Implement commands: cleanup-tags & reset-tags

Fixes nextcloud#127

lib/Command/CleanupTags.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace OCA\Recognize\Command;
+
+use OCA\Recognize\Service\ClassifyImagesService;
+use OCA\Recognize\Service\Logger;
+use OCA\Recognize\Service\TagManager;
+use OCP\IUser;
+use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class CleanupTags extends Command {
+    /**
+     * @var \OCA\Recognize\Service\TagManager
+     */
+    private $tagManager;
+
+
+    public function __construct(TagManager $tagManager) {
+		parent::__construct();
+        $this->tagManager = $tagManager;
+    }
+
+	/**
+	 * Configure the command
+	 *
+	 * @return void
+	 */
+	protected function configure() {
+		$this->setName('recognize:cleanup-tags')
+			->setDescription('Delete all tags that have no files associated with them anymore');
+	}
+
+	/**
+	 * Execute the command
+	 *
+	 * @param InputInterface  $input
+	 * @param OutputInterface $output
+	 *
+	 * @return int
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		try {
+			$this->tagManager->removeEmptyTags();
+		} catch (\Exception $ex) {
+			$output->writeln('<error>Failed to clean up tags</error>');
+			$output->writeln($ex->getMessage());
+			return 1;
+		}
+
+		return 0;
+	}
+}

lib/Command/ResetTags.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace OCA\Recognize\Command;
+
+use OCA\Recognize\Service\ClassifyImagesService;
+use OCA\Recognize\Service\Logger;
+use OCA\Recognize\Service\TagManager;
+use OCP\IUser;
+use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class ResetTags extends Command {
+    /**
+     * @var \OCA\Recognize\Service\TagManager
+     */
+    private $tagManager;
+
+
+    public function __construct(TagManager $tagManager) {
+		parent::__construct();
+        $this->tagManager = $tagManager;
+    }
+
+	/**
+	 * Configure the command
+	 *
+	 * @return void
+	 */
+	protected function configure() {
+		$this->setName('recognize:reset-tags')
+			->setDescription('Remove all tags from previously classified files');
+	}
+
+	/**
+	 * Execute the command
+	 *
+	 * @param InputInterface  $input
+	 * @param OutputInterface $output
+	 *
+	 * @return int
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		try {
+			$this->tagManager->resetClassifications();
+		} catch (\Exception $ex) {
+			$output->writeln('<error>Failed to reset tags</error>');
+			$output->writeln($ex->getMessage());
+			return 1;
+		}
+
+		return 0;
+	}
+}

lib/Service/TagManager.php

@@ -90,7 +90,6 @@ public function resetClassifications(): void {
 			$tagIds = $this->objectMapper->getTagIdsForObjects($id, 'files');
 			$this->objectMapper->unassignTags($id, 'files', $tagIds[$id]);
 		}
-        $this->removeEmptyTags();
 	}
 
     public function removeEmptyTags(): void {

src/components/ViewAdmin.vue

@@ -58,6 +58,13 @@
 			<p>&nbsp;</p>
 			<pre><code>occ recognize:classify-images</code></pre>
 			<pre><code>occ recognize:classify-audio</code></pre>
+			<p>&nbsp;</p>
+			<p>You can reset the tags of all files that have been previously classified by recognize with the following command:</p>
+			<p>&nbsp;</p>
+			<pre><code>occ recognize:reset-tags</code></pre>
+			<p>You can delete all tags that no longer have any files associated with them with the following command:</p>
+			<p>&nbsp;</p>
+			<pre><code>occ recognize:cleanup-tags</code></pre>
 		</SettingsSection>
 		<SettingsSection
 			:title="t('recognize', 'CPU cores') ">