/**
* Creates and persists a unique shortcode generated for provided url
*
* @param UriInterface $url
* @param string[] $tags
* @return string
* @throws InvalidUrlException
* @throws RuntimeException
*/
public function urlToShortCode(UriInterface $url, array $tags = [])
{
// If the url already exists in the database, just return its short code
$shortUrl = $this->em->getRepository(ShortUrl::class)->findOneBy(['originalUrl' => $url]);
if (isset($shortUrl)) {
return $shortUrl->getShortCode();
}
// Check that the URL exists
$this->checkUrlExists($url);
// Transactionally insert the short url, then generate the short code and finally update the short code
try {
$this->em->beginTransaction();
// First, create the short URL with an empty short code
$shortUrl = new ShortUrl();
$shortUrl->setOriginalUrl($url);
$this->em->persist($shortUrl);
$this->em->flush();
// Generate the short code and persist it
$shortCode = $this->convertAutoincrementIdToShortCode($shortUrl->getId());
$shortUrl->setShortCode($shortCode)->setTags($this->tagNamesToEntities($this->em, $tags));
$this->em->flush();
$this->em->commit();
return $shortCode;
} catch (ORMException $e) {
if ($this->em->getConnection()->isTransactionActive()) {
$this->em->rollback();
$this->em->close();
}
throw new RuntimeException('An error occurred while persisting the short URL', -1, $e);
}
}
/**
* @test
*/
public function shortCodeIsProperlyParsed()
{
// 12C1c -> 10
$shortCode = '12C1c';
$shortUrl = new ShortUrl();
$shortUrl->setShortCode($shortCode)->setOriginalUrl('expected_url');
$repo = $this->prophesize(ObjectRepository::class);
$repo->findOneBy(['shortCode' => $shortCode])->willReturn($shortUrl);
$this->em->getRepository(ShortUrl::class)->willReturn($repo->reveal());
$this->assertFalse($this->cache->contains($shortCode . '_longUrl'));
$url = $this->urlShortener->shortCodeToUrl($shortCode);
$this->assertEquals($shortUrl->getOriginalUrl(), $url);
$this->assertTrue($this->cache->contains($shortCode . '_longUrl'));
}
