using Sarand.BusinessMgr.Net.Standard.Base.App;
using Sarand.BusinessMgr.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Utils;
using System;
using System.Collections.Generic;

namespace Sarand.BusinessMgr.Net.Standard.Base.Bus
{
	//=======================================================================
	public abstract class SbmLocation : SbmHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Hidden,
			Pos,
			Id,
			// Location.
			OwnerName,
			Category_Desc,
			Code,
			Name,
			SalesStock_Y,
			SalesStock_Tick,
			CalculateStock_Y,
			CalculateStock_Tick,
			// Common properties.
			Notes,
			Flags,
			Status,
			Status_Desc,
			Status_Ind,
			CreateOn_Date,
			UpdateOn_Date,
			StockLevelCount,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public SysId AffiliateIdOwner { get; set; } = new SysId();
			public Sbm.LocationCategory LocationCategory { get; set; } = Sbm.LocationCategory.Unknown;
			public String Code { get; set; } = "";
			public String Name { get; set; } = "";
		}

		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data()
			{
				Status = DefaultStatus;
			}
			public SysId AffiliateIdOwner
			{
				get { return data.AffiliateIdOwner; }
				set { CheckChanged(data.AffiliateIdOwner, value); data.AffiliateIdOwner = value; }
			}
			public Sbm.LocationCategory LocationCategory
			{
				get { return data.LocationCategory; }
				set { CheckChanged((int)data.LocationCategory, (int)value); data.LocationCategory = value; }
			}
			public String Code
			{
				get { return data.Code; }
				set { CheckChanged(data.Code, value); data.Code = value; }
			}
			public String Name
			{
				get { return data.Name; }
				set { CheckChanged(data.Name, value); data.Name = value; }
			}

			internal void PopulateFrom(Data data)
			{
				AffiliateIdOwner = data.AffiliateIdOwner;
				LocationCategory = data.LocationCategory;
				Code = data.Code;
				Name = data.Name;
				base.PopulateFrom(data);
			}
			public Data Clone()
			{
				Data data = new Data();
				data.PopulateFrom(this);
				return data;
			}
		}

		public new class ErrField : SacsHierarchyItem.ErrField
		{
			// Identifies the field that has invalid data.
			public ValidValue Type { get; set; } = ValidValue.Valid;
			public ValidValue AffiliateIdOwner { get; set; } = ValidValue.Valid;
			public ValidValue LocationCategory { get; set; } = ValidValue.Valid;
			public ValidValue Code { get; set; } = ValidValue.Valid;
			public ValidValue Name { get; set; } = ValidValue.Valid;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly Data data = new Data();
		public static readonly Byte Flag_SalesStock = 0x01;
		public static readonly Byte Flag_CalculateStock = 0x02;

		//-------------------------------------------------------------------
		// Construction.
		protected SbmLocation(ISbmUserContext_Core userContext, SysId id, SysId affiliateIdOwner, Sbm.LocationCategory locationCategory) : base(userContext, id)
		{
			base.SetData(data);
			AffiliateIdOwner = affiliateIdOwner;
			LocationCategory = locationCategory;
			Status = DefaultStatus;
		}

		//-------------------------------------------------------------------
		// Location status.
		private static readonly List<SaStatus> locationStatuses = new List<SaStatus>()
		{
			SaStatus.Active,
			SaStatus.Disabled,
		};
		public static SaStatus DefaultStatus { get { return SaStatus.Current; } }
		public static List<SaStatus> LocationStatuses { get { return new List<SaStatus>(locationStatuses); } }
		public static DataValue.TriStateType GetStatusTriState(SaStatus status)
		{
			switch (status)
			{
				case SaStatus.Active:
					return DataValue.TriStateType.Green;
				case SaStatus.OnHold:
					return DataValue.TriStateType.Amber;
				case SaStatus.Disabled:
					return DataValue.TriStateType.Red;
				case SaStatus.Deleted:
					return DataValue.TriStateType.Purple;
			}
			return DataValue.TriStateType.Unknown;
		}

		//-------------------------------------------------------------------
		// Utilities.

		//-------------------------------------------------------------------
		// Properties.
		public Data GetData() { return data.Clone(); }
		public void SetData(Data data)
		{
			// Properties that cannot be changed if previously specified.
			if (SysId.IsValid(Id) && SysId.ToInt(Id) != SysId.ToInt(data.Id))
				throw new NotSupportedException($"{SysUtil.Fn} Id cannot be changed");
			// Populate individual properties to ensure that 'Changed' indicator is kept up to date.
			this.data.PopulateFrom(data);
		}

		//-------------------------------------------------------------------
		// Attributes.
		public SysId AffiliateIdOwner
		{
			get { return data.AffiliateIdOwner; }
			set { data.AffiliateIdOwner = value; }
		}
		public Sbm.LocationCategory LocationCategory
		{
			get { return data.LocationCategory; }
			set { data.LocationCategory = value; }
		}
		public String Code
		{
			get { return data.Code; }
			set { data.Code = value; }
		}
		public String Name
		{
			get { return data.Name; }
			set { data.Name = value; }
		}

		//-------------------------------------------------------------------
		// Flags.
		public bool SalesStock
		{
			get { return GetFlag(Flag_SalesStock); }
			set { SetFlag(Flag_SalesStock, value); }
		}
		public bool CalculateStock
		{
			get { return GetFlag(Flag_CalculateStock); }
			set { SetFlag(Flag_CalculateStock, 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 HaveMovement();
		public abstract bool HaveStockLevel();
		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		/// <summary>Parameters - used to define the filters that should be applied to a List of Locations</summary>
		// List parameters.
		public enum StatusCat
		{
			Any,
			ActiveOnly,
			InactiveOnly,
			NotDeleted,
			DeletedOnly
		}
		/// <summary>
		/// Item list parameters.
		/// </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			// List filtering.
			public List<SysId> IdsIncluded { get; } = new List<SysId>();
			public List<SysId> IdsExcluded { get; } = new List<SysId>();
			// Location.
			public SysId AffiliateIdOwner { get; set; }
			public Sbm.LocationCategory LocationCategory { get; set; }
			public String Code { get; set; }
			public String CodePartial { get; set; }
			public String Name { get; set; }
			public String NamePartial { get; set; }
			public bool RestrictToSalesStock { get; set; } = false;
			public bool RestrictToCalculateStock { get; set; } = false;
			/// <summary>Location status.</summary>
			public StatusCat StatusCat { get; set; } = StatusCat.NotDeleted;
			// Utilities.
			public List<StringPair> GetDisplayValues()
			{
				List<StringPair> values = new List<StringPair>();
				return values;
			}
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
	//                 L o c a t i o n   D a t a   L i s t
	//=======================================================================
	public static class SbmLocationList
	{
		/// <summary>Check whether currency exists/locate in list with specified Id.</summary>
		public static bool Find(this List<SbmLocation> values, SbmLocation location)
		{
			if (location == null) return false;
			return (values.Find(item => item == location) != null);
		}
		public static bool FindById(this List<SbmLocation> values, SysId locationId)
		{
			if (!SysId.IsValid(locationId)) return false;
			return values.Exists(item => item.Id.Equals(locationId));
		}
	}
	//=======================================================================
}