MC-22215: Add customerCart Query and cart_id changes to schema and related resolvers

- Fixed Review changes

Author: avattam06

app/code/Magento/QuoteGraphQl/Model/Resolver/CustomerCart.php

@@ -10,13 +10,11 @@
 use Magento\Framework\Exception\NoSuchEntityException;
 use Magento\Framework\GraphQl\Config\Element\Field;
 use Magento\Framework\GraphQl\Exception\GraphQlInputException;
-use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;
 use Magento\Framework\GraphQl\Query\ResolverInterface;
 use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
 use Magento\QuoteGraphQl\Model\Cart\CreateEmptyCartForCustomer;
 use Magento\Authorization\Model\UserContextInterface;
 use Magento\Quote\Api\CartManagementInterface;
-use Magento\Framework\Exception\LocalizedException;
 
 /**
  * Get cart for the customer
@@ -72,13 +70,13 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
     }
 
     /**
-     * Checking if current user is logged
+     * Checking if current user is logged in
      *
      * @param int|null $customerId
      * @param int|null $customerType
      * @return bool
      */
-    private function isCustomer(int $customerId, int $customerType): bool
+    private function isCustomer(?int $customerId, ?int $customerType): bool
     {
         return !empty($customerId) && !empty($customerType) && $customerType !== UserContextInterface::USER_TYPE_GUEST;
     }

app/code/Magento/QuoteGraphQl/Model/Resolver/MaskedCartId.php

@@ -51,11 +51,11 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
     }
 
     /**
-     * Fetch or create masked id for customer's active quote
+     * Get masked id for cart
      *
      * @param int $quoteId
      * @return string
-     * @throws \Magento\Framework\Exception\NoSuchEntityException
+     * @throws GraphQlNoSuchEntityException
      */
     private function getQuoteMaskId(int $quoteId): string
     {

app/code/Magento/QuoteGraphQl/etc/schema.graphqls

@@ -193,7 +193,7 @@ type PlaceOrderOutput {
 }
 
 type Cart {
-    cart_id: ID! @resolver(class: "\\Magento\\QuoteGraphQl\\Model\\Resolver\\MaskedCartId") @doc(description: "The ID of the cart. The value can be an Int or String.")
+    cart_id: ID! @resolver(class: "\\Magento\\QuoteGraphQl\\Model\\Resolver\\MaskedCartId") @doc(description: "The ID of the cart.")
     items: [CartItemInterface] @resolver(class: "\\Magento\\QuoteGraphQl\\Model\\Resolver\\CartItems")
     applied_coupon: AppliedCoupon @resolver(class: "\\Magento\\QuoteGraphQl\\Model\\Resolver\\AppliedCoupon") @doc(description:"An array of coupons that have been applied to the cart") @deprecated(reason: "Use applied_coupons instead ")
     applied_coupons: [AppliedCoupon] @resolver(class: "\\Magento\\QuoteGraphQl\\Model\\Resolver\\AppliedCoupons") @doc(description:"An array of `AppliedCoupon` objects. Each object contains the `code` text attribute, which specifies the coupon code")