using ESRI.ArcGIS.ADF;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace KGIS.PlatformPlugin.Commands.Tools.TraceTool
{
    public class TraceFeedbackExClass : IDisplayFeedback, ITraceFeedback
    {
        private IScreenDisplay m_pScreenDisplay;
        private ILineSymbol m_pLineSymbol;
        private List<IPolyline> m_pListBeTracePolyline;
        private int m_nPolylineCount;
        private IPoint m_pPointStart;
        private IPoint m_pPointEnd;
        private IPoint m_pPointFrom;
        private IPolyline m_pPolylineBeTraced;
        private IPolyline m_pPolyline;
        private List<IPolyline> m_pListPolylineBeTraced;
        private List<IPolyline> m_pListPolyline;
        private List<IPoint> m_pListPointStart;
        private bool m_bAlongPolyline = true;
        private bool m_bIncludeAnchorFrom = true;
        private double m_dTraceTolerance;
        public IScreenDisplay Display
        {
            set
            {
                this.m_pScreenDisplay = value;
            }
        }
        public ISymbol Symbol
        {
            get
            {
                return this.m_pLineSymbol as ISymbol;
            }
            set
            {
            }
        }
        public List<IPolyline> ListBeTracePolyline
        {
            set
            {
                this.m_pListBeTracePolyline = value;
                this.m_nPolylineCount = this.m_pListBeTracePolyline.Count;
            }
        }
        public bool IncludeAnchorFrom
        {
            set
            {
                this.m_bIncludeAnchorFrom = value;
            }
        }
        public TraceFeedbackExClass()
        {
            this.m_pLineSymbol = new SimpleLineSymbolClass();
            this.m_pLineSymbol.Width = 2.0;
            (this.m_pLineSymbol as ISimpleLineSymbol).Style = esriSimpleLineStyle.esriSLSSolid;
            IColor color = new RgbColorClass
            {
                Red = 255,
                Blue = 0,
                Green = 0
            };
            this.m_pLineSymbol.Color = color;
            (this.m_pLineSymbol as ISymbol).ROP2 = esriRasterOpCode.esriROPNotXOrPen;
            this.m_pListPolylineBeTraced = new List<IPolyline>();
            this.m_pListPolyline = new List<IPolyline>();
            this.m_pListPointStart = new List<IPoint>();
        }
        public void Start(IPoint pPoint, IPoint pPointFrom, IPoint pPointEnd)
        {
            if (pPoint == null || pPoint.IsEmpty)
            {
                return;
            }
            if (this.m_pPolyline != null)
            {
                ComReleaser.ReleaseCOMObject(this.m_pPolyline);
            }
            this.m_pPolyline = new PolylineClass();
            this.m_pPolyline.SpatialReference = this.m_pScreenDisplay.DisplayTransformation.SpatialReference;
            this.m_dTraceTolerance = this.GetTraceTolerance();
            double num = 10000000.0;
            IPolyline beTracedPolyline = this.GetBeTracedPolyline(pPoint, ref num);
            if (num <= this.m_dTraceTolerance)
            {
                IProximityOperator proximityOperator = beTracedPolyline as IProximityOperator;
                this.m_pPointStart = proximityOperator.ReturnNearestPoint(pPoint, esriSegmentExtension.esriNoExtension);
                this.m_pPolylineBeTraced = ((beTracedPolyline as IClone).Clone() as IPolyline);
                this.m_pPointFrom = pPointFrom;
                this.m_pPointEnd = pPointEnd;
                if (this.m_pPointFrom == null)
                {
                    this.m_pPointFrom = this.m_pPointStart;
                }
                return;
            }
        }
        public void MoveTo(IPoint pPoint)
        {
            try
            {
                if (this.m_pPolylineBeTraced != null)
                {
                    double num = 0.0;
                    IPolyline beTracedPolyline = this.GetBeTracedPolyline(pPoint, this.m_pPolylineBeTraced, ref num);
                    if (num <= this.m_dTraceTolerance)
                    {
                        int num2 = this.IndexOf(beTracedPolyline);
                        if (num2 >= 0)
                        {
                            if (num2 + 1 == this.m_pListPolyline.Count)
                            {
                                ComReleaser.ReleaseCOMObject(this.m_pPolyline);
                                ComReleaser.ReleaseCOMObject(this.m_pPolylineBeTraced);
                                ComReleaser.ReleaseCOMObject(this.m_pPointStart);
                                this.m_pPolyline = this.m_pListPolyline[num2];
                                this.m_pPolylineBeTraced = this.m_pListPolylineBeTraced[num2];
                                this.m_pPointStart = this.m_pListPointStart[num2];
                                int count = this.m_pListPolyline.Count;
                                int num3 = num2 + 1;
                                if (num3 < count)
                                {
                                    for (int i = num3; i < count; i++)
