prepareCustomerData example

// Normalize call between create and update to allow same parameters         if (isset($params['defaultBillingAddress'])) {
            $params['billing'] = $params['defaultBillingAddress'];
            unset($params['defaultBillingAddress']);
        }

        if (isset($params['defaultShippingAddress'])) {
            $params['shipping'] = $params['defaultShippingAddress'];
            unset($params['defaultShippingAddress']);
        }

        $params = $this->prepareCustomerData($params, $customer);
        $params = $this->prepareAssociatedData($params, $customer);
        $customer->fromArray($params);

        $billing = $this->createAddress($params['billing']) ?? new AddressModel();
        $shipping = $this->createAddress($params['shipping'] ?? null);

        $registerService = $this->getContainer()->get(RegisterServiceInterface::class);
        $context = $this->getContainer()->get(ContextServiceInterface::class)->getShopContext()->getShop();

        $context->addAttribute('sendOptinMail', new Attribute([
            'sendOptinMail' => ($params['sendOptinMail'] ?? false) === true,
        ]));

if (!($paymentData instanceof PaymentData) && !empty($params['paymentData']) && !empty(array_filter($params['paymentData'][0]))) {
            $paymentData = new PaymentData();
            $customer->addPaymentData($paymentData);

            /** @var Payment $payment */
            $payment = $this->getManager()
                ->getRepository(Payment::class)
                ->find($paymentId);
            $paymentData->setPaymentMean($payment);
        }

        $params = $this->prepareCustomerData($params, $customer, $paymentData);

        // Set parameter to the customer model.         $customer->fromArray($params);

        // If user will be activated, but the first login is still 0, because he was in doi-process         if ($customer->getActive() && (!$customer->getFirstLogin() || $customer->getFirstLogin()->getTimestamp() === 0)) {
            $customer->setFirstLogin(new DateTime());
        }

        $password = $this->Request()->getParam('newPassword');