using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Sarand.Core.Base;
using Sarand.Core.Bus;
using Sarand.PatientMgr.Core.App;

namespace Sarand.PatientMgr.Core.Bus
{
	//=======================================================================
	public abstract class SpmFacility : SacsHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Pos,
			Id,
			DepartmentId,
			Type,
			Type_Desc,
			Name,
			SortCode,
			Desc,
			TemplateMapType,
			ScheduleFreezeType,
			FreezeTime,
			FreezeData,
			ApplicFrom,
			ApplicTo,

			// Common properties.
			Notes,
			Flag,
			Status,
			Status_Ind,
			Status_Desc,
			CreateOn_Date,
			UpdateOn_Date,
		}

		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			public Data()
			{
				//Status = FacilityStatus;
			}
			public SysId DepartmentId { get; set; }
			public Spm.FacilityType FacilityType { get; set; }
			public String Name { get; set; }
			public String SortCode { get; set; }
			public String Desc { get; set; }
			public Spm.FacilityTemplateMapType TemplateMapType { get; set; }
			public Spm.ScheduleFreezeType ScheduleFreezeType { get; set; }
			public DateTime ScheduleFreezeAtTime { get; set; }
			public String ScheduleFreezeData { get; set; }
			public DateTime ApplicationFrom { get; set; }
			public DateTime ApplicationTo { get; set; }
			internal void PopulateFrom(Data data)
			{
				DepartmentId = data.DepartmentId;
				FacilityType = data.FacilityType;
				Name = data.Name;
				SortCode = data.SortCode;
				Desc = data.Desc;
				TemplateMapType = data.TemplateMapType;
				ScheduleFreezeType = data.ScheduleFreezeType;
				ScheduleFreezeAtTime = data.ScheduleFreezeAtTime;
				ScheduleFreezeData = data.ScheduleFreezeData;
				ApplicationFrom = data.ApplicationFrom;
				ApplicationTo = data.ApplicationTo;
				base.PopulateFrom(data);
			}
			public Data Clone()
			{
				Data data = new Data();
				data.PopulateFrom(this);
				return data;
			}
		}

		// ErrField.
		public new class ErrField : SacsHierarchyItem.ErrField
		{
			public ValidValue DepartmentId { get; set; } = ValidValue.Valid;
			public ValidValue FacilityType { get; set; } = ValidValue.Valid;
			public ValidValue Name { get; set; } = ValidValue.Valid;
			public ValidValue SortCode { get; set; } = ValidValue.Valid;
			public ValidValue Desc { get; set; } = ValidValue.Valid;
			public ValidValue TemplateMapType { get; set; } = ValidValue.Valid;
			public ValidValue ScheduleFreezeType { get; set; } = ValidValue.Valid;
			public ValidValue ScheduleFreezeAtTime { get; set; } = ValidValue.Valid;
			public ValidValue ScheduleFreezeData { get; set; } = ValidValue.Valid;
			public ValidValue ApplicationFrom { get; set; } = ValidValue.Valid;
			public ValidValue ApplicationTo { get; set; } = ValidValue.Valid;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly Data data = new Data();
		public static readonly ushort Flag_BookingToFacility = 0x01;

		//-------------------------------------------------------------------
		// Construction.
		protected SpmFacility(SysId facilityId, SysId departmentId, Spm.FacilityType facilityType) : base()
		{
			departmentId = DepartmentId;
			facilityType = FacilityType;
			Status = DefaultStatus;
			base.SetData(data);
		}

		//-------------------------------------------------------------------
		// Status.
		private static readonly List<SaStatus> facilityStatuses = new List<SaStatus>()
		{
			SaStatus.Current,
		};
		public static SaStatus DefaultStatus { get { return SaStatus.Current; } }
		public static List<SaStatus> FacilityStatuses { get { return new List<SaStatus>(facilityStatuses); } }
		public static DataValue.TriStateType GetStatusTriState(SaStatus status)
		{
			facilityStatuses.Add(SaStatus.Current);

			switch (status)
			{
				case SaStatus.Current:
					return DataValue.TriStateType.Green;
			}
			return DataValue.TriStateType.Unknown;
		}

		//-------------------------------------------------------------------
		// Utilities.
		public Spm.WardAdmissionMode GetBookingMode()
{
	// Based on 'Booking to Facility' flag etc.
	if (FacilityType == Spm.FacilityType.Ward && IsBookingToFacility)
		return Spm.WardAdmissionMode.ByWard;
	return Spm.WardAdmissionMode.ByResource;
}

	public bool IsTemplateRequiredForBooking()
{
	if (GetBookingMode() == Spm.WardAdmissionMode.ByWard)
		return false;
	return true;
}

