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

namespace DominionBase.Cards.Nocturne
{
	public class Shepherd : Card
	{
		public Shepherd()
			: base(Categories.Action, Source.Nocturne, Location.Kingdom, Traits.ConditionalBenefit | Traits.Discard | Traits.PlusAction | Traits.PlusCard)
		{
			BaseCost = new Cost(4);
			Benefit.Actions = 1;
		}

		public override void SetupSupply(IGame game, ISupply supply)
		{
			Contract.Requires(game != null, "game cannot be null");
			base.SetupSupply(game, supply);

			for (var i = 0; i < game.Players.Count; i++)
			{
				Card card = new Pasture();
				game.Table.Copper.AddTo(card);
				card.SetupCard(game);
			}
		}

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

			var victoryCards = player.Hand[Categories.Victory];
			var choice = new Choice("Discard any number of Victory cards.  +2 Cards per card discarded.", this, victoryCards, ChoiceOutcome.Discard, player, minimum: 0, maximum: victoryCards.Count);
			var result = player.MakeChoice(choice);

			player.AddCardsInto(DeckLocation.Revealed, result.Cards);
			player.Discard(DeckLocation.Hand, player.RetrieveCardsFrom(DeckLocation.Revealed, result.Cards));

			var benefit = new CardBenefit();
			benefit.Cards += 2 * result.Cards.Count;
			player.ReceiveBenefit(this, benefit);
		}
	}
}