using AntiAircraftGun.Entities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AntiAircraftGun.Drawnings;

public class DrawningAircraftGun
{
    /// <summary>
    /// Класс-сущность
    /// </summary>
    public EntityAircraftGun? EntityAircraftGun { get; protected set; }

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

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

    /// <summary>
    /// Левая координата прорисовки зенитной установки
    /// </summary>
    protected int? _startPosX;

    /// <summary>
    /// Верхняя координата прорисовки зенитной установки
    /// </summary>
    protected int? _startPosY;

    /// <summary>
    /// Ширина прорисовки зенитной установки
    /// </summary>
    private readonly int _drawningGunWidth = 129;

    /// <summary>
    /// Высота прорисовки зенитной установки
    /// </summary>
    private readonly int _drawningGunHeight = 105;

    /// <summary>
    /// Координата Х объекта
    /// </summary>
    public int? GetPosX => _startPosX;

    /// <summary>
    /// Координата Y объекта
    /// </summary>
    public int? GetPosY => _startPosY;

    /// <summary>
    /// Ширина объекта
    /// </summary>
    public int GetWidth => _drawningGunWidth;

    /// <summary>
    /// Высота объекта
    /// </summary>
    public int GetHeight => _drawningGunHeight;

    /// <summary>
    /// Пустой конструктор
    /// </summary>
    private DrawningAircraftGun()
    {
        _pictureWidth = null;
        _pictureHeight = null;
        _startPosX = null;
        _startPosY = null;
    }

    /// <summary>
    /// Конструктор 
    /// </summary>
    /// <param name="speed">Скорость</param>
    /// <param name="weight">Вес</param>
    /// <param name="bodyColor">Основной цвет</param>
    public DrawningAircraftGun(int speed, double weight, Color bodyColor) : this()
    {
        EntityAircraftGun = new EntityAircraftGun(speed, weight, bodyColor);
    }

    /// <summary>
    /// Конструктор для наследников
    /// </summary>
    /// <param name="drawningGunWidth">Ширина прорисовки зенитной установки</param>
    /// <param name="drawningGunHeight">Высота прорисовки зенитной установки</param>
    protected DrawningAircraftGun(int drawningGunWidth, int drawningGunHeight) : this()
    {
        _drawningGunWidth = drawningGunWidth;
        _drawningGunHeight = drawningGunHeight;
    }
    /// <summary>
    /// Установка границ поля
    /// </summary>
    /// <param name="width"></param>
    /// <param name="height"></param>
    /// <returns></returns>
    public bool SetPictureSize(int width, int height)
    {
        
        if (width < _drawningGunWidth || height < _drawningGunHeight) { return false; };
        _pictureWidth = width;
        _pictureHeight = height;
        if (_startPosX != null || _startPosY != null)
        {
            if (_startPosX + _drawningGunWidth > _pictureWidth)
            {
                _startPosX = -_drawningGunWidth + _pictureWidth;
            }
            else if (_startPosX < 0)
            {
                _startPosX = 0;
            }
            if (_startPosY + _drawningGunHeight > _pictureHeight)
            {
                _startPosY = -_drawningGunHeight + _pictureHeight;
            }
            else if (_startPosY < 0)
            {
                _startPosY = 0;
            }
        }
        return true;
    }
    /// <summary>
    /// Установка позиций
    /// </summary>
    /// <param name="x"></param>
    /// <param name="y"></param>
    public void SetPosition(int x, int y)
    {

        
        if (!_pictureHeight.HasValue || !_pictureWidth.HasValue)
        {
            return;
        }

