package cnam.cours.util;

public interface ILoginController {
	/**
	 * check if a login is already stored
	 * @param login the login
	 * @return true if the login is already stored, false else.
	 */
	boolean isValidLogin(String login);
	/**
	 * check if a tupple (login, password) is already stored
	 * @param login the login
	 * @param password the password
	 * @return true if tupple (login, password) is already stored, false else.
	 */
	boolean isValidLoginPassword(String login, String password);
	/**
	 * add (store) the tuple (login, password)
	 * @param login the login
	 * @param password the password
	 * @return false if the login is already stored, true else.
	 */
	boolean addLogin(String login, String password);
	/**
	 * modify the password associated to a login
	 * @param login the login
	 * @param newPassword the new password
	 * @return false if the login is not already stored, true else.
	 */
	boolean modifyPassword(String login, String newPassword);
}