using netDxf.Entities;
using netDxf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MECF.Framework.UI.Core.DxfScript
{
    /// <summary>
    /// 名称：RecognizeShape类
    /// 作用：识别dxf文件中的图形 转化为自定义对象
    /// </summary>
    public partial class GasDxfDocument
    {

        private void RecognizeShape()
        {
            RecognizeGasAITValve();
            RecognizeGasButton();
            RecognizeAnalogControl4Jet();
        }

        //识别文字是否在圆内
        private bool IsTextInCircle(GasText text, GasCircle circle)
        {
            double x, y;
            x = text.X;
            y = text.Y;
            if (circle.Contains(x, y))
            {
                return true;
            }

            return false;
        }
        //判断多线段是否是矩形
        private bool IsPolyLineRect(GasPolyLine polyLine)
        {
            if (polyLine.InnerLines.Count != 4)
            {
                return false;
            }
            GasLine lineH1, lineH2, lineV1, lineV2;
            lineH1 = lineH2 = lineV1 = lineV2 = null;
            for (int i = 0; i < 4; i++)
            {
                GasLine line = polyLine.InnerLines[i];
                if (line.IsHorizental)
                {
                    if (lineH1 == null)
                    {
                        lineH1 = line;
                    }
                    else if (lineH2 == null)
                    {
                        lineH2 = line;
                    }
                    else
                    {
                        return false;
                    }
                }
                else if (line.IsVertical)
                {
                    if (lineV1 == null)
                    {
                        lineV1 = line;
                    }
                    else if (lineV2 == null)
                    {
                        lineV2 = line;
                    }
                    else
                    {
                        return false;
                    }
                }
            }
            if (lineH1 != null && lineH2 != null && lineV1 != null && lineV2 != null)
            {
                if (lineH1.CornerAt(lineV1) && lineH1.CornerAt(lineV2) && lineH2.CornerAt(lineV1) && lineH2.CornerAt(lineV2))
                {
                    return true;
                }
            }
            return false;
        }
        //判断文字是否在矩形内
        private bool IsTextInRect(GasText text, GasPolyLine polyLine)
        {
            if (!IsPolyLineRect(polyLine))
            {
                return false;
            }

            double x, y;
            x = text.X;
            y = text.Y;
            if (!polyLine.Contains(x, y))
            {
                return false;
            }
            return true;
        }
        //识别漏斗
        private void RecognizeGasFunnel(DxfDocument dxf, string blockName = "HV")
        {
            foreach (var entity in dxf.Entities.All)
            {
                if (entity.Type != EntityType.Insert) continue;

                Insert insert = (Insert)entity;
                var block = insert.Block;

                if (block == null || block.Name != blockName) continue;

                GasFunnel gasFunnel = new GasFunnel(insert.Position.X, insert.Position.Y, insert.Position.Z, insert.Scale.X, insert.Scale.Y, insert.Scale.Z, insert.Rotation);
                gasFunnel.SetGasLines(insert);
                Funnels.Add(gasFunnel);

            }
        }
        //识别阀门
        private void RecognizeGasAITValve()
        {
            //识别可调节阀门
            for (int textId = 0; textId < Texts.Count; textId++)
            {
                //遍历文本
                GasText theText = Texts[textId];
                for (int circleId = 0; circleId < Circles.Count; circleId++)
                {
                    //针对每个文本，再去遍历圆圈

                    GasCircle theCircle = Circles[circleId];
                    if (IsTextInCircle(theText, theCircle))
                    {
                        //文本在圆圈内,组成valve
                        Valves.Add(new GasAITValve(theCircle, theText, null));
                        Texts.RemoveAt(textId);
                        Circles.RemoveAt(circleId);
                        textId--;
                        circleId--;
                        break;
                    }
                }
            }
            //识别不可调节阀门
            for (int valveId = 0; valveId < Valves.Count; valveId++)
            {
                for (int polyId = 0; polyId < PolyLines.Count; polyId++)
                {
                    GasPolyLine thePolyLine = PolyLines[polyId];
                    if (!IsPolyLineRect(thePolyLine))
                    {
                        continue;
                    }
                    GasAITValve theValve = Valves[valveId];
                    double rectWidth = Math.Abs(thePolyLine.InnerLines[0].X1 - thePolyLine.InnerLines[0].X2);
                    if (rectWidth > 3 * theValve.InnerCircle.R)
                    {
                        continue;
                    }
                    if (thePolyLine.Contains(theValve.InnerCircle.X, theValve.InnerCircle.Y))
                    {
                        theValve.InnerPolyLine = thePolyLine;
                        PolyLines.RemoveAt(polyId);
                        polyId--;
                        theValve.Enable = false;
                        break;
                    }
                }
            }
        }
        //识别按钮
        private void RecognizeGasButton()
        {


