//[AuthorizeJwt(GuardianApplicationRole.ZoneServer)] //TODO: Eventually we'll need to auth these zoneservers.
public async Task <IActionResult> RegisterZoneServer([FromBody] ZoneServerRegisterationRequest registerationRequest,
[FromServices] IZoneInstanceWorkQueue instanceWorkQueue, [FromServices] IZoneServerRepository zoneRepo)
{
//TODO: JSON
if (!ModelState.IsValid)
{
return(BadRequest());
}
//Conceptually, just because there is no work doesn't mean this is an error
//Requesting users who were trying to make an instance could have abandoned that request.
//Instances may eventually free themselves after inactivity and attempt to reregister instead of shutting down at first
//So we just want to say "Nothing to do right now" so they can sleep and maybe manually shutdown after a timeout period.
if (instanceWorkQueue.isEmpty)
{
return(NoWorkForInstanceResponse());
}
//The specification says this could complete immediately
//with null if no works exists, there is technically a data race condition between checking isEmpty
//and trying to dequeue so the result may not be predictible.
ZoneInstanceWorkEntry zoneInstanceWorkEntry = await instanceWorkQueue.DequeueAsync()
.ConfigureAwait(false);
//TODO: If anything here fails after dequeueing we could lose CRITICAL data to keep things running
//We need VERY good failure handling, and to reenter this work request into the queue somehow.
//Otherwise the request for the instance will be lost and unhandled forever.
ProjectVersionStage.AssertAlpha();
if (zoneInstanceWorkEntry == null)
{
return(NoWorkForInstanceResponse());
}
//TODO: Validate endpoint
//Since there IS work to do, we can't just tell the zone instance
//We must register it into the zone server repo
if (!await zoneRepo.TryCreateAsync(new ZoneInstanceEntryModel(registerationRequest.ZoneServerEndpoint.EndpointAddress, (short)registerationRequest.ZoneServerEndpoint.EndpointPort, zoneInstanceWorkEntry.WorldId)))
{
//As stated above, we need good handling for this else
//we will encounter MAJOR issues.
return(NoWorkForInstanceResponse());
}
//Success
return(Ok(new ZoneServerRegisterationResponse(zoneInstanceWorkEntry.WorldId)));
}
/// <inheritdoc />
public async Task <ZoneServerRegisterationResponse> RegisterZoneServer(ZoneServerRegisterationRequest request)
{
return(await(await GetService().ConfigureAwait(false)).RegisterZoneServer(request).ConfigureAwait(false));
}
