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Projector.php
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Projector.php
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<?php
/**
* This file is part of the todocler package.
*
* (C) Alan Gabriel Bem <alan.bem@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Users\Application\Projector\RegisteredUsers;
use Doctrine\ORM\EntityManagerInterface;
use Shared\Application\Projector\Doctrine;
use Streak\Domain\Event;
use Streak\Domain\EventStore;
use Streak\Domain\Query;
use Streak\Domain\QueryHandler;
use Users\Application\Projector\RegisteredUsers\Doctrine\Entity\RegisteredUser;
use Users\Application\Query as Queries;
use Users\Domain\Event as Events;
/**
* @author Alan Gabriel Bem <alan.bem@gmail.com>
*
* @see \Users\Application\Projector\RegisteredUsers\ProjectorTest
* @see \Users\Application\Projector\RegisteredUsers\Projector\Factory
*/
final class Projector extends Doctrine\EntityManagerProjector implements Event\Picker, QueryHandler
{
use Query\Handling;
public function __construct(Projector\Id $id, EntityManagerInterface $manager)
{
parent::__construct($id, $manager);
}
public function onUserRegistered(Events\UserRegistered $event) : void
{
$registered = $this->handleIsUserRegistered(new Queries\IsUserRegistered($event->email()));
if ($registered) {
return; // user already exists, we could write that uuid & email to some kind of reporting table with conflicts
}
$user = new RegisteredUser($event->userId(), $event->email(), $event->passwordHash(), $event->registeredAt());
$this->manager->persist($user);
}
public function handleFindUser(Queries\FindUser $query) : ?RegisteredUser
{
$repository = $this->manager->getRepository(RegisteredUser::class);
return $repository->findOneBy(['email' => $query->email()]);
}
public function handleIsUserRegistered(Queries\IsUserRegistered $query) : bool
{
return null !== $this->handleFindUser(new Queries\FindUser($query->email()));
}
public function pick(EventStore $store) : Event\Envelope
{
return $store->stream()->first(); // start listening from the first event in event store
}
}