                                    {
                                        ComReleaser.ReleaseCOMObject(this.m_pListPolyline[i]);
                                        ComReleaser.ReleaseCOMObject(this.m_pListPolylineBeTraced[i]);
                                        ComReleaser.ReleaseCOMObject(this.m_pListPointStart[i]);
                                    }
                                }
                                this.m_pListPolyline.RemoveRange(num2, count - num2);
                                this.m_pListPolylineBeTraced.RemoveRange(num2, count - num2);
                                this.m_pListPointStart.RemoveRange(num2, count - num2);
                            }
                        }
                        else
                        {
                            if (beTracedPolyline != this.m_pPolylineBeTraced && this.IsTouches(this.m_pPolyline, beTracedPolyline))
                            {
                                IPoint intersect = this.GetIntersect(beTracedPolyline, this.m_pPolyline);
                                if (intersect != null)
                                {
                                    this.m_pListPolyline.Add(this.m_pPolyline);
                                    this.m_pListPolylineBeTraced.Add(this.m_pPolylineBeTraced);
                                    this.m_pListPointStart.Add(this.m_pPointStart);
                                    this.m_pPolylineBeTraced = ((beTracedPolyline as IClone).Clone() as IPolyline);
                                    this.m_pPolyline = new PolylineClass();
                                    this.m_pPolyline.SpatialReference = this.m_pScreenDisplay.DisplayTransformation.SpatialReference;
                                    this.m_pPointStart = intersect;
                                }
                            }
                        }
                        IProximityOperator proximityOperator = this.m_pPolylineBeTraced as IProximityOperator;
                        IPoint point = proximityOperator.ReturnNearestPoint(pPoint, esriSegmentExtension.esriNoExtension);
                        if (point != null && !(point as IRelationalOperator).Equals(this.m_pPointStart))
                        {
                            if (this.m_pPolylineBeTraced != null && !this.m_pPolylineBeTraced.IsEmpty)
                            {
                                if (this.m_pPolylineBeTraced.IsClosed)
                                {
                                    IPolyline fromCloseTraced = this.GetFromCloseTraced(this.m_pPolylineBeTraced, this.m_pPointStart, point, this.m_pPolyline);
                                    if (this.m_pPolyline != null)
                                    {
                                        this.m_pPolyline.SetEmpty();
                                        if (fromCloseTraced != null && !fromCloseTraced.IsEmpty)
                                        {
                                            (this.m_pPolyline as ISegmentCollection).AddSegmentCollection(fromCloseTraced as ISegmentCollection);
                                        }
                                        ComReleaser.ReleaseCOMObject(fromCloseTraced);
                                    }
                                }
                                else
                                {
                                    IPolyline fromNotCloseTraced = this.GetFromNotCloseTraced(this.m_pPolylineBeTraced, this.m_pPointStart, point);
                                    if (this.m_pPolyline != null)
                                    {
                                        this.m_pPolyline.SetEmpty();
                                        if (fromNotCloseTraced != null && !fromNotCloseTraced.IsEmpty)
                                        {
                                            (this.m_pPolyline as ISegmentCollection).AddSegmentCollection(fromNotCloseTraced as ISegmentCollection);
                                        }
                                        ComReleaser.ReleaseCOMObject(fromNotCloseTraced);
                                    }
                                }
                            }
                            this.Refresh(0);
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                //KGIS.Framework.Utils.LogAPI.Debug(ex);
            }
        }
        public void Refresh(int hDC)
        {
            this.m_pScreenDisplay.StartDrawing(this.m_pScreenDisplay.hDC, -1);
            IPolyline polyline = null;
            try
            {
                polyline = new PolylineClass();
                this.m_pPolyline.SpatialReference = this.m_pScreenDisplay.DisplayTransformation.SpatialReference;
                int count = this.m_pListPolyline.Count;
                for (int i = 0; i < count; i++)
                {
                    (polyline as ISegmentCollection).AddSegmentCollection(this.m_pListPolyline[i] as ISegmentCollection);
                }
                if (this.m_pPolyline != null && !this.m_pPolyline.IsEmpty)
