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

using Nice3point.Revit.Toolkit.External;

using System;


namespace Szmedi.RvKits.DrawingTools
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
    public class DimensionBy2LineCmd : ExternalCommand
    {
        public override void Execute()
        {
            #region RepeatExecute

            using Transaction trans = new(Document, "标注");
            try
            {
                while (true)
                {
                    ElementReferenceType referenceType1 = ElementReferenceType.REFERENCE_TYPE_LINEAR;
                    Reference refer = UiDocument.Selection.PickObject(
                        ObjectType.Edge,
                        new ReferenceSelectionFilter(referenceType1),
                        "请选择第一条边"
                    );
                    Reference refer1 = UiDocument.Selection.PickObject(
                        ObjectType.Edge,
                        new ReferenceSelectionFilter(referenceType1),
                        "请选择第二条边"
                    );
                    Element e = UiDocument.Document.GetElement(refer);
                    Element e1 = UiDocument.Document.GetElement(refer1);

                    var f = e.GetGeometryObjectFromReference(refer) as Edge;
                    var f1 = e1.GetGeometryObjectFromReference(refer1) as Edge;
                    var c1 = f.AsCurve();
                    var c2 = f1.AsCurve();
                    var p1 = c1.GetEndPoint(0);
                    c2.MakeUnbound();
                    var p2 = c2.Project(p1).XYZPoint;
                    Line l = Line.CreateBound(p1, p2);
                    ReferenceArray array = new();

                    array.Append(refer);
                    array.Append(refer1);
                    try
                    {
                        trans.Start();
                        Document.Create.NewDimension(Document.ActiveView, l, array);
                        trans.Commit();
                    }
                    catch (Autodesk.Revit.Exceptions.InvalidOperationException)
                    {
                        var plane = Plane.CreateByThreePoints(
                            f.AsCurve().GetEndPoint(0),
                            f.AsCurve().GetEndPoint(1),
                            f1.AsCurve().GetEndPoint(0)
                        );
                        var originSketch = Document.ActiveView.SketchPlane;
                        Document.ActiveView.SketchPlane = SketchPlane.Create(Document, plane);
                        Document.Create.NewDimension(Document.ActiveView, l, array);
                        Document.ActiveView.SketchPlane = originSketch;
                        trans.Commit();
                    }
                }
            }
            catch (Autodesk.Revit.Exceptions.OperationCanceledException)
            {
                if (trans.GetStatus() == TransactionStatus.Started)
                {
                    trans.Commit();
                }
            }
            catch (Exception)
            {
                //message = ex.InnerException.ToString();
                if (trans.GetStatus() == TransactionStatus.Started)
                {
                    trans.Commit();
                }
            }

            #endregion RepeatExecute
        }
    }
}