namespace Server.Engines.Mahjong
{
	public class MahjongDealerIndicator
	{
		public static MahjongPieceDim GetDimensions( Point2D position, MahjongPieceDirection direction )
		{
			if ( direction == MahjongPieceDirection.Up || direction == MahjongPieceDirection.Down )
				return new MahjongPieceDim( position, 40, 20 );
			return new MahjongPieceDim( position, 20, 40 );
		}

		public MahjongGame Game { get; }

		public Point2D Position { get; private set; }

		public MahjongPieceDirection Direction { get; private set; }

		public MahjongWind Wind { get; private set; }

		public MahjongDealerIndicator( MahjongGame game, Point2D position, MahjongPieceDirection direction, MahjongWind wind )
		{
			Game = game;
			Position = position;
			Direction = direction;
			Wind = wind;
		}

		public MahjongPieceDim Dimensions => GetDimensions( Position, Direction );

		public void Move( Point2D position, MahjongPieceDirection direction, MahjongWind wind )
		{
			MahjongPieceDim dim = GetDimensions( position, direction );

			if ( !dim.IsValid() )
				return;

			Position = position;
			Direction = direction;
			Wind = wind;

			Game.Players.SendGeneralPacket( true, true );
		}

		public void Save( GenericWriter writer )
		{
			writer.Write( (int) 0 ); // version

			writer.Write( Position );
			writer.Write( (int) Direction );
			writer.Write( (int) Wind );
		}

		public MahjongDealerIndicator( MahjongGame game, GenericReader reader )
		{
			Game = game;

			int version = reader.ReadInt();

			Position = reader.ReadPoint2D();
			Direction = (MahjongPieceDirection) reader.ReadInt();
			Wind = (MahjongWind) reader.ReadInt();
		}
	}
}