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

namespace DominionBase.Cards.Nocturne
{
	public class Necromancer : Card
	{
		private readonly CardCollection flippedOverCards = new CardCollection();

		public Necromancer()
			: base(Categories.Action, Source.Nocturne, Location.Kingdom, Traits.ConditionalBenefit)
		{
			BaseCost = new Cost(4);
		}

		public override bool Finalize(IGame game, ISupply supply)
		{
			Contract.Requires(game != null, "game cannot be null");
			if (base.Finalize(game, supply))
				return true;

			// Add Zombies to the Trash
			game.Table.Trash.Add(new ZombieApprentice());
			game.Table.Trash.Add(new ZombieMason());
			game.Table.Trash.Add(new ZombieSpy());

			return false;
		}

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

			var availableCards = player._Game.Table.Trash[c => 
				c.Category.HasFlag(Categories.Action) 
				&& !c.Category.HasFlag(Categories.Duration) 
				&& c.Facing == Facing.FaceUp
				&& c != this
			];

			var choice = new Choice("Choose a face-up non-Duration Action card to play", this, availableCards, ChoiceOutcome.Select, player);
			var result = player.MakeChoice(choice);

			if (result.Cards.Any())
			{
				var card = result.Cards[0];
				card.ModifiedBy = this;
				player.Actions++;
				var previousPlayerMode = player.PutCardIntoPlay(card);
				var logicalCard = card.LogicalCard;
				player.PlayCard(logicalCard, previousPlayerMode);
				player.FlipFaceDown(card);
				flippedOverCards.Add(card);

				player.TurnEnded += Player_TurnEnded;
			}
			else
				player.PlayNothing();
		}

		private void Player_TurnEnded(object sender, TurnEndedEventArgs e)
		{
			IPlayer player = (IPlayer)sender;
			player.TurnEnded -= Player_TurnEnded;
			foreach (var card in flippedOverCards)
				player.FlipFaceUp(card);
			flippedOverCards.Clear();
		}
	}
}