualPartInnerR = MapRadius(physicalPartInnerR);
                    scaledInnerDiaPrime = visualPartInnerR * 2.0;
                }

                // 3. 高度
                var scaledHeightPrime = heightPrime.Value;

                DrawPartContourHalf(ctx, ox, oy, H, scaledOuterDiaPrime, scaledInnerDiaPrime, scaledHeightPrime);
            }

            // === 特征10: 标刻内容 HB5936-13 ===
            if (ctx.IsMachined && innerDia.HasValue && innerDia.Value > 0)
            {
                var markingText = bag.GetString(KeyMarkingContent);
                // 哪怕没有标刻内容，在"车加工-轧制-环形"中也常常需要显示默认标准
                if (!string.IsNullOrWhiteSpace(markingText) || applyUnspecifiedFillet)
                {
                    // 修改：接触线应该是左侧边（即内孔边界的垂直线）
                    var xTarget = ox + visualInnerR;
                    var yTargetTop = oy + H;

                    if (string.IsNullOrWhiteSpace(markingText))
                    {
                        markingText = "HB5936-13";
                    }

                    DrawMarkingLeaderToSide(ctx, xTarget, yTargetTop, markingText);
                }
            }

            // === 特征9: 硬度符号 (HB) === 
            // 【已移除】按用户需求，此模板不绘制红色方框中的硬度符号
        }

        private static void DrawMarkingLeaderToSide(FeatureDrivenDrawer.DrawingContext ctx, double xTarget, double yTargetTop, string markingText)
        {
            try
            {
                // 箭头起点：内孔左侧边的顶部向下5mm处 (接触线是左侧边)
                var p1 = new Point3d(xTarget, yTargetTop - 5.0, 0);

                // 转折点：向左上 (偏移角度随意，例如左10，上10)
                var p2 = new Point3d(xTarget - 10, yTargetTop + 5, 0);

                // 终点：水平向左
                // 长度根据文字适配
                double textLen = (string.IsNullOrEmpty(markingText) ? 10 : markingText.Length) * 2.5; 
                if (textLen < 20) textLen = 20;

                var p3 = new Point3d(p2.X - textLen, p2.Y, 0);

                var leader = new Leader();
                leader.SetDatabaseDefaults();
                leader.AppendVertex(p1);
                leader.AppendVertex(p2);
                leader.AppendVertex(p3);
                leader.HasArrowHead = true;
                leader.ColorIndex = 7; // 白色
                
                ctx.Btr.AppendEntity(leader);
                ctx.Tr.AddNewlyCreatedDBObject(leader, true);

                var text = new DBText();
                text.TextString = markingText;
                text.Height = 3.5;
                text.ColorIndex = 7;
                text.HorizontalMode = TextHorizontalMode.TextLeft;
                text.VerticalMode = TextVerticalMode.TextBottom;
                text.AlignmentPoint = new Point3d(p3.X, p3.Y + 1.0, 0);
                text.Position = text.AlignmentPoint;

                ctx.Btr.AppendEntity(text);
                ctx.Tr.AddNewlyCreatedDBObject(text, true);
            }
            catch { }
        }

        #region 私有辅助绘图方法

        private static void DrawForgingOuterContourHalf(FeatureDrivenDrawer.DrawingContext ctx, double ox, double oy, double radius, double height, double? filletRadius)
        {
            var rawR = filletRadius.GetValueOrDefault();
            if (rawR > 0)
            {
                var maxR = Math.Min(radius * 0.5, height * 0.5);
                var r = Math.Min(rawR, maxR);
                if (r > 0.01)
                {
                    var bulge = Math.Tan(Math.PI / 8.0);
                    var polyFillet = new Polyline();
                    polyFillet.AddVertexAt(0, new Point2d(ox, oy), 0, 0, 0);
                    polyFillet.AddVertexAt(1, new Point2d(ox + radius - r, oy), bulge, 0, 0);
                    polyFillet.AddVertexAt(2, new Point2d(ox + radius, oy + r), 0, 0, 0);
                    polyFillet.AddVertexAt(3, new Point2d(ox + radius, oy + height - r), bulge, 0, 0);
                    polyFillet.AddVertexAt(4, new Point2d(ox + radius - r, oy + height), 0, 0, 0);
                    polyFillet.AddVertexAt(5, new Point2d(ox, oy + height), 0, 0, 0);
                    polyFillet.Closed = false;