                {
                    (polyline as ISegmentCollection).AddSegmentCollection(this.m_pPolyline as ISegmentCollection);
                }
                if (polyline != null && !polyline.IsEmpty)
                {
                    IPointCollection pointCollection = polyline as IPointCollection;
                    if (this.m_pPointEnd != null && !this.m_pPointEnd.IsEmpty)
                    {
                        pointCollection.InsertPoints(0, 1, ref this.m_pPointEnd);
                    }
                    if (this.m_bIncludeAnchorFrom && this.m_pPointFrom != null && !this.m_pPointFrom.IsEmpty)
                    {
                        IPointCollection arg_104_0 = pointCollection;
                        IPoint arg_104_1 = this.m_pPointFrom;
                        object value = Missing.Value;
                        object value2 = Missing.Value;
                        arg_104_0.AddPoint(arg_104_1, ref value, ref value2);
                    }
                    polyline.SimplifyNetwork();
                }
                if (this.m_pLineSymbol != null)
                {
                    this.m_pScreenDisplay.SetSymbol(this.m_pLineSymbol as ISymbol);
                    this.m_pScreenDisplay.DrawPolyline(polyline);
                }
            }
            catch (Exception ex)
            {
                //KGIS.Framework.Utils.LogAPI.Debug(ex);
            }
            finally
            {
                ComReleaser.ReleaseCOMObject(polyline);
            }
            this.m_pScreenDisplay.FinishDrawing();
        }
        public IPolyline Stop(IPoint pPoint)
        {
            if (pPoint == null)
            {
                ComReleaser.ReleaseCOMObject(this.m_pPolyline);
                this.m_pPolyline = null;
                return null;
            }
            try
            {
                IPolyline polyline = new PolylineClass();
                this.m_pPolyline.SpatialReference = this.m_pScreenDisplay.DisplayTransformation.SpatialReference;
                int count = this.m_pListPolyline.Count;
                for (int i = 0; i < count; i++)
                {
                    (polyline as ISegmentCollection).AddSegmentCollection(this.m_pListPolyline[i] as ISegmentCollection);
                }
                if (this.m_pPolyline != null && !this.m_pPolyline.IsEmpty)
                {
                    (polyline as ISegmentCollection).AddSegmentCollection(this.m_pPolyline as ISegmentCollection);
                }
                polyline.SimplifyNetwork();
                return polyline;
            }
            catch (Exception ex)
            {
                //KGIS.Framework.Utils.LogAPI.Debug(ex);
            }
            finally
            {
                ComReleaser.ReleaseCOMObject(this.m_pPolyline);
                this.m_pPolyline = null;
                foreach (IPolyline current in this.m_pListPolyline)
                {
                    ComReleaser.ReleaseCOMObject(current);
                }
                this.m_pListPolyline.Clear();
            }
            return null;
        }
        private IPolyline GetFromNotCloseTraced(IPolyline pPolyline, IPoint pPointStart, IPoint pPointEnd)
        {
            IRelationalOperator relationalOperator = pPointStart as IRelationalOperator;
            IRelationalOperator relationalOperator2 = pPointEnd as IRelationalOperator;
            if (relationalOperator.Equals(pPointEnd))
            {
                return null;
            }
            IPolyline polyline = (pPolyline as IClone).Clone() as IPolyline;
            bool flag = false;
            int num = -1;
            int num2 = -1;
            polyline.SplitAtPoint(pPointStart, true, false, out flag, out num, out num2);
            bool flag2 = false;
            int num3 = -1;
            int num4 = -1;
            polyline.SplitAtPoint(pPointEnd, true, false, out flag2, out num3, out num4);
            IPointCollection pointCollection = polyline as IPointCollection;
            int pointCount = pointCollection.PointCount;
            num2 = -1;
            num4 = -1;
            int num5 = 0;
            while (num5 < pointCount && (num2 < 0 || num4 < 0))
            {
                IPoint other = pointCollection.get_Point(num5);
                if (!relationalOperator.Equals(other))
                {
                    if (relationalOperator2.Equals(other))
                    {
                        num4 = num5;
                    }
                }
                else
                {
                    num2 = num5;
                }
                num5++;
            }
            IPolyline polyline2 = new PolylineClass();
            polyline2.SpatialReference = this.m_pScreenDisplay.DisplayTransformation.SpatialReference;
            ISegmentCollection segmentCollection = polyline as ISegmentCollection;
            if (num2 <= num4)
            {
                if (num2 < num4)
                {
                    for (int i = num2; i <= num4 - 1; i++)
                    {
