[GraphQl] Add wishlist item to cart Implementation

app/code/Magento/WishlistGraphQl/Mapper/WishlistDataMapper.php

@@ -66,4 +66,4 @@ private function getMappedVisibility(int $visibility): ?string
 
         return isset($visibilityEnums[$visibility]) ? strtoupper($visibilityEnums[$visibility]) : null;
     }
-}
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/BundleDataProvider.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Wishlist\Model\Item;
+use Magento\Framework\GraphQl\Query\Uid;
+
+/**
+ * Data provider for bundlue product cart item request
+ */
+class BundleDataProvider implements CartItemsRequestDataProviderInterface
+{
+    /** 
+     * @var Uid 
+     */
+    private $uidEncoder;
+
+    /**
+     * @param Uid $uidEncoder
+     */
+    public function __construct(
+        Uid $uidEncoder
+    ) {
+        $this->uidEncoder = $uidEncoder;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(Item $wishlistItem, ?string $sku): array
+    {
+        $buyRequest = $wishlistItem->getBuyRequest();
+        $selected_options = [];
+        if (isset($buyRequest['bundle_option'])) {
+            $bundleOptions = $buyRequest['bundle_option'];
+            $bundleOptionQty = $buyRequest['bundle_option_qty'];
+            foreach ($bundleOptions as $option => $value) {
+                $qty = $bundleOptionQty[$option];
+                $selected_options[] = $this->uidEncoder->encode("bundle/$option/$value/$qty");
+            }
+        }
+
+        $cartItems['selected_options'] = $selected_options;
+        return $cartItems;
+    }
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/CartItemsRequestBuilder.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Wishlist\Model\Item;
+
+/**
+ * Building cart items request for add to cart form wishlist buy request
+ */
+class CartItemsRequestBuilder
+{
+    /**
+     * @var CartItemsRequestDataProviderInterface[]
+     */
+    private $providers;
+
+    /**
+     * @var ProductRepositoryInterface
+     */
+    private $productRepository;
+
+    /**
+     * @param ProductRepositoryInterface $productRepository
+     * @param array $providers
+     */
+    public function __construct(
+        ProductRepositoryInterface $productRepository,
+        array $providers = []
+    ) {
+        $this->productRepository = $productRepository;
+        $this->providers = $providers;
+    }
+
+    /**
+     * Build wishlist cart item request for adding to cart
+     *
+     * @param Item $wishlistItem
+     * @return array
+     */
+    public function build(Item $wishlistItem): array
+    {
+        $product = $this->productRepository->getById($wishlistItem->getProductId());
+        $parentsku = $product->getSku();
+        $cartItems['quantity'] = floatval($wishlistItem->getQty());
+        $cartItems['sku'] = $parentsku;
+
+        foreach ($this->providers as $provider) {
+            $cartItems = array_merge_recursive($cartItems, $provider->execute($wishlistItem, $parentsku));
+        }
+        return $cartItems;
+    }
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/CartItemsRequestDataProviderInterface.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Wishlist\Model\Item;
+
+/**
+ * Build cart item request for adding products to cart
+ */
+interface CartItemsRequestDataProviderInterface
+{
+    /**
+     * Provide cart item request from buy request to add wishlist items to cart
+     *
+     * @param Item $wishlistItem
+     * @param string $sku
+     *
+     * @return array
+     */
+    public function execute(Item $wishlistItem, ?string $sku): array;
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/ConfigurableDataProvider.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Wishlist\Model\Item;
+use Magento\Framework\GraphQl\Query\Uid;
+
+/**
+ * Data provider for configurable product cart item request
+ */
+class ConfigurableDataProvider implements CartItemsRequestDataProviderInterface
+{
+    /** 
+     * @var Uid 
+     */
+    private $uidEncoder;
+
+    /**
+     * @param Uid $uidEncoder
+     */
+    public function __construct(
+        Uid $uidEncoder
+    ) {
+        $this->uidEncoder = $uidEncoder;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(Item $wishlistItem, ?string $sku): array
+    {
+        $buyRequest = $wishlistItem->getBuyRequest();
+        $selected_options = [];
+        if (isset($buyRequest['super_attribute'])) {
+            $superAttributes = $buyRequest['super_attribute'];
+            foreach ($superAttributes as $attributeId => $value) {
+                $selected_options[] = $this->uidEncoder->encode("configurable/$attributeId/$value");
+            }
+        }
+        $cartItems['selected_options'] = $selected_options;
+        return $cartItems;
+    }
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/CustomizableOptionDataProvider.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Catalog\Api\ProductCustomOptionRepositoryInterface;
+use Magento\Wishlist\Model\Item;
+use Magento\Framework\GraphQl\Query\Uid;
+
+/**
+ * Data provider for custom options for cart item request
+ */
+class CustomizableOptionDataProvider implements CartItemsRequestDataProviderInterface
+{
+    /**
+     * @var ProductCustomOptionRepositoryInterface
+     */
+    private $productCustomOptionRepository;
+
+    /** 
+     * @var Uid 
+     */
+    private $uidEncoder;
+
+    /**
+     * @param ProductCustomOptionRepositoryInterface $productCustomOptionRepository
+     * @param Uid $uidEncoder
+     */
+    public function __construct(
+        ProductCustomOptionRepositoryInterface $productCustomOptionRepository,
+        Uid $uidEncoder
+    ) {
+        $this->productCustomOptionRepository = $productCustomOptionRepository;
+        $this->uidEncoder = $uidEncoder;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(Item $wishlistItem, ?string $sku): array
+    {
+        $buyRequest = $wishlistItem->getBuyRequest();
+        $options = isset($buyRequest['options'])?$buyRequest['options']:[];
+        $customOptions = $this->productCustomOptionRepository->getList($sku);
+        $selectedOptions = [];
+        $enteredOptions = [];
+        foreach ($customOptions as $customOption) {
+            $optionId = $customOption->getOptionId();
+
+            if (isset($options[$optionId])) {
+                $optionType = $customOption->getType();
+                if ($optionType === 'field' || $optionType === 'area' || $optionType === 'date') {
+                    $enteredOptions[] = [
+                        'uid' => $this->uidEncoder->encode("custom-option/$optionId"),
+                        'value' => $options[$optionId],
+                    ];
+                } elseif ($optionType === 'drop_down') {
+                    $optionSelectValues = $customOption->getValues();
+                    $selectedOptions[] = $this->encodeSelectedOption(
+                        (int) $customOption->getOptionId(),
+                        (int) $options[$optionId]
+                    );
+
+                } elseif ($optionType === 'multiple') {
+                    foreach ($options[$optionId] as $multipleOption) {
+                        $selectedOptions[] = $this->encodeSelectedOption(
+                            (int) $customOption->getOptionId(),
+                            (int) $multipleOption
+                        );
+                    }
+                }
+            }
+        }
+
+        $cartItems['selected_options'] = $selectedOptions;
+        $cartItems['entered_options'] = $enteredOptions;
+        return $cartItems;
+    }
+
+    /**
+     * Returns uid of the selected custom option
+     *
+     * @param int $optionId
+     * @param int $optionValueId
+     *
+     * @return string
+     */
+    private function encodeSelectedOption(int $optionId, int $optionValueId): string
+    {
+        return $this->uidEncoder->encode("custom-option/$optionId/$optionValueId");
+    }
+}

