/**
* Handle customer VAT number if needed on collect_totals_before event of quote address
*
* @param \Magento\Framework\Event\Observer $observer
* @return void
*/
public function execute(\Magento\Framework\Event\Observer $observer)
{
/** @var \Magento\Quote\Api\Data\ShippingAssignmentInterface $shippingAssignment */
$shippingAssignment = $observer->getShippingAssignment();
/** @var \Magento\Quote\Model\Quote $quote */
$quote = $observer->getQuote();
/** @var \Magento\Quote\Model\Quote\Address $address */
$address = $shippingAssignment->getShipping()->getAddress();
$customer = $quote->getCustomer();
$storeId = $customer->getStoreId();
if ($customer->getDisableAutoGroupChange() || false == $this->vatValidator->isEnabled($address, $storeId)) {
return;
}
$customerCountryCode = $address->getCountryId();
$customerVatNumber = $address->getVatId();
$groupId = null;
if (empty($customerVatNumber) || false == $this->customerVat->isCountryInEU($customerCountryCode)) {
$groupId = $customer->getId() ? $this->groupManagement->getDefaultGroup($storeId)->getId() : $this->groupManagement->getNotLoggedInGroup()->getId();
} else {
// Magento always has to emulate group even if customer uses default billing/shipping address
$groupId = $this->customerVat->getCustomerGroupIdBasedOnVatNumber($customerCountryCode, $this->vatValidator->validate($address, $storeId), $storeId);
}
if ($groupId) {
$address->setPrevQuoteCustomerGroupId($quote->getCustomerGroupId());
$quote->setCustomerGroupId($groupId);
$customer->setGroupId($groupId);
$quote->setCustomer($customer);
}
}