import java.awt.*;
import java.awt.image.BufferedImage;

public class MapWithSetBoatsGeneric <T extends IDrawningObject, U extends AbstractMap>
{
    private int _pictureWidth;
    private int _pictureHeight;
    private int _placeSizeWidth = 210;
    private int _placeSizeHeight = 90;
    private SetBoatsGeneric<T> _setBoats;
    private U _map;

    public MapWithSetBoatsGeneric(int picWidth, int picHeight, U map)
    {
        int width = picWidth / _placeSizeWidth;
        int height = picHeight / _placeSizeHeight;
        _setBoats = new SetBoatsGeneric<T>(width * height);
        _pictureWidth = picWidth;
        _pictureHeight = picHeight;
        _map = map;
    }

    public int addBoat(T boat)
    {
        return _setBoats.Insert(boat);
    }

    public T removeBoat(int position)
    {
        return _setBoats.Remove(position);
    }

    public BufferedImage ShowSet()
    {
        BufferedImage img = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_ARGB);
        Graphics2D gr = (Graphics2D) img.getGraphics();
        DrawBackground(gr);
        DrawBoats(gr);
        return img;
    }

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

        Shaking();
        for (int i = 0; i < _setBoats.Count(); i++)
        {
            var ship = _setBoats.Get(i);
            if (ship != null)
            {
                return _map.CreateMap(_pictureWidth, _pictureHeight, ship);
            }
        }
        return bmp;
    }

    public BufferedImage MoveObject(Direction direction)
    {
        BufferedImage img = new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_ARGB);
        if (_map != null)
        {
            _map.MoveObject(direction);
        }
        return img;
    }

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

    private void DrawBackground(Graphics g)
    {
        Graphics2D g2d = (Graphics2D) g;
        g2d.setColor(Color.BLACK);

        for (int i = 0; i < _pictureWidth / _placeSizeWidth; i++)
        {
            for (int j = 0; j < _pictureHeight / _placeSizeHeight + 1; ++j)
            {//линия рамзетки места
                g.drawLine(i * _placeSizeWidth, j * _placeSizeHeight, i *
                        _placeSizeWidth + _placeSizeWidth / 2, j * _placeSizeHeight);
                for (int k = 0; k < 7; k++)
                {
                    g.drawOval( i * _placeSizeWidth + 15 * k, j * _placeSizeHeight, 15, 15);
                    g.drawOval( i * _placeSizeWidth + 15 * k, j * _placeSizeHeight - 15, 15, 15);
                }
            }
            g.drawLine(i * _placeSizeWidth, 0, i * _placeSizeWidth, (_pictureHeight / _placeSizeHeight) * _placeSizeHeight);
            for (int k = 0; k < 6 * 4; k++)
            {
                g.drawOval( i * _placeSizeWidth, 0 + 15 * k, 15, 15);
            }
        }
    }
    private void DrawBoats(Graphics g)
    {
        int numberOfSeatsInWidth = _pictureWidth / _placeSizeWidth;
        int numberOfSeatsInHeight = _pictureHeight / _placeSizeHeight;
        int bottomLine = (numberOfSeatsInHeight - 1) * _placeSizeHeight;

        for (int i = 0; i < _setBoats.Count(); i++)
        {
            if(_setBoats.Get(i) != null)
            {
                _setBoats.Get(i).SetObject(i % numberOfSeatsInWidth * _placeSizeWidth, bottomLine - i / numberOfSeatsInWidth * _placeSizeHeight, _pictureWidth, _pictureHeight);
                _setBoats.Get(i).DrawningObject(g);
            }
        }
    }
}