davispeixoto / blog-core

src/BlogCore/Service/CreateTag.php

<?php
/**
 * Created by PhpStorm.
 * User: davis
 * Date: 7/23/17
 * Time: 3:06 AM
 */

namespace DavisPeixoto\BlogCore\Service;


use DavisPeixoto\BlogCore\Entity\Tag;
use DavisPeixoto\BlogCore\Interfaces\ServiceInterface;
use DavisPeixoto\BlogCore\Repository\AbstractTagRepository;
use Exception;
use Psr\Log\LoggerInterface;
use Ramsey\Uuid\UuidInterface;

/**
 * Class CreateTag
 * @package DavisPeixoto\BlogCore\Service
 */
class CreateTag implements ServiceInterface
{
    /**
     * @var AbstractTagRepository
     */
    private $tagRepository;

    /**
     * @var Tag
     */
    private $tag;

    /**
     * @var LoggerInterface
     */
    private $logger;

    /**
     * CreateTag constructor.
     * @param AbstractTagRepository $tagRepository
     * @param Tag $tag
     * @param LoggerInterface $logger
     */
    public function __construct(AbstractTagRepository $tagRepository, Tag $tag, LoggerInterface $logger)
    {
        $this->tagRepository = $tagRepository;
        $this->tag = $tag;
        $this->logger = $logger;
    }

    /**
     * @return UuidInterface|null

Should the return type not be string|null?

     */
    public function run()
    {
        try {
            return $this->tagRepository->save($this->tag);
        } catch (Exception $e) {
            $this->logger->error($e->getMessage());
        }

        return null;
    }
}