//-------------------------------------------------------------------
// Properties.
public Data GetData() { return data.Clone(); }
		public void SetData(Data data)
		{
			String fn = GetType().Name + ".SetData";
			// Properties that cannot be changed if previously specified.
			if (SysId.IsValid(Id) && SysId.ToInt(Id) != SysId.ToInt(data.Id))
				throw new NotSupportedException(fn + " Id cannot be changed");
			this.data.PopulateFrom(data);
		}

		//-------------------------------------------------------------------
		// Attributes.
		public SysId DepartmentId
		{
			get { return data.DepartmentId; }
			set { CheckChanged(data.DepartmentId, value); data.DepartmentId = value; }
		}
		public Spm.FacilityType FacilityType
		{
			get { return data.FacilityType; }
			set { CheckChanged((int)data.FacilityType, (int)value); data.FacilityType = value; }
		}
		public String Name
		{
			get { return data.Name; }
			set { CheckChanged(data.Name, value); data.Name = value; }
		}
		public String SortCode
		{
			get { return data.SortCode; }
			set { CheckChanged(data.SortCode, value); data.SortCode = value; }
		}
		public String Desc
		{
			get { return data.Desc; }
			set { CheckChanged(data.Desc, value); data.Desc = value; }
		}
		public Spm.FacilityTemplateMapType TemplateMapType
		{
			get { return data.TemplateMapType; }
			set { CheckChanged((int)data.TemplateMapType, (int)value); data.TemplateMapType = value; }
		}
		public Spm.ScheduleFreezeType ScheduleFreezeType
		{
			get { return data.ScheduleFreezeType; }
			set { CheckChanged((int)data.ScheduleFreezeType, (int)value); data.ScheduleFreezeType = value; }
		}
		public DateTime ScheduleFreezeAtTime
		{
			get { return data.ScheduleFreezeAtTime; }
			set { CheckChanged(data.ScheduleFreezeAtTime, value); data.ScheduleFreezeAtTime = value; }
		}
		public String ScheduleFreezeData
		{
			get { return data.ScheduleFreezeData; }
			set { CheckChanged(data.ScheduleFreezeData, value); data.ScheduleFreezeData = value; }
		}
		public DateTime ApplicationFrom
		{
			get { return data.ApplicationFrom; }
			set { CheckChanged(data.ApplicationFrom, value); data.ApplicationFrom = value; }
		}
		public DateTime ApplicationTo
		{
			get { return data.ApplicationTo; }
			set { CheckChanged(data.ApplicationTo, value); data.ApplicationTo = value; }
		}

		//-------------------------------------------------------------------
		// Flags.
		public bool IsBookingToFacility
		{
			get { return GetFlag(Flag_BookingToFacility); }
			set { SetFlag(Flag_BookingToFacility, value); }
		}

		//-------------------------------------------------------------------
		//          A s s o c i a t e d   D a t a   E l e m e n t s
		//-------------------------------------------------------------------
		public abstract bool HasTemplates();   // eg. Slots.
		public abstract bool HasSessions();
		public abstract bool HasSessionsBefore(DateTime target, ref DateTime? earliest, ref DateTime? latest);
		public abstract bool HasSessionsAfter(DateTime target, ref DateTime? earliest, ref DateTime? latest);
		public abstract bool HasSessions(DateTime before, DateTime after, ref DateTime? earliest, ref DateTime? latest);
		public abstract bool HasAdmissions(Spm.AdmissionCancelType admissionCancelType);
		public abstract bool HasAdmissionsBefore(DateTime target, Spm.AdmissionCancelType admissionCancelType, ref DateTime? earliest, ref DateTime? latest);
		public abstract bool HasAdmissionsAfter(DateTime target, Spm.AdmissionCancelType admissionCancelType, ref DateTime? earliest, ref DateTime? latest);
		public abstract bool HasAdmissions(DateTime before, DateTime after, Spm.AdmissionCancelType admissionCancelType, ref DateTime? earliest, ref DateTime? latest);

		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		/// <summary>Parameters - used to define the filters that should be applied to a List of Addresses</summary>
		// List parameters.
		public enum StatusCat
		{
			Any,
		}
		/// <summary> Item list parameters. </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			// List filtering.
			public List<SysId> IncludedIds { get; } = new List<SysId>();
			public List<SysId> ExcludedIds { get; } = new List<SysId>();
			// Facility.
			public SysId DepartmentId { get; set; }
			public Spm.FacilityType FacilityType { get; set; }
			public String NamePartial { get; set; }
			public int WeekOfMonth { get; set; }
			public int WorkingDayOfWeek { get; set; }
			public DateTime ApplicationFrom { get; set; }
			public DateTime ApplicationTo { get; set; }
			public DateTime Application { get; set; }
			public DateTime TemplatesApplicationFrom { get; set; }

			public StatusCat StatusCat { get; set; } = StatusCat.Any;
		}
		//-------------------------------------------------------------------
	}
	//=======================================================================
	//                 Facility   D a t a   L i s t
	//=======================================================================
	public static class SpmFacilityList
	{
	}

	//=======================================================================
}