package labwork5;

/**
 * The Canvas class is an implementation of the InteractiveElement interface representing a canvas in a GUI.
 * It can send and receive updates through a Mediator.
 */
public class Canvas implements InteractiveElement{

    private String id;
    private Mediator mediator;

    /**
     * Constructs a Canvas with a specified ID and associated Mediator.
     *
     * @param id       the unique identifier for the canvas
     * @param mediator the Mediator to communicate with
     */
    public Canvas(String id, Mediator mediator) {
        this.id = id;
        this.mediator = mediator;
    }

    /**
     * Retrieves the ID of the canvas.
     *
     * @return the ID of the canvas
     */
    public String getId() {
        return id;
    }

    /**
     * Sends an update message to the associated Mediator.
     *
     * @param updateMessage the update message to be sent
     */
    @Override
    public void sendUpdate(String updateMessage) {
        mediator.update(this, updateMessage);
    }

    /**
     * Receives an update message from the Mediator and prints a message.
     *
     * @param updateMessage the received update message
     */
    @Override
    public void receiveUpdate(String updateMessage) {
        System.out.printf("%s has has received an update with a message:\"%s\"\n", id, updateMessage);
    }
}