/**
* Try to connect to a helpDesk after a client joined
* Online available helpdesks will be assigned to new client.
* New client will be pushed to the pending client queue for waiting if no available helpdesks
* @param array $client the client information, containing openId, nick, avatar
* @param MongoId $accountId the account UUID
* @return array ['status': 'fail'] or ['status': 'ok', 'helpDesk':'...', 'channel':'....', 'coversationId':'...']
*/
public static function connect($client, $accountId)
{
if ($targetDeskId = self::hasVIPDesk($client, $accountId)) {
return self::createConnection($client, $targetDeskId, $accountId);
} else {
if ($targetDeskId = self::getLastestDesk($client, $accountId)) {
return self::createConnection($client, $targetDeskId, $accountId);
} else {
$conversations = Yii::$app->cache->get('conversations' . $accountId);
if ($conversations) {
$minClientsCount = HelpDeskSetting::getMaxClientCount($accountId);
$targetDeskId = null;
foreach ($conversations as $deskId => &$clientList) {
$currentCount = count($clientList);
if ($currentCount < $minClientsCount) {
$minClientsCount = $currentCount;
$targetDeskId = $deskId;
}
}
if (!empty($targetDeskId)) {
return self::createConnection($client, $targetDeskId, $accountId);
} else {
//push the client into pending clients's queue
PendingClient::enQueue($client);
self::sendSystemReplyByType($client, $accountId, HelpDeskSetting::REPLY_WAITTING);
return ['status' => 'failed', 'channel' => ChatConversation::CHANNEL_GLOBAL . $accountId, 'client' => $client];
}
} else {
//push the client into pending clients's queue
PendingClient::enQueue($client);
self::sendSystemReplyByType($client, $accountId, HelpDeskSetting::REPLY_WAITTING);
}
}
}
}
