MessageService::fillContextPaginationData

public function fillContextPaginationData(array $rest, MessageCollection $messages, int $range): array
{
	$rest['hasPrevPage'] = $this->getCountHigherMessages($messages, $this->message->getId() ?? 0) >= $range;
	$lastSelectedId = $this->getLastSelectedId($messages);
	$lastMessageIdInChat = $this->message->getChat()->getLastMessageId();
	$rest['hasNextPage'] = $lastSelectedId > 0 && $lastMessageIdInChat > 0 && $lastSelectedId < $lastMessageIdInChat;

	return $rest;
}