using ProjectCruiser.DrawningSamples;

namespace ProjectCruiser.MoveStrategy;

// Класс-реализация IMoveableObject с использованием DrawningBase
public class MoveableTransport : IMoveableObj
{
    // Поле-объект класса Drawning(Transport) или его наследника
    private readonly DrawningBase? _car = null;

    public MoveableTransport(DrawningBase car)
    {
        _car = car;
    }

    public ObjParameters? GetObjectPosition
    {
        get
        {
            if (_car == null || _car.EntityTransport == null ||
            !_car.GetPosX.HasValue || !_car.GetPosY.HasValue)
            {
                return null;
            }
            return new ObjParameters(_car.GetPosX.Value,
            _car.GetPosY.Value, _car.GetWidth, _car.GetHeight);
        }
    }

    public int GetStep => (int)(_car?.EntityTransport?.Step ?? 0);

    public bool TryMoveObject(MovementDirection direction)
    {
        if (_car == null || _car.EntityTransport == null)
        {
            return false;
        }
        return _car.MoveTransport(GetDirectionType(direction));
    }

    /// Конвертация из MovementDirection в DirectionType
    /// <param name="direction">MovementDirection</param>
    /// <returns>DirectionType</returns>
    private static DirectionType GetDirectionType(MovementDirection direction)
    {
        return direction switch
        {
            MovementDirection.Left => DirectionType.Left,
            MovementDirection.Right => DirectionType.Right,
            MovementDirection.Up => DirectionType.Up,
            MovementDirection.Down => DirectionType.Down,
            _ => DirectionType.Unknown,
        };
    }
}