/**
 * This snippet make a {membership_info} tag available in email notifications
 *
 * @param array $args
 * @param \GeminiLabs\SiteReviews\Modules\Email|\GeminiLabs\SiteReviews\Addon\Notifications\Email $email
 * @return array
 */
add_filter('site-reviews/email/compose', function ($args, $email) {
    $review = glsr()->args($email->data)->review;
    if (empty($review)) {
        return $args;
    }
    if ($user = $review->user()) {
        $membership = ''; // TODO: put the user's membership info here as a string
        $args['template-tags']['membership_info'] = $membership;
    }
    return $args;
}, 10, 2);