using System.Collections.Generic;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using KDCS.Utils;
using KMBIM.Revit.Tools.Properties;
using KMBIM.Revit.Tools.Cmd.Hanger;
using System.Windows.Forms;
using System;
using KMBIM.Revit.Tools.Utils;
using Autodesk.Revit.UI.Selection;


namespace KMBIM.Revit.Tools.Cmd.Hanger
{

    /// <summary>
    /// Çà°Å ¼öµ¿ ¹èÄ¡
    /// </summary>
    [Regeneration(RegenerationOption.Manual)]
    [Transaction(TransactionMode.Manual)]
    public class PlaceHangerCommandManual : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            if (!WorkMain.GetInstance().IsValid) return Autodesk.Revit.UI.Result.Succeeded;
            // Verify active document
            if (null == commandData.Application.ActiveUIDocument.Document)
            {
                message = KMBIM.Revit.Tools.Properties.Resources.ActiveViewIsNull;   // "ÇöÀç È°¼ºÈ­µÈ ºä°¡ ¾ø½À´Ï´Ù.";       //"Active view is null.";
                return Autodesk.Revit.UI.Result.Failed;
            }

            var uiapp = commandData.Application;
            var uidoc = uiapp.ActiveUIDocument;
            var app = uiapp.Application;
            var doc = uidoc.Document;
            var createDoc = uidoc.Document.Create;

            //var lst=FamilyInstanceCreator.FindFamilyCandidates(doc, "libraries\\Hanger", "Hanger_Rec_Channel_C");
           


            HangerSchema.SetAddInId(app.ActiveAddInId);
            HangerSchema.Init();


            List<MEPCurve> list = new List<MEPCurve>();
            

            FormHangerPlacement frmHanger = new FormHangerPlacement(doc);
            if (frmHanger.ShowDialog() != DialogResult.OK) return Autodesk.Revit.UI.Result.Succeeded;
            SinglePlacement(ref commandData, ref message,  ref frmHanger);

            return Autodesk.Revit.UI.Result.Succeeded;
        }

        Result SinglePlacement(ref ExternalCommandData commandData, ref string message,  ref FormHangerPlacement frmHanger)
        {


            var uiapp = commandData.Application;
            var uidoc = uiapp.ActiveUIDocument;
            var document = uidoc.Document;
            var createDoc = uidoc.Document.Create;


            // ¼³Ä¡ ¿É¼Ç
            InstallOption installOption = new InstallOption("Çà°Å ¹èÄ¡-´Üµ¶", DisplayUnit.METRIC);
            installOption.AnchorInstallBase = frmHanger.AnchorInstallBase;
            installOption.SetAnchorLevel(frmHanger.Level);




            string hanger_family = frmHanger.PathFamily;
            installOption.addOption(new UnitInstallOption(hanger_family, -1, frmHanger.HangerSpacing, frmHanger.DistanceFromJoint));  // 3.28084 ft = 1m

            try
            {

                HangerFamily hangerFamily = new HangerFamily(installOption.GetAnchorLevel());
                var newView3d = new View3DHanger(document);
                hangerFamily.SetView3dHanger(newView3d);
                HangerSettings settings = HangerSettings.GetSettings();

                settings.InstallOptions = new List<InstallOption>();
                settings.InstallOptions.Add(installOption);

                Autodesk.Revit.UI.Selection.Selection selection = uidoc.Selection;
                while (true)
                {
                    Reference reference = null;
                    try
                    {
                        reference = selection.PickObject(Autodesk.Revit.UI.Selection.ObjectType.PointOnElement, new MEPCurveSelectionFilter(), "Çà°Å À§Ä¡ ÁöÁ¤.");
                        if (reference == null)
                        {
                            break;
                        }
                    }
                    catch (Exception ex)
                    {
                        message = ex.Message;
                        break;
                    }
                    Autodesk.Revit.DB.MEPCurve mep_curve = document.GetElement(reference.ElementId) as Autodesk.Revit.DB.MEPCurve;

                    // ¼±ÅÃÇÑ Ä¿ºê°¡ Çà°Å¸¦ ¹èÄ¡ÇÒ ¼ö ÀÖ´Â Ä¿ºêÀΰ¡?
                    if (!PlaceableCurve(mep_curve))
                    {
                        return Result.Succeeded;
                    }

                    Autodesk.Revit.DB.Transaction transaction = new Autodesk.Revit.DB.Transaction(document, "Place Hanger");
                    transaction.Start();
                    if (!hangerFamily.getSize((Autodesk.Revit.DB.Element)mep_curve, settings))
                    {
                        return Result.Succeeded;
                    }

                    var fs = HangerFamilySymbol.GetFamilysymbol(document, hangerFamily.GetKMBIMMEPCurveType(), hanger_family);
                    hangerFamily.SetFamilySymbol(fs);
                    if (hangerFamily.GetFamilySymbol() == null)
                    {
                        transaction.RollBack();
                        return Result.Failed;
                    }
                    