                    ctx.Style?.Apply(polyFillet, DrawingStyleManager.Role.OutlineBold);
                    ctx.Btr.AppendEntity(polyFillet);
                    ctx.Tr.AddNewlyCreatedDBObject(polyFillet, true);
                    return;
                }
            }

            var poly = new Polyline();
            poly.AddVertexAt(0, new Point2d(ox, oy), 0, 0, 0);
            poly.AddVertexAt(1, new Point2d(ox + radius, oy), 0, 0, 0);
            poly.AddVertexAt(2, new Point2d(ox + radius, oy + height), 0, 0, 0);
            poly.AddVertexAt(3, new Point2d(ox, oy + height), 0, 0, 0);
            poly.Closed = false;

            ctx.Style?.Apply(poly, DrawingStyleManager.Role.OutlineBold);
            ctx.Btr.AppendEntity(poly);
            ctx.Tr.AddNewlyCreatedDBObject(poly, true);
        }

        private static void DrawRingSymmetryAxis(FeatureDrivenDrawer.DrawingContext ctx, double ox, double oy, double height)
        {
            const double extend = 5.0;
            const double frameMargin = 5.0;
            const double lineSpacing = 3.0;

            var y0 = oy - extend;
            var y1 = oy + height + extend;

            try
            {
                var frameExtents = TemplateDrawingService.ComputeWhiteFrameExtents(ctx?.Ctx);
                if (frameExtents.HasValue)
                {
                    var frame = frameExtents.Value;
                    y0 = Math.Max(y0, frame.MinPoint.Y + frameMargin);
                    y1 = Math.Min(y1, frame.MaxPoint.Y - frameMargin);
                }
            }
            catch { }

            if (y1 <= y0)
            {
                y0 = oy;
                y1 = oy + height;
            }

            var line1 = new Line(new Point3d(ox, y0, 0), new Point3d(ox, y1, 0));
            ctx.Style?.Apply(line1, DrawingStyleManager.Role.BreakLine);
            ctx.Btr.AppendEntity(line1);
            ctx.Tr.AddNewlyCreatedDBObject(line1, true);

            var line2 = new Line(new Point3d(ox - lineSpacing, y0, 0), new Point3d(ox - lineSpacing, y1, 0));
            ctx.Style?.Apply(line2, DrawingStyleManager.Role.BreakLine);
            ctx.Btr.AppendEntity(line2);
            ctx.Tr.AddNewlyCreatedDBObject(line2, true);
        }

        private static void DrawOuterDiameterDimensionHalf(FeatureDrivenDrawer.DrawingContext ctx, double ox, double oy, double radius, double height,
            double diameter, double? tolPlus, double? tolMinus, double? diameterPrime)
        {
            var diameterVal = ctx.OriginalBag?.GetDoubleOrNull(KeyOuterDiameter1) ?? diameter;
            var diameterStr = ctx.OriginalBag?.GetString(KeyOuterDiameter1);
            var tolPlusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyOuterDiameter1TolPlus) ?? tolPlus;
            var tolMinusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyOuterDiameter1TolMinus) ?? tolMinus;
            var tolPlusStr = ctx.OriginalBag?.GetString(KeyOuterDiameter1TolPlus);
            var tolMinusStr = ctx.OriginalBag?.GetString(KeyOuterDiameter1TolMinus);
            
            var diameterPrimeVal = diameterPrime;
            if (ctx.OriginalBag != null)
            {
                var p = ctx.OriginalBag.GetDoubleOrNull(KeyOuterDiameter1Prime);
                if (p.HasValue) diameterPrimeVal = p.Value;
            }

            var baseText = FeatureDrivenDrawer.BuildDimensionText($"%%c{FeatureDrivenDrawer.FormatDimNumber(diameterVal, diameterStr)}", tolPlusVal, tolMinusVal, tolPlusStr, tolMinusStr);
            var dimText = diameterPrimeVal.HasValue && diameterPrimeVal.Value > 0
                ? baseText + $"\\X(%%c{FeatureDrivenDrawer.FormatDimNumber(diameterPrimeVal.Value)})"
                : baseText;

