using Autodesk.Revit.DB;
using Autodesk.Revit.DB.ExtensibleStorage;
using KDCS.Utils;
using KMBIM.Revit.Tools.Cmd.Hanger;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KMBIM.Revit.Tools.Utils
{
    public class HangerFamilySymbol
    {
        public static HashSet<Autodesk.Revit.DB.ElementId> a(Document A_0)
        {
            if (A_0 == null || A_0.ProjectInformation == null)
            {
                return null;
            }
            HashSet<Autodesk.Revit.DB.ElementId> hashSet = new HashSet<Autodesk.Revit.DB.ElementId>();
            List<string> contents = Util.GetLibrary("Libraries\\Hanger", false);
            Autodesk.Revit.DB.FilteredElementIterator elementIterator = new Autodesk.Revit.DB.FilteredElementCollector(A_0).OfClass(typeof(Autodesk.Revit.DB.FamilySymbol)).GetElementIterator();
            while (elementIterator.MoveNext())
            {
                Autodesk.Revit.DB.FamilySymbol familySymbol = elementIterator.Current as Autodesk.Revit.DB.FamilySymbol;
                if (familySymbol != null && familySymbol.Family != null && contents.Contains(familySymbol.Family.Name))
                {
                    hashSet.Add(familySymbol.Id);
                }
            }
            return hashSet;
        }

        public static bool SetSymbolIds(Document A_0, KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType A_1, Autodesk.Revit.DB.ElementId A_2, bool A_3)
	{
		if (A_0 == null || A_0.ProjectInformation == null || A_1 == KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType.UnDefined)
		{
			return false;
		}
		Autodesk.Revit.DB.Transaction transaction = null;
		if (!A_3)
		{
			transaction = new Autodesk.Revit.DB.Transaction(A_0, "Set Symbol Ids");
			transaction.Start();
		}
		IList<Autodesk.Revit.DB.ElementId> list = null;
		Field field = HangerSchema.SetHangerSymbolIdsSchema().GetField("SymbolIds");
		Entity entity = A_0.ProjectInformation.GetEntity(HangerSchema.SetHangerSymbolIdsSchema());
		if (entity != null && entity.IsValid())
		{
			list = entity.Get<IList<Autodesk.Revit.DB.ElementId>>(field);
			if (list.Count < 6)
			{
				list.Clear();
				for (int i = 0; i < 6; i++)
				{
					list.Add(Autodesk.Revit.DB.ElementId.InvalidElementId);
				}
			}
		}
		else
		{
			entity = new Entity(HangerSchema.SetHangerSymbolIdsSchema());
			list = new List<Autodesk.Revit.DB.ElementId>();
			for (int j = 0; j < 6; j++)
			{
				list.Add(Autodesk.Revit.DB.ElementId.InvalidElementId);
			}
		}
		list[(int)(A_1 - 1)] = A_2;
		entity.Set(field, list);
		A_0.ProjectInformation.SetEntity(entity);
        if (transaction != null) transaction.Commit();
		return true;
	}

        public static Autodesk.Revit.DB.ElementId GetSymbolIds(Document A_0, KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType A_1)
        {
            if (A_0 == null || A_0.ProjectInformation == null || A_1 == KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType.UnDefined)
            {
                return Autodesk.Revit.DB.ElementId.InvalidElementId;
            }
            Entity entity = A_0.ProjectInformation.GetEntity(HangerSchema.SetHangerSymbolIdsSchema());
            if (entity == null || !entity.IsValid())
            {
                return Autodesk.Revit.DB.ElementId.InvalidElementId;
            }
            Field field = HangerSchema.SetHangerSymbolIdsSchema().GetField("SymbolIds");
            IList<Autodesk.Revit.DB.ElementId> list = entity.Get<IList<Autodesk.Revit.DB.ElementId>>(field);
            if (list == null || list.Count < 6)
            {
                return Autodesk.Revit.DB.ElementId.InvalidElementId;
            }
            return list[(int)(A_1 - 1)];
        }

        internal static BuiltInCategory GetBuiltInCategory(KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType mepCrvType)
	    {
            BuiltInCategory biCat = BuiltInCategory.OST_DuctAccessory;

		    switch(mepCrvType){
		        case KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType.Pipe:
                    biCat = BuiltInCategory.OST_PipeAccessory; break;
		        case KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType.Conduit:
                    biCat = BuiltInCategory.OST_ConduitFitting; break;
		        case KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType.CableTray:
                    biCat = BuiltInCategory.OST_CableTrayFitting; break;
                default:
                    biCat = BuiltInCategory.OST_DuctAccessory; break;
            }

            return biCat;
	    }

        internal static Autodesk.Revit.DB.FamilySymbol GetFamilysymbol(Document document, KMBIM.Revit.Tools.Cmd.Hanger.MEPCurveType mepCurveType, string familyName)
	    {
		    Autodesk.Revit.DB.FilteredElementIterator elementIterator = new Autodesk.Revit.DB.FilteredElementCollector(document).OfClass(typeof(Autodesk.Revit.DB.FamilySymbol)).GetElementIterator();
		    while (elementIterator.MoveNext())
		    {
			    Autodesk.Revit.DB.FamilySymbol familySymbol = elementIterator.Current as Autodesk.Revit.DB.FamilySymbol;
			    if (familySymbol != null && familySymbol.Family != null && familySymbol.Family.Name == familyName)
			    {
				    return familySymbol;
			    }
		    }

			var versionNumber = document.Application.VersionNumber.ToString();
			string text = Path.Combine(KMBIM.Revit.Tools.Cmd.Hanger.HangerSettings.GetHangerFolder()+"\\" + versionNumber, familyName + ".rfa");
		    if (!File.Exists(text))
		    {
			    return null;
		    }
		    Autodesk.Revit.DB.Family family = null;
		    if (document.LoadFamily(text, out family))
		    {
			    Autodesk.Revit.DB.FamilySymbol result = null;
			    var enumerator = Util.GetFamilySymbols(document, family).GetEnumerator();
			    if (enumerator.MoveNext())
			    {
                    result = enumerator.Current;
                    Util.Activate(result);
				    return result;
			    }
			    return result;
		    }
		    return null;
	    }
    }
}