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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                declare(strict_types=1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Shlinkio\Shlink\Core\Service;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Doctrine\ORM\EntityManagerInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Entity\ShortUrl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Exception\InvalidUrlException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Exception\NonUniqueSlugException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Model\ShortUrlMeta;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Repository\ShortUrlRepositoryInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Service\ShortUrl\ShortCodeHelperInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\ShortUrl\Resolver\ShortUrlRelationResolverInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Util\TagManagerTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Shlinkio\Shlink\Core\Util\UrlValidatorInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Throwable;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class UrlShortener implements UrlShortenerInterface  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    use TagManagerTrait;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private EntityManagerInterface $em;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private UrlValidatorInterface $urlValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private ShortUrlRelationResolverInterface $relationResolver;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private ShortCodeHelperInterface $shortCodeHelper;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        UrlValidatorInterface $urlValidator,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        EntityManagerInterface $em,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ShortUrlRelationResolverInterface $relationResolver,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ShortCodeHelperInterface $shortCodeHelper  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->urlValidator = $urlValidator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->em = $em;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->relationResolver = $relationResolver;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->shortCodeHelper = $shortCodeHelper;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string[] $tags  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws NonUniqueSlugException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws InvalidUrlException  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @throws Throwable  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function shorten(string $url, array $tags, ShortUrlMeta $meta): ShortUrl  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // First, check if a short URL exists for all provided params  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $existingShortUrl = $this->findExistingShortUrlIfExists($url, $tags, $meta);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($existingShortUrl !== null) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $existingShortUrl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->urlValidator->validateUrl($url, $meta->doValidateUrl());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->em->transactional(function () use ($url, $tags, $meta) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $shortUrl = new ShortUrl($url, $meta, $this->relationResolver);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $shortUrl->setTags($this->tagNamesToEntities($this->em, $tags));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->verifyShortCodeUniqueness($meta, $shortUrl);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->em->persist($shortUrl);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $shortUrl;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        });  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    private function findExistingShortUrlIfExists(string $url, array $tags, ShortUrlMeta $meta): ?ShortUrl  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (! $meta->findIfExists()) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        /** @var ShortUrlRepositoryInterface $repo */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $repo = $this->em->getRepository(ShortUrl::class);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $repo->findOneMatching($url, $tags, $meta);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function verifyShortCodeUniqueness(ShortUrlMeta $meta, ShortUrl $shortUrlToBeCreated): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $couldBeMadeUnique = $this->shortCodeHelper->ensureShortCodeUniqueness(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $shortUrlToBeCreated,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $meta->hasCustomSlug(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (! $couldBeMadeUnique) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $domain = $shortUrlToBeCreated->getDomain();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $domainAuthority = $domain !== null ? $domain->getAuthority() : null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw NonUniqueSlugException::fromSlug($shortUrlToBeCreated->getShortCode(), $domainAuthority);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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