            for (int polyId = 0; polyId < PolyLines.Count; polyId++)
            {

                GasText foundText = null;
                int foundCount = 0;
                GasPolyLine thePolyLine = PolyLines[polyId];
                if (!IsPolyLineRect(thePolyLine))
                {
                    continue;
                }
                int textId;
                for (textId = 0; textId < Texts.Count; textId++)
                {
                    GasText theText = Texts[textId];

                    if (!IsTextInRect(theText, thePolyLine))
                    {
                        continue;
                    }
                    if (foundText == null)
                    {
                        foundText = theText;
                    }
                    foundCount++;

                }
                if (foundText != null && foundCount != 2)
                {
                    double minY, maxY;
                    minY = Math.Min(thePolyLine.InnerLines[0].Y1, thePolyLine.InnerLines[0].Y2);
                    maxY = Math.Max(thePolyLine.InnerLines[0].Y1, thePolyLine.InnerLines[0].Y2);
                    minY = Math.Min(thePolyLine.InnerLines[1].Y1, minY);
                    minY = Math.Min(thePolyLine.InnerLines[1].Y2, minY);
                    minY = Math.Min(thePolyLine.InnerLines[2].Y1, minY);
                    minY = Math.Min(thePolyLine.InnerLines[2].Y2, minY);
                    minY = Math.Min(thePolyLine.InnerLines[3].Y1, minY);
                    minY = Math.Min(thePolyLine.InnerLines[3].Y2, minY);
                    maxY = Math.Max(thePolyLine.InnerLines[1].Y1, maxY);
                    maxY = Math.Max(thePolyLine.InnerLines[1].Y2, maxY);
                    maxY = Math.Max(thePolyLine.InnerLines[2].Y1, maxY);
                    maxY = Math.Max(thePolyLine.InnerLines[2].Y2, maxY);
                    maxY = Math.Max(thePolyLine.InnerLines[3].Y1, maxY);
                    maxY = Math.Max(thePolyLine.InnerLines[3].Y2, maxY);
                    if (maxY - minY > 50)
                    {
                        continue;
                    }
                    Buttons.Add(new GasButton(thePolyLine, foundText));
                    Texts.Remove(foundText);
                    PolyLines.RemoveAt(polyId);
                    polyId--;
                }
            }
        }
        //识别analog mfc
        private void RecognizeAnalogControl4Jet()
        {
            for (int buttonId = 0; buttonId < Buttons.Count; buttonId++)
            {
                GasButton theButton = Buttons[buttonId];
                GasText text1, text2;
                text1 = text2 = null;

                for (int textId = 0; textId < Texts.Count; textId++)
                {
                    if (IsTextInRect(Texts[textId], theButton.InnerPolyLine))
                    {
                        if (text1 == null)
                        {
                            text1 = Texts[textId];
                        }
                        else if (text2 == null)
                        {
                            text2 = Texts[textId];
                            break;
                        }
                    }
                }
                if (text1 == null || text2 == null)
                {
                    continue;
                }
                GasLine theHLine = null;
                GasLine theVLine = null;
                bool failed = false;
                for (int lineId = 0; lineId < Lines.Count; lineId++)
                {
                    GasLine theLine = Lines[lineId];
                    double x, y;
                    x = (theLine.X1 + theLine.X2) / 2;
                    y = (theLine.Y1 + theLine.Y2) / 2;
                    if (theButton.Contains(x, y))
                    {
                        if (theLine.IsHorizental)
                        {
                            if (theHLine == null)
                            {
                                double theLineLength = Math.Abs(theLine.X1 - theLine.X2);
                                double theButtonWidth = Math.Abs(theButton.InnerPolyLine.InnerLines[0].X1 - theButton.InnerPolyLine.InnerLines[0].X2);
                                if (Math.Abs(theLineLength - theButtonWidth) < GasBaseShape.E)
                                {
                                    theHLine = theLine;
                                }
                                else
                                {
                                    Lines.RemoveAt(lineId);
                                    lineId--;
                                }

