using System.Windows;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Mechanical;
using Autodesk.Revit.DB.Plumbing;
using Autodesk.Revit.UI.Selection;
using Nice3point.Revit.Toolkit.External;

using ShrlAlgoToolkit.RevitAddins.RvMEP;
using ShrlAlgoToolkit;
using ShrlAlgoToolkit.RevitAddins;

namespace ShrlAlgoToolkit.RevitAddins.Mep;

/// <summary>
/// Revit执行命令
/// </summary>
[Transaction(TransactionMode.Manual)]
public class BreakMEPCurveCmd : ExternalCommand
{
    public override void Execute()
    {
        try
        {
            while (true)
            {
                var filter1 = new FuncFilter(
                    e => e is MEPCurve and not InsulationLiningBase and not FlexDuct and not FlexPipe);
                var refer1 = UiDocument.Selection.PickObject(
                    ObjectType.PointOnElement, filter1
                    , "拾取打断管线的位置");
                var pointPicked = refer1.GlobalPoint;

                var mepCurve = UiDocument.Document.GetElement(refer1) as MEPCurve;
                var loc = mepCurve.GetCurve() as Line;
                var d = loc.Direction;
                var halfGap = 20 / 304.8;
                var point1 = pointPicked - d * halfGap;
                var point2 = pointPicked + d * halfGap;
               
                var breakPoint1 = mepCurve.GetCurve().Project(point1).XYZPoint;
                var breakPoint2 = mepCurve.GetCurve().Project(point2).XYZPoint;
                if (!loc.IsInsideEx(breakPoint1, halfGap) || !loc.IsInsideEx(breakPoint2, halfGap))
                {
                    MessageBox.Show("打断点距离管线端点太近");
                    continue;
                }
                //var direction = breakPoint2 - breakPoint1;
                //var flag = direction.Normalize().IsAlmostEqualTo(loc.Direction);

                Document.Invoke(_ =>
                {
                    var second = mepCurve.BreakByPoint(breakPoint1);
                    var third = mepCurve.BreakByPoint(breakPoint2);
                    Document.Delete(third);

                    //if (flag)
                    //{
                    //    var second = mepCurve.BreakByPoint(breakPoint1);
                    //    var third = mepCurve.BreakByPoint(breakPoint2);
                    //    Document.Delete(third);
                    //}
                    //else
                    //{
                    //    var second = mepCurve.BreakByPoint(breakPoint2);
                    //    //var mepCurve2 = Document.GetElement(second) as ElementToMove;
                    //    var third = mepCurve.BreakByPoint(breakPoint1);
                    //    Document.Delete(third);

                    //}

                }, "打断管线");
            }
        }
        catch (Autodesk.Revit.Exceptions.OperationCanceledException)
        {
        }
    }
}