import java.util.UUID;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.entity.Player;

public class ImageBoard {

    private final CanvasModule module;

    private final int width;
    private final int height;
    private final Location location;
    private final ImageDirection direction;

    private final UUID playerId;

    private final ImageFrame[][] frames;

    private BaseImage image;

    public ImageBoard(CanvasModule module, int width, int height, Location location, ImageDirection direction, UUID playerId) {
        this.module = module;
        this.width = width;
        this.height = height;
        this.location = location;
        this.playerId = playerId;
        this.direction = direction;

        frames = new ImageFrame[width][height];

        for(int x = 0; x < width; x++) {
            for(int y = 0; y < height; y++) {
                ImageFrame frame = frames[x][y] = new ImageFrame(this, new Point(x, y));

                frame.setImageSupplier(() -> {
                    if(image == null) {
                        return null;
                    }

                    int startPixelX = frame.getPosition().getX() * 128;
                    int startPixelY = frame.getPosition().getY() * 128;

                    int endPixelX = Math.min(startPixelX + 128, image.getWidth());
                    int endPixelY = Math.min(startPixelY + 128, image.getHeight());

                    return image.getFinalImage().getSubimage(startPixelX, startPixelY, endPixelX, endPixelY);
                });
            }
        }
    }

    public Player getPlayer() {
        return Bukkit.getPlayer(playerId);
    }

    public void draw() {
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                frames[x][y].draw();
            }
        }
    }

    public void setImage(BaseImage image) {
        this.image = image;
        draw();
    }

    public Location getFrameLocation(ImageFrame frame) {
        return direction.getFrameLocation(this, frame.getPosition());
    }

    public Location getCornerLocation() {
        return location;
    }

    public ImageDirection getDirection() {
        return direction;
    }
}