                            }
                            else
                            {


                                failed = true;
                                break;//不是analog，下一个button
                            }
                        }
                        else if (theLine.IsVertical)
                        {
                            if (theVLine == null)
                            {
                                theVLine = theLine;
                            }
                            else
                            {
                                failed = true;
                                break;//不是analog，下一个button
                            }
                        }
                        else
                        {
                            continue;//线段不在poly内，下一个线段
                        }
                    }
                }
                if (failed)
                {
                    continue;  //不是analog，下一个button
                }
                if (theHLine == null || theVLine == null)
                {
                    continue;//不是analog，下一个button
                }
                GasPolyLine polyUp, polyLeft, polyRight;
                //按上、右、下、左顺序排列顶点
                double x1, y1, x2, y2, x3, y3, x4, y4, x5, y5, x6, y6, x7, y7;
                double x8, y8;//中心点
                x1 = Math.Min(theButton.InnerPolyLine.InnerLines[0].X1, theButton.InnerPolyLine.InnerLines[0].X2);
                y1 = theButton.InnerPolyLine.InnerLines[0].Y1;
                x2 = Math.Max(theButton.InnerPolyLine.InnerLines[0].X1, theButton.InnerPolyLine.InnerLines[0].X2);
                y2 = y1;
                x3 = x2;
                y3 = theHLine.Y1;
                x4 = x2;
                y4 = theButton.InnerPolyLine.InnerLines[2].Y1;
                x5 = theVLine.X1;
                y5 = y4;
                x6 = x1;
                y6 = y4;
                x7 = x1;
                y7 = y3;
                x8 = x5;
                y8 = y3;

                polyUp = new GasPolyLine();
                polyUp.AddLine(new GasLine(x1, y1, x2, y2));
                polyUp.AddLine(new GasLine(x2, y2, x3, y3));
                polyUp.AddLine(new GasLine(x3, y3, x7, y7));
                polyUp.AddLine(new GasLine(x7, y7, x1, y1));
                polyLeft = new GasPolyLine();
                polyLeft.AddLine(new GasLine(x7, y7, x8, y8));
                polyLeft.AddLine(new GasLine(x8, y8, x5, y5));
                polyLeft.AddLine(new GasLine(x5, y5, x6, y6));
                polyLeft.AddLine(new GasLine(x6, y6, x7, y7));
                polyRight = new GasPolyLine();
                polyRight.AddLine(new GasLine(x8, y7, x3, y3));
                polyRight.AddLine(new GasLine(x3, y3, x4, y4));
                polyRight.AddLine(new GasLine(x4, y4, x5, y5));
                polyRight.AddLine(new GasLine(x5, y5, x8, y8));
                GasText textTop, textLeft, textRight;
                textTop = textLeft = textRight = null;
                GasButton TopButton, LeftButton, RightButton;
                TopButton = LeftButton = RightButton = null;
                if (IsTextInRect(theButton.InnerText, polyUp))
                {
                    textTop = theButton.InnerText;
                }
                else if (IsTextInRect(text1, polyUp))
                {
                    textTop = text1;
                }
                else if (IsTextInRect(text2, polyUp))
                {
                    textTop = text2;
                }
                else
                {
                    continue;//没有text，下一个button
                }
                if (IsTextInRect(theButton.InnerText, polyLeft))
                {
                    textLeft = theButton.InnerText;
                }
                else if (IsTextInRect(text1, polyLeft))
                {
                    textLeft = text1;
                }
                else if (IsTextInRect(text2, polyLeft))
                {
                    textLeft = text2;
                }
                else
                {
                    continue;//没有text，下一个button
                }
                if (IsTextInRect(theButton.InnerText, polyRight))
                {
                    textRight = theButton.InnerText;
                }
                else if (IsTextInRect(text1, polyRight))
                {
                    textRight = text1;
                }
                else if (IsTextInRect(text2, polyRight))
                {
                    textRight = text2;
                }
                else
                {
                    continue;//没有text，下一个button
                }
                if (textTop == null || textLeft == null || textRight == null)
                {
                    continue;//没有text，下一个button
                }
                TopButton = new GasButton(polyUp, textTop);
                LeftButton = new GasButton(polyLeft, textLeft);
                RightButton = new GasButton(polyRight, textRight);
                LeftButton.InnerText.Text = "0.00";
                RightButton.InnerText.Text = "slm";
                Analogs.Add(new GasAnalogControl4Jet(theButton, TopButton, LeftButton, RightButton));
                Lines.Remove(theHLine);
                Lines.Remove(theVLine);
                Texts.Remove(text1);
                Texts.Remove(text2);
                Buttons.RemoveAt(buttonId);
                buttonId--;

            }
        }
    }
}