                        ISegmentCollection arg_10E_0 = polyline2 as ISegmentCollection;
                        ISegment arg_10E_1 = segmentCollection.get_Segment(i);
                        object value = Missing.Value;
                        object value2 = Missing.Value;
                        arg_10E_0.AddSegment(arg_10E_1, ref value, ref value2);
                    }
                }
            }
            else
            {
                for (int j = num2 - 1; j >= num4; j--)
                {
                    ISegmentCollection arg_14D_0 = polyline2 as ISegmentCollection;
                    ISegment arg_14D_1 = segmentCollection.get_Segment(j);
                    object value3 = Missing.Value;
                    object value4 = Missing.Value;
                    arg_14D_0.AddSegment(arg_14D_1, ref value3, ref value4);
                }
            }
            ComReleaser.ReleaseCOMObject(polyline);
            polyline2.SimplifyNetwork();
            return polyline2;
        }
        private IPolyline GetFromCloseTraced(IPolyline pPolyline, IPoint pPointStart, IPoint pPointEnd, IPolyline pPolylinePre)
        {
            if (pPolyline == null || pPolyline.IsEmpty)
            {
                return null;
            }
            IRelationalOperator relationalOperator = pPointStart as IRelationalOperator;
            IRelationalOperator relationalOperator2 = pPointEnd as IRelationalOperator;
            IPolyline polyline = (pPolyline as IClone).Clone() as IPolyline;
            bool flag = false;
            int num = -1;
            int num2 = -1;
            polyline.SplitAtPoint(pPointStart, true, false, out flag, out num, out num2);
            bool flag2 = false;
            int num3 = -1;
            int num4 = -1;
            polyline.SplitAtPoint(pPointEnd, true, false, out flag2, out num3, out num4);
            IPointCollection pointCollection = polyline as IPointCollection;
            int num5 = -1;
            int num6 = -1;
            int pointCount = pointCollection.PointCount;
            int num7 = 0;
            while (num7 < pointCount && (num5 < 0 || num6 < 0))
            {
                IPoint other = pointCollection.get_Point(num7);
                if (!relationalOperator.Equals(other))
                {
                    if (relationalOperator2.Equals(other))
                    {
                        num6 = num7;
                    }
                }
                else
                {
                    num5 = num7;
                }
                num7++;
            }
            if (num5 == num6)
            {
                return null;
            }
            double num8 = 0.0;
            if (pPolylinePre != null || !pPolylinePre.IsEmpty)
            {
                num8 = pPolylinePre.Length / pPolyline.Length;
            }
            IPolyline result;
            if (num8 < 0.01)
            {
                if (num5 != num6)
                {
                    IPolyline fromClosedPolyline = PolylineEx.GetFromClosedPolyline(polyline, num5, num6, true);
                    IPolyline fromClosedPolyline2 = PolylineEx.GetFromClosedPolyline(polyline, num5, num6, false);
                    if (fromClosedPolyline2.Length >= fromClosedPolyline.Length)
                    {
                        ComReleaser.ReleaseCOMObject(fromClosedPolyline2);
                        this.m_bAlongPolyline = true;
                        result = fromClosedPolyline;
                    }
                    else
                    {
                        ComReleaser.ReleaseCOMObject(fromClosedPolyline);
                        this.m_bAlongPolyline = false;
                        result = fromClosedPolyline2;
                    }
                }
                else
                {
                    result = null;
                }
            }
            else
            {
                result = PolylineEx.GetFromClosedPolyline(polyline, num5, num6, this.m_bAlongPolyline);
            }
            ComReleaser.ReleaseCOMObject(polyline);
            return result;
        }
        private IPolyline GetBeTracedPolyline(IPoint pPoint, ref double dMinDistanceRtn)
        {
            double num = 10000000.0;
            IPolyline result = null;
            for (int i = 0; i < this.m_nPolylineCount; i++)
            {
                IPolyline polyline = this.m_pListBeTracePolyline[i];
                IProximityOperator proximityOperator = polyline as IProximityOperator;
                double num2 = proximityOperator.ReturnDistance(pPoint);
                if (num2 < num)
                {
                    num = num2;
                    result = polyline;
                }
            }
            dMinDistanceRtn = num;
            return result;
        }
        private IPolyline GetBeTracedPolyline(IPoint pPoint, IPolyline pPolylineBeTraced, ref double dMinDistanceRtn)
        {
            double num = 10000000.0;
            IPolyline result = null;
            IRelationalOperator relationalOperator = pPolylineBeTraced as IRelationalOperator;
