using DominionBase.Enums;
using System.Diagnostics.Contracts;
using System.Linq;

namespace DominionBase.Cards.Menagerie
{
	public class Commerce : Event
	{
		public Commerce()
			: base(Source.Menagerie, 5, Traits.Gainer)
		{
		}

		public override void Bought(IPlayer player)
		{
			Contract.Requires(player != null, "player cannot be null");
			base.Bought(player);

			var uniqueGained = player.CurrentTurn.CardsGained.GroupBy(c => c.Name).Count();
			if (uniqueGained > 0)
				player.Gain(player._Game.Table.Gold, this, uniqueGained);
		}
	}
}