class AdminAccountSwitcher

final class AdminAccountSwitcher implements AccountSwitcherInterface {
    public function __construct(AccountSwitcherInterface $decorated, EntityTypeManagerInterface $entityTypeManager, bool $isSuperUserAccessEnabled) {
    }
    
    /**
     * Switches to an administrative account.
     *
     * This will switch to the first available account with a role that has the
     * `is_admin` flag. If there are no such roles, or no such users, this will
     * try to switch to user 1 if superuser access is enabled.
     *
     * @return \Drupal\Core\Session\AccountInterface
     *   The account that was switched to.
     *
     * @throws \Drupal\Core\Access\AccessException
     *   Thrown if there are no users with administrative roles.
     */
    public function switchToAdministrator() : AccountInterface {
        $admin_roles = $this->entityTypeManager
            ->getStorage('user_role')
            ->getQuery()
            ->condition('is_admin', TRUE)
            ->execute();
        $user_storage = $this->entityTypeManager
            ->getStorage('user');
        if ($admin_roles) {
            $accounts = $user_storage->getQuery()
                ->accessCheck(FALSE)
                ->condition('roles', $admin_roles, 'IN')
                ->condition('status', 1)
                ->sort('uid')
                ->range(0, 1)
                ->execute();
        }
        else {
            $accounts = [];
        }
        $account = $user_storage->load(reset($accounts) ?: 1);
        assert($account instanceof AccountInterface);
        if (array_intersect($account->getRoles(), $admin_roles) || (int) $account->id() === 1 && $this->isSuperUserAccessEnabled) {
            $this->switchTo($account);
            return $account;
        }
        throw new AccessException("There are no user accounts with administrative roles.");
    }
    
    /**
     * {@inheritdoc}
     */
    public function switchTo(AccountInterface $account) : AccountSwitcherInterface {
        $this->decorated
            ->switchTo($account);
        return $this;
    }
    
    /**
     * {@inheritdoc}
     */
    public function switchBack() : AccountSwitcherInterface {
        $this->decorated
            ->switchBack();
        return $this;
    }

}