CTaskNotifications::setSonetLogRights

static function setSonetLogRights(array $params, array $fields, array $task): void
{
	$logId = (int)$params['LOG_ID'];
	$effectiveUserId = (int)$params['EFFECTIVE_USER_ID'];

	if ($logId <= 0 || $effectiveUserId <= 0)
	{
		return;
	}

	// Get current rights
	$currentRights = [];
	$rightsResult = CSocNetLogRights::getList([], ['LOG_ID' => $logId]);
	while ($right = $rightsResult->fetch())
	{
		$currentRights[] = $right['GROUP_CODE'];
	}

	// If author changes the task and author doesn't have
	// access to task yet, don't give access to him.
	$authorId = (isset($fields['CREATED_BY']) ? (int)$fields['CREATED_BY'] : (int)$task['CREATED_BY']);
	$authorHasAccess = in_array('U'.$authorId, $currentRights, true);
	$authorMustBeExcluded = ($authorId === $effectiveUserId) && !$authorHasAccess;

	$taskParticipants = CTaskNotifications::getRecipientsIDs(
		$fields, // Only new tasks' participiants should view log event, fixed due to http://jabber.bx/view.php?id=34504
		false, // don't exclude current user
		true // exclude additional recipients (because there are previous members of task)
	);
	$logCanViewedBy = ($authorMustBeExcluded ? array_diff($taskParticipants, [$authorId]) : $taskParticipants);
	$logCanViewedBy = array_unique(array_map('intval', array_filter($logCanViewedBy)));
	$newRights = CTaskNotifications::__UserIDs2Rights($logCanViewedBy);

	$oldGroupId = $task['GROUP_ID'];
	$newGroupId = ($fields['GROUP_ID'] ?? null);
	$groupChanged = (isset($newGroupId, $oldGroupId) && $newGroupId && (int)$newGroupId !== (int)$oldGroupId);

	// If rights really changed, update them
	if (
		$groupChanged
		|| !empty(array_diff($currentRights, $newRights))
		|| !empty(array_diff($newRights, $currentRights))
	)
	{
		$groupRights = [];
		if (isset($newGroupId))
		{
			$groupRights = self::prepareRightsCodesForViewInGroupLiveFeed($logId, $newGroupId);
		}
		else if (isset($oldGroupId))
		{
			$groupRights = self::prepareRightsCodesForViewInGroupLiveFeed($logId, $oldGroupId);
		}

		CSocNetLogRights::deleteByLogID($logId);

		foreach ($logCanViewedBy as $userId)
		{
			$code = CTaskNotifications::__UserIDs2Rights([$userId]);
			$follow = !UserOption::isOptionSet($task['ID'], $userId, UserOptionOption::MUTED);

			CSocNetLogRights::add($logId, $code, false, $follow);
		}
		if (!empty($groupRights))
		{
			CSocNetLogRights::add($logId, $groupRights);
		}
	}
}