TagConverter::run

private function run(): string
{
	if (!Loader::includeModule('tasks'))
	{
		$this->convertDone();
		return '';
	}

	$oldTags = $this->getOldList();

	if (empty($oldTags))
	{
		$this->convertDone();
		return '';
	}

	$taskTagRelations = [];

	foreach ($oldTags as $tag)
	{
		$id = $this->getIdInLabelTable($tag);
		if (is_null($id))
		{
			try
			{
				$result = LabelTable::add([
					'NAME' => trim($tag['NAME']),
					'USER_ID' => (int)$tag['GROUP_ID'] === 0 ? $tag['USER_ID'] : 0,
					'GROUP_ID' => $tag['GROUP_ID'],
				]);
			}
			catch (Exception $e)
			{
				(new Log())->collect("Unable to convert tag {$tag['NAME']}: {$e->getMessage()}");
				continue;
			}

			$id = $result->isSuccess() ? $result->getId() : null;
		}

		if (!is_null($id))
		{
			$taskTagRelations[] = [
				'TAG_ID' => $id,
				'TASK_ID' => $tag['TASK_ID'],
			];
		}
	}

	try
	{
		$this->saveRelations($taskTagRelations);
		$this->markTagsAsConverted($oldTags);
	}
	catch (Exception $e)
	{
		(new Log())->collect("Unable to convert tags: {$e->getMessage()}");
		return '';
	}

	if ($this->needToStop())
	{
		$this->convertDone();
		return '';
	}

	Option::set('tasks', self::OPTION_KEY, 'process', '-');

	return self::getAgentName();
}