using System;
using System.Collections.Generic;

namespace Sarand.Net.Standard.Base.Bus
{
	//=======================================================================
	//[Serializable()]
	public class SysIdString
	{
		//-------------------------------------------------------------------
		// Construction.
		public SysIdString (SysId id, String value)
		{
			Id = id;
			Value = value;
		}

		//-------------------------------------------------------------------
		// Properties - for serialisation.
		//[XmlAttribute]
		public SysId Id { get; private set; } = new SysId();
		public String Value { get; private set; } = String.Empty;

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

		//-------------------------------------------------------------------
		// Comparison.
		public override bool Equals (object obj)
		{
			if (obj == null) return false;
			if (!(obj is SysIdString)) return false;
			return Equals(obj as SysIdString);
		}
		public bool Equals (SysIdString value)
		{
			if (value == null) return false;
			// False if either Id value invalid.
			if (SysId.IsValid(this.Id) != SysId.IsValid(value.Id)) return false;
			return (SysId.ToInt(Id).Equals(SysId.ToInt(value.Id)) && Value.Equals(value.Value));
		}
		public override int GetHashCode ()
		{
			return SysId.ToInt(Id);
		}

		//-------------------------------------------------------------------
		// Conversion.

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

	//=======================================================================
	public static class SysIdStringList
	{
		public static void Add(this List<SysIdString> values, SysId id, String value)
		{
			values.Add(new SysIdString(id, value));
		}
		public static String GetValueForId(this List<SysIdString> values, SysId id)
		{
			if (SysId.IsValid(id))
			{
				foreach (SysIdString value in values)
					if (value.Id.Equals(id))
						return value.Value;
			}
			return String.Empty;
		}
	}

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