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 SbmPrice : SbmHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Hidden,
			Pos,
			// Price set.
			PriceSetId,
			PriceSet_Reference,
			PriceSet_Name,
			// Commodity.
			CommodityId,
			Commodity_Code,
			Commodity_SalesPrice,
			// Price.
			PriceType,
			PriceType_Desc,
			CalculationMethod,
			CalculationMethod_Desc,
			CalculationValue,
			RounderMethod,
			RounderMethod_Desc,
			RounderDirection,
			RounderDirection_Desc,
			RounderMultipleOf,
			RounderAdjustment,
			// Derived properties.
			SalesDiscountPercent,
			// Common properties.
			Notes,
			Status,
			Status_Desc,
			Status_Ind,
			CreateOn_Date,
			UpdateOn_Date,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public SysId PriceSetId { get; set; } = new SysId();
			public SysId CommodityId { get; set; } = new SysId();
			public Sbm.PriceType PriceType { get; set; } = Sbm.PriceType.Unknown;
			public Sbm.PriceCalcMethod CalculationMethod { get; set; } = Sbm.PriceCalcMethod.Unknown;
			public decimal CalculationValue { get; set; } = 0.0m;
			public Sbm.PriceRounderMethod RounderMethod { get; set; } = Sbm.PriceRounderMethod.Unknown;
			public Sbm.PriceRounderDirection RounderDirection { get; set; } = Sbm.PriceRounderDirection.Unknown;
			public decimal RounderMultipleOf { get; set; } = 0.0m;
			public decimal RounderAdjustment { get; set; } = 0.0m;
		}

		//-------------------------------------------------------------------
		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data()
			{
				Status = DefaultStatus;
			}
			// Properties.
			public SysId PriceSetId
			{
				get { return data.PriceSetId; }
				set { CheckChanged(data.PriceSetId, value); data.PriceSetId = value; }
			}
			public SysId CommodityId
			{
				get { return data.CommodityId; }
				set { CheckChanged(data.CommodityId, value); data.CommodityId = value; }
			}
			public Sbm.PriceType PriceType
			{
				get { return data.PriceType; }
				set { CheckChanged((int)data.PriceType, (int)value); data.PriceType = value; }
			}
			public Sbm.PriceCalcMethod CalculationMethod
			{
				get { return data.CalculationMethod; }
				set { CheckChanged((int)data.CalculationMethod, (int)value); data.CalculationMethod = value; }
			}
			public decimal CalculationValue
			{
				get { return data.CalculationValue; }
				set { CheckChanged(data.CalculationValue, value); data.CalculationValue = value; }
			}
			public Sbm.PriceRounderMethod RounderMethod
			{
				get { return data.RounderMethod; }
				set { CheckChanged((int)data.RounderMethod, (int)value); data.RounderMethod = value; }
			}
			public Sbm.PriceRounderDirection RounderDirection
			{
				get { return data.RounderDirection; }
				set { CheckChanged((int)data.RounderDirection, (int)value); data.RounderDirection = value; }
			}
			public decimal RounderMultipleOf
			{
				get { return data.RounderMultipleOf; }
				set { CheckChanged((int)data.RounderMultipleOf, (int)value); data.RounderMultipleOf = value; }
			}
			public decimal RounderAdjustment
			{
				get { return data.RounderAdjustment; }
				set { CheckChanged(data.RounderAdjustment, value); data.RounderAdjustment = value; }
			}
			// Population.
			internal void PopulateFrom(Data data)
			{
				PriceSetId = data.PriceSetId;
				CommodityId = data.CommodityId;
				PriceType = data.PriceType;
				CalculationMethod = data.CalculationMethod;
				CalculationValue = data.CalculationValue;
				RounderMethod = data.RounderMethod;
				RounderDirection = data.RounderDirection;
				RounderMultipleOf = data.RounderMultipleOf;
				RounderAdjustment = data.RounderAdjustment;
				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 PriceSetId { get; set; } = ValidValue.Valid;
			public ValidValue CommodityId { get; set; } = ValidValue.Valid;
			public ValidValue Type { get; set; } = ValidValue.Valid;
			public ValidValue CalcMethod { get; set; } = ValidValue.Valid;
			public ValidValue CalcValue { get; set; } = ValidValue.Valid;
			public ValidValue RounderMethod { get; set; } = ValidValue.Valid;
			public ValidValue RounderDirection { get; set; } = ValidValue.Valid;
			public ValidValue RounderMultipleOf { get; set; } = ValidValue.Valid;
			public ValidValue RounderAdjustment { get; set; } = ValidValue.Valid;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly Data data = new Data();

