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MinimalTierPriceCalculator.php
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MinimalTierPriceCalculator.php
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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Catalog\Pricing\Price;
use Magento\Framework\Pricing\SaleableInterface;
use Magento\Framework\Pricing\Adjustment\CalculatorInterface;
use Magento\Framework\Pricing\Amount\AmountInterface;
/**
* As Low As shows minimal value of Tier Prices
*/
class MinimalTierPriceCalculator implements MinimalPriceCalculatorInterface
{
/**
* @var CalculatorInterface
*/
private $calculator;
/**
* @param CalculatorInterface $calculator
*/
public function __construct(CalculatorInterface $calculator)
{
$this->calculator = $calculator;
}
/**
* Get raw value of "as low as" as a minimal among tier prices
* {@inheritdoc}
*/
public function getValue(SaleableInterface $saleableItem)
{
/** @var TierPrice $price */
$price = $saleableItem->getPriceInfo()->getPrice(TierPrice::PRICE_CODE);
$tierPriceList = $price->getTierPriceList();
$tierPrices = [];
foreach ($tierPriceList as $tierPrice) {
/** @var AmountInterface $price */
$price = $tierPrice['price'];
$tierPrices[] = $price->getValue();
}
return $tierPrices ? min($tierPrices) : null;
}
/**
* Return calculated amount object that keeps "as low as" value
* {@inheritdoc}
*/
public function getAmount(SaleableInterface $saleableItem)
{
$value = $this->getValue($saleableItem);
return $value === null
? null
: $this->calculator->getAmount($value, $saleableItem);
}
}