is::index

static function index($task)
{
	if(!static::includeModule())
	{
		return;
	}

	$tags = '';
	if(is_array($task['SE_TAG']))
	{
		$tags = implode(",", $task['SE_TAG']);
	}
	elseif(is_string($task['SE_TAG']))
	{
		$tags = $task['SE_TAG'];
	}
	elseif(BitrixTasksItemTaskCollectionTag::isA($task['SE_TAG']))
	{
		/** @var BitrixTasksItemTaskCollectionTag $tagCollection */
		$tagCollection = $task['SE_TAG'];
		$tags = $tagCollection->joinNames(',');
	}

	$arSite = array();
	if (
		$task["GROUP_ID"] > 0
		&& Loader::includeModule('socialnetwork')
	)
	{
		// todo: use special socnet helper to get path here
		$path = COption::GetOptionString(
			"tasks",
			"paths_task_group_entry",
			"/workgroups/group/#group_id#/tasks/task/view/#task_id#/",
			$task["SITE_ID"] ?? null
		);
		$path = str_replace("#group_id#", $task["GROUP_ID"], $path);
		$path = str_replace("#task_id#", $task["ID"], $path);

		$groupsSites = BitrixSocialnetworkWorkgroupSiteTable::getList(
			array('filter' => array('GROUP_ID' => $task["GROUP_ID"]))
		)->fetchAll();

		foreach ($groupsSites as $row)
		{
			$arSite[$row['SITE_ID']] = $path;
		}
	}
	else
	{
		$participants = array_unique(
			array_merge(
				array($task["CREATED_BY"], $task["RESPONSIBLE_ID"]),
				$task["ACCOMPLICES"],
				$task["AUDITORS"]
			)
		);
		$usersData = User::getData($participants);

		foreach ($usersData as $data)
		{
			$siteId = $data['LID'];

			if (array_key_exists($siteId, $arSite))
			{
				continue;
			}

			// todo: use special socnet helper to get path here
			$path = COption::GetOptionString(
				"tasks",
				"paths_task_user_entry",
				"/company/personal/user/#user_id#/tasks/task/view/#task_id#/",
				$siteId
			);
			$path = str_replace("#user_id#", $task["RESPONSIBLE_ID"], $path);
			$path = str_replace("#task_id#", $task["ID"], $path);

			$arSite[$siteId] = $path;
		}
	}

	$arSearchIndex = array(
		"LAST_MODIFIED" => $task["CHANGED_DATE"] ? $task["CHANGED_DATE"] : $task["CREATED_DATE"],
		"TITLE" => $task["TITLE"],
		"BODY" => strip_tags($task["DESCRIPTION"] ?? '') ? strip_tags($task["DESCRIPTION"] ?? '') : $task["TITLE"],
		"TAGS" => $tags,
		"SITE_ID" => $arSite,
		"PERMISSIONS" => CTasks::__GetSearchPermissions($task), // todo: move this method here

		// to make ilike feature work
		"ENTITY_TYPE_ID" => "TASK",
		"ENTITY_ID" => $task["ID"]
	);

	$entity_type	= ($task["GROUP_ID"] != 0) ? "G" : "U";
	$entity_name	= ($entity_type == "G") ? "socnet_group" : "socnet_user";
	$entity_id		= ($entity_type == "G") ? $task["GROUP_ID"] : $task["RESPONSIBLE_ID"];
	$feature		= ($entity_type == "G") ? "view": "view_all";

	$arSearchIndex["PARAMS"] = array(
		"feature_id" => "S".$entity_type."_".$entity_id."_tasks_".$feature,
		$entity_name => $entity_id,
	);

	CSearch::Index("tasks", $task["ID"], $arSearchIndex, true);
}