using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Plumbing;
using Nice3point.Revit.Toolkit.External;


namespace ShrlAlgoToolkit.RevitAddins.RvMEP;

[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
public class ForceConnectCmd : ExternalCommand
{
	public override void Execute()
	{
		using Transaction trans = new(Document, "强制连接系统");
		try
		{
			while (true)
			{
				var pipeList = UiDocument.Selection.PickElementsByRectangle(new GenericFilter<Pipe>()).Cast<Pipe>().ToList();
				try
				{
					trans.Start();
					if (pipeList.Count == 2)
					{
						var pipe1 = pipeList[0];
						var pipe2 = pipeList[1];
						var l1 = (pipe1.Location as LocationCurve)?.Curve as Line;
						var l2 = (pipe2.Location as LocationCurve)?.Curve as Line;
						var l3 = l2.Clone();
						var p1 = l1.Origin;
						var projectPoint = l2.Project(p1).XYZPoint;

						var collection1 = pipe1.ConnectorManager.UnusedConnectors;
						var collection2 = pipe2.ConnectorManager.UnusedConnectors;
						var di = double.MaxValue;
						var conns = new List<Connector>();

						foreach (Connector connector in collection1)
						{
							foreach (Connector connector1 in collection2)
							{
								var temp = connector.Origin.DistanceTo(connector1.Origin);
								if (temp < di)
								{
									conns.Clear();
									di = temp;
									conns.Add(connector);
									conns.Add(connector1);
								}
							}
						}

						Document.Create.NewElbowFitting(conns[0], conns[1]);
						//conns[0].ConnectTo(conns[1]);
						//var comparisonResult= l1.Intersect(l3, out var result);
						// if (comparisonResult == SetComparisonResult.Overlap)
						// {
						//     var p = result.get_Item(0).XYZPoint;
						// }
					}

					if (pipeList.Count == 3)
					{
						var pipe1 = pipeList[0];
						var pipe2 = pipeList[1];
						var pipe3 = pipeList[2];
						var l1 = (pipe1.Location as LocationCurve).Curve as Line;
						var l2 = (pipe2.Location as LocationCurve).Curve as Line;
						var l3 = (pipe3.Location as LocationCurve).Curve as Line;
						if (l1.Direction.IsAlmostEqualTo(l2.Direction))
						{
							var collection1 = pipe1.ConnectorManager.UnusedConnectors;
							var collection2 = pipe2.ConnectorManager.UnusedConnectors;

							foreach (Connector connector in collection1)
							{
								foreach (Connector connector1 in collection2)
								{
									//var temp = connector.Origin.DistanceTo(connector1.Origin);
									//if (temp < di)
									//{
									//    conns.Clear();
									//    di = temp;
									//    conns.Add(connector);
									//    conns.Add(connector1);
									//}
								}
							}
							//doc.Create.NewTeeFitting();
						}
					}
					trans.Commit();
				}
				catch (Exception)
				{
					trans.Commit();
					return;
				}
			}
		}
		catch (Autodesk.Revit.Exceptions.OperationCanceledException)
		{
			if (trans.GetStatus() == TransactionStatus.Started)
			{
				trans.Commit();
			}
		}
		catch (Exception ex)
		{
			ErrorMessage = ex.Message;
			if (trans.GetStatus() == TransactionStatus.Started)
			{
				trans.Commit();
			}

			return;
		}
	}
}