Hide referral link for users that spent below 300

functions.php

<?php

add_filter('wpgens_raf_code', 'gens_raf_code', 10, 1);
function gens_raf_code($raf_code) {
    $current_user = wp_get_current_user();
    $total_spent = get_user_total_spent($current_user->ID);
    
    if ($total_spent < 300) {
        return 'Referral code is available only to users who have spent at least 300';
    }
    return $raf_code;
}

add_filter('wpgens_raf_link', 'gens_raf_link', 10, 3);
function gens_raf_link($raf_link, $referral_id, $type) {
    $current_user = wp_get_current_user();
    $total_spent = get_user_total_spent($current_user->ID);

    if ($total_spent < 300) {
        return 'Referral link is available only to users who have spent at least 300';
    }
    return $raf_link;
}

// Helper function to get the total amount spent by a user
function get_user_total_spent($user_id) {
    $customer = new WC_Customer($user_id);
    return $customer->get_total_spent();
}

add_filter('body_class', 'add_spent_based_body_class');
function add_spent_based_body_class($classes) {
    $current_user = wp_get_current_user();
    if ($current_user->ID) {
        $total_spent = get_user_total_spent($current_user->ID);
        if ($total_spent < 300) {
            $classes[] = 'hide-referral-elements';
        }
    }
    return $classes;
}

add_action('wp_footer', 'add_spent_based_css');
function add_spent_based_css() {
    $current_user = wp_get_current_user();
    if ($current_user->ID) {
        $total_spent = get_user_total_spent($current_user->ID);
        if ($total_spent < 300) {
            echo '<style>.hide-referral-elements .gens-referral_coupons__table,.hide-referral-elements .gens-referral_coupons__title, .hide-referral-elements .gens-referral_coupons__title, .hide-referral-elements .gens-raf-field--social, .hide-referral-elements .gens-raf-field--email { display: none; }</style>';
        }
    }
}