<?php
/**
 * Authserver, an OAuth2-based single-signon authentication provider written in PHP.
 *
 * Copyright (C) $today.date  Lars Vierbergen
 *
 * his program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace vierbergenlars\AuthserverOAuthAccountBundle\EventListener;


use App\Event\TemplateEvent;
use HWI\Bundle\OAuthBundle\Security\OAuthUtils;
use Symfony\Bridge\Doctrine\ManagerRegistry;
use Symfony\Bundle\FrameworkBundle\Templating\TemplateReference;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use User\UserEvents;
use vierbergenlars\AuthserverExternalAccountBundle\Entity\ExternalUser;
use vierbergenlars\AuthserverOAuthAccountBundle\ResourceOwner\ResourceOwnerMap;

class ProfileTemplateListener implements EventSubscriberInterface
{
    /**
     * @var ManagerRegistry
     */
    private $registry;

    /**
     * @var ResourceOwnerMap
     */
    private $resourceOwnerConfig;

    /**
     * @var OAuthUtils
     */
    private $oAuthUtils;

    public function __construct(ManagerRegistry $registry, ResourceOwnerMap $resourceOwnerConfig, OAuthUtils $oAuthUtils)
    {
        $this->registry = $registry;
        $this->resourceOwnerConfig = $resourceOwnerConfig;
        $this->oAuthUtils = $oAuthUtils;
    }

    public static function getSubscribedEvents()
    {
        return [
            UserEvents::USER_PROFILE_VIEW => [
                ['addOAuthAccountsTop', -50],
                ['addOAuthAccounts', -60],
                ['addOAuthAccountsBottom', -70],
            ],
        ];
    }

    public function addOAuthAccountsTop(TemplateEvent $event)
    {
        $event->addTemplate(new TemplateReference('AuthserverOAuthAccountBundle', 'Profile', 'oauth_accounts_top', 'html', 'twig'));
    }


    public function addOAuthAccounts(TemplateEvent $event)
    {
        $externalUsers = $this->registry->getManagerForClass(ExternalUser::class)
            ->getRepository(ExternalUser::class)
            ->findBy([
                'user' => $event->getSubject(),
            ]);

        foreach($this->oAuthUtils->getResourceOwners() as $resourceOwner) {
            /* @var $resourceOwner string */
            $roExternalUsers = array_filter($externalUsers, function(ExternalUser $externalUser) use($resourceOwner) {
                return $externalUser->getProvider() === $resourceOwner;
            });
            $event->addTemplate(new TemplateReference('AuthserverOAuthAccountBundle', 'Profile', 'oauth_account', 'html', 'twig'), [
                'externalUsers' => $roExternalUsers,
                'resourceOwnerConfig' => $this->resourceOwnerConfig[$resourceOwner],
                'resourceOwner' => $resourceOwner,
            ]);
        }
    }

    public function addOAuthAccountsBottom(TemplateEvent $event)
    {
        $event->addTemplate(new TemplateReference('AuthserverOAuthAccountBundle', 'Profile', 'oauth_accounts_bottom', 'html', 'twig'));
    }

}