namespace ProjectAirplaneWithRadar
{
    /// <summary>
    /// Класс, отвечающий за прорисовку и перемещение объекта-сущности
    /// </summary>
    public class DrawingAirplaneWithRadar
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityAirplaneWithRadar? EntityAirplaneWithRadar { get; private set; }

        /// <summary>
        /// Ширина окна
        /// </summary>
        private int? _pictureWidth;

        /// <summary>
        /// Высота окна
        /// </summary>
        private int? _pictureHeight;

        /// <summary>
        /// Левая координата прорисовки 
        /// </summary>
        private int? _startPosX;

        /// <summary>
        /// Верхняя кооридната прорисовки 
        /// </summary>
        private int? _startPosY;

        /// <summary>
        /// Ширина прорисовки самолета
        /// </summary>
        public readonly int PlaneWidth = 150;

        /// <summary>
        /// Высота прорисовки самолета
        /// </summary>
        public readonly int PlaneHeight = 95;
        

        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес</param>
        /// <param name="bodyColor">Основной цвет</param>
        /// <param name="additionalColor">Дополнительный цвет</param>
        /// <param name="wheels">Шасси</param>
        /// <param name="radar">Радар</param>
        public void Init(int speed, double weight, Color bodyColor, Color additionalColor, bool wheels, bool radar)
        {
            EntityAirplaneWithRadar = new EntityAirplaneWithRadar();
            EntityAirplaneWithRadar.Init(speed, weight, bodyColor, additionalColor, wheels, radar);
            _pictureWidth = null;
            _pictureHeight = null;
            _startPosX = null;
            _startPosY = null;
        }

        /// <summary>
        /// Установка границ поля
        /// </summary>
        /// <param name="width">Ширина поля</param>
        /// <param name="height">Высота поля</param>
        /// <returns>true - границы заданы, false - проверка не пройдена, нельзя разместить объект в этих размерах</returns>
        public bool SetPictureSize(int width, int height)
        {
            if (PlaneWidth < width && PlaneHeight < height)
            {
                _pictureWidth = width;
                _pictureHeight = height;
                if(_startPosX != null && _startPosY != null) 
                {
                    if(_startPosX.Value < 0)
                    {
                        _startPosX = 0;
                    }
                    if(_startPosY.Value < 0)
                    {
                        _startPosY = 0;
                    }

                    if(_startPosX.Value + PlaneWidth > _pictureWidth)
                    {
                        _startPosX = _pictureWidth - PlaneWidth;
                    }
                    if (_startPosY.Value + PlaneHeight > _pictureHeight)
                    {
                        _startPosY = _pictureHeight - PlaneHeight;
                    }
                }
            }

            return false;
        }

        /// <summary>
        /// Установка позиции
        /// </summary>
        /// <param name="x">Координата X</param>
        /// <param name="y">Координата Y</param>
        public void SetPosition(int x, int y)
        {
            if (!_pictureHeight.HasValue || !_pictureWidth.HasValue)
            {
                return;
            }

            _startPosX = x;
            _startPosY = y;

            if (_startPosX.Value < 0)
            {
                _startPosX = 0;
            }
            if(_startPosY.Value < 0)
            {
                _startPosY = 0;
            }

            if (_startPosX.Value + PlaneWidth > _pictureWidth)
            {
                _startPosX = _pictureWidth - PlaneWidth;
            }
            if (_startPosY.Value + PlaneHeight > _pictureHeight)
            {
                _startPosY = _pictureHeight - PlaneHeight;
            }
        }

        /// <summary>
        /// Изменение направления перемещения
        /// </summary>
        /// <param name="direction">Направление</param>
        /// <returns>true - перемещене выполнено, false - перемещение невозможно</returns>
        public bool MoveTransport(DirectionType direction)
        {
            if (EntityAirplaneWithRadar == null || !_startPosX.HasValue || !_startPosY.HasValue)
            {
                return false;
            }

            int step = (int)EntityAirplaneWithRadar.Step;
            switch (direction)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX.Value - step > 0)
                    {
                        _startPosX -= step;
                    }
                    break;
                //вверх
                case DirectionType.Up:
                    if (_startPosY.Value - step > 0)
                    {
                        _startPosY -= step;
                    }
                    break;
                // вправо
                case DirectionType.Right:
                    if (_startPosX.Value + step < _pictureWidth - PlaneWidth)                    
                    {
                        _startPosX += step;
                    }
                    break;
                //вниз
                case DirectionType.Down:
                    if (_startPosY.Value + step < _pictureHeight - PlaneHeight)
                    {
                        _startPosY += step;
                    }
                    break;
                default:
                    return false;
            }
            return true;
        }