app/code/Magento/WishlistGraphQl/Model/CartItems/DownloadableLinkDataProvider.php

@@ -0,0 +1,47 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare (strict_types = 1);
+
+namespace Magento\WishlistGraphQl\Model\CartItems;
+
+use Magento\Wishlist\Model\Item;
+use Magento\Framework\GraphQl\Query\Uid;
+
+/**
+ * Data provider for downloadable product links cart item request
+ */
+class DownloadableLinkDataProvider implements CartItemsRequestDataProviderInterface
+{
+    /** 
+     * @var Uid 
+     */
+    private $uidEncoder;
+
+    /**
+     * @param Uid $uidEncoder
+     */
+    public function __construct(
+        Uid $uidEncoder
+    ) {
+        $this->uidEncoder = $uidEncoder;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(Item $wishlistItem, ?string $sku): array
+    {
+        $buyRequest = $wishlistItem->getBuyRequest();
+        $links = isset($buyRequest['links']) ? $buyRequest['links'] : [];
+        $selectedOptions = [];
+        $cartItems = [];
+        foreach ($links as $linkId) {
+            $selectedOptions[] = $this->uidEncoder->encode("downloadable/$linkId");
+        }
+        $cartItems['selected_options'] = $selectedOptions;
+        return $cartItems;
+    }
+}