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Versionner.php
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Versionner.php
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<?php
namespace Pushword\Version;
use Doctrine\Bundle\DoctrineBundle\Attribute\AsDoctrineListener;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Event\PostPersistEventArgs;
use Doctrine\ORM\Event\PostUpdateEventArgs;
use Doctrine\ORM\Events;
use Pushword\Core\Entity\PageInterface;
// use Doctrine\ORM\Event\LifecycleEventArgs;
use Pushword\Core\Repository\Repository;
use Pushword\Core\Utils\Entity;
use function Safe\file_get_contents;
use function Safe\scandir;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;
use Symfony\Component\Serializer\SerializerInterface;
#[AsDoctrineListener(event: Events::postPersist)]
#[AsDoctrineListener(event: Events::postUpdate)]
class Versionner
{
private readonly Filesystem $fileSystem;
public static bool $version = true;
/**
* @param class-string<PageInterface> $pageClass
*/
public function __construct(
private readonly string $logDir,
private readonly string $pageClass,
private readonly EntityManagerInterface $entityManager,
private readonly SerializerInterface $serializer
) {
$this->fileSystem = new Filesystem();
}
public function postPersist(PostPersistEventArgs $lifecycleEventArgs): void
{
$this->postUpdate($lifecycleEventArgs);
}
public function postUpdate(PostPersistEventArgs|PostUpdateEventArgs $lifecycleEventArgs): void
{
if (! static::$version) {
return;
}
$entity = $lifecycleEventArgs->getObject();
if (! $entity instanceof PageInterface) {
return;
}
$this->createVersion($entity);
}
private function createVersion(PageInterface $page): void
{
$versionFile = $this->getVersionFile($page);
$jsonContent = $this->serializer
->serialize($page, 'json', [AbstractNormalizer::ATTRIBUTES => $this->getProperties($page)]);
$this->fileSystem->dumpFile($versionFile, $jsonContent);
}
public function loadVersion(string $pageId, string $version): void
{
static::$version = false;
$page = Repository::getPageRepository($this->entityManager, $this->pageClass)->findOneBy(['id' => $pageId]);
if (! $page instanceof PageInterface) {
throw new \Exception('Page not found `'.$pageId.'`');
}
$this->populate($page, $version);
$this->entityManager->flush();
static::$version = true;
}
public function populate(PageInterface $page, string $version, ?int $pageId = null): PageInterface
{
$pageVersionned = $this->getPageVersion($pageId ?? $page, $version);
$this->serializer->deserialize($pageVersionned, $page::class, 'json', [AbstractNormalizer::OBJECT_TO_POPULATE => $page]);
return $page;
}
private function getPageVersion(int|PageInterface $page, string $version): string
{
$versionFile = $this->getVersionFile($page, $version);
return file_get_contents($versionFile);
}
public function reset(int|PageInterface $pageId): void
{
$this->fileSystem->remove($this->getVersionDir($pageId));
}
/**
* @return string[]
*/
public function getPageVersions(int|PageInterface $page): array
{
$dir = $this->getVersionDir($page);
if (! file_exists($dir)) {
return [];
}
/** @var string[] */
$scandir = scandir($dir);
$versions = array_filter($scandir, static fn (string $item): bool => ! \in_array($item, ['.', '..'], true));
return array_values($versions);
}
private function getVersionDir(int|PageInterface $page): string
{
$pageId = ($page instanceof PageInterface ? (string) $page->getId() : $page);
return $this->logDir.'/version/'.$pageId;
}
private function getVersionFile(int|PageInterface $page, ?string $version = null): string
{
return $this->getVersionDir($page).'/'.($version ?? uniqid());
}
/**
* @return array<string>
*/
private function getProperties(PageInterface $page): array
{
return Entity::getProperties($page);
}
}