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

        if (y + _drawningGunHeight > _pictureHeight)
        {
            _startPosY = _pictureHeight - _drawningGunHeight;
        }
        else if (y < 0)
        {
            _startPosY = 0;
        }
        else
        {
            _startPosY = y;
        }
    }
    /// <summary>
    /// Изменение направления перемещения
    /// </summary>
    /// <param name="direction">Направление</param>
    /// <returns></returns>
    public bool MoveTransport(DirectionType direction)
    {
        if (EntityAircraftGun == null || !_startPosX.HasValue || !_startPosY.HasValue)
        {
            return false;
        }
        switch (direction)
        {
            case DirectionType.Left:
                if (_startPosX.Value - EntityAircraftGun.Step > 0)
                {
                    _startPosX -= (int)EntityAircraftGun.Step;
                }
                return true;
            case DirectionType.Right:
                if (_startPosX.Value + _drawningGunWidth + EntityAircraftGun.Step < _pictureWidth)
                {
                    _startPosX += (int)EntityAircraftGun.Step;
                }
                return true;
            case DirectionType.Down:
                if (_startPosY.Value + _drawningGunHeight + EntityAircraftGun.Step < _pictureHeight)
                {
                    _startPosY += (int)EntityAircraftGun.Step;
                }
                return true;
            case DirectionType.Up: //вверх
                if (_startPosY - EntityAircraftGun.Step > 0)
                {
                    _startPosY -= (int)EntityAircraftGun.Step;
                }
                return true;
            default:
                return false;
        }
    }
    /// <summary>
    /// Прорисовка объекта
    /// </summary>
    /// <param name="g"></param>
    public virtual void DrawTransport(Graphics g)
    {
        if (EntityAircraftGun == null || !_startPosX.HasValue || !_startPosY.HasValue)
        {
            return;
        }

        Pen pen = new(Color.Black);

        g.DrawEllipse(pen, _startPosX.Value + 10, _startPosY.Value + 75, 30, 30);
        g.DrawEllipse(pen, _startPosX.Value + 100, _startPosY.Value + 75, 30, 30);
        g.DrawRectangle(pen, _startPosX.Value + 25, _startPosY.Value + 75, 90, 30);

        //границы ЦВЕТ
        Brush brDarkSlateGray = new SolidBrush(EntityAircraftGun.BodyColor);
        g.FillRectangle(brDarkSlateGray, _startPosX.Value + 35, _startPosY.Value + 40, 35, 30);
        g.FillEllipse(brDarkSlateGray, _startPosX.Value + 10, _startPosY.Value + 75, 30, 30);
        g.FillEllipse(brDarkSlateGray, _startPosX.Value + 100, _startPosY.Value + 75, 30, 30);
        g.FillRectangle(brDarkSlateGray, _startPosX.Value + 25, _startPosY.Value + 75, 90, 30);

        // границы арт. установки
        g.DrawRectangle(pen, _startPosX.Value + 35, _startPosY.Value + 40, 35, 30);
        g.DrawRectangle(pen, _startPosX.Value + 10, _startPosY.Value + 65, 120, 13);

        //нижние катки ЦВЕТ
        Brush brDimGray = new SolidBrush(Color.SlateGray);
        g.FillEllipse(brDimGray, _startPosX.Value + 40, _startPosY.Value + 90, 15, 15);
        g.FillEllipse(brDimGray, _startPosX.Value + 55, _startPosY.Value + 90, 15, 15);
        g.FillEllipse(brDimGray, _startPosX.Value + 70, _startPosY.Value + 90, 15, 15);
        g.FillEllipse(brDimGray, _startPosX.Value + 85, _startPosY.Value + 90, 15, 15);

        //нижние катки ОТРИСОВКА
        g.DrawEllipse(pen, _startPosX.Value + 40, _startPosY.Value + 90, 15, 15);
        g.DrawEllipse(pen, _startPosX.Value + 55, _startPosY.Value + 90, 15, 15);
        g.DrawEllipse(pen, _startPosX.Value + 70, _startPosY.Value + 90, 15, 15);
        g.DrawEllipse(pen, _startPosX.Value + 85, _startPosY.Value + 90, 15, 15);

        //Большие катки ЦВЕТ
        Brush brSlateGray = new SolidBrush(Color.SlateGray);
        g.FillEllipse(brSlateGray, _startPosX.Value + 13, _startPosY.Value + 78, 24, 24);
        g.FillEllipse(brSlateGray, _startPosX.Value + 103, _startPosY.Value + 78, 24, 24);

        //Большие катки ОТРИСОВКА
        g.DrawEllipse(pen, _startPosX.Value + 13, _startPosY.Value + 78, 24, 24);
        g.DrawEllipse(pen, _startPosX.Value + 103, _startPosY.Value + 78, 24, 24);

        g.FillRectangle(brDarkSlateGray, _startPosX.Value + 10, _startPosY.Value + 65, 120, 13);
        

        


    }
}