/**
* C-o-R pattern
* @param Chain $chain input stream
* @return false|null|true
*/
public function handleRequest(Chain $chain)
{
$request = $chain->getRequest();
$msgParts = explode('|', $request['msg']);
$brCount = 1;
if (!empty($msgParts)) {
$newMsgParts = [];
$brCount = min(self::MAX_BR, count($msgParts));
for ($i = 0; $i < $brCount; $i++) {
$part = trim($msgParts[$i]);
if (!$part) {
continue;
}
$newMsgParts[] = $part;
}
$request['msg'] = implode(self::BR, $newMsgParts);
}
$props = $chain->getUser()->getProperties();
$props->setMessagesCount($props->getMessagesCount() + $brCount);
$chain->setRequest($request);
}