using System.Collections.Generic;

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

using GeologyToolkit;

using Nice3point.Revit.Toolkit.External;

namespace GeologyToolkit
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
    internal class RemovePointCmd : ExternalCommand
    {
        public override void Execute()
        {
            var isContinue = true;
            try
            {
                while (isContinue)
                {
                    var refer = UiDocument.Selection.PickObject(ObjectType.Element, new SelectTopographySurface(), "请选择要调整地层面");
                    var surface = Document.GetElement(refer) as TopographySurface;
                    var referPoint = SelectInstance(UiDocument);
                    RemoveSurfacePoint(Document, surface, referPoint);
                }
            }
            catch (Autodesk.Revit.Exceptions.OperationCanceledException)
            {
            }

        }

        public ReferencePoint SelectInstance(UIDocument uidoc)
        {
            var Document = uidoc.Document;
            var refer1 = uidoc.Selection.PickObject(ObjectType.Element, new SelectLayer(), "请选择要移除的土层");
            var familyinstance = Document.GetElement(refer1) as FamilyInstance;
            var placePointIds = AdaptiveComponentInstanceUtils.GetInstancePlacementPointElementRefIds(familyinstance);
            return Document.GetElement(placePointIds[1]) as ReferencePoint;
        }

        public ReferencePoint SelectReferencePoint(UIDocument uidoc, TopographySurface surface)
        {
            var Document = uidoc.Document;

            var refer1 = uidoc.Selection.PickObject(ObjectType.Element, new SelectReferPoint(), "请选择要移除的土层点");
            return Document.GetElement(refer1) as ReferencePoint;
        }

        private void RemoveSurfacePoint(Document doc, TopographySurface surface, ReferencePoint referpoint)
        {
            var scope = new TopographyEditScope(doc, "移除地层点");
            if (scope.IsPermitted)
            {
                scope.Start(surface.Id);
            }
            else
            {
                return;
            }

            GeologyFailureProcessor processor = null;
            using (var ts = new Transaction(doc, "删除地层点"))
            {
                ts.Start();
                if (scope.IsActive)
                {
                    var points = new List<XYZ>
                    {
                        referpoint.Position
                    };
                    surface.DeletePoints(points);
                    processor = new GeologyFailureProcessor();
                }
                ts.Commit();
            }
            scope.Commit(processor);
        }
    }
}