using GrxCAD.ApplicationServices;
using GrxCAD.DatabaseServices;
using GrxCAD.EditorInput;
using GrxCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HCTools
{
    class FeatureOverlap
    {

        //比例尺
        public static int blc;
        //重叠地物数量
        private int number = 0;
        public void check()
        {
            LayerControl lc = new LayerControl();
            if (lc.haslayername("地物重叠") == false)
            {
                lc.creatlayer("地物重叠", new colorgb(255, 0, 255));
                lc.movelayertofront("地物重叠");
            }
            else
            {
                lc.movelayertofront("地物重叠");
            }
            //选择块
            selecblock();
            search(blocklist,entitylist);
        }

        /// <summary>
        /// 定义一个块类，主要包括位置和名字
        /// </summary>
        public struct Block
        {
            public double x;
            public double y;
            public double z;
            public string name;

            public Block(double x, double y, double z, string name)
            {
                this.x = x;
                this.y = y;
                this.z = z;
                this.name = name;
            }
        }

        //块列表
        private List<Block> blocklist = new List<Block>();
        private List<Entity> entitylist = new List<Entity>();
        private void selecblock()
        {
            Document document = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
            Database database = HostApplicationServices.WorkingDatabase;
            DocumentLock documentlock = null;
            Transaction traction = null;
            try
            {
                traction = database.TransactionManager.StartTransaction();
                documentlock = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument();
                BlockTable blocktable = traction.GetObject(database.BlockTableId,
                                          OpenMode.ForRead) as BlockTable;
                Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
                TypedValue[] typedvalue = new TypedValue[1];
                typedvalue.SetValue(new TypedValue((int)DxfCode.Start, "Insert"), 0);
                SelectionFilter selectionfilter = new SelectionFilter(typedvalue);
                PromptSelectionResult psr = editor.GetSelection(selectionfilter); ///手动选择块参照
                //PromptSelectionResult psr = editor.SelectAll();
                if (psr.Status == PromptStatus.OK)
                {
                    SelectionSet selectionset = psr.Value;
                    ObjectId[] obj = new ObjectId[selectionset.Count];
                    obj = selectionset.GetObjectIds();
                    for (int i = 0; i < obj.Length; i++)
                    {
                        ObjectId objid = obj[i];
                        Entity entity = (Entity)traction.GetObject(objid, OpenMode.ForWrite);
                        if (entity is BlockReference)
                        {
                            BlockReference block = entity as BlockReference;
                            ObjectId id = block.BlockTableRecord;
                            BlockTableRecord blocktablerecord = traction.GetObject(id,
                                                            OpenMode.ForRead) as BlockTableRecord;
                            string blockname = blocktablerecord.Name.ToLower();
                            Block blc = new Block();
                            ///块参照的位置
                            blc.x = block.Position.X;
                            blc.y = block.Position.Y;
                            blc.z = block.Position.Z;
                            blc.name = blockname;
                            ///块参照的名称
                            switch (blockname)
                            {
                                case "gc028":
                                case "gc090":
                                case "gc110":
                                case "gc111":
                                case "gc119":
                                case "gc120":
                                case "gc121":
                                case "gc122":
                                case "gc124":
                                case "gc125":
                                case "gc126":
                                case "gc143":
                                case "gc144":
                                case "gc145":
                                case "gc160":
                                case "gc163":
                                case "gc164":
                                case "gc165":
                                case "gc200":
                                case "gc205":
                                case "gc206":
                                case "gc207":
                                case "gc208":
                                case "gc210":
                                case "gc211":
                                case "gc213":
                                case "gc246":
                                case "gc251":
                                case "gc253":
                                case "gc254":
                                case "gc319":
                                case "gc320":
                                case "gc322":
                                case "gc323":
                                case "gc325":
                                case "gc326":
                                    entitylist.Add(entity);
                                    blocklist.Add(blc);
                                    break;
                                case "gc170":
                                    if (block.Layer == "9000")
                                    {
                                        entitylist.Add(entity);
                                        blocklist.Add(blc);
                                    }
                                    break;

