Remove.php

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<?php
namespace Magento\Wishlist\Controller\Index;

use Magento\Framework\App\Action;
use Magento\Framework\Data\Form\FormKey\Validator;
use Magento\Framework\Exception\NotFoundException;
use Magento\Framework\Controller\ResultFactory;
use Magento\Wishlist\Controller\WishlistProviderInterface;
use Magento\Wishlist\Model\Item;
use Magento\Wishlist\Model\Product\AttributeValueProvider;

class Remove extends \Magento\Wishlist\Controller\AbstractIndex
{
    protected $wishlistProvider;

    protected $formKeyValidator;

    private $attributeValueProvider;

    public function __construct(
        Action\Context $context,
        WishlistProviderInterface $wishlistProvider,
        Validator $formKeyValidator,
        AttributeValueProvider $attributeValueProvider = null
    ) {
        $this->wishlistProvider = $wishlistProvider;
        $this->formKeyValidator = $formKeyValidator;
        $this->attributeValueProvider = $attributeValueProvider
            ?: \Magento\Framework\App\ObjectManager::getInstance()->get(AttributeValueProvider::class);
        parent::__construct($context);
    }

    public function execute()
    {
        $resultRedirect = $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
        if (!$this->formKeyValidator->validate($this->getRequest())) {
            return $resultRedirect->setPath('*/*/');
        }

        $id = (int)$this->getRequest()->getParam('item');
        $item = $this->_objectManager->create(Item::class)->load($id);
        if (!$item->getId()) {
            throw new NotFoundException(__('Page not found.'));
        }
        $wishlist = $this->wishlistProvider->getWishlist($item->getWishlistId());
        if (!$wishlist) {
            throw new NotFoundException(__('Page not found.'));
        }
        try {
            $item->delete();
            $wishlist->save();
            $productName = $this->attributeValueProvider
                ->getRawAttributeValue($item->getProductId(), 'name');
            $this->messageManager->addComplexSuccessMessage(
                'removeWishlistItemSuccessMessage',
                [
                    'product_name' => $productName,
                ]
            );
        } catch (\Magento\Framework\Exception\LocalizedException $e) {
            $this->messageManager->addError(
                __('We can\'t delete the item from Wish List right now because of an error: %1.', $e->getMessage())
            );
        } catch (\Exception $e) {
            $this->messageManager->addError(__('We can\'t delete the item from the Wish List right now.'));
        }

        $this->_objectManager->get(\Magento\Wishlist\Helper\Data::class)->calculate();
        $refererUrl = $this->_redirect->getRefererUrl();
        if ($refererUrl) {
            $redirectUrl = $refererUrl;
        } else {
            $redirectUrl = $this->_redirect->getRedirectUrl($this->_url->getUrl('*/*'));
        }
        $resultRedirect->setUrl($redirectUrl);
        return $resultRedirect;
    }
}