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

namespace DominionBase.Cards.Nocturne
{
	public class War : Hex
	{
		public War()
			: base(Source.Nocturne, Traits.Trasher | Traits.Discard)
		{
		}

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

			bool condition(Card card) => player._Game.ComputeCost(card) == new Currency(3) || player._Game.ComputeCost(card) == new Currency(4);

			player.BeginDrawing();
			while (!player.Revealed[condition].Any() && player.CanDraw)
				player.Draw(DeckLocation.Revealed);

			player.EndDrawing();

			var cards = player.Revealed[condition];

			if (cards.Any())
				player.Trash(this, player.RetrieveCardFrom(DeckLocation.Revealed, cards[0]));
			player.DiscardRevealed();
		}
	}
}