            AddLinearDim(
                ctx,
                new Point3d(ox, oy, 0),
                new Point3d(ox + radius, oy, 0),
                new Point3d(ox + radius / 2, oy - 25, 0),
                0,
                dimText,
                ApplyHalfSideDimStyle);
        }

        private static void DrawInnerHoleHalf(FeatureDrivenDrawer.DrawingContext ctx, double oxAxis, double xInnerRight, double yBottom, double height)
        {
            var yTop = yBottom + height;
            var lineRight = new Line(new Point3d(xInnerRight, yBottom, 0), new Point3d(xInnerRight, yTop, 0));
            ctx.Style?.Apply(lineRight, DrawingStyleManager.Role.Hidden);
            ctx.Btr.AppendEntity(lineRight);
            ctx.Tr.AddNewlyCreatedDBObject(lineRight, true);
        }

        private static void DrawInnerDiameterDimensionHalf(FeatureDrivenDrawer.DrawingContext ctx, double oxAxis, double xInnerRight, double yBottom, double height,
            double diameter, double? tolPlus, double? tolMinus, double? diameterPrime, double offsetY = 0)
        {
            var diameterVal = ctx.OriginalBag?.GetDoubleOrNull(KeyInnerDiameter2) ?? diameter;
            var diameterStr = ctx.OriginalBag?.GetString(KeyInnerDiameter2);
            var tolPlusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyInnerDiameter2TolPlus) ?? tolPlus;
            var tolMinusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyInnerDiameter2TolMinus) ?? tolMinus;
            var tolPlusStr = ctx.OriginalBag?.GetString(KeyInnerDiameter2TolPlus);
            var tolMinusStr = ctx.OriginalBag?.GetString(KeyInnerDiameter2TolMinus);

            var diameterPrimeVal = diameterPrime;
            if (ctx.OriginalBag != null)
            {
                var p = ctx.OriginalBag.GetDoubleOrNull(KeyInnerDiameter2Prime);
                if (p.HasValue) diameterPrimeVal = p.Value;
            }

            var baseText = FeatureDrivenDrawer.BuildDimensionText($"%%c{FeatureDrivenDrawer.FormatDimNumber(diameterVal, diameterStr)}", tolPlusVal, tolMinusVal, tolPlusStr, tolMinusStr);
            var dimText = diameterPrimeVal.HasValue && diameterPrimeVal.Value > 0
                ? baseText + $"\\X(%%c{FeatureDrivenDrawer.FormatDimNumber(diameterPrimeVal.Value)})"
                : baseText;

            double innerRadius = xInnerRight - oxAxis;
            var dimLineY = yBottom - 10;
            AddLinearDim(
                ctx,
                new Point3d(oxAxis, yBottom, 0),
                new Point3d(xInnerRight, yBottom + offsetY, 0),
                new Point3d(oxAxis + innerRadius / 2, dimLineY, 0),
                0,
                dimText,
                ApplyHalfSideDimStyle);
        }

        private static void DrawHeightDimensionHalf(FeatureDrivenDrawer.DrawingContext ctx, double ox, double oy, double radius,
            double height, double? tolPlus, double? tolMinus, double? heightPrime, double indentX = 0)
        {
            var heightVal = ctx.OriginalBag?.GetDoubleOrNull(KeyHeight1) ?? height;
            var heightStr = ctx.OriginalBag?.GetString(KeyHeight1);
            var tolPlusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyHeight1TolPlus) ?? tolPlus;
            var tolMinusVal = ctx.OriginalBag?.GetDoubleOrNull(KeyHeight1TolMinus) ?? tolMinus;
            var tolPlusStr = ctx.OriginalBag?.GetString(KeyHeight1TolPlus);
            var tolMinusStr = ctx.OriginalBag?.GetString(KeyHeight1TolMinus);

