using Sandbox;
using System.Threading.Tasks;

public class CardUFO : Card
{
	public override bool ShouldHandleEvent( EventType eventType )
	{
		return eventType == EventType.Match && Manager.Instance.ChosenCards.Contains(this);
	}

	public override async Task HandleEventAsync( EventType eventType )
	{
		var nearbyCards = Manager.Instance.GetNearbyCards( GridPos );
		if ( nearbyCards.Count == 0 )
			return;

		if ( nearbyCards.Count == 1 && nearbyCards[0].CardType == CardType.UFO && nearbyCards[0].IsRevealed )
			return;

		List<Card> cardsToShuffle = new();
		foreach(var card in nearbyCards)
		{
			if ( !card.CantBeMoved )
				cardsToShuffle.Add( card );
		}

		Manager.Instance.PushEventMessage( this, eventType );

		await Task.DelayRealtime( 300 );

		Manager.Instance.PlayCardSfx( "ufo_ascend", this, volume: 1.3f, pitch: Game.Random.Float(0.95f, 0.98f) );

		await Task.DelayRealtime( 500 );

		MoveToPos( Manager.GetCardPos(GridPos).WithZ( 100f ), 0.4f, EasingType.SineInOut );

		await Task.DelayRealtime( 400 );

		Manager.Instance.PlayCardSfx( "ufo_receive", this, volume: 1.2f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		// move other cards to self
		int cardNum = 0;
		foreach(var card in cardsToShuffle)
		{
			if ( card == this )
				continue;

			card.MoveToPos( Manager.GetCardPos( GridPos ).WithZ( 50f - cardNum * 0.1f ), 0.6f, EasingType.SineInOut );
			cardNum++;
		}

		await Task.DelayRealtime( 950 );

		Manager.Instance.PlayCardSfx( "ufo_expel", this, volume: 1.2f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		await Task.DelayRealtime( 400 );

		List<IntVector2> newGridPositions = new();
		foreach ( var card in cardsToShuffle )
			newGridPositions.Add( card.GridPos );
		newGridPositions.Shuffle();

		foreach ( var card in cardsToShuffle )
			Manager.Instance.RemoveCardGridPos( card );

		// move cards to new positions
		// todo: move to any empty nearby positions?
		int count = 0;
		foreach ( Card card in cardsToShuffle )
		{
			card.MoveToPos( Manager.GetCardPos( newGridPositions[count] ).WithZ( Globals.CARD_DEFAULT_HEIGHT + (card.IsRevealed ? Globals.CARD_ADD_HEIGHT_REVEALED_OR_HOVERED : 0f) ), Game.Random.Float(0.35f, 0.5f), EasingType.QuadInOut );
			count++;
		}

		await Task.DelayRealtime( 500 );

		count = 0;
		foreach ( Card card in cardsToShuffle )
		{
			await Manager.Instance.SetCardGridPos( card, newGridPositions[count] );
			card.IsMovementControlled = false;
			count++;
		}

		Manager.Instance.PlayCardSfx( "ufo_descend", this, volume: 1.3f, pitch: Game.Random.Float( 0.95f, 1.05f ) );

		await Task.DelayRealtime( 450 );

		MoveToPos( Manager.GetCardPos( GridPos ).WithZ( Globals.CARD_DEFAULT_HEIGHT + Globals.CARD_ADD_HEIGHT_REVEALED_OR_HOVERED ), 0.4f, EasingType.SineInOut );

		await Task.DelayRealtime( 400 );

		IsMovementControlled = false;

		await Task.DelayRealtime( 100 );

		Manager.Instance.PopEventMessage();

		await Manager.Instance.EventHappened( EventType.AfterCardsMoved );
	}
}