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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\QuoteGraphQl\Model\Resolver;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Query\ResolverInterface;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
use Magento\Quote\Model\Quote;
use Magento\Quote\Model\Quote\Address\Total;
use Magento\QuoteGraphQl\Model\Cart\TotalsCollector;
use Magento\Store\Model\ScopeInterface;
/**
* @inheritdoc
*/
class CartPrices implements ResolverInterface
{
/**
* @var TotalsCollector
*/
private $totalsCollector;
/**
* @var ScopeConfigInterface
*/
private ScopeConfigInterface $scopeConfig;
/**
* @param TotalsCollector $totalsCollector
* @param ScopeConfigInterface|null $scopeConfig
*/
public function __construct(
TotalsCollector $totalsCollector,
ScopeConfigInterface $scopeConfig = null
) {
$this->totalsCollector = $totalsCollector;
$this->scopeConfig = $scopeConfig ?? ObjectManager::getInstance()->get(ScopeConfigInterface::class);
}
/**
* @inheritdoc
*/
public function resolve(Field $field, $context, ResolveInfo $info, array $value = null, array $args = null)
{
if (!isset($value['model'])) {
throw new LocalizedException(__('"model" value should be specified'));
}
/** @var Quote $quote */
$quote = $value['model'];
/**
* To calculate a right discount value
* before calculate totals
* need to reset Cart Fixed Rules in the quote
*/
$quote->setCartFixedRules([]);
$cartTotals = $this->totalsCollector->collectQuoteTotals($quote);
$currency = $quote->getQuoteCurrencyCode();
return [
'grand_total' => ['value' => $cartTotals->getGrandTotal(), 'currency' => $currency],
'subtotal_including_tax' => ['value' => $cartTotals->getSubtotalInclTax(), 'currency' => $currency],
'subtotal_excluding_tax' => ['value' => $cartTotals->getSubtotal(), 'currency' => $currency],
'subtotal_with_discount_excluding_tax' => [
'value' => $this->getSubtotalWithDiscountExcludingTax($cartTotals),
'currency' => $currency
],
'applied_taxes' => $this->getAppliedTaxes($cartTotals, $currency),
'discount' => $this->getDiscount($cartTotals, $currency),
'model' => $quote
];
}
/**
* Returns taxes applied to the current quote
*
* @param Total $total
* @param string $currency
* @return array
*/
private function getAppliedTaxes(Total $total, string $currency): array
{
$appliedTaxesData = [];
$appliedTaxes = $total->getAppliedTaxes();
if (empty($appliedTaxes)) {
return $appliedTaxesData;
}
$rates = [];
foreach ($appliedTaxes as $appliedTax) {
foreach ($appliedTax['rates'] as $appliedTaxRate) {
$rateTitle = $appliedTaxRate['title'];
if (!array_key_exists($rateTitle, $rates)) {
$rates[$rateTitle] = 0.0;
}
$rates[$rateTitle] += $appliedTax['amount'];
}
}
foreach ($rates as $title => $amount) {
$appliedTaxesData[] = [
'label' => $title,
'amount' => ['value' => $amount, 'currency' => $currency]
];
}
return $appliedTaxesData;
}
/**
* Returns information about an applied discount
*
* @param Total $total
* @param string $currency
* @return array|null
*/
private function getDiscount(Total $total, string $currency)
{
if ($total->getDiscountAmount() === 0) {
return null;
}
return [
'label' => $total->getDiscountDescription() !== null ? explode(', ', $total->getDiscountDescription()) : [],
'amount' => ['value' => $total->getDiscountAmount(), 'currency' => $currency]
];
}
/**
* Get Subtotal with discount excluding tax.
*
* @param Total $cartTotals
* @return float
*/
private function getSubtotalWithDiscountExcludingTax(Total $cartTotals): float
{
$discountIncludeTax = $this->scopeConfig->getValue(
'tax/calculation/discount_tax',
ScopeInterface::SCOPE_STORE
) ?? 0;
$discountExclTax = $discountIncludeTax ?
$cartTotals->getDiscountAmount() + $cartTotals->getDiscountTaxCompensationAmount() :
$cartTotals->getDiscountAmount();
return $cartTotals->getSubtotal() + $discountExclTax;
}
}