            var heightPrimeVal = heightPrime;
            if (ctx.OriginalBag != null)
            {
                var p = ctx.OriginalBag.GetDoubleOrNull(KeyHeight1Prime);
                if (p.HasValue) heightPrimeVal = p.Value;
            }

            var baseText = FeatureDrivenDrawer.BuildDimensionText(FeatureDrivenDrawer.FormatDimNumber(heightVal, heightStr), tolPlusVal, tolMinusVal, tolPlusStr, tolMinusStr);
            var dimText = heightPrimeVal.HasValue && heightPrimeVal.Value > 0
                ? baseText + $"\\X({FeatureDrivenDrawer.FormatDimNumber(heightPrimeVal.Value)})"
                : baseText;

            var xLine = ox + radius - indentX;
            
            FeatureDrivenDrawer.AddLinearDim(
                ctx,
                new Point3d(xLine, oy, 0),
                new Point3d(xLine, oy + height, 0),
                new Point3d(ox + radius + 20, oy + height / 2, 0),
                90,
                dimText);
        }

        private static void DrawPartContourHalf(FeatureDrivenDrawer.DrawingContext ctx, double ox, double oy, double forgingHeight,
            double outerDiaPrime, double? innerDiaPrime, double heightPrime)
        {
            var Rp = outerDiaPrime / 2.0;
            var h = heightPrime;
            var offsetY = (forgingHeight - h) / 2.0;
            var y0 = oy + offsetY;

            double minX = ox;
            if (innerDiaPrime.HasValue && innerDiaPrime.Value > 0)
            {
                minX = ox + innerDiaPrime.Value / 2.0;
            }
            double maxX = ox + Rp;

            var polyPart = new Polyline();
            polyPart.AddVertexAt(0, new Point2d(minX, y0), 0, 0, 0);
            polyPart.AddVertexAt(1, new Point2d(maxX, y0), 0, 0, 0);
            polyPart.AddVertexAt(2, new Point2d(maxX, y0 + h), 0, 0, 0);
            polyPart.AddVertexAt(3, new Point2d(minX, y0 + h), 0, 0, 0);
            polyPart.Closed = true;
            
            ctx.Style?.Apply(polyPart, DrawingStyleManager.Role.PartContour);
            ctx.Btr.AppendEntity(polyPart);
            ctx.Tr.AddNewlyCreatedDBObject(polyPart, true);
        }

        #endregion

        #region 本地标注样式辅助方法 (从 FeatureDrivenDrawer 复制以保持隔离)

        private static void ApplyHalfSideDimStyle(Dimension dim, FeatureDrivenDrawer.DrawingContext ctx)
        {
            TrySetDimProp(dim, "Dimse1", true);
            TrySetDimProp(dim, "Dimse2", false);

            try
            {
                TrySetDimProp(dim, "Dimsah", true);
                EnsureNoneBlock(ctx.Db, ctx.Tr);

                var bt = (BlockTable)ctx.Tr.GetObject(ctx.Db.BlockTableId, OpenMode.ForRead);
                if (bt.Has("_NONE"))
                {
                    dim.Dimblk1 = bt["_NONE"];
                }
            }
            catch { }
        }

        private static void EnsureNoneBlock(Database db, Transaction tr)
        {
            try
            {
                var bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
                if (!bt.Has("_NONE"))
                {
                    using (var btr = new BlockTableRecord())
                    {
                        btr.Name = "_NONE";
                        btr.Origin = Point3d.Origin;
                        bt.UpgradeOpen();
                        bt.Add(btr);
                        tr.AddNewlyCreatedDBObject(btr, true);
                    }
                }
            }
            catch { }
        }

        private static void AddLinearDim(FeatureDrivenDrawer.DrawingContext ctx, Point3d pt1, Point3d pt2, Point3d dimLinePt, 
            double rotationDeg, string textOverride, Action<Dimension, FeatureDrivenDrawer.DrawingContext> customizer = null)
        {
            try
            {
                var prevDb = HostApplicationServices.WorkingDatabase;
                HostApplicationServices.WorkingDatabase = ctx.Db;
                try
                {
                    double rotRad = rotationDeg * Math.PI / 180.0;
                    var dim = new RotatedDimension(rotRad, pt1, pt2, dimLinePt, textOverride, ctx.Db.Dimstyle);
                    try { dim.SetDatabaseDefaults(); } catch { }
                    dim.ColorIndex = 3; 

