using System;
using System.Collections.Generic;
using IBBoard.Lang;
using IBBoard.WarFoundry.API.Objects;

namespace IBBoard.WarFoundry.API.Requirements
{
	/// <summary>
	/// Summary description for RequirementAND.
	/// </summary>
	public class RequirementAND : AbstractRequirement
	{
		private static string and;

		static RequirementAND()
		{
			and = Translation.GetTranslation("requirement_and", true);

			if (and == null)
			{
				and = "{0}; and {1}";
			}
		}

		private AbstractRequirement reqA, reqB;

		public RequirementAND(AbstractRequirement requirementA, AbstractRequirement requirementB)
		{
			reqA = requirementA;
			reqB = requirementB;
		}

		public override AbstractFailedRequirement CanAddToWarFoundryObject(WarFoundryObject obj)
		{	
			FailedRequirement failed = null;
			
			if (reqA.CanAddToWarFoundryObject(obj) !=null || reqB.CanAddToWarFoundryObject(obj)!=null)
			{
				failed = new FailedRequirement(this);
			}
			
			return failed;
		}

		public override AbstractFailedRequirement CanRemoveFromWarFoundryObject(WarFoundryObject obj)
		{
			FailedRequirement failed = null;
			
			if (reqA.CanRemoveFromWarFoundryObject(obj) !=null || reqB.CanRemoveFromWarFoundryObject(obj)!=null)
			{
				failed = new FailedRequirement(this);
			}
			
			return failed;
		}

		public override string Description 
		{
			get { return String.Format(and, reqA.Description, reqB.Description); }
		}
	}
}