<?php
/**
 * MageSpecialist
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to info@magespecialist.it so we can send you a copy immediately.
 *
 * @category   MSP
 * @package    MSP_TwoFactorAuth
 * @copyright  Copyright (c) 2017 Skeeller srl (http://www.magespecialist.it)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

namespace MSP\TwoFactorAuth\Controller\Adminhtml\U2f;

use Magento\Backend\Model\Auth\Session;
use Magento\Backend\App\Action;
use Magento\Framework\View\Result\PageFactory;
use MSP\TwoFactorAuth\Api\TfaInterface;
use MSP\TwoFactorAuth\Api\UserConfigManagerInterface;
use MSP\TwoFactorAuth\Controller\Adminhtml\AbstractAction;
use MSP\TwoFactorAuth\Model\Provider\Engine\U2fKey;

/**
 * @SuppressWarnings(PHPMD.CamelCaseMethodName)
 */
class Auth extends AbstractAction
{
    /**
     * @var TfaInterface
     */
    private $tfa;

    /**
     * @var Session
     */
    private $session;

    /**
     * @var PageFactory
     */
    private $pageFactory;

    /**
     * @var UserConfigManagerInterface
     */
    private $userConfigManager;

    public function __construct(
        Action\Context $context,
        Session $session,
        PageFactory $pageFactory,
        UserConfigManagerInterface $userConfigManager,
        TfaInterface $tfa
    ) {
        parent::__construct($context);
        $this->tfa = $tfa;
        $this->session = $session;
        $this->pageFactory = $pageFactory;
        $this->userConfigManager = $userConfigManager;
    }

    /**
     * Get current user
     * @return \Magento\User\Model\User|null
     */
    private function getUser()
    {
        return $this->session->getUser();
    }

    public function execute()
    {
        $this->userConfigManager->setDefaultProvider($this->getUser()->getId(), U2fKey::CODE);
        return $this->pageFactory->create();
    }

    /**
     * Check if admin has permissions to visit related pages
     *
     * @return bool
     */
    protected function _isAllowed()
    {
        $user = $this->getUser();

        return
            $user &&
            $this->tfa->getProviderIsAllowed($this->getUser()->getId(), U2fKey::CODE) &&
            $this->tfa->getProvider(U2fKey::CODE)->isActive($this->getUser()->getId());
    }
}