interface UserInterface

interface UserInterface extends ContentEntityInterface, EntityChangedInterface, AccountInterface {
    
    /**
     * Maximum length of username text field.
     *
     * Keep this under 191 characters so we can use a unique constraint in MySQL.
     */
    const USERNAME_MAX_LENGTH = 60;
    
    /**
     * Only administrators can create user accounts.
     */
    const REGISTER_ADMINISTRATORS_ONLY = 'admin_only';
    
    /**
     * Visitors can create their own accounts.
     */
    const REGISTER_VISITORS = 'visitors';
    
    /**
     * Visitors can create accounts that only become active with admin approval.
     */
    const REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL = 'visitors_admin_approval';
    
    /**
     * New users will be set to the default time zone at registration.
     */
    const TIMEZONE_DEFAULT = 0;
    
    /**
     * New users will get an empty time zone at registration.
     */
    const TIMEZONE_EMPTY = 1;
    
    /**
     * New users will select their own timezone at registration.
     */
    const TIMEZONE_SELECT = 2;
    
    /**
     * Whether a user has a certain role.
     *
     * @param string $rid
     *   The role ID to check.
     *
     * @return bool
     *   Returns TRUE if the user has the role, otherwise FALSE.
     *
     * @todo in Drupal 11, move method to Drupal\Core\Session\AccountInterface.
     * @see https://www.drupal.org/node/3228209
     */
    public function hasRole($rid);
    
    /**
     * Add a role to a user.
     *
     * @param string $rid
     *   The role ID to add.
     *
     * @return $this
     */
    public function addRole($rid);
    
    /**
     * Remove a role from a user.
     *
     * @param string $rid
     *   The role ID to remove.
     *
     * @return $this
     */
    public function removeRole($rid);
    
    /**
     * Sets the username of this account.
     *
     * @param string $username
     *   The new user name.
     *
     * @return $this
     *   The called user entity.
     */
    public function setUsername($username);
    
    /**
     * Returns the hashed password.
     *
     * @return string|null
     *   The hashed password, or NULL if a password is not set.
     */
    public function getPassword();
    
    /**
     * Sets the user password.
     *
     * @param string $password
     *   The new un-hashed password.
     *
     * @return $this
     *   The called user entity.
     */
    public function setPassword($password);
    
    /**
     * Sets the email address of the user.
     *
     * @param string $mail
     *   The new email address of the user.
     *
     * @return $this
     *   The called user entity.
     */
    public function setEmail($mail);
    
    /**
     * Returns the creation time of the user as a UNIX timestamp.
     *
     * @return int
     *   Timestamp of the creation date.
     */
    public function getCreatedTime();
    
    /**
     * Sets the UNIX timestamp when the user last accessed the site..
     *
     * @param int $timestamp
     *   Timestamp of the last access.
     *
     * @return $this
     *   The called user entity.
     */
    public function setLastAccessTime($timestamp);
    
    /**
     * Returns the UNIX timestamp when the user last logged in.
     *
     * @return int
     *   Timestamp of the last login time.
     */
    public function getLastLoginTime();
    
    /**
     * Sets the UNIX timestamp when the user last logged in.
     *
     * @param int $timestamp
     *   Timestamp of the last login time.
     *
     * @return $this
     *   The called user entity.
     */
    public function setLastLoginTime($timestamp);
    
    /**
     * Returns TRUE if the user is active.
     *
     * @return bool
     *   TRUE if the user is active, false otherwise.
     */
    public function isActive();
    
    /**
     * Returns TRUE if the user is blocked.
     *
     * @return bool
     *   TRUE if the user is blocked, false otherwise.
     */
    public function isBlocked();
    
    /**
     * Activates the user.
     *
     * @return $this
     *   The called user entity.
     */
    public function activate();
    
    /**
     * Blocks the user.
     *
     * @return $this
     *   The called user entity.
     */
    public function block();
    
    /**
     * Returns the email that was used when the user was registered.
     *
     * @return string
     *   Initial email address of the user.
     */
    public function getInitialEmail();
    
    /**
     * Sets the existing plain text password.
     *
     * Required for validation when changing the password, name or email fields.
     *
     * @param string $password
     *   The existing plain text password of the user.
     *
     * @return $this
     */
    public function setExistingPassword($password);
    
    /**
     * Checks the existing password if set.
     *
     * @param \Drupal\user\UserInterface $account_unchanged
     *   The unchanged user entity to compare against.
     *
     * @return bool
     *   TRUE if the correct existing password was provided.
     *
     * @see UserInterface::setExistingPassword()
     */
    public function checkExistingPassword(UserInterface $account_unchanged);

}