// This file (UnitEquipmentRatioSelection.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2009 IBBoard
// 
// The file and the library/program it is in are licensed and distributed, without warranty, under the GNU Affero GPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.

using System;
using IBBoard.CustomMath;
using IBBoard.Limits;
using IBBoard.WarFoundry.API.Util;

namespace IBBoard.WarFoundry.API.Objects
{	
	/// <summary>
	/// An object to hold the selection of a unit's equipment where the selection was made as a percentage or ratio
	/// of the total size of the unit
	/// </summary>
	public class UnitEquipmentRatioSelection : AbstractUnitEquipmentItemSelection
	{	
		public UnitEquipmentRatioSelection(Unit unit, UnitEquipmentItem item, double amount) : base(unit, item, amount)
		{
		}
		
		public UnitEquipmentRatioSelection(Unit unit, UnitEquipmentItem item) : base(unit, item, ((IPercentageLimit)item.MinLimit).Percentage)
		{
		}
					
		public override int NumberTaken
		{
			get
			{
				double exactNumberTaken = (AmountTaken / 100) * EquipmentForUnit.Size;
				int wholeNumberTaken = (int) IBBMath.Round(exactNumberTaken, EquipmentItem.RoundNumberUp);
				int maxTaken = UnitEquipmentUtil.GetMaxEquipmentCount(EquipmentForUnit, EquipmentItem);
				int minTaken = UnitEquipmentUtil.GetMinEquipmentCount(EquipmentForUnit, EquipmentItem);
				return Math.Min(Math.Max(wholeNumberTaken, minTaken), maxTaken);
			}
		}

		[Obsolete("Implementation is down to the UI")]
		public override string GetEquipmentAmountString ()
		{
			return GetEquipmentAmountString(AmountTaken);
		}

		[Obsolete("Implementation is down to the UI")]
		public static string GetEquipmentAmountString(double amount)
		{
			string amountString;
			
			if (amount == 100)
			{
				amountString = "all"; //TODO: Translate
			}
			else
			{
				amountString = amount  + "%";
			}

			return amountString;
		}

	}
}