Added Create and Delete tag actions

module/Core/src/Service/Tag/TagService.php

@@ -2,11 +2,16 @@
 namespace Shlinkio\Shlink\Core\Service\Tag;
 
 use Acelaya\ZsmAnnotatedServices\Annotation as DI;
+use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\EntityManagerInterface;
 use Shlinkio\Shlink\Core\Entity\Tag;
+use Shlinkio\Shlink\Core\Repository\TagRepository;
+use Shlinkio\Shlink\Core\Util\TagManagerTrait;
 
 class TagService implements TagServiceInterface
 {
+    use TagManagerTrait;
+
     /**
      * @var EntityManagerInterface
      */
@@ -31,4 +36,29 @@ class TagService implements TagServiceInterface
     {
         return $this->em->getRepository(Tag::class)->findBy([], ['name' => 'ASC']);
     }
+
+    /**
+     * @param array $tagNames
+     * @return void
+     */
+    public function deleteTags(array $tagNames)
+    {
+        /** @var TagRepository $repo */
+        $repo = $this->em->getRepository(Tag::class);
+        $repo->deleteByName($tagNames);
+    }
+
+    /**
+     * Provided a list of tag names, creates all that do not exist yet
+     *
+     * @param string[] $tagNames
+     * @return Collection|Tag[]
+     */
+    public function createTags(array $tagNames)
+    {
+        $tags = $this->tagNamesToEntities($this->em, $tagNames);
+        $this->em->flush();
+
+        return $tags;
+    }
 }

module/Core/src/Service/Tag/TagServiceInterface.php

@@ -1,6 +1,7 @@
 <?php
 namespace Shlinkio\Shlink\Core\Service\Tag;
 
+use Doctrine\Common\Collections\Collection;
 use Shlinkio\Shlink\Core\Entity\Tag;
 
 interface TagServiceInterface
@@ -9,4 +10,18 @@ interface TagServiceInterface
      * @return Tag[]
      */
     public function listTags();
+
+    /**
+     * @param string[] $tagNames
+     * @return void
+     */
+    public function deleteTags(array $tagNames);
+
+    /**
+     * Provided a list of tag names, creates all that do not exist yet
+     *
+     * @param string[] $tagNames
+     * @return Collection|Tag[]
+     */
+    public function createTags(array $tagNames);
 }