vendor/shopware/core/Checkout/Cart/CartRuleLoader.php line 94

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  1. <?php declare(strict_types=1);
  2. namespace Shopware\Core\Checkout\Cart;
  3. use Doctrine\DBAL\Connection;
  4. use Psr\Log\LoggerInterface;
  5. use Shopware\Core\Checkout\Cart\Event\CartCreatedEvent;
  6. use Shopware\Core\Checkout\Cart\Exception\CartTokenNotFoundException;
  7. use Shopware\Core\Checkout\Cart\LineItem\LineItem;
  8. use Shopware\Core\Checkout\Cart\Price\Struct\CartPrice;
  9. use Shopware\Core\Checkout\Cart\Tax\TaxDetector;
  10. use Shopware\Core\Content\Rule\RuleCollection;
  11. use Shopware\Core\Defaults;
  12. use Shopware\Core\Framework\Context;
  13. use Shopware\Core\Framework\DataAbstractionLayer\Exception\EntityNotFoundException;
  14. use Shopware\Core\Framework\Log\Package;
  15. use Shopware\Core\Framework\Util\FloatComparator;
  16. use Shopware\Core\Framework\Uuid\Uuid;
  17. use Shopware\Core\Profiling\Profiler;
  18. use Shopware\Core\System\Country\CountryDefinition;
  19. use Shopware\Core\System\Country\CountryEntity;
  20. use Shopware\Core\System\SalesChannel\SalesChannelContext;
  21. use Symfony\Contracts\Cache\CacheInterface;
  22. use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
  23. use Symfony\Contracts\Service\ResetInterface;
  24. #[Package('checkout')]
  25. class CartRuleLoader implements ResetInterface
  26. {
  27.     private const MAX_ITERATION 7;
  28.     private CartPersisterInterface $cartPersister;
  29.     private ?RuleCollection $rules null;
  30.     private Processor $processor;
  31.     private LoggerInterface $logger;
  32.     private CacheInterface $cache;
  33.     private AbstractRuleLoader $ruleLoader;
  34.     private TaxDetector $taxDetector;
  35.     private EventDispatcherInterface $dispatcher;
  36.     private Connection $connection;
  37.     /**
  38.      * @var array<string, float>
  39.      */
  40.     private array $currencyFactor = [];
  41.     /**
  42.      * @internal
  43.      */
  44.     public function __construct(
  45.         CartPersisterInterface $cartPersister,
  46.         Processor $processor,
  47.         LoggerInterface $logger,
  48.         CacheInterface $cache,
  49.         AbstractRuleLoader $loader,
  50.         TaxDetector $taxDetector,
  51.         Connection $connection,
  52.         EventDispatcherInterface $dispatcher
  53.     ) {
  54.         $this->cartPersister $cartPersister;
  55.         $this->processor $processor;
  56.         $this->logger $logger;
  57.         $this->cache $cache;
  58.         $this->ruleLoader $loader;
  59.         $this->taxDetector $taxDetector;
  60.         $this->dispatcher $dispatcher;
  61.         $this->connection $connection;
  62.     }
  63.     public function loadByToken(SalesChannelContext $contextstring $cartToken): RuleLoaderResult
  64.     {
  65.         try {
  66.             $cart $this->cartPersister->load($cartToken$context);
  67.             return $this->load($context$cart, new CartBehavior($context->getPermissions()), false);
  68.         } catch (CartTokenNotFoundException $e) {
  69.             $cart = new Cart($context->getSalesChannel()->getTypeId(), $cartToken);
  70.             $this->dispatcher->dispatch(new CartCreatedEvent($cart));
  71.             return $this->load($context$cart, new CartBehavior($context->getPermissions()), true);
  72.         }
  73.     }
  74.     public function loadByCart(SalesChannelContext $contextCart $cartCartBehavior $behaviorContextbool $isNew false): RuleLoaderResult
  75.     {
  76.         return $this->load($context$cart$behaviorContext$isNew);
  77.     }
  78.     public function reset(): void
  79.     {
  80.         $this->rules null;
  81.     }
  82.     public function invalidate(): void
  83.     {
  84.         $this->reset();
  85.         $this->cache->delete(CachedRuleLoader::CACHE_KEY);
  86.     }
  87.     private function load(SalesChannelContext $contextCart $cartCartBehavior $behaviorContextbool $new): RuleLoaderResult
  88.     {
  89.         return Profiler::trace('cart-rule-loader', function () use ($context$cart$behaviorContext$new) {
  90.             $rules $this->loadRules($context->getContext());
  91.             // save all rules for later usage
  92.             $all $rules;
  93.             $ids $new $rules->getIds() : $cart->getRuleIds();
