using System.Reflection.Metadata.Ecma335;

namespace ProjectCar;
/// <summary>
/// 
/// </summary>
public class DrawningGasMachine
{
    /// <summary>
    /// Класс-сущность
    /// </summary>
    public EntityMachine? EntityMachine {  get; private set; }
    /// <summary>
    /// Ширина окна
    /// </summary>
    private int? _pictureWidth;
    /// <summary>
    /// Высота окна
    /// </summary>
    private int? _pictureHeight;

    /// <summary>
    /// Левая координата прорисовки газ автомобиля
    /// </summary>
    private int? _startPosX;
    /// <summary>
    /// Верхняя координата прорисовки газ автомобиля
    /// </summary>
    private int? _startPosY;
    /// <summary>
    /// Ширина прорисовки газ автомобиля
    /// </summary>
    private readonly int _drawningMachineWidth = 150;
    /// <summary>
    /// Высота прорисовки газ автомобиля
    /// </summary>
    private readonly int _drawningMachineHeight = 70;

    public void Init(int speed, double weight, Color bodyColor, Color additionalColor, bool gas, bool wheels1, bool wheels2, bool wheels3, bool beacon)
    {
        EntityMachine = new EntityMachine();
        EntityMachine.Init(speed, weight, bodyColor, additionalColor, gas, wheels1, wheels2, wheels3, beacon);
        _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 границах</returns>
    public bool SetPictureSize(int width, int height)
    {
        if (EntityMachine == null)
        {
            return false;
        }

        if (width >= _drawningMachineWidth && height >= _drawningMachineHeight)
        {
            _pictureWidth = width;
            _pictureHeight = height;

            if (_startPosX.HasValue && _startPosY.HasValue)
            {
                if (_startPosX + _drawningMachineWidth > _pictureWidth)
                {
                    _startPosX = _pictureWidth - _drawningMachineWidth;
                }
                if (_startPosY + _drawningMachineHeight > _pictureHeight)
                {
                    _startPosY = _pictureHeight - _drawningMachineHeight;
                }
            }
            return true;
        }
        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;
        }

        if (x < 0)
        {
            _startPosX = 0;
        }
        else if (x + _drawningMachineWidth > _pictureWidth) 
        {
            _startPosX = _pictureWidth.Value - _drawningMachineWidth;
        }

        if (y < 0)
        {
            _startPosY = 0;
        }
        else if (y + _drawningMachineHeight > _pictureHeight)
        {
            _startPosY = _pictureHeight.Value - _drawningMachineHeight;
        }
        _startPosX = x;
        _startPosY = y;
    }
    public bool MoveTransport(DirectionType direction) 
    {
        if (EntityMachine == null || !_startPosX.HasValue || !_startPosY.HasValue) 
        {
            return false;
        }
        switch (direction) 
        {
            case DirectionType.Left:
                if (_startPosX.Value - EntityMachine.Step > 0) 
                {
                    _startPosX -= (int)EntityMachine.Step;
                }
                return true;
            case DirectionType.Up:
                if (_startPosY.Value - EntityMachine.Step > 0)
                {
                    _startPosY -= (int)EntityMachine.Step;
                }
                return true;
            case DirectionType.Right:
                if (_startPosX.Value + EntityMachine.Step < _pictureWidth - _drawningMachineWidth)
                {
                    _startPosX += (int)EntityMachine.Step;
                }
                return true;
            case DirectionType.Down:
                if (_startPosY.Value + EntityMachine.Step < _pictureHeight - _drawningMachineHeight)
                {
                    _startPosY += (int)EntityMachine.Step;
                }
                return true;
            default:
                return false;
        }
    }
    /// <summary>
    /// Прорисовка объекта
    /// </summary>
    /// <param name="g"></param>
    public void DrawTransport(Graphics g) 
    {
        if (EntityMachine == null || !_startPosX.HasValue || !_startPosY.HasValue)
        {
            return; 
        }

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

        //бак с газом
        if (EntityMachine.Gas) 
        {
            g.DrawEllipse(pen, _startPosX.Value + 35, _startPosY.Value + 10, 80, 30);

            g.FillEllipse(additionalBrush, _startPosX.Value + 35, _startPosY.Value + 10, 80, 30);
        }
        //границы автомобиля
        g.DrawRectangle(pen, _startPosX.Value + 40, _startPosY.Value + 40, 110, 10);
        g.DrawRectangle(pen, _startPosX.Value + 116, _startPosY.Value + 10, 30, 30);



        //кузов
        Brush br = new SolidBrush(EntityMachine.BodyColor);
        g.FillRectangle(br, _startPosX.Value + 40, _startPosY.Value + 40, 110, 10);


        //кабина
        g.FillRectangle(br, _startPosX.Value + 116, _startPosY.Value + 10, 30, 30);


        //маяк сигнальный
        if (EntityMachine.Beacon) 
        {
            g.DrawRectangle(pen, _startPosX.Value + 130, _startPosY.Value, 10, 10);
            g.FillRectangle(additionalBrush, _startPosX.Value + 130, _startPosY.Value, 10, 10);
        }


        //колеса(2)
        //if (EntityMachine.Wheels1) 
        //{
        //    g.DrawEllipse(pen, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
        //    g.DrawEllipse(pen, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
        //}


        //колеса(3)
        if (EntityMachine.Wheels2)
        {
            g.DrawEllipse(pen, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
            g.FillEllipse(additionalBrush, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
            g.DrawEllipse(pen, _startPosX.Value + 75, _startPosY.Value + 50, 20, 20);
            g.FillEllipse(additionalBrush, _startPosX.Value + 75, _startPosY.Value + 50, 20, 20);
            g.DrawEllipse(pen, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
            g.FillEllipse(additionalBrush, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
        }

        //колеса(4)
        //if (EntityMachine.Wheels3)
        //{
        //    g.DrawEllipse(pen, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 50, _startPosY.Value + 50, 20, 20);
        //    g.DrawEllipse(pen, _startPosX.Value + 75, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 75, _startPosY.Value + 50, 20, 20);
        //    g.DrawEllipse(pen, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 125, _startPosY.Value + 50, 20, 20);
        //    g.DrawEllipse(pen, _startPosX.Value + 100, _startPosY.Value + 50, 20, 20);
        //    g.FillEllipse(additionalBrush, _startPosX.Value + 100, _startPosY.Value + 50, 20, 20);
        //}

    }
}