import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.LinkedList;
import java.util.Queue;

public class MapWithSetShipGeneric<T extends IDrawningObject, U extends AbstractMap> {
    private int _pictureWidth;
    private int _pictureHeight;
    private int _placeSizeWidth = 210;
    private int _placeSizeHeight = 100;
    private SetShipGeneric<T> _setShips;
    private U _map;
    private Queue<T> _deletedShips;

    public MapWithSetShipGeneric(int picWidth, int picHeight, U map)
    {
        _deletedShips = new LinkedList<>();
        int width = picWidth / _placeSizeWidth;
        int height = picHeight / _placeSizeHeight;
        _setShips = new SetShipGeneric<T>(width * height);
        _pictureWidth = picWidth;
        _pictureHeight = picHeight;
        _map = map;
    }

    public int Add(T ship)
    {
        return _setShips.Insert(ship);
    }
    public T Delete(int position)
    {
        T temp = _setShips.Remove(position);
        _deletedShips.add(temp);
        return temp;
    }

    public BufferedImage ShowSet()
    {
        BufferedImage bmp = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_RGB);
        Graphics g = bmp.getGraphics();
        DrawBackground((Graphics2D) g);
        DrawShips(g);
        return bmp;
    }

    public BufferedImage ShowOnMap()
    {
        //BufferedImage bmp = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_RGB);

        Shaking();
        for (var ship : _setShips)
        {
            return _map.CreateMap(_pictureWidth,_pictureHeight,ship);
        }
        return new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_RGB);
    }

    public T GetSelectedShip(int ind){
        return _setShips.Get(ind);
    }

    public T GetShipsDeleted()
    {
        if(_deletedShips.isEmpty())
        {
            return null;
        }
        return _deletedShips.remove();
    }

    public BufferedImage MoveObject(Direction direction)
    {
        BufferedImage bmp = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_RGB);

        if (_map != null)
        {
            return _map.MoveObject(direction);
        }
        return bmp;
    }

    private void Shaking()
    {
        int j = _setShips.getCount() - 1;
        for (int i = 0; i < _setShips.getCount(); ++i)
        {
            if (_setShips.Get(i) == null)
            {
                for (; j > i; --j)
                {
                    var car = _setShips.Get(j);
                    if (car != null)
                    {
                        _setShips.Insert(car, i);
                        _setShips.Remove(j);
                        break;
                    }
                }
                if (j <= i)
                {
                    return;
                }
            }
        }
    }

    private void DrawBackground(Graphics2D g2d)
    {
        g2d.setColor(Color.WHITE);
        g2d.fillRect(0, 0, _pictureWidth, _pictureHeight);
        g2d.setColor(new Color(150, 75, 0));
        for (int i = 0; i < _pictureWidth / _placeSizeWidth; ++i)
        {
            for (int j = 1; j < _pictureHeight / _placeSizeHeight + 1; ++j) //линия рамзетки места
            {
                g2d.drawLine(i * _placeSizeWidth, j * _placeSizeHeight, i * _placeSizeWidth + _placeSizeWidth / 2, j * _placeSizeHeight);
                for (int k = 0; k < _placeSizeWidth / (30 * 2); ++k)
                    g2d.drawLine(i * _placeSizeWidth + (k + 1) * 30, j * _placeSizeHeight, i * _placeSizeWidth + (k + 1) * 30, j * _placeSizeHeight + 30);
            }
            g2d.drawLine(i * _placeSizeWidth, 0, i * _placeSizeWidth, (_pictureHeight / _placeSizeHeight) * _placeSizeHeight);
        }
    }

    private void DrawShips(Graphics g)
    {
        int i = 0;
        for (var ship: _setShips)
        {
            int temp = 0;
            if (ship.GetCurrentPosition()[3] - ship.GetCurrentPosition()[2] < 75) temp = (int)(ship.GetCurrentPosition()[3] - ship.GetCurrentPosition()[2]);
            ship.SetObject((_pictureWidth / _placeSizeWidth - (i % (_pictureWidth / _placeSizeWidth)) - 1) * _placeSizeWidth, (i / (_pictureWidth / _placeSizeWidth)) * _placeSizeHeight + temp, _pictureWidth, _pictureHeight);
            ship.DrawningObject(g);
            ++i;
        }
    }
}