wcfm-vendor-direct-payment-methods

function vendor_payment_methods_shortcode() {
    global $product;
    $vendor_id = get_post_field('post_author', $product->get_id());
    if(!$vendor_id) return '';
    $vendor_payment_methods = get_user_meta($vendor_id, 'wcfm_preferred_customer_payment', true);
    if (WC()->payment_gateways()) {
        $payment_gateways = WC()->payment_gateways->get_available_payment_gateways();
    } else {
        $payment_gateways = [];
    }
    if (!empty($payment_gateways) && !empty($vendor_payment_methods) ) {
        $vendor_payment_methods_keys = array_keys($vendor_payment_methods);
        $vendor_payment_method_names = [];
        foreach($vendor_payment_methods_keys as $method) {
            $vendor_payment_method_names[] = $payment_gateways[$method]->title ?? $method;
        }
        $payment_methods_text = implode(', ', $vendor_payment_method_names);
        return 'Payment methods available for this vendor: ' . $payment_methods_text;
    } else {
        return 'No payment methods available for this vendor.';
    }
}

add_shortcode('vendor_payment_methods', 'vendor_payment_methods_shortcode');