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

namespace Sarand.Net.Standard.Base.Core
{
	//=======================================================================
	public class CodeDesc
	{
		//-------------------------------------------------------------------
		// Data members.
		//-------------------------------------------------------------------
		public CodeDesc (String code, String desc, String comment = "")
		{
			Code = StringUtil.EmptyOnNull(code);
			Desc = StringUtil.EmptyOnNull(desc);
			Comment = StringUtil.EmptyOnNull(comment);
		}
		//-------------------------------------------------------------------
		// Properties.
		public String Code { get; }
		public String Desc { get; }
		public String Comment { get; }
		//-------------------------------------------------------------------
	}
	//=======================================================================
	public static class CodeDescList
	{
		//-------------------------------------------------------------------
		// Population.
		public static void Add (this List<CodeDesc> values, String code, string desc, String comment = "")
		{
			values.Add(new CodeDesc(code, desc, comment));
		}
		public static void Insert (this List<CodeDesc> values, int idx, String code, string desc, String comment = "")
		{
			values.Insert (idx, new CodeDesc(code, desc, comment));
		}

		//-------------------------------------------------------------------
		// Sorting.
		public static void SortByCode (this List<CodeDesc> values)
		{
			values.Sort(
				delegate (CodeDesc codeDesc1, CodeDesc codeDesc2)
				{
					return codeDesc1.Code.CompareTo(codeDesc2.Code);
				}
			);
		}
		public static void SortByDesc (this List<CodeDesc> values)
		{
			values.Sort(
				delegate (CodeDesc codeDesc1, CodeDesc codeDesc2)
				{
					return codeDesc1.Desc.CompareTo(codeDesc2.Desc);
				}
			);
		}

		//-------------------------------------------------------------------
		// Conversion.
		public static List<String> GetCodeList (this List<CodeDesc> values)
		{
			List<String> codes = new List<string>();
			foreach (var value in values)
				if (!codes.Contains(value.Code)) codes.Add(value.Code);
			return codes;
		}
		public static List<String> GetDescList (this List<CodeDesc> values)
		{
			List<String> descs = new List<string>();
			foreach (var value in values)
				if (!descs.Contains(value.Desc)) descs.Add(value.Desc);
			return descs;
		}

		//-------------------------------------------------------------------
		// Lookup.
		public static bool FindCode (this List<CodeDesc> values, String code)
		{
			return values.Exists(item => item.Code.EqualsCI(code));
		}
		public static CodeDesc GetByCode (this List<CodeDesc> values, String code)
		{
			return values.Find(item => item.Code.EqualsCI(code));
		}
		public static CodeDesc GetByNumericCode (this List<CodeDesc> values, String code)
		{
			if (!StringUtil.IsNumeric(code)) return null;
			return values.Find(item => StringUtil.IsNumeric(item.Code) && StringUtil.ToInt(item.Code) == StringUtil.ToInt(code));
		}

		//-------------------------------------------------------------------
		// Lookup code.
		/// <summary>Return code matching supplied code (case-insenstive) - to ensure case matches list.</summary>
		public static String GetCodeForCode (this List<CodeDesc> values, String code, String defaultValue = "")
		{
			foreach (var value in values)
				if (value.Code.EqualsCI(code)) return value.Code;
			return StringUtil.EmptyOnNull(defaultValue);
		}
		/// <summary>Return code matching supplied description (case-insenstive).</summary>
		public static String GetCodeForDesc (this List<CodeDesc> values, String desc, String defaultValue = "")
		{
			foreach (var value in values)
				if (value.Desc.EqualsCI(desc)) return value.Code;
			return StringUtil.EmptyOnNull(defaultValue);
		}

		//-------------------------------------------------------------------
		// Lookup desc.
		public static String GetDescForCode (this List<CodeDesc> values, String code, String defaultValue = "")
		{
			foreach (var value in values)
				if (value.Code.EqualsCI(code)) return value.Desc;
			return StringUtil.EmptyOnNull(defaultValue);
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}