[site-reviews] Auto assign category to reviews with a title and content

/**
 * Modify the review values before they are saved
 * Paste this in your active theme's functions.php file.
 */
add_filter('site-reviews/create/review-values', function (array $values): array {
    // skip category assignment if the review title is empty
    if (empty($values['title'])) {
        return $values;
    }
    // skip category assignment if the review content is empty
    if (empty($values['content'])) {
        return $values;
    }
    // create the category if it doesn't already exist
    $term = wp_create_term('full-review', glsr()->taxonomy);
    if (is_wp_error($term)) {
        // log the error if the category couldn't be created
        glsr_log()->error($term->get_error_message());
        return $values;
    }
    if (!empty($term['term_taxonomy_id'])) {
        // assign the new review to the category
        $values['assigned_terms'][] = $term['term_taxonomy_id'];
    }
    return $values;
});