using DominionBase.Currencies;
using DominionBase.Enums;
using DominionBase.Piles;
using DominionBase.Players;
using DominionBase.Properties;
using System.Diagnostics.Contracts;

namespace DominionBase.Cards.Nocturne
{
	public class TheEarthsGift : Boon
	{
		public TheEarthsGift()
			: base(Source.Nocturne, Traits.Discard | Traits.Gainer)
		{
		}

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

			var choiceDiscard = new Choice(Resource.ChooseTreasureDiscard, this, player.Hand[Categories.Treasure], ChoiceOutcome.Discard, player, minimum: 0);
			var resultDiscard = player.MakeChoice(choiceDiscard);
			if (resultDiscard.Cards.Count == 1)
			{
				player.Discard(DeckLocation.Hand, resultDiscard.Cards);

				var gainableSupplies = new SupplyCollection(player._Game.Table.TableEntities.FindAll<ISupply>(supply => supply.CanGain() && supply.CurrentCost <= new Coin(4)));
				var choice = new Choice(Resource.GainUpTo4, this, gainableSupplies, ChoiceOutcome.Gain, player, false);
				var result = player.MakeChoice(choice);
				if (result.Supply != null)
					player.Gain(result.Supply, this);
			}
			return true;
		}
	}
}