<?php
/**
 * Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
namespace Amazon\Login\Observer;

use Amazon\Core\Helper\Data;
use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Stdlib\Cookie\CookieMetadataFactory;
use Magento\Framework\Stdlib\CookieManagerInterface;

class SetAuthorizeErrorCookie implements ObserverInterface
{
    const LOGIN_AUTHORIZE_ERROR_COOKIE = 'amz_auth_err';

    /**
     * @var CookieManagerInterface
     */
    private $cookieManager;

    /**
     * @var CookieMetadataFactory
     */
    private $cookieMetadataFactory;

    /**
     * @var Data
     */
    private $coreHelper;

    /**
     * @param CookieManagerInterface $cookieManager
     * @param CookieMetadataFactory $cookieMetadataFactory
     * @param Data $coreHelper
     */
    public function __construct(
        CookieManagerInterface $cookieManager,
        CookieMetadataFactory $cookieMetadataFactory,
        Data $coreHelper
    ) {
        $this->cookieManager         = $cookieManager;
        $this->cookieMetadataFactory = $cookieMetadataFactory;
        $this->coreHelper            = $coreHelper;
    }

    /**
     * {@inheritdoc}
     */
    public function execute(Observer $observer)
    {
        if ($this->coreHelper->isLwaEnabled()) {
            $cookieMeta = $this->cookieMetadataFactory
                               ->createPublicCookieMetadata()
                               ->setDurationOneYear()
                               ->setPath('/')
                               ->setHttpOnly(false); // JS-accessible

            $this->cookieManager->setPublicCookie(self::LOGIN_AUTHORIZE_ERROR_COOKIE, '1', $cookieMeta);
        }
    }
}