#141 Enables date option type for graphql entry point

Author: Roman Glushko

app/code/Magento/CatalogGraphQl/Model/Product/Option/DateType.php

@@ -0,0 +1,59 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\CatalogGraphQl\Model\Product\Option;
+
+use Magento\Catalog\Model\Product\Option\Type\Date as ProductDateOptionType;
+use Magento\Framework\Stdlib\DateTime;
+
+/**
+ * Catalog product option date validator
+ */
+class DateType extends ProductDateOptionType
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function validateUserValue($values)
+    {
+        if ($this->_dateExists() || $this->_timeExists()) {
+            return parent::validateUserValue($this->formatValues($values));
+        }
+
+        return $this;
+    }
+
+    /**
+     * @param array $values
+     * @return array mixed
+     */
+    protected function formatValues($values)
+    {
+        if (isset($values[$this->getOption()->getId()])) {
+            $value = $values[$this->getOption()->getId()];
+            $dateTime = \DateTime::createFromFormat(DateTime::DATETIME_PHP_FORMAT, $value);
+            $values[$this->getOption()->getId()] = [
+                'date' => $value,
+                'year' => $dateTime->format('Y'),
+                'month' => $dateTime->format('m'),
+                'day' => $dateTime->format('d'),
+                'hour' => $dateTime->format('H'),
+                'minute' => $dateTime->format('i'),
+                'day_part' => $dateTime->format('a'),
+            ];
+        }
+
+        return $values;
+    }
+
+    /**
+     * @return bool
+     */
+    public function useCalendar()
+    {
+        return false;
+    }
+}

app/code/Magento/CatalogGraphQl/etc/graphql/di.xml

@@ -6,6 +6,7 @@
  */
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
+    <preference for="Magento\Catalog\Model\Product\Option\Type\Date" type="Magento\CatalogGraphQl\Model\Product\Option\DateType" />
     <type name="Magento\CatalogGraphQl\Model\ProductInterfaceTypeResolverComposite">
         <arguments>
             <argument name="productTypeNameResolvers" xsi:type="array">

app/code/Magento/QuoteGraphQl/Model/Resolver/CartItem/CustomizableOptions.php

@@ -135,21 +135,44 @@ private function getOptionData($cartItem, int $optionId): array
                 'units' => '$',
                 'value' => $optionValue->getPrice(),
             ];
+
+            $selectedOptionValueData = [$selectedOptionValueData];
         }
 
-        if ('field' == $option->getType()) {
+        if ('field' == $option->getType() || 'date' == $option->getType()) {
             $selectedOptionValueData['price'] = [
                 'type' => strtoupper($option->getPriceType()),
                 'units' => '$',
                 'value' => $option->getPrice(),
             ];
+
+            $selectedOptionValueData = [$selectedOptionValueData];
+        }
+
+        if ('multiple' == $option->getType()) {
+            $selectedOptionValueData = [];
+            $optionIds = explode(',', $itemOption->getValue());
+
+            foreach ($optionIds as $optionId) {
+                $optionValue = $option->getValueById($optionId);
+
+                $selectedOptionValueData[] = [
+                    'id' => $itemOption->getId(),
+                    'label' => $optionValue->getTitle(),
+                    'price' => [
+                        'type' => strtoupper($optionValue->getPriceType()),
+                        'units' => '$',
+                        'value' => $optionValue->getPrice(),
+                    ],
+                ];
+            }
         }
 
         return [
             'id' => $option->getId(),
             'label' => $option->getTitle(),
             'type' => $option->getType(),
-            'values' => [$selectedOptionValueData],
+            'values' => $selectedOptionValueData,
             'sort_order' => $option->getSortOrder(),
         ];
     }

app/code/Magento/SimpleProductGraphQl/Model/Resolver/Cart/AddSimpleProductsToCart.php

@@ -120,8 +120,6 @@ public function resolve(Field $field, $context, ResolveInfo $info, array $value
             );
         }
 
-        // todo: add security checking
-
         /** @var CartInterface|Quote $cart */
         $cart = $this->guestCartRepository->get($cartId);