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

namespace DominionBase.Cards.Renaissance
{
	public class Experiment : Card
	{
		public Experiment()
			: base(Categories.Action, Source.Renaissance, Location.Kingdom, Traits.DeckReduction | Traits.Gainer | Traits.NetCardDraw | Traits.PlusAction | Traits.PlusCard | Traits.ReactToGain)
		{
			BaseCost = new Cost(3);
			Benefit.Actions = 1;
			Benefit.Cards = 2;
		}

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

			foreach (var player in game.Players)
				player.CardGained += Player_CardGained;
		}

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

			foreach (var player in game.Players)
				player.CardGained -= Player_CardGained;
		}

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

			if (player.InPlay.Contains(PhysicalCard))
			{
				player.RetrieveCardFrom(DeckLocation.InPlay, PhysicalCard);
				var supply = (ISupply)player._Game.Table[Type];
				player.Lose(this);
				supply.AddTo(this);
				player._Game.SendMessage(player, this, "Return", supply);
			}
		}

		private void Player_CardGained(object sender, CardGainEventArgs e)
		{
			var player = sender as IPlayer;
			var key = Type.ToString();

			// This is not the card you are looking for
			if (e.Card != this || e.Resolvers.ContainsKey(key) || e.HandledBy.Contains(this))
				return;

			// Experiment gain chain is explicitly not allowed
			if (e.Source != null && e.Source.Type == Type)
				return;

			e.Resolvers[key] = new CardGainResolver(player, this, "GainExperiment", "Gain another Experiment", Player_GainExperiment, true);
		}

		internal void Player_GainExperiment(IPlayer player, ref CardGainEventArgs e)
		{
			player.Gain((ISupply)player._Game.Table[Type], this);

			e.HandledBy.Add(this);
		}
	}
}