/**
* Helper function which calculates a single price struct of a product.
* The product can contains multiple price struct elements like the graduated prices
* and the cheapest price struct.
* All price structs will be calculated through this function.
*
* @param Struct\Product\PriceRule $rule
* @param Struct\Tax $tax
* @param Struct\ProductContextInterface $context
* @return Struct\Product\Price
*/
private function calculatePriceStruct(Struct\Product\PriceRule $rule, Struct\Tax $tax, Struct\ProductContextInterface $context)
{
$price = new Struct\Product\Price($rule);
//calculates the normal price of the struct.
$price->setCalculatedPrice($this->calculatePrice($rule->getPrice(), $tax, $context));
//check if a pseudo price is defined and calculates it too.
$price->setCalculatedPseudoPrice($this->calculatePrice($rule->getPseudoPrice(), $tax, $context));
//check if the product has unit definitions and calculate the reference price for the unit.
if ($price->getUnit() && $price->getUnit()->getPurchaseUnit()) {
$price->setCalculatedReferencePrice($this->calculateReferencePrice($price));
}
return $price;
}
/**
* Helper function which builds the graduated prices
* of a product for the passed price group discount array.
*
* This function is used to override the normal graduated prices
* with a definition of the product price group discounts.
*
* @param Struct\Product\PriceRule $reference
* @param Struct\Customer\Group $customerGroup
* @param Struct\Product\PriceDiscount[] $discounts
* @return array
*/
private function buildDiscountGraduations(Struct\Product\PriceRule $reference, Struct\Customer\Group $customerGroup, array $discounts)
{
$prices = [];
$firstDiscount = $discounts[0];
/**@var $previous Struct\Product\PriceRule*/
$previous = null;
if ($firstDiscount->getQuantity() > 1) {
$firstGraduation = clone $reference;
$previous = $firstGraduation;
$prices[] = $firstGraduation;
}
foreach ($discounts as $discount) {
$rule = clone $reference;
$percent = (100 - $discount->getPercent()) / 100;
$price = $reference->getPrice() * $percent;
$pseudo = $reference->getPseudoPrice();
$rule->setPrice($price);
$rule->setPseudoPrice($pseudo);
$rule->setFrom($discount->getQuantity());
$rule->setCustomerGroup($customerGroup);
$rule->setTo(null);
if ($previous) {
$previous->setTo($rule->getFrom() - 1);
}
$previous = $rule;
$prices[] = $rule;
}
return $prices;
}
