Method getCartDiscountPriceForProduct

/*
 * Specific case: global cart discount will be displayed in category, item or items view
 * but under specific rules like: only percentage, no total amount, no minimum quantity rule !!!
 * Display the cart discount price in category, items or product view
 */
public static function getCartDiscountPriceForProduct($productId, $categoryId, &$priceItems)
{
    $paramsC = PhocacartUtils::getComponentParameters();
    $display_discount_cart_product_views = $paramsC->get('display_discount_cart_product_views', 0);
    if ($display_discount_cart_product_views == 0) {
        return false;
    }
    // DISABLED FOR
    // when calculation is fixed amount (we cannot divide the discount into products which are not in checkout cart)
    // when rule TOTAL AMOUNT is active (displaying products is not checkout to check the total amount)
    // when rule MINIMUM QUANTITY is active (displaying products is not checkout to check the minimum quantity)
    $discount = self::getCartDiscount($productId, $categoryId, 0, 0);
    if (isset($discount['discount']) && isset($discount['calculation_type'])) {
        $priceItems['bruttotxt'] = $discount['title'];
        $priceItems['nettotxt'] = $discount['title'];
        $quantity = 1;
        //Quantity for displaying the price in items,category and product view is always 1
        $total = array();
        // not used in product view
        if ($discount['calculation_type'] == 0) {
            // FIXED AMOUNT
            // Fixed amount cannot be divided into product in views (category, items, item)
            // this is the opposite to checkout where we can divide fixed amount to all products added to cart
            $priceItems = array();
            return false;
        } else {
            // PERCENTAGE
            PhocacartCalculation::calculateDiscountPercentage($discount['discount'], $quantity, $priceItems, $total);
        }
        PhocacartCalculation::correctItemsIfNull($priceItems);
        PhocacartCalculation::formatItems($priceItems);
        return true;
    }
    $priceItems = array();
    return false;
}