public static async Task <CancelEnrollmentResult> CancelEnrollment()
{
if (CurrentStudent == null)
{
return(null);
}
if (RequestStatus == null)
{
return(null);
}
if (Server == null)
{
await FindServer();
}
if (Server == null)
{
return(null);
}
var request = new CancelEnrollment()
{
StudentId = CurrentStudent.Id,
RequestId = RequestStatus.Id,
};
CancelEnrollmentResult result = null;
NetworkComms.AppendGlobalIncomingPacketHandler <CancelEnrollmentResult>(CancelEnrollmentResult.GetHeader(),
(h, c, i) =>
{
NetworkComms.RemoveGlobalIncomingPacketHandler(CancelEnrollmentResult.GetHeader());
if (i.Success)
{
RequestStatus.IsSubmitted = false;
}
result = i;
});
await request.Send(new IPEndPoint(IPAddress.Parse(Server.IP), Server.Port));
var start = DateTime.Now;
while ((DateTime.Now - start).TotalSeconds < 17)
{
if (result != null)
{
return(result);
}
await Task.Delay(TimeSpan.FromSeconds(1));
}
Server = null;
NetworkComms.RemoveGlobalIncomingPacketHandler(CancelEnrollmentResult.GetHeader());
return(null);
}
public static void Start()
{
if (_started)
{
return;
}
_started = true;
NetworkComms.DisableLogging();
var serializer = DPSManager.GetDataSerializer <ProtobufSerializer>();
NetworkComms.DefaultSendReceiveOptions = new SendReceiveOptions(serializer,
NetworkComms.DefaultSendReceiveOptions.DataProcessors, NetworkComms.DefaultSendReceiveOptions.Options);
PeerDiscovery.EnableDiscoverable(PeerDiscovery.DiscoveryMethod.UDPBroadcast);
NetworkComms.AppendGlobalIncomingPacketHandler <AndroidInfo>(AndroidInfo.GetHeader(), AndroidHandler.HandShakeHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <StudentInfoRequest>(StudentInfoRequest.GetHeader(), AndroidHandler.StudentInfoRequested);
NetworkComms.AppendGlobalIncomingPacketHandler <EndPointInfo>(EndPointInfo.GetHeader(), HandShakeHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <GetWork>(GetWork.GetHeader(), GetWorkHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <Login>(Login.GetHeader(), LoginHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <Logout>(Logout.GetHeader(), LogoutHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <SchedulesRequest>(SchedulesRequest.GetHeader(), AndroidHandler.ScheduleRequestHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <EnrollRequest>(EnrollRequest.GetHeader(), AndroidHandler.EnrollRequestHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <RegisterStudent>(RegisterStudent.GetHeader(), AndroidHandler.RegisterStudentHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <SaveWork>(SaveWork.GetHeader(), SaveWorkHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <GetCourses>(GetCourses.GetHeader(), AndroidHandler.GetCoursesHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <GetCoursesDesktop>(GetCoursesDesktop.GetHeader(), GetCoursesHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <Pong>(Pong.GetHeader(), PongHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <EnrollStudent>(EnrollStudent.GetHeader(), EnrollStudentHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <StartEnrollment>(StartEnrollment.GetHeader(), AndroidHandler.StartEnrollmentHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <AddSchedule>(AddSchedule.GetHeader(), AndroidHandler.AddScheduleHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <CommitEnrollment>(CommitEnrollment.GetHeader(), AndroidHandler.CommitEnrollmentHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <StatusRequest>(StatusRequest.GetHeader(), AndroidHandler.StatusRequestHandler);
NetworkComms.AppendGlobalIncomingPacketHandler <CancelEnrollment>(CancelEnrollment.GetHeader(), AndroidHandler.CancelEnrollmentHandler);
// try
// {
Connection.StartListening(ConnectionType.UDP, new IPEndPoint(IPAddress.Any, 0), true);
// }
// catch (Exception e)
// {
//
// }
}
public static async void CancelEnrollmentHandler(PacketHeader packetheader, Connection connection, CancelEnrollment req)
{
var dev = AndroidDevice.Cache.FirstOrDefault(
d => d.IP == ((IPEndPoint)connection.ConnectionInfo.RemoteEndPoint).Address.ToString());
//Maybe do not ignore this on production
if (dev == null)
{
return;
}
var student = Models.Student.Cache.FirstOrDefault(x => x.Id == req.StudentId);
var request = Models.Request.Cache.FirstOrDefault(x => