namespace Server.Engines.Mahjong
{
  public class MahjongDealerIndicator
  {
    public MahjongDealerIndicator(MahjongGame game, Point2D position, MahjongPieceDirection direction, MahjongWind wind)
    {
      Game = game;
      Position = position;
      Direction = direction;
      Wind = wind;
    }

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

      int version = reader.ReadInt();

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

    public MahjongGame Game{ get; }

    public Point2D Position{ get; private set; }

    public MahjongPieceDirection Direction{ get; private set; }

    public MahjongWind Wind{ get; private set; }

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

    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 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(0); // version

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