                    if (!string.IsNullOrEmpty(textOverride))
                    {
                        dim.DimensionText = textOverride;
                    }

                    try { dim.Normal = Vector3d.ZAxis; } catch { }
                    TryApplyDimSizeOverrides(dim);
                    TryApplyDimLayoutOverrides(dim);
                    
                    customizer?.Invoke(dim, ctx);

                    ctx.Style?.Apply(dim, DrawingStyleManager.Role.Dimension);
                    dim.ColorIndex = 3; 

                    ctx.Btr.AppendEntity(dim);
                    ctx.Tr.AddNewlyCreatedDBObject(dim, true);
                    try { dim.RecomputeDimensionBlock(true); } catch { }
                }
                finally
                {
                    HostApplicationServices.WorkingDatabase = prevDb;
                }
            }
            catch { }
        }

        private static void TryApplyDimSizeOverrides(Dimension dim)
        {
            if (dim == null) return;
            TrySetDimProp(dim, "Dimtxt", 3.5);
            TrySetDimProp(dim, "Dimasz", 2.5);
            TrySetDimProp(dim, "Dimgap", 1.0);
            TrySetDimProp(dim, "Dimexe", 1.0);
            TrySetDimProp(dim, "Dimexo", 0.0);
            TrySetDimProp(dim, "Dimtofl", true);
            TrySetDimProp(dim, "Dimatfit", 3);
            TrySetDimProp(dim, "Dimtad", 1);
            TrySetDimProp(dim, "Dimclrd", 3);
            TrySetDimProp(dim, "Dimclre", 3);
            TrySetDimProp(dim, "Dimclrt", 3);
        }

        private static void TryApplyDimLayoutOverrides(Dimension dim)
        {
            if (dim == null) return;
            TrySetDimProp(dim, "Dimtih", false);
            TrySetDimProp(dim, "Dimtoh", false);
            TrySetDimProp(dim, "Dimse1", false);
            TrySetDimProp(dim, "Dimse2", false);
        }

        private static void TrySetDimProp(object obj, string propName, double value)
        {
            if (obj == null) return;
            try
            {
                var prop = obj.GetType().GetProperty(propName);
                if (prop != null && prop.CanWrite && prop.PropertyType == typeof(double))
                    prop.SetValue(obj, value, null);
            }
            catch { }
        }

        private static void TrySetDimProp(object obj, string propName, bool value)
        {
            if (obj == null) return;
            try
            {
                var prop = obj.GetType().GetProperty(propName);
                if (prop != null && prop.CanWrite && prop.PropertyType == typeof(bool))
                    prop.SetValue(obj, value, null);
            }
            catch { }
        }
        
        private static void TrySetDimProp(object obj, string propName, int value)
        {
            if (obj == null) return;
            try
            {
                var prop = obj.GetType().GetProperty(propName);
                if (prop != null && prop.CanWrite && prop.PropertyType == typeof(int))
                    prop.SetValue(obj, value, null);
            }
            catch { }
        }
        
        private static ParamBag ScaleParamBag(ParamBag original, double scaleFactor)
        {
            if (original == null || Math.Abs(scaleFactor - 1.0) < 0.000001) return original;
            var newBag = new ParamBag();
            foreach(var k in original.GetKeys())
            {
                var v = original.GetString(k);
                if (k.Contains("Diameter") || k.Contains("Length") || k.Contains("Radius") || k.Contains("Prime") || k.Contains("Height") || k.Contains("Thickness") || k.Contains("Size"))
                {
                    if (double.TryParse(v, out var d))
                    {
                        newBag.Set(k, (d * scaleFactor).ToString("0.###"));
                    }
                    else { newBag.Set(k, v); }
                }
                else { newBag.Set(k, v); }
            }
            return newBag;
        }

        #endregion
    }
}