  94.             // update rules in current context
  95.             $context->setRuleIds($ids);
  96.             $iteration 1;
  97.             $timestamps $cart->getLineItems()->fmap(function (LineItem $lineItem) {
  98.                 if ($lineItem->getDataTimestamp() === null) {
  99.                     return null;
  100.                 }
  101.                 return $lineItem->getDataTimestamp()->format(Defaults::STORAGE_DATE_TIME_FORMAT);
  102.             });
  103.             // start first cart calculation to have all objects enriched
  104.             $cart $this->processor->process($cart$context$behaviorContext);
  105.             do {
  106.                 $compare $cart;
  107.                 if ($iteration self::MAX_ITERATION) {
  108.                     break;
  109.                 }
  110.                 // filter rules which matches to current scope
  111.                 $rules $rules->filterMatchingRules($cart$context);
  112.                 // update matching rules in context
  113.                 $context->setRuleIds($rules->getIds());
  114.                 // calculate cart again
  115.                 $cart $this->processor->process($cart$context$behaviorContext);
  116.                 // check if the cart changed, in this case we have to recalculate the cart again
  117.                 $recalculate $this->cartChanged($cart$compare);
  118.                 // check if rules changed for the last calculated cart, in this case we have to recalculate
  119.                 $ruleCompare $all->filterMatchingRules($cart$context);
  120.                 if (!$rules->equals($ruleCompare)) {
  121.                     $recalculate true;
  122.                     $rules $ruleCompare;
  123.                 }
  124.                 ++$iteration;
  125.             } while ($recalculate);
  126.             $cart $this->validateTaxFree($context$cart$behaviorContext);
  127.             $index 0;
  128.             foreach ($rules as $rule) {
  129.                 ++$index;
  130.                 $this->logger->info(
  131.                     sprintf('#%s Rule detection: %s with priority %s (id: %s)'$index$rule->getName(), $rule->getPriority(), $rule->getId())
  132.                 );
  133.             }
  134.             $context->setRuleIds($rules->getIds());
  135.             $context->setAreaRuleIds($rules->getIdsByArea());
  136.             // save the cart if errors exist, so the errors get persisted
  137.             if ($cart->getErrors()->count() > || $this->updated($cart$timestamps)) {
  138.                 $this->cartPersister->save($cart$context);
  139.             }
  140.             return new RuleLoaderResult($cart$rules);
  141.         });
  142.     }
  143.     private function loadRules(Context $context): RuleCollection
  144.     {
  145.         if ($this->rules !== null) {
  146.             return $this->rules;
  147.         }
  148.         return $this->rules $this->ruleLoader->load($context)->filterForContext();
  149.     }
  150.     private function cartChanged(Cart $previousCart $current): bool
  151.     {
  152.         $previousLineItems $previous->getLineItems();
  153.         $currentLineItems $current->getLineItems();
  154.         return $previousLineItems->count() !== $currentLineItems->count()
  155.             || $previous->getPrice()->getTotalPrice() !== $current->getPrice()->getTotalPrice()
  156.             || $previousLineItems->getKeys() !== $currentLineItems->getKeys()
  157.             || $previousLineItems->getTypes() !== $currentLineItems->getTypes()
  158.         ;
  159.     }
  160.     private function detectTaxType(SalesChannelContext $contextfloat $cartNetAmount 0): string
  161.     {
  162.         $currency $context->getCurrency();
  163.         $currencyTaxFreeAmount $currency->getTaxFreeFrom();
  164.         $isReachedCurrencyTaxFreeAmount $currencyTaxFreeAmount && $cartNetAmount >= $currencyTaxFreeAmount;
  165.         if ($isReachedCurrencyTaxFreeAmount) {
  166.             return CartPrice::TAX_STATE_FREE;
  167.         }
  168.         $country $context->getShippingLocation()->getCountry();
  169.         $isReachedCustomerTaxFreeAmount $country->getCustomerTax()->getEnabled() && $this->isReachedCountryTaxFreeAmount($context$country$cartNetAmount);
