Fixed TNW-747: Stripe Vault is appear as available payment method during the Order creation for a new customer in Admin. (#1)

- Added check for customer's saved credit cards availability to payment block.

Author: alxcube

Model/Checks/HasActiveSavedCreditCards.php

@@ -0,0 +1,92 @@
+<?php
+/**
+ * TNW_Stripe extension
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the OSL 3.0 License
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/osl-3.0.php
+ *
+ * @category  TNW
+ * @package   TNW_Stripe
+ * @copyright Copyright (c) 2017-2022
+ * @license   Open Software License (OSL 3.0)
+ */
+namespace TNW\Stripe\Model\Checks;
+
+use DateTimeZone;
+use Magento\Framework\Intl\DateTimeFactory;
+use Magento\Payment\Model\Checks\SpecificationInterface;
+use Magento\Payment\Model\MethodInterface;
+use Magento\Quote\Model\Quote;
+use Magento\Vault\Api\Data\PaymentTokenInterface;
+use Magento\Vault\Model\ResourceModel\PaymentToken\Collection;
+use TNW\Stripe\Model\Ui\ConfigProvider;
+
+/**
+ * Model class for customer's saved credit cards presence check.
+ */
+class HasActiveSavedCreditCards implements SpecificationInterface
+{
+    /**
+     * @var Collection
+     */
+    private $paymentTokenCollection;
+
+    /**
+     * @var DateTimeFactory
+     */
+    private $dateTimeFactory;
+
+    /**
+     * @param Collection $paymentTokenCollection
+     * @param DateTimeFactory $dateTimeFactory
+     */
+    public function __construct(
+        Collection $paymentTokenCollection,
+        DateTimeFactory $dateTimeFactory
+    ) {
+        $this->paymentTokenCollection = $paymentTokenCollection;
+        $this->dateTimeFactory = $dateTimeFactory;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isApplicable(MethodInterface $paymentMethod, Quote $quote)
+    {
+        if ($paymentMethod->getCode() !== ConfigProvider::CC_VAULT_CODE) {
+            return true;
+        }
+
+        $customerId = $quote->getCustomerId();
+
+        return $customerId !== null && $this->hasActiveSavedCards($customerId);
+    }
+
+    /**
+     * Checks if customer has active saved credit cards.
+     *
+     * @param int $customerId
+     * @return bool
+     */
+    private function hasActiveSavedCards($customerId)
+    {
+        $this->paymentTokenCollection->addFilter(PaymentTokenInterface::CUSTOMER_ID, $customerId);
+        $this->paymentTokenCollection
+            ->addFilter(PaymentTokenInterface::PAYMENT_METHOD_CODE, ConfigProvider::CODE);
+        $this->paymentTokenCollection->addFilter(PaymentTokenInterface::IS_ACTIVE, 1);
+        $this->paymentTokenCollection->addFilter(PaymentTokenInterface::IS_VISIBLE, 1);
+        $this->paymentTokenCollection->addFieldToFilter(
+            PaymentTokenInterface::EXPIRES_AT,
+            [
+                'gt' => $this->dateTimeFactory->create(
+                    'now',
+                    new DateTimeZone('UTC')
+                )->format('Y-m-d 00:00:00')
+            ]
+        );
+        return $this->paymentTokenCollection->count() > 0;
+    }
+}

etc/di.xml

@@ -393,4 +393,20 @@
                 type="TNW\Stripe\Plugin\Quote\Api\CartManagement"
                 sortOrder="1"/>
     </type>
+
+    <type name="Magento\Payment\Model\Checks\SpecificationFactory">
+        <arguments>
+            <argument name="mapping" xsi:type="array">
+                <item name="has_saved_credit_cards" xsi:type="object">TNW\Stripe\Model\Checks\HasActiveSavedCreditCards</item>
+            </argument>
+        </arguments>
+    </type>
+
+    <type name="Magento\Payment\Block\Form\Container">
+        <arguments>
+            <argument name="additionalChecks" xsi:type="array">
+                <item name="0" xsi:type="string">has_saved_credit_cards</item>
+            </argument>
+        </arguments>
+    </type>
 </config>