using ProjectAirplaneWithRadar.Drawnings;

namespace ProjectAirplaneWithRadar.MovementStrategy
{
    /// <summary>
    /// Класс-реализация IMoveableObject с использованием DrawningAirplane
    /// </summary>
    public class MoveablePlane : IMoveableObject
    {
        /// <summary>
        /// Поле-объект класса DrawningAirplane или его наследника
        /// </summary>
        private readonly DrawningAirplane? _airplane = null;

        /// <summary>
        /// Конструктор
        /// </summary>
        /// <param name="airplane">Объект класса DrawningAirplane</param>
        public MoveablePlane(DrawningAirplane airplane)
        {
            _airplane = airplane;
        }

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

        public int GetStep => (int)(_airplane?.EntityAirplane?.Step ?? 0);

        public bool TryMoveObject(MovementDirection direction)
        {
            if (_airplane == null || _airplane.EntityAirplane == null)
            {
                return false;
            }

            return _airplane.MoveTransport(GetDirectionType(direction));
        }

        /// <summary>
        /// Конвертация из MovementDirection в DirectionType
        /// </summary>
        /// <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.Unknow
            };
        }
    }
}