using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GeoScene.Globe;
using GeoScene.Data;
using GeoScene.Engine;
using System.Drawing;

namespace Cyberpipe
{
    class ClassDoubleScreenCompare
    {
        public static GSOFeature getSameFeatureFromOtherGlobe(GSOFeature feature, 
            GSOGlobeControl globeControl1, GSOGlobeControl globeControl2,double bufferWidth,GSOGeoPolygon3D resPolygon)
        {
            GSOLayer layer;
            GSOFeatures features = new GSOFeatures();

            if (!feature.Dataset.Caption.StartsWith("施工"))
            {
                layer = feature.Dataset.Caption == "供电管线"
                    ? globeControl2.Globe.Layers.GetLayerByCaption("施工电力管线")
                    : globeControl2.Globe.Layers.GetLayerByCaption("施工" + feature.Dataset.Caption);

                GSOFeatures fs = layer.FindFeaturesInPolygon(resPolygon, false);

                for (int i = 0; i < fs.Length; i++)
                {
                    if (isSimilarFeature(feature, fs[i], globeControl1, globeControl2, bufferWidth))
                        features.Add(fs[i]);
                }
            }
            else
            {
                layer = feature.Dataset.Caption == "施工电力管线"
                    ? globeControl1.Globe.Layers.GetLayerByCaption("供电管线")
                    : globeControl1.Globe.Layers.GetLayerByCaption(feature.Dataset.Caption.Replace("施工", ""));

                GSOFeatures fs = layer.FindFeaturesInPolygon(resPolygon, false);

                for (int i = 0; i < fs.Length; i++)
                {
                    if (isSimilarFeature(fs[i], feature, globeControl1, globeControl2, bufferWidth))
                        features.Add(fs[i]);
                }
            }
            return getMostSimilarFeatureFromFeatures(feature, features);
        }

        private static GSOFeature getMostSimilarFeatureFromFeatures(GSOFeature feature, GSOFeatures features)
        {
            double maxLength = 0;
            GSOFeature f = new GSOFeature();
            GSOGeoPolyline3D line = feature.Geometry as GSOGeoPolyline3D;

            if (features.Length == 0) return null;
            if (features.Length == 1)
            {
                f = features[0];
                f.HighLight = true;
            }
            else
            {
                for (int m = 0; m < features.Length; m++)
                {
                    GSOGeoPolyline3D tempSGLine = features[m].Geometry as GSOGeoPolyline3D;

                    double tempLength = tempSGLine.GetSpaceLength(false, 6378137);
                    double lengthAbs = Math.Abs(tempLength - line.GetSpaceLength(false, 6378137));
                    if (m == 0)
                    {
                        f = features[0];
                        f.HighLight = true;
                        maxLength = lengthAbs;
                    }
                    else if (lengthAbs < maxLength)
                    {
                        f = features[m];
                        f.HighLight = true;
                        maxLength = lengthAbs;
                    }
                }
            }
            return f;
        }

        private static bool isSameFeature(GSOFeature feature1, GSOFeature feature2, GSOLayer layer, double bufferWidth)
        {
            GSOGeoPolyline3D line = feature1.Geometry as GSOGeoPolyline3D;
            GSOGeoPolygon3D bufferPolygon = line.CreateBuffer(bufferWidth * 2, true, 5, true, false);

            if (bufferPolygon == null) return false;

            GSOFeatures featuresInLayer = layer.FindFeaturesInPolygon(bufferPolygon, true);

            if (featuresInLayer == null || featuresInLayer.Length <= 0)
                return false;

            for (int i = 0; i < featuresInLayer.Length; i++)
            {
                if (featuresInLayer[i].Name == feature2.Name)
                {
                    return true;
                    break;
                }
            }
            return false;
        }

        private static bool isSimilarFeature(GSOFeature srcFeature, GSOFeature dscFeature, 
            GSOGlobeControl globeControl1,GSOGlobeControl globeControl2,double bufferWidth)
        {
            GSOLayer dscLayer = globeControl2.Globe.Layers.GetLayerByCaption(dscFeature.Dataset.Caption);
            GSOLayer srcLayer = globeControl1.Globe.Layers.GetLayerByCaption(srcFeature.Dataset.Caption);

            if (!isSameFeature(srcFeature, dscFeature, dscLayer, bufferWidth)
                && !isSameFeature(dscFeature, srcFeature, srcLayer, bufferWidth))
                return false;
            return true;
        }

        public static void CalculateDistance(GSOGeoPolyline3D line1, GSOGeoPolyline3D line2,
            out double horizonDistance, out double verticalDistance, GSOGlobeControl globeControl1, GSOGlobeControl globeControl2)
        {
            GSOPoint3d pntIntersect1 = new GSOPoint3d();
            GSOPoint3d pntIntersect2 = new GSOPoint3d();
            GSOPoint3d pntProIntersect1 = new GSOPoint3d();
            GSOPoint3d pntProIntersect2 = new GSOPoint3d();

            verticalDistance = globeControl1.Globe.Analysis3D.ComputeVerticalDistance(line1, line2,
                out pntIntersect1, out pntIntersect2, out pntProIntersect1, out pntProIntersect2, false);
            ClassAddMakerToGlobel.LabelDistance(pntProIntersect1, pntProIntersect2, verticalDistance, true, "垂直", globeControl1, globeControl2);

            horizonDistance = globeControl1.Globe.Analysis3D.ComputeHorizonDistance(line1, line2,
                out pntIntersect1, out pntIntersect2, out pntProIntersect1, out pntProIntersect2, false);
            ClassAddMakerToGlobel.LabelDistance(pntProIntersect1, pntProIntersect2, horizonDistance, true, "水平", globeControl1, globeControl2);

        }

    }
}