/// <summary>
/// Host app must call this when receiving http request on POST /api/retro/long
/// </summary>
public async Task <LongResponse> HandleHttpLong(LongRequest req)
{
var user = ClientPlex.GetUser(req.SessionKey);
if (user == null)
{
return new LongResponse {
ErrorCode = Constants.ERRCODE_BADUSER
}
}
;
//if there is already something to push, then return now, without any awaiting
var pushGroup = ClientPlex.GetAndClearItemsToPush(req.SessionKey);
if (pushGroup != null)
{
return(PushGroupToLongResponse(user, pushGroup));
}
//wait up to 30s for something to be ready to send to the client
var pollTask = ClientPlex.BeginLongPoll(req.SessionKey);
if (pollTask == null)
{
return new LongResponse {
ErrorCode = Constants.ERRCODE_BADUSER
}
}
;
var timeoutTask = Task.Delay(IntegrationTestMode ? 1 : 30000);
bool timedOut = (await Task.WhenAny(pollTask, timeoutTask) == timeoutTask);
//timeout - empty return
if (timedOut)
{
return(new LongResponse());
}
//send anything that has accumulated
pushGroup = ClientPlex.GetAndClearItemsToPush(req.SessionKey);
if (pushGroup != null)
{
return(PushGroupToLongResponse(user, pushGroup));
}
//nothing to do
return(new LongResponse());
}