		//-------------------------------------------------------------------
		// Construction.
		protected SbmPrice(SysId priceSetId, SysId commodityId, Sbm.PriceType priceType) : base()
		{
			base.SetData(data);
			PriceSetId = priceSetId;
			CommodityId = commodityId;
			PriceType = priceType;
			Status = DefaultStatus;
		}

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

		//-------------------------------------------------------------------
		// Utilities.
		public override bool ItemHasId() { return false; }

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

		//-------------------------------------------------------------------
		// Properties.
		public SysId PriceSetId
		{
			get { return data.PriceSetId; }
			protected set { data.PriceSetId = value; }
		}
		public SysId CommodityId
		{
			get { return data.CommodityId; }
			protected set { data.CommodityId = value; }
		}
		public Sbm.PriceType PriceType
		{
			get { return data.PriceType; }
			protected set { data.PriceType = value; }
		}
		public Sbm.PriceCalcMethod CalculationMethod
		{
			get { return data.CalculationMethod; }
			set { data.CalculationMethod = value; }
		}
		public decimal CalculationValue
		{
			get { return data.CalculationValue; }
			set { data.CalculationValue = value; }
		}
		public Sbm.PriceRounderMethod RounderMethod
		{
			get { return data.RounderMethod; }
			set { data.RounderMethod = value; }
		}
		public Sbm.PriceRounderDirection RounderDirection
		{
			get { return data.RounderDirection; }
			set { data.RounderDirection = value; }
		}
		public decimal RounderMultipleOf
		{
			get { return data.RounderMultipleOf; }
			set { data.RounderMultipleOf = value; }
		}
		public decimal RounderAdjustment
		{
			get { return data.RounderAdjustment; }
			set { data.RounderAdjustment = value; }
		}

		//-------------------------------------------------------------------
		//          A s s o c i a t e d   D a t a   E l e m e n t s          
		//-------------------------------------------------------------------

		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		/// <summary>Parameters - used to define the filters that should be applied to a List of Prices</summary>
		// List parameters.
		public enum StatusCat
		{
			Any,
			ActiveOnly,
			NotDeleted,
			DeletedOnly
		}
		/// <summary>
		/// Item list parameters.
		/// </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			// Price.
			public SysId PriceSetId { get; set; }
			public SysId CommodityId { get; set; }
			public Sbm.PriceType PriceType { get; set; } = Sbm.PriceType.Unknown;
			public Sbm.PriceCalcMethod CalculationMethod { get; set; } = Sbm.PriceCalcMethod.Unknown;
			public decimal CalculationValue { get; set; }
			public Sbm.PriceRounderMethod RounderMethod { get; set; } = Sbm.PriceRounderMethod.Unknown;
			public Sbm.PriceRounderDirection RounderDirection { get; set; } = Sbm.PriceRounderDirection.Unknown;
			/// <summary>Price status.</summary>
			public StatusCat StatusCat { get; set; } = StatusCat.NotDeleted;
		}

		//-------------------------------------------------------------------
	}

	//=======================================================================
	//                          P r i c e   L i s t
	//=======================================================================
	public static class SbmSaPriceList
	{
		/// <summary>Check whether item exists/locate in list with specified Id.</summary>
	}

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