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

namespace Sarand.Net.Standard.Base.ReferenceData
{
	//=======================================================================
	public abstract class SaCurrency : SacsHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Hidden,
			Pos,
			Id,
			// Currency.
			Code,
			Name,
			PrimaryCurrencyId,
			PrimaryCurrency_Code,
			PrimaryCurrency_Name,
			Division,
			RegionId,
			Region_Name,
			Symbol,
			SuffixSymbol_Y,
			SuffixSymbol_Tick,
			IncludeSpace_Y,
			IncludeSpace_Tick,
			Decimals,
			// Common properties.
			CreateOn_Date,
			UpdateOn_Date,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public String Code { get; set; } = "";
			public String Name { get; set; } = "";
			public SysId CurrencyIdPrimary { get; set; } = new SysId();
			public String Division { get; set; } = "";
			public SysId RegionId { get; set; } = new SysId();
			public String Symbol { get; set; } = "";
			public bool SuffixSymbol { get; set; } = false;
			public bool IncludeSpace { get; set; } = false;
			public short Decimals { get; set; } = 0;
		}

		//-------------------------------------------------------------------
		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data ()
			{
				// Currency has no status.
			}
			// Properties.
			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; }
			}
			public SysId CurrencyIdPrimary
			{
				get { return data.CurrencyIdPrimary; }
				set { CheckChanged(data.CurrencyIdPrimary, value); data.CurrencyIdPrimary = value; }
			}
			public String Division
			{
				get { return data.Division; }
				set { CheckChanged(data.Division, value); data.Division = value; }
			}
			public SysId RegionId
			{
				get { return data.RegionId; }
				set { CheckChanged(data.RegionId, value); data.RegionId = value; }
			}
			public String Symbol
			{
				get { return data.Symbol; }
				set { CheckChanged(data.Symbol, value); data.Symbol = value; }
			}
			public bool SuffixSymbol
			{
				get { return data.SuffixSymbol; }
				set { CheckChanged(data.SuffixSymbol, value); data.SuffixSymbol = value; }
			}
			public bool IncludeSpace
			{
				get { return data.IncludeSpace; }
				set { CheckChanged(data.IncludeSpace, value); data.IncludeSpace = value; }
			}
			public short Decimals
			{
				get { return data.Decimals; }
				set { CheckChanged(data.Decimals, value); data.Decimals = value; }
			}

			internal void PopulateFrom (Data data)
			{
				Code = data.Code;
				Name = data.Name;
				CurrencyIdPrimary = data.CurrencyIdPrimary;
				Division = data.Division;
				RegionId = data.RegionId;
				Symbol = data.Symbol;
				SuffixSymbol = data.SuffixSymbol;
				IncludeSpace = data.IncludeSpace;
				Decimals = data.Decimals;
				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 Code { get; set; } = ValidValue.Valid;
			public ValidValue Name { get; set; } = ValidValue.Valid;
			public ValidValue CurrencyIdPrimary { get; set; } = ValidValue.Valid;
			public ValidValue Division { get; set; } = ValidValue.Valid;
			public ValidValue RegionId { get; set; } = ValidValue.Valid;
			public ValidValue Symbol { get; set; } = ValidValue.Valid;
			public ValidValue SuffixSymbol { get; set; } = ValidValue.Valid;
			public ValidValue IncludeSpace { get; set; } = ValidValue.Valid;
			public ValidValue Decimals { get; set; } = ValidValue.Valid;
		}

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

		//-------------------------------------------------------------------
		// Static construction.
		static SaCurrency ()
		{
		}

		//-------------------------------------------------------------------
		// Construction.
		protected SaCurrency (SysId id) : base(id)
		{
			base.SetData(data);
			// Currency has no status.
		}

		//-------------------------------------------------------------------
		// Statuses - not applicable for currencies.

		//-------------------------------------------------------------------
		// Utilities.
		public String FormatAmount (decimal amount)
		{
			return FormatAmount(Symbol, SuffixSymbol, IncludeSpace, amount, Decimals);
		}
		public static String FormatAmount (String symbol, bool suffix, bool includeSpace, decimal amount, short decimals)
		{
			String format = "N" + Math.Max(0, Math.Min(10, (int)decimals));
			String amountFmt = amount.ToString(format);
			if (suffix) amountFmt += (includeSpace ? " " : "") + symbol;
			else amountFmt = symbol + (includeSpace ? " " : "") + amountFmt;
			return amountFmt;
		}

		//-------------------------------------------------------------------
		// Data.
		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");
			// Populate individual properties to ensure that 'Changed' indicator is kept up to date.
			this.data.PopulateFrom(data);
		}

		//-------------------------------------------------------------------
		// Properties.
		public String Code
		{
			get { return data.Code; }
			set { data.Code = value; }
		}
		public String Name
		{
			get { return data.Name; }
			set { data.Name = value; }
		}
		public SysId CurrencyIdPrimary
		{
			get { return data.CurrencyIdPrimary; }
			set { data.CurrencyIdPrimary = value; }
		}
		public String Division
		{
			get { return data.Division; }
			set { data.Division = value; }
		}
		public SysId RegionId
		{
			get { return data.RegionId; }
			set { data.RegionId = value; }
		}
		public String Symbol
		{
			get { return data.Symbol; }
			set { data.Symbol = value; }
		}
		public bool SuffixSymbol
		{
			get { return data.SuffixSymbol; }
			set { data.SuffixSymbol = value; }
		}
		public bool IncludeSpace
		{
			get { return data.IncludeSpace; }
			set { data.IncludeSpace = value; }
		}
		public short Decimals
		{
			get { return data.Decimals; }
			set { data.Decimals = 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 HasDependentCurrencies ();

		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		/// <summary>
		/// Parameters - used to define the filters that should be applied to a List of Currencies
		/// </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>();
			// Currency.
			public String Code { get; set; }
			public String CodePartial { get; set; }
			public String Name { get; set; }
			public String NamePartial { get; set; }
			public SysId RegionId { get; set; }
			public StatusCat StatusCat { get; set; } = StatusCat.Any;
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
	//                 C u r r e n c y   D a t a   L i s t
	//=======================================================================
	public static class SaCurrencyList
	{
		public static SaCurrency FindById (this List<SaCurrency> values, SysId currencyId)
		{
			if (!SysId.IsValid(currencyId)) return null;
			return values.Find(item => item.Id.Equals(currencyId));
		}
		public static SaCurrency FindByCode (this List<SaCurrency> values, String currencyCode)
		{
			if (StringUtil.IsEmpty(currencyCode)) return null;
			return values.Find(item => item.Code.EqualsCI(currencyCode));
		}
		public static SaCurrency FindBySymbol (this List<SaCurrency> values, String currencySymbol)
		{
			if (StringUtil.IsEmpty(currencySymbol)) return null;
			return values.Find(item => item.Symbol.EqualsCI(currencySymbol));
		}
	}
	//=======================================================================
}