        /// <summary>
        /// Прорисовка объекта
        /// </summary>
        /// <param name="g"></param>
        public void DrawTransport(Graphics g)
        {
            if (EntityAirplaneWithRadar == null || !_startPosX.HasValue || !_startPosY.HasValue)
            {
                return;
            }


            Pen pen = new(Color.Black);
            Brush additionalBrush = new SolidBrush(EntityAirplaneWithRadar.AdditionalColor);

            //Шасси
            if (EntityAirplaneWithRadar.Wheels)
            {
                //Задняя стойка
                g.DrawRectangle(pen, _startPosX.Value + 30, _startPosY.Value + 80, 5, 10);
                g.FillRectangle(additionalBrush, _startPosX.Value + 30, _startPosY.Value + 80, 5, 10);

                g.DrawEllipse(pen, _startPosX.Value + 20, _startPosY.Value + 85, 10, 10);
                g.FillEllipse(additionalBrush, _startPosX.Value + 20, _startPosY.Value + 85, 10, 10);

                g.DrawEllipse(pen, _startPosX.Value + 35, _startPosY.Value + 85, 10, 10);
                g.FillEllipse(additionalBrush, _startPosX.Value + 35, _startPosY.Value + 85, 10, 10);

                //Передняя стойка
                g.DrawRectangle(pen, _startPosX.Value + 95, _startPosY.Value + 80, 5, 10);
                g.FillRectangle(additionalBrush, _startPosX.Value + 95, _startPosY.Value + 80, 5, 10);

                g.DrawEllipse(pen, _startPosX.Value + 92, _startPosY.Value + 85, 10, 10);
                g.FillEllipse(additionalBrush, _startPosX.Value + 92, _startPosY.Value + 85, 10, 10);
            }

            //Радар
            if (EntityAirplaneWithRadar.Radar)
            {
                g.DrawRectangle(pen, _startPosX.Value + 70, _startPosY.Value + 40, 10, 10);
                g.FillRectangle(additionalBrush, _startPosX.Value + 70, _startPosY.Value + 40, 10, 10);

                g.DrawEllipse(pen, _startPosX.Value + 50, _startPosY.Value + 30, 50, 10);
                g.FillEllipse(additionalBrush, _startPosX.Value + 50, _startPosY.Value + 30, 50, 10);
            }

            //Корпус
            g.DrawRectangle(pen, _startPosX.Value + 10, _startPosY.Value + 50,100,30);
            
            //Хвост
            Point[] points = {
                new Point(_startPosX.Value + 10, _startPosY.Value +  10),
                new Point(_startPosX.Value + 10, _startPosY.Value +  50),
                new Point(_startPosX.Value + 50, _startPosY.Value +  50)
            };
            g.DrawPolygon(pen, points);

            //Кабина
            Point[] points2 = {
                new Point(_startPosX.Value + 110, _startPosY.Value +  45),
                new Point(_startPosX.Value + 110, _startPosY.Value +  65),
                new Point(_startPosX.Value + 150, _startPosY.Value +  65)
            };
            g.DrawPolygon(pen, points2);
            Point[] points3 = {
                new Point(_startPosX.Value + 110, _startPosY.Value +  65),
                new Point(_startPosX.Value + 110, _startPosY.Value +  85),
                new Point(_startPosX.Value + 150, _startPosY.Value +  65)
            };
            g.DrawPolygon(pen, points3);

            //Крыло
            Brush brBlack = new SolidBrush(Color.Black);
            g.DrawEllipse(pen, _startPosX.Value + 30, _startPosY.Value + 60, 70, 10);
            g.FillEllipse(brBlack, _startPosX.Value + 30, _startPosY.Value + 60, 70, 10);

            //Хвостовой элерон         
            g.DrawEllipse(pen, _startPosX.Value, _startPosY.Value + 45, 30, 10);
            g.FillEllipse(brBlack, _startPosX.Value, _startPosY.Value + 45, 30, 10);
                        
        }
    }
}