Created services and command to process visits

module/Core/src/Service/VisitService.php

@@ -0,0 +1,45 @@
+<?php
+namespace Shlinkio\Shlink\Core\Service;
+
+use Acelaya\ZsmAnnotatedServices\Annotation\Inject;
+use Doctrine\ORM\EntityManagerInterface;
+use Shlinkio\Shlink\Core\Entity\Visit;
+use Shlinkio\Shlink\Core\Repository\VisitRepository;
+
+class VisitService implements VisitServiceInterface
+{
+    /**
+     * @var EntityManagerInterface
+     */
+    private $em;
+
+    /**
+     * VisitService constructor.
+     * @param EntityManagerInterface $em
+     *
+     * @Inject({"em"})
+     */
+    public function __construct(EntityManagerInterface $em)
+    {
+        $this->em = $em;
+    }
+
+    /**
+     * @return Visit[]
+     */
+    public function getUnlocatedVisits()
+    {
+        /** @var VisitRepository $repo */
+        $repo = $this->em->getRepository(Visit::class);
+        return $repo->findUnlocatedVisits();
+    }
+
+    /**
+     * @param Visit $visit
+     */
+    public function saveVisit(Visit $visit)
+    {
+        $this->em->persist($visit);
+        $this->em->flush();
+    }
+}