  170.         $isReachedCompanyTaxFreeAmount $this->taxDetector->isCompanyTaxFree($context$country) && $this->isReachedCountryTaxFreeAmount($context$country$cartNetAmountCountryDefinition::TYPE_COMPANY_TAX_FREE);
  171.         if ($isReachedCustomerTaxFreeAmount || $isReachedCompanyTaxFreeAmount) {
  172.             return CartPrice::TAX_STATE_FREE;
  173.         }
  174.         if ($this->taxDetector->useGross($context)) {
  175.             return CartPrice::TAX_STATE_GROSS;
  176.         }
  177.         return CartPrice::TAX_STATE_NET;
  178.     }
  179.     /**
  180.      * @param array<string, string> $timestamps
  181.      */
  182.     private function updated(Cart $cart, array $timestamps): bool
  183.     {
  184.         foreach ($cart->getLineItems() as $lineItem) {
  185.             if (!isset($timestamps[$lineItem->getId()])) {
  186.                 return true;
  187.             }
  188.             $original $timestamps[$lineItem->getId()];
  189.             $timestamp $lineItem->getDataTimestamp() !== null $lineItem->getDataTimestamp()->format(Defaults::STORAGE_DATE_TIME_FORMAT) : null;
  190.             if ($original !== $timestamp) {
  191.                 return true;
  192.             }
  193.         }
  194.         return \count($timestamps) !== $cart->getLineItems()->count();
  195.     }
  196.     private function isReachedCountryTaxFreeAmount(
  197.         SalesChannelContext $context,
  198.         CountryEntity $country,
  199.         float $cartNetAmount 0,
  200.         string $taxFreeType CountryDefinition::TYPE_CUSTOMER_TAX_FREE
  201.     ): bool {
  202.         $countryTaxFreeLimit $taxFreeType === CountryDefinition::TYPE_CUSTOMER_TAX_FREE $country->getCustomerTax() : $country->getCompanyTax();
  203.         if (!$countryTaxFreeLimit->getEnabled()) {
  204.             return false;
  205.         }
  206.         $countryTaxFreeLimitAmount $countryTaxFreeLimit->getAmount() / $this->fetchCurrencyFactor($countryTaxFreeLimit->getCurrencyId(), $context);
  207.         $currency $context->getCurrency();
  208.         $cartNetAmount /= $this->fetchCurrencyFactor($currency->getId(), $context);
  209.         // currency taxFreeAmount === 0.0 mean currency taxFreeFrom is disabled
  210.         return $currency->getTaxFreeFrom() === 0.0 && FloatComparator::greaterThanOrEquals($cartNetAmount$countryTaxFreeLimitAmount);
  211.     }
  212.     private function fetchCurrencyFactor(string $currencyIdSalesChannelContext $context): float
  213.     {
  214.         if ($currencyId === Defaults::CURRENCY) {
  215.             return 1;
  216.         }
  217.         $currency $context->getCurrency();
  218.         if ($currencyId === $currency->getId()) {
  219.             return $currency->getFactor();
  220.         }
  221.         if (\array_key_exists($currencyId$this->currencyFactor)) {
  222.             return $this->currencyFactor[$currencyId];
  223.         }
  224.         $currencyFactor $this->connection->fetchOne(
  225.             'SELECT `factor` FROM `currency` WHERE `id` = :currencyId',
  226.             ['currencyId' => Uuid::fromHexToBytes($currencyId)]
  227.         );
  228.         if (!$currencyFactor) {
  229.             throw new EntityNotFoundException('currency'$currencyId);
  230.         }
  231.         return $this->currencyFactor[$currencyId] = (float) $currencyFactor;
  232.     }
  233.     private function validateTaxFree(SalesChannelContext $contextCart $cartCartBehavior $behaviorContext): Cart
  234.     {
  235.         $totalCartNetAmount $cart->getPrice()->getPositionPrice();
  236.         if ($context->getTaxState() === CartPrice::TAX_STATE_GROSS) {
  237.             $totalCartNetAmount $totalCartNetAmount $cart->getLineItems()->getPrices()->getCalculatedTaxes()->getAmount();
  238.         }
  239.         $taxState $this->detectTaxType($context$totalCartNetAmount);
  240.         $previous $context->getTaxState();
  241.         if ($taxState === $previous) {
  242.             return $cart;
  243.         }
  244.         $context->setTaxState($taxState);
  245.         $cart->setData(null);
  246.         $cart $this->processor->process($cart$context$behaviorContext);
  247.         if ($previous !== CartPrice::TAX_STATE_FREE) {
  248.             $context->setTaxState($previous);
  249.         }
  250.         return $cart;
  251.     }
  252. }