minimumOrderPrice = $minimumOrderPrice; $this->fee = $fee; \add_action('woocommerce_cart_calculate_fees', [$this, 'wc_add_surcharge']); } function wc_add_surcharge($cart) { $total_price = 0; foreach ($cart->get_cart() as $cart_item) { if (isset($cart_item['custom_data']['technology'])) { $price = $cart_item['data']->get_price(); $quantity = $cart_item['quantity']; $total_price += $price * $quantity; } } if ($total_price < $this->minimumOrderPrice && $total_price > 0): $cart->add_fee('Minimum logistyczne (dla zamówień poniżej 350 zł)', $this->fee); endif; } }