/**
* Get the list of usernames to display in the notification.
*
* 1 user: nameA
* 2 users: nameA and nameB
* 3 users: nameA, nameB and nameC
* 4+ users: nameA, nameB, and 2+ others
*
* @return null|string
*/
protected function getUsernameText()
{
if ($userIds = $this->getFromUserIds()) {
$userIdCount = count($userIds);
$showUsernameCount = $userIdCount > 3 ? 2 : 3;
$usernames = $this->getFromUsernames($showUsernameCount);
if ($userIdCount <= 3) {
$usernameStr = LangHelpers::naturalLanguageImplode($usernames);
} else {
$usernameStr = implode(', ', $usernames);
$remaining = $userIdCount - $showUsernameCount;
$usernameStr .= ', ' . Lang::get('notifications.andothers', ['count' => $remaining]);
}
return $usernameStr;
}
return null;
}
