using ProjectBulldozer.Entities;
using ProjectBulldozer.MovementStrategy;

namespace ProjectBulldozer.Drawning
{
    public class DrawingTractor
    {
        public EntityTractor? EntityTractor { get; protected set; }
        protected int _pictureWidth;
        protected int _pictureHeight;
        protected int _startPosX;
        protected int _startPosY;
        protected readonly int _tractWidth = 120;
        protected readonly int _tractHeight = 110;
        public int GetPosX => _startPosX;
        public int GetPosY => _startPosY;
        public int GetWidth => _tractWidth;
        public int GetHeight => _tractHeight;
        public IMoveableObject GetMoveableObject => new DrawingObjectTractor(this);
        public DrawingTractor(int speed, double weight, Color bodyColor, int width, int heigth)
        {
            if (width < _tractWidth || heigth < _tractHeight)
            {
                return;
            }
            _pictureWidth = width;
            _pictureHeight = heigth;
            EntityTractor = new EntityTractor(speed, weight, bodyColor);
        }
        protected DrawingTractor(int speed, double weight, Color bodyColor, int width,
            int height, int tractWidth, int tractHeight)
        {
            if (width < _tractWidth || height < _tractHeight)
            {
                return;
            }
            _pictureWidth = width;
            _pictureHeight = height;
            _tractWidth = tractWidth;
            _tractHeight = tractHeight;
            EntityTractor = new EntityTractor(speed, weight, bodyColor);
        }
        //Установка позиции
        public void SetPosition(int x, int y)
        {
            if (x < 0 || x + _tractWidth > _pictureWidth)
            {
                x = _pictureWidth - _tractWidth;
            }
            if (y < 0 || y + _tractHeight > _pictureHeight)
            {
                y = _pictureHeight - _tractHeight;
            }
            _startPosX = x;
            _startPosY = y;
        }

        public void MoveTransport(DirectionType direction)
        {
            if (EntityTractor == null)
            {
                return;
            }
            switch (direction)
            {
                case DirectionType.Left:
                    if (_startPosX - EntityTractor.Step > 0)
                    {
                        _startPosX -= (int)EntityTractor.Step;
                    }
                    break;
                case DirectionType.Up:
                    if (_startPosY - EntityTractor.Step > 0)
                    {
                        _startPosY -= (int)EntityTractor.Step;
                    }
                    break;
                case DirectionType.Right:
                    if (_startPosX + EntityTractor.Step + _tractWidth < _pictureWidth)
                    {
                        _startPosX += (int)EntityTractor.Step;
                    }
                    break;
                case DirectionType.Down:
                    if (_startPosY + EntityTractor.Step + _tractHeight < _pictureHeight)
                    {
                        _startPosY += (int)EntityTractor.Step;
                    }
                    break;
            }
        }

        public virtual void DrawTransport(Graphics g)
        {
            {
                if (EntityTractor == null) return;
            }
            Pen pen = new(Color.Black);
            Brush brownBrush = new SolidBrush(Color.Brown);
            Brush windows = new SolidBrush(Color.LightYellow);
            Brush bodyColor = new SolidBrush(EntityTractor.BodyColor);
            Brush grayBrush = new SolidBrush(Color.Gray);
            //основное тело
            g.FillRectangle(bodyColor, _startPosX + 18, _startPosY + 42, 99, 56);
            g.DrawRectangle(pen, _startPosX + 18, _startPosY + 42, 99, 56);
            //кабина водителя
            g.FillRectangle(windows, _startPosX + 18, _startPosY + 4 , 37, 37);
            g.DrawRectangle(pen, _startPosX + 18, _startPosY +4 , 37, 37);
            //колеса
            g.FillEllipse(grayBrush, _startPosX + 19, _startPosY + 76, 45, 45);
            g.DrawEllipse(pen, _startPosX + 19, _startPosY + 76, 45, 45);
            g.FillEllipse(grayBrush, _startPosX + 80, _startPosY + 87, 33, 33);
            g.DrawEllipse(pen, _startPosX + 80, _startPosY + 87, 33, 33);
            //выхлопная труба
            g.FillRectangle(brownBrush, _startPosX + 88, _startPosY+ 6, 14, 35);
            g.DrawRectangle(pen, _startPosX + 88, _startPosY + 6, 14, 35);
        }
        public bool CanMove(DirectionType direction)
        {
            if (EntityTractor == null)
            {
                return false;
            }
            return direction switch
            {
                //влево
                DirectionType.Left => _startPosX - EntityTractor.Step > 0,
                //вверх
                DirectionType.Up => _startPosY - EntityTractor.Step > 0,
                // вправо
                DirectionType.Right => _startPosX + EntityTractor.Step < _pictureWidth,
                //вниз
                DirectionType.Down => _startPosY + EntityTractor.Step < _pictureHeight,
            };
        }
    }
}