package gui;
import javax.swing.*;
import java.awt.*;
import simulation.Elevator;
import commandSystem.Direction;


@SuppressWarnings("serial")
class ElevatorCanvas extends JPanel {
	private final static int WIDTH = 40;
	private final static int HEIGHT = 50;
	private final static Dimension DIMENSIONS = new Dimension(WIDTH, 300);

	private Elevator elevator;

	public ElevatorCanvas(Elevator elevator) {
		this.elevator = elevator;
	}

    @Override
    public Dimension getMinimumSize() {
		return DIMENSIONS;
    }
    @Override
    public Dimension getPreferredSize() {
		return DIMENSIONS;
    }
    @Override
    public Dimension getMaximumSize() {
		return DIMENSIONS;
    }

    @Override
    public void paintComponent(Graphics g) {
		super.paintComponent(g);
		if (elevator.getEmergency()) {
			g.setColor(Color.RED);
		}
		else if (elevator.getStoppingNextFloor()) {
			g.setColor(Color.BLUE);
		}
		else if (elevator.getDirection() == Direction.NONE) {
			g.setColor(Color.GREEN);
		}
		else {
			g.setColor(Color.BLACK);
		}
		g.fillRect(0, (int) DIMENSIONS.getHeight() - HEIGHT - (int) (((int) DIMENSIONS.getHeight() - HEIGHT) * elevator.getHeight()), WIDTH, HEIGHT);

		g.setColor(Color.GRAY);
		int nbFloors = elevator.getNbFloors();
		for (int i = 0; i < nbFloors; i++) {
			int y = HEIGHT + i * ((int) (DIMENSIONS.getHeight() - HEIGHT) / (nbFloors - 1));
			g.fillRect(0, y-1, WIDTH, 3);
		}

		Toolkit.getDefaultToolkit().sync();
    }
}