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

using Nice3point.Revit.Toolkit.External;

namespace ShrlAlgoToolkit.RevitAddins.RvFamily;
/// <summary>
/// 炸开族中的dwg或嵌套族图元
/// </summary>
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
public class ExplodeDwgCmd : ExternalCommand
{
    public override void Execute()
    {
        try
        {
            var refer = UiDocument.Selection.PickObject(ObjectType.Element);
            var element = Document.GetElement(refer);
            var geoElem = element.get_Geometry(new Options() { ComputeReferences = true, DetailLevel = ViewDetailLevel.Fine });
            if (Document.IsFamilyDocument)
            {
                var f = Document.OwnerFamily;
                Document.Invoke(
                    ts =>
                    {
                        foreach (var geoObj in geoElem)
                        {
                            if (geoObj is GeometryInstance instance)
                            {
                                foreach (var obj in instance.GetInstanceGeometry())
                                {
                                    if (obj is Solid solid)
                                    {
                                        var directShape = DirectShape.CreateElement(Document, f.FamilyCategory.Id);
                                        directShape.SetShape(new GeometryObject[] { solid });
                                    }
                                }
                            }
                        }
                        Document.Delete(element.Id);
                    });
            }
        }
        catch (Autodesk.Revit.Exceptions.OperationCanceledException)
        {

        }
        catch (Exception ex)
        {
            TaskDialog.Show("Error", ex.Message);
        }
    }
}