using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using KMBIM.Revit.Tools.Cmd.PipeConnection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KMBIM.Revit.Tools.Cmd.Piping
{

    /// <summary>
    ///  대화상자에서의 요청을 실행한다.
    /// </summary>
    public class RequestHandlerPipeConnect : IExternalEventHandler
    {
        // A trivial delegate, but handy
        private delegate void DoorOperation(FamilyInstance e);

        // The value of the latest request made by the modeless form 
        private RequestForPipeConnect m_request = new RequestForPipeConnect();

        /// <summary>
        /// A public property to access the current request value
        /// </summary>
        public RequestForPipeConnect Request
        {
            get { return m_request; }
        }

        /// <summary>
        ///   A method to identify this External Event Handler
        /// </summary>
        public String GetName()
        {
            return "KMBIM External Event Handler";
        }


        /// <summary>
        ///   The top method of the event handler.
        /// </summary>
        /// <remarks>
        ///   This is called by Revit after the corresponding
        ///   external event was raised (by the modeless form)
        ///   and Revit reached the time at which it could call
        ///   the event's handler (i.e. this object)
        /// </remarks>
        public void Execute(UIApplication uiapp)
        {
            UIDocument uidoc = uiapp.ActiveUIDocument;
            try
            {
                ResolverForPipeConnect resolver = Request.Take();
                if (resolver != null)
                {
                    if (uidoc != null)
                    {
                        using (TransactionGroup trans = new TransactionGroup(uidoc.Document, "Pipe Connect"))
                        {                          
                            try
                            {
                                trans.Start();

                                resolver.Run();

                                trans.Commit();
                            }
                            catch (Exception ex)
                            {
                                trans.RollBack();
                                System.Windows.Forms.MessageBox.Show(ex.Message);
                            }
                                                                                                                  
                        }
                    }
                }
            }
            finally
            {
                App.thisApp.WakeFormPipeConnector();
            }

            return;
        }





    }//end-class
}