                    // Çà°Å À§Ä¡ ¹× ¾ÞÄ¿ Elevation
                    if (!hangerFamily.GetElevation(reference.GlobalPoint, installOption.AnchorInstallBase))
                    {
                        transaction.RollBack();
                        return Result.Failed;
                    }
                    if (!HangerSchema.CreateFamilyInstance(document, hangerFamily, installOption.AnchorInstallBase, ref message))
                    {
                        transaction.RollBack();
                        return Result.Failed;
                    }
                    document.Regenerate();
                    transaction.Commit();
                }
                return Result.Succeeded;
            }
            catch (Exception ex)
            {
                message = ex.Message;
                return Result.Failed;
            }


            return Autodesk.Revit.UI.Result.Succeeded;
        }

        /// <summary>
        /// ÁÖ¾îÁø ¿ä¼Ò°¡ ¹èÄ¡ °¡´ÉÇÑ °î¼±Àΰ¡?
        /// </summary>
        /// <param name="element"></param>
        /// <returns></returns>
        private bool PlaceableCurve(Autodesk.Revit.DB.Element element)
        {
            if (element == null)
            {
                return false;
            }
            if (!(element is MEPCurve))
            {
                return false;
            }
            if (element is Autodesk.Revit.DB.Plumbing.FlexPipe)
            {
                return false;
            }
            if (element is Autodesk.Revit.DB.Mechanical.FlexDuct)
            {
                return false;
            }
            return true;
        }


    }

    /// <summary>
    /// Çà°Å ÀÚµ¿ ¹èÄ¡
    /// </summary>
    [Regeneration(RegenerationOption.Manual)]
    [Transaction(TransactionMode.Manual)]
    public class PlaceHangerCommandMulti : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            if (!WorkMain.GetInstance().IsValid) return Autodesk.Revit.UI.Result.Succeeded;
            // Verify active document
            if (null == commandData.Application.ActiveUIDocument.Document)
            {
                message = KMBIM.Revit.Tools.Properties.Resources.ActiveViewIsNull;   // "ÇöÀç È°¼ºÈ­µÈ ºä°¡ ¾ø½À´Ï´Ù.";       //"Active view is null.";
                return Autodesk.Revit.UI.Result.Failed;
            }

            var uiapp = commandData.Application;
            var uidoc = uiapp.ActiveUIDocument;
            var app = uiapp.Application;
            var doc = uidoc.Document;
            var createDoc = uidoc.Document.Create;


            HangerSchema.SetAddInId(app.ActiveAddInId);
            HangerSchema.Init();

            List<MEPCurve> list = new List<MEPCurve>();

            var lstElement = Util.GetSelectedElements(uidoc);
            if (lstElement.Count == 0)
            {
                TaskDialog.Show(Properties.Resources.Warning, "ÀÌ ¸í·ÉÀ» ½ÇÇàÇϱâ Àü¿¡ ¹èÄ¡ÇÒ ¿ä¼Ò(´öÆ®,ÆÄÀÌÇÁ,ÄÉÀ̺íÆ®·¹ÀÌ)¸¦ ¼±ÅÃÇØ¾ß ÇÕ´Ï´Ù.");
                return Autodesk.Revit.UI.Result.Succeeded;
            }
            else
            {
                foreach (var e in lstElement)
                {
                    MEPCurve mc = e as MEPCurve;
                    if (mc != null) list.Add(mc);
                }

            }

            if (list.Count > 0)
            {
                FormHangerPlacement frmHanger = new FormHangerPlacement(doc);
                if (frmHanger.ShowDialog() != DialogResult.OK) return Autodesk.Revit.UI.Result.Succeeded;               
                MultiPlacement(ref commandData, ref message, ref list, ref frmHanger);
            }

            return Autodesk.Revit.UI.Result.Succeeded;
        }

        Result MultiPlacement(ref ExternalCommandData commandData, ref string message, ref List<MEPCurve> lst, ref FormHangerPlacement frmHanger)
        {
            var uiapp = commandData.Application;
            var uidoc = uiapp.ActiveUIDocument;
            var doc = uidoc.Document;
            var createDoc = uidoc.Document.Create;



           
            Autodesk.Revit.UI.Selection.Selection selection = uidoc.Selection;

            // ¹èÄ¡ ½ÃÀÛÁ¡ ÁöÁ¤
            Reference refStart = null;
            try
            {
                refStart = selection.PickObject(Autodesk.Revit.UI.Selection.ObjectType.PointOnElement, new MEPCurveSelectionFilter(), "Çà°Å ¹èÄ¡ ½ÃÀÛÁ¡ ÁöÁ¤.");
                if (refStart == null)
                {
                    return Autodesk.Revit.UI.Result.Failed;
                }
            }
            catch (Exception ex)
            {
                message = ex.Message;
                return Autodesk.Revit.UI.Result.Failed;
            }

            if (lst.Count > 0)
            {

                // ¼³Ä¡ ¿É¼Ç
                InstallOption installOption = new InstallOption("Çà°Å ¹èÄ¡-´ÙÁß", DisplayUnit.METRIC);
                installOption.AnchorInstallBase = frmHanger.AnchorInstallBase;
                installOption.SetAnchorLevel(frmHanger.Level);


                string strFamily = frmHanger.PathFamily;
                installOption.addOption(new UnitInstallOption(strFamily, -1, frmHanger.HangerSpacing, frmHanger.DistanceFromJoint));  // 3.28084 ft = 1m

                Autodesk.Revit.DB.Transaction transaction = new Autodesk.Revit.DB.Transaction(doc, "Çà°Å ¹èÄ¡-´ÙÁß");
                transaction.Start();
                string mainInstruction = "";
                var automaticHangerPlacement = new AutomaticHangerPlacement(doc, lst);
                if (!automaticHangerPlacement.Place(ref mainInstruction, installOption, refStart.GlobalPoint))
                {
                    if (!string.IsNullOrEmpty(mainInstruction))
                    {
                        TaskDialog.Show(Properties.Resources.Error, mainInstruction);
                    }
                    transaction.RollBack();
                }
                else
                {
                    transaction.Commit();
                }

            }
            return Autodesk.Revit.UI.Result.Succeeded;
        }
    }


}