$ops = $request->getParam('args/client_ops');
$hasOps = is_array($ops) && count($ops) > 0;
$op = new Db\Op();
$currentHead = $op->getHeadSeq($esId);
try {
$member->updateActivity($memberId);
} catch (\Exception $e) {
//Db error. Not critical
}
// TODO handle the case ($currentHead == "") && ($seqHead != "")
if ($seqHead == $currentHead) {
// matching heads
if ($hasOps) {
// incoming ops without conflict
// Add incoming ops, respond with a new head
$newHead = Db\Op::addOpsArray($esId, $memberId, $ops);
$response["result"] = 'added';
$response["head_seq"] = $newHead ? $newHead : $currentHead;
} else {
// no incoming ops (just checking for new ops...)
$response["result"] = 'new_ops';
$response["ops"] = array();
$response["head_seq"] = $currentHead;
}
} else {
// HEADs do not match
$response["ops"] = $op->getOpsAfterJson($esId, $seqHead);
$response["head_seq"] = $currentHead;
$response["result"] = $hasOps ? 'conflict' : 'new_ops';
}
$inactiveMembers = $member->updateByTimeout($esId);