                                default:
                                    break;
                            }
                        }
                    }
                    editor.WriteMessage("\n" + "选中块数量:" + blocklist.Count.ToString());
                }
                traction.Commit();
            }
            catch (GrxCAD.Runtime.Exception)
            {
                traction.Abort();
                return;
            }
            finally
            {
                traction.Dispose();
                documentlock.Dispose();
            }
        }


        /// <summary>
        /// 寻找与上面已选实体相交的那部分
        /// </summary>
        /// <param name="list"></param>
        public void search(List<Block> list, List<Entity> list1)
        {
            Database database = HostApplicationServices.WorkingDatabase;
            Transaction traction = null;
            DocumentLock documentlock = null;
            try
            {
                Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
                for (int i = 0; i < list.Count; i++)
                {
                    double x = Math.Round((double)list[i].x, 3, MidpointRounding.AwayFromZero);
                    double y = Math.Round((double)list[i].y, 3, MidpointRounding.AwayFromZero);
                    Entity entity1 = list1[i];
                    string name = list[i].name;
                    rebound reb = get_boundary(name);
                    double height = reb.height;
                    double width = reb.width;
                    int type = reb.type;
                    ///按照比例尺决定大小
                    if (blc == 1000)
                    {
                        height = height / 2;
                        width = width / 2;
                    }
                    else if (blc == 500)
                    {
                        height = height / 4;
                        width = width / 4;
                    }
                    else if (blc == 2000)
                    {
                        height = height * 1;
                        width = width * 1;
                    }
                    ///是为了获得四个角，好框选整个图形
                    Point3d p1 = new Point3d(x - width, y, 0);
                    Point3d p2 = new Point3d(x + width, y, 0);
                    Point3d p3 = new Point3d(x + width, y + height, 0);
                    Point3d p4 = new Point3d(x - width, y + height, 0);
                    if (type == 2)
                    {
                        p1 = new Point3d(x - width, y - height, 0);
                        p2 = new Point3d(x + width, y - height, 0);
                        p3 = new Point3d(x + width, y + height, 0);
                        p4 = new Point3d(x - width, y + height, 0);
                    }
                    else if (type == 3)
                    {
                        p1 = new Point3d(x - width, y - height, 0);
                        p2 = new Point3d(x + width, y - height, 0);
                        p3 = new Point3d(x + width, y, 0);
                        p4 = new Point3d(x - width, y, 0);
                    }
                    using (Transaction acTrans = database.TransactionManager.StartTransaction())
                    {
                        ViewTableRecord currview = editor.GetCurrentView();
                        currview.CenterPoint = new Point2d(x, y);
                        currview.ViewDirection = new Vector3d(0, 0, 1);
                        currview.Width = 40;
                        currview.Height = 40;
                        editor.SetCurrentView(currview);
                        acTrans.Commit();
                    }

                    PromptSelectionResult pselectresult = editor.SelectCrossingWindow(p1, p3);///框选范围内相交的实体
                                                                                              ///如果有，按照类型对相交实体进行判断

