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 DeletePts
    {
        public static string gcdly;//高程点所在图层
        public static List<string> delely = new List<string>();//需要删除的图层
        public static int blc;//比例尺
        public double radius;//半径

        public void delept()
        {
            List<ObjectId> deleids = new List<ObjectId>();
            if (blc == 500)
            {
                radius = 1.5;
            }
            else if (blc == 1000)
            {
                radius = 2.5;
            }
            else if (blc == 2000)
            {
                radius = 4;
            }
            else if (blc == 5000)
            {
                radius = 10.5;
            }
            //创建新图层
            LayerControl layerscontrol = new LayerControl();
            string layname = "已删除";
            if (!layerscontrol.haslayername(layname))
            {
                colorgb col = new colorgb(255, 0, 255);
                layerscontrol.creatlayer(layname, col);
                layerscontrol.movelayertofront(layname);
            }
            else
                layerscontrol.movelayertofront(layname);


            for (int i = 0; i < delely.Count; i++)
            {
                List<ObjectId> temp = Idget(delely[i]);
                for (int j = 0; j < temp.Count; j++)
                {
                    deleids.Add(temp[j]);
                }
            }
            Database db = HostApplicationServices.WorkingDatabase;
            DocumentLock doclock = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument();
            Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;

            TypedValue[] typedvalue = new TypedValue[]
            {
                new TypedValue((int)DxfCode.LayerName, gcdly),
                new TypedValue((int)DxfCode.Start, "Insert")
            };
            SelectionFilter selectionfilter = new SelectionFilter(typedvalue);

            for (int i = 0; i < deleids.Count; i++)
            {
                using (Transaction trans = db.TransactionManager.StartTransaction())
                {
                    Entity ent = (Entity)trans.GetObject(deleids[i], OpenMode.ForWrite);
                    if (ent is Polyline)
                    {
                        Polyline pll = (Polyline)trans.GetObject(deleids[i], OpenMode.ForWrite);
                        Point3dCollection ptcoll = new Point3dCollection();
                        for (int j = 0; j < pll.NumberOfVertices; j++)
                        {
                            ptcoll.Add(pll.GetPoint3dAt(j));
                        }
                        PromptSelectionResult psr = editor.SelectCrossingPolygon(ptcoll, selectionfilter);

                        if (psr.Status == PromptStatus.OK)
                        {
                            SelectionSet selectionset = psr.Value;
                            ObjectId[] ids = selectionset.GetObjectIds();
                            for (int j = 0; j < ids.Count(); j++)
                            {
                                BlockReference br = (BlockReference)trans.GetObject(ids[j], OpenMode.ForWrite);
                                br.Layer = "已删除";
                                Point3d p1 = new Point3d(br.Position.X - radius, br.Position.Y - radius, 0);
                                Point3d p2 = new Point3d(br.Position.X + radius, br.Position.Y + radius, 0);

                                TypedValue[] tpvl = new TypedValue[]
                                {
                                    new TypedValue((int)DxfCode.Start, "Text"),
                                    new TypedValue((int)DxfCode.LayerName, gcdly)
                                };

                                SelectionFilter filter = new SelectionFilter(tpvl);
                                PromptSelectionResult prosr = editor.SelectCrossingWindow(p1, p2, filter);

                                if (prosr.Status == PromptStatus.OK)
                                {
                                    SelectionSet seleset = prosr.Value;
                                    ObjectId[] selid = seleset.GetObjectIds();
                                    for (int ii = 0; ii < selid.Count(); ii++)
                                    {
                                        DBText text = trans.GetObject(selid[ii], OpenMode.ForWrite) as DBText;
                                        text.Layer = "已删除";
                                    }
                                }
                            }
                        }
                        trans.Commit();
                    }
                }
            }
            editor.WriteMessage("删除完成\n");
            doclock.Dispose();
        }

        private static List<ObjectId> Idget(string ly)
        {
            Editor editor = GrxCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
            TypedValue[] typedvalue = new TypedValue[1];
            typedvalue.SetValue(new TypedValue((int)DxfCode.LayerName, ly), 0);

            SelectionFilter selectionfilter = new SelectionFilter(typedvalue);
            PromptSelectionResult psr = editor.SelectAll(selectionfilter);
            SelectionSet selectionset = psr.Value;
            ObjectId[] obj = new ObjectId[selectionset.Count];
            List<ObjectId> ids = new List<ObjectId>();

            if (psr.Status == PromptStatus.OK)
            {
                obj = selectionset.GetObjectIds();
                for (int i = 0; i < obj.Length; i++)
                {
                    ids.Add(obj[i]);
                }
            }
            return ids;
        }
    }
}