            for (int i = 0; i < this.m_nPolylineCount; i++)
            {
                IPolyline polyline = this.m_pListBeTracePolyline[i];
                if (!relationalOperator.Equals(polyline))
                {
                    IProximityOperator proximityOperator = polyline as IProximityOperator;
                    double num2 = proximityOperator.ReturnDistance(pPoint);
                    if (num2 < num)
                    {
                        num = num2;
                        result = polyline;
                    }
                }
            }
            IProximityOperator proximityOperator2 = pPolylineBeTraced as IProximityOperator;
            double num3 = proximityOperator2.ReturnDistance(pPoint);
            if (num3 <= num)
            {
                dMinDistanceRtn = num3;
                return pPolylineBeTraced;
            }
            dMinDistanceRtn = num;
            return result;
        }
        private bool IsTouches(IPolyline pPolyline1, IPolyline pPolyline2)
        {
            IProximityOperator proximityOperator = pPolyline1 as IProximityOperator;
            return proximityOperator.ReturnDistance(pPolyline2) < 1E-05;
        }
        private IPoint GetIntersect(IPolyline pPolyline1, IPolyline pPolyline2)
        {
            ITopologicalOperator topologicalOperator = pPolyline1 as ITopologicalOperator;
            IGeometry geometry = topologicalOperator.Intersect(pPolyline2, esriGeometryDimension.esriGeometry0Dimension);
            if (geometry == null || geometry.IsEmpty)
            {
                return null;
            }
            if (geometry is IMultipoint)
            {
                return (geometry as IPointCollection).get_Point(0);
            }
            return null;
        }
        private double GetTraceTolerance()
        {
            double num = 20.0;
            int num2 = this.m_pScreenDisplay.DisplayTransformation.get_DeviceFrame().right - this.m_pScreenDisplay.DisplayTransformation.get_DeviceFrame().left;
            double width = this.m_pScreenDisplay.DisplayTransformation.VisibleBounds.Width;
            double num3 = width / (double)num2;
            return num * num3;
        }
        private int IndexOf(IPolyline pPolylineNearest)
        {
            IRelationalOperator relationalOperator = pPolylineNearest as IRelationalOperator;
            int count = this.m_pListPolylineBeTraced.Count;
            for (int i = count - 1; i >= 0; i--)
            {
                if (relationalOperator.Equals(this.m_pListPolylineBeTraced[i]))
                {
                    return i;
                }
            }
            return -1;
        }
        private bool IsAlongPolyline(IPolyline pPolylineNearest, IPolyline pPolylinePre, int nPointIndex1, int nPointIndex2)
        {
            IPoint fromPoint = pPolylineNearest.FromPoint;
            IRelationalOperator relationalOperator = fromPoint as IRelationalOperator;
            if (!relationalOperator.Within(pPolylinePre))
            {
                return nPointIndex1 <= nPointIndex2;
            }
            return nPointIndex1 > nPointIndex2;
        }
        private bool IsAlongPolyline(IPolyline pPolylineNearest, IPolyline pPolylinePre)
        {
            IPolyline o = null;
            IPolyline o2 = null;
            IPoint point = null;
            bool result = false;
            try
            {
                o = ((pPolylineNearest as IClone).Clone() as IPolyline);
                o2 = ((pPolylinePre as IClone).Clone() as IPolyline);
                point = new PointClass();
                double dTraceTolerance = this.m_dTraceTolerance;
                double num = 0.0;
                int item = 0;
                int num2 = 0;
                bool flag = false;
                IHitTest hitTest = pPolylineNearest as IHitTest;
                IPointCollection pointCollection = pPolylinePre as IPointCollection;
                int pointCount = pointCollection.PointCount;
                List<int> list = new List<int>();
                for (int i = 0; i < pointCount; i++)
                {
                    IPoint queryPoint = pointCollection.get_Point(i);
                    if (hitTest.HitTest(queryPoint, dTraceTolerance, esriGeometryHitPartType.esriGeometryPartVertex, point, ref num, ref num2, ref item, ref flag) && !list.Contains(item))
                    {
                        list.Add(item);
                        if (list.Count == 3)
                        {
                            result = this.IsAlong(list);
                            break;
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message, ex);
            }
            finally
            {
                ComReleaser.ReleaseCOMObject(o);
                ComReleaser.ReleaseCOMObject(o2);
                ComReleaser.ReleaseCOMObject(point);
            }
            return result;
        }
        private bool IsAlong(List<int> pListVertexIndex)
        {
            return false;
        }
    }
}