Discount rules v2: Subscription compatible - Apply discount only for subscription price (excluding sign up fee)

Discount rules v2: Subscription compatible - Apply discount only for subscription price (excluding sign up fee)

if(!function_exists('calculateProductPriceForWooDiscountRules')){
    function calculateProductPriceForWooDiscountRules($product_price, $product, $quantity, $cart_item, $calculate_discount_from){
        if ($calculate_discount_from == 'regular_price') {
            if (method_exists($product, 'get_regular_price')) {
                $product_price = $product->get_regular_price();
            }
        } else {
            if (method_exists($product, 'get_sale_price')) {
                $product_price = $product->get_sale_price();
            }
            if(empty($product_price)){
                if (method_exists($product, 'get_regular_price')) {
                    $product_price = $product->get_regular_price();
                }
            }
        }

        return $product_price;
    }
}

add_filter('advanced_woo_discount_rules_product_original_price_on_before_calculate_discount', 'calculateProductPriceForWooDiscountRules', 10, 5);

add_filter('advanced_woo_discount_rules_product_price_on_before_calculate_discount', 'calculateProductPriceForWooDiscountRules', 10, 5);