                    traction = database.TransactionManager.StartTransaction();
                    documentlock = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument();
                    BlockTable blocktable = traction.GetObject(database.BlockTableId,
                                                 OpenMode.ForRead) as BlockTable;
                    BlockTableRecord blocktablerecord = traction.GetObject(blocktable[BlockTableRecord.ModelSpace],
                                                    OpenMode.ForWrite) as BlockTableRecord;
                    if (pselectresult.Status == PromptStatus.OK)
                    {
                        SelectionSet selectionset = pselectresult.Value;
                        ObjectId[] obj = new ObjectId[selectionset.Count];
                        obj = selectionset.GetObjectIds();
                        int count = 0;
                        for (int j = 0; j < obj.Length; j++)
                        {
                            ObjectId objid = obj[j];
                            Entity entity = (Entity)traction.GetObject(objid, OpenMode.ForWrite);
                            ///块参照
                            if (entity is BlockReference)
                            {
                                BlockReference cblock = entity as BlockReference;
                                ObjectId cid = cblock.BlockTableRecord;
                                BlockTableRecord crecord = traction.GetObject(cid,
                                                                OpenMode.ForRead) as BlockTableRecord;
                                string blockname = crecord.Name.ToLower();
                                if (blockname != "gc086")
                                {
                                    count++;
                                }
                            }
                            ///文字
                            else if (entity is DBText)
                            {
                                string layer = entity.Layer;
                                if (layer != "0")
                                {
                                    if (entity1 is BlockReference)
                                    {
                                        BlockReference cblock = entity1 as BlockReference;
                                        DBText txt = entity as DBText;
                                        if (cblock.Position.Z.ToString("N1") != txt.TextString)
                                            count++;
                                    }
                                }
                            }
                            ///线
                            else if (entity is Polyline || entity is Polyline2d)
                            {
                                string layer = entity.Layer;
                                if (layer == "4400" || layer == "6100" || layer == "4300" || layer == "2000")
                                {
                                    if (name != "gc200")
                                    {
                                        count++;
                                    }
                                }
                            }

                        }
                        if (count > 1)
                        {
                            double height1 = 2 * height;
                            Point3d orip = new Point3d(x, y, 0);
                            Point3d newp = new Point3d(x, y + height1, 0);
                            if (name == "gc120" || name == "gc119" || name == "gc126" || name == "gc123" || name == "gc325" || name == "gc205"
                                     || name == "gc206" || name == "gc207" || name == "gc125" || name == "gc165" || name == "gc326" || name == "gc170"
                                     || name == "gc160" || name == "gc246" || name == "gc208" || name == "gc121" || name == "gc163" || name == "gc164"
                                     || name == "gc090" || name == "gc124" || name == "gc379")
                            {
                                if (entity1.IsWriteEnabled == true)
                                {
                                    Move(entity1, orip, newp);
                                }
                            }
                            
                            double px1 = p1.X;
                            double py1 = p1.Y;
                            double px2 = p2.X;
                            double py2 = p2.Y;
                            double px3 = p3.X;
                            double py3 = p3.Y;
                            double px4 = p4.X;
                            double py4 = p4.Y;
                            p1 = new Point3d(px1, py1 + height1, 0);
                            p2 = new Point3d(px2, py2 + height1, 0);
                            p3 = new Point3d(px3, py3 + height1, 0);
                            p4 = new Point3d(px4, py4 + height1, 0);
                            Point3dCollection coll = new Point3dCollection();
                            coll.Add(p1);
                            coll.Add(p2);
                            coll.Add(p3);
                            coll.Add(p4);
                            Polyline2d line2d = new Polyline2d(Poly2dType.SimplePoly, coll, 0, true, 0, 0, null);
                            line2d.SetDatabaseDefaults();
                            line2d.Layer = "地物重叠";
                            blocktablerecord.AppendEntity(line2d);
                            traction.AddNewlyCreatedDBObject(line2d, true);
                            number++;
                        }
                    }
                    traction.Commit();
                }
                editor.WriteMessage("\n");
                editor.WriteMessage("检测到重叠地物:" + number);
                editor.WriteMessage("\n");
                number = 0;
            }
            catch (GrxCAD.Runtime.Exception)
            {
                traction.Abort();
                return;
            }
            finally
            {
                if (documentlock != null)
                {
                    documentlock.Dispose();
                }
                if (traction != null)
                {
                    traction.Dispose();
                }
            }
        }

        /// <summary>
        /// type=1表示图形为上半部分,type=2表示图形为上下两部分,type=3表示下半部分（中心点跟图形的关系）
        /// </summary>
        private struct rebound
        {
            public double height;
            public double width;
            public int type;

            public rebound(double height, double width, int type)
            {
                this.height = height;
                this.width = width;
                this.type = type;
            }
        }

