using System;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text.RegularExpressions;
using System.Windows;

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Architecture;
using Autodesk.Revit.UI;
using Autodesk.Revit.UI.Selection;

using Nice3point.Revit.Toolkit.External;

using OfficeOpenXml.FormulaParsing.Excel.Functions.Math;

using Szmedi.RvKits.Assists;

namespace Szmedi.RvKits.Modeling
{
    [Transaction(TransactionMode.Manual)]
    public class RoomNameAssignCmd : ExternalCommand
    {
        public override void Execute()
        {
            Document.Invoke(
                ts =>
                {
                    try
                    {
                        var reference = UiDocument.Selection.PickObject(ObjectType.PointOnElement, new GenericFilter<ImportInstance>(), "请选择CAD文字");
                        var instance = Document.GetElement(reference) as ImportInstance;

                        var layerName = instance.GetLayerName(reference);
                        List<KeyValuePair<string, XYZ>> layerTextPoints = instance.GetTextsByLayer(layerName);
                        var rooms = ActiveView.OfCollector().OfCategory(BuiltInCategory.OST_Rooms).ToElements();
                        var roomTags = ActiveView.OfCollector().OfCategory(BuiltInCategory.OST_RoomTags).Cast<RoomTag>();
                        foreach (Room room in rooms)
                        {
                            var level = room.Level;
                            var kv = layerTextPoints.FirstOrDefault(d => ContainsChinese(d.Key) && room.IsPointInRoom(d.Value.FlattenTo(level)));
                            if (kv.Key != null)
                            {
                                //var flattenPoint = kv.Value.FlattenTo(level);

                                var tag = roomTags.FirstOrDefault(t => t.TaggedLocalRoomId == room.Id);
                                if (tag == null)
                                {
                                    var uv = new UV(kv.Value.X, kv.Value.Y);

                                    Document.Create.NewRoomTag(new LinkElementId(room.Id), uv, ActiveView.Id);
                                }

                                //var arc = Arc.Create(flattenPoint, 10, 0, 5, XYZ.BasisX, XYZ.BasisY);
                                //Document.Create.NewModelCurve(arc, SketchPlane.Create(Document, level.Id));
                                room.Name = kv.Key;
                            }
                        }
                        //foreach (var kv in layerTextPoints)
                        //{
                        //    var floor = ActiveView as ViewPlan;
                        //    var flattenPoint = kv.Value.FlattenTo(floor.GenLevel);

                        //    var room = Document.GetRoomAtPoint(flattenPoint);

                        //    if (room == null)
                        //    {
                        //        continue;
                        //    }
                        //    var tag = roomTags.FirstOrDefault(t => t.TaggedLocalRoomId == room.Id);
                        //    if (tag == null)
                        //    {
                        //        var uv = new UV(kv.Value.X, kv.Value.Y);

                        //        Document.Create.NewRoomTag(new LinkElementId(room.Id), uv, ActiveView.Id);
                        //    }

                        //    var arc = Arc.Create(flattenPoint, 10, 0, 5, XYZ.BasisX, XYZ.BasisY);
                        //    Document.Create.NewModelCurve(arc, SketchPlane.Create(Document, floor.GenLevel.Id));
                        //    room.Name = kv.Key;
                        //}
                    }
                    catch(Autodesk.Revit.Exceptions.OperationCanceledException)
                    {
                        //用户取消操作
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                    }

                }, "房间命名");
        }
        static bool ContainsChinese(string input)
        {
            // 正则表达式匹配汉字
            Regex regex = new Regex(@"[\u4e00-\u9fa5]");
            return regex.IsMatch(input);
        }
    }
}