        /// <summary>
        /// 对每个地物图标的大小进行绘制
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        private rebound get_boundary(string name)
        {
            double height = 0;
            double width = 0;
            int type = 0;

            switch (name)
            {
                case "gc028":
                    height = 5;
                    width = 4;
                    type = 2;
                    break;
                case "gc090":
                    height = 2.5;
                    width = 2.5;
                    type = 2;
                    break;
                //case "gc110":
                //    height = 4;
                //    width = 4;
                //    type = 2;
                //    break;

                //case "gc111":
                //    height = 4;
                //    width = 4;
                //    type = 2;
                //    break;

                case "gc119":
                    height = 2.6;
                    width = 2.6;
                    type = 1;
                    break;
                case "gc120":
                    height = 5;
                    width = 1;
                    type = 1;
                    break;
                case "gc121":
                    height = 1.1;
                    width = 1.1;
                    type = 2;
                    break;
                case "gc122":
                    height = 2.1;
                    width = 1.1;
                    type = 2;
                    break;
                case "gc123":
                    height = 4.2;
                    width = 2.1;
                    type = 2;
                    break;
                case "gc124":
                    height = 3;
                    width = 1.5;
                    type = 1;
                    break;
                case "gc125":
                    height = 3.8;
                    width = 1.2;
                    type = 2;
                    break;
                case "gc126":
                    height = 2.5;
                    width = 3;
                    type = 2;
                    break;
                case "gc143":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc144":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc145":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc160":
                    height = 4.7;
                    width = 4.7;
                    type = 2;
                    break;
                case "gc163":
                    height = 0.6;
                    width = 2.5;
                    type = 2;
                    break;
                case "gc164":
                    height = 0.7;
                    width = 0.7;
                    type = 2;
                    break;
                case "gc165":
                    height = 5;
                    width = 1;
                    type = 2;
                    break;
                case "gc170":
                    height = 1.1;
                    width = 1.1;
                    type = 2;
                    break;
                case "gc200":
                    height = 1.5;
                    width = 1.5;
                    type = 2;
                    break;
                case "gc205":
                    height = 5;
                    width = 2;
                    type = 1;
                    break;
                case "gc206":
                    height = 5;
                    width = 2;
                    type = 1;
                    break;
                case "gc207":
                    height = 4;
                    width = 1;
                    type = 2;
                    break;
                case "gc208":
                    height = 1.6;
                    width = 2.4;
                    type = 2;
                    break;
                case "gc210":
                    height = 6;
                    width = 2.2;
                    type = 1;
                    break;
                case "gc211":
                    height = 3;
                    width = 2.8;
                    type = 3;
                    break;
                case "gc212":
                    height = 5;
                    width = 2.6;
                    type = 1;
                    break;
                case "gc246":
                    height = 6;
                    width = 4;
                    type = 1;
                    break;
                case "gc251":
                    height = 1;
                    width = 3.5;
                    type = 2;
                    break;
                case "gc253":
                    height = 0.7;
                    width = 0.7;
                    type = 2;
                    break;
                case "gc254":
                    height = 3;
                    width = 2.5;
                    type = 2;
                    break;
                case "gc319":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc320":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc322":
                    height = 6;
                    width = 2;
                    type = 1;
                    break;
                case "gc323":
                    height = 4;
                    width = 1.1;
                    type = 1;
                    break;
                case "gc325":
                    height = 5;
                    width = 0.7;
                    type = 1;
                    break;
                case "gc326":
                    height = 1.6;
                    width = 1.6;
                    type = 2;
                    break;

                default:
                    height = 2.5;
                    width = 2;
                    type = 2;
                    break;
            }
            rebound rec = new rebound(height, width, type);
            return rec;
        }

        /// <summary>
        /// 指定基点与目标点移动实体
        /// </summary>
        /// <param name="ent">实体对象</param>
        /// <param name="BasePt">基点</param>
        /// <param name="TargetPt">目标点</param>
        public static void Move(Entity ent, Point3d basePt, Point3d targetPt)
        {
            Vector3d vec = targetPt - basePt;
            Matrix3d mt = Matrix3d.Displacement(vec);
            ent.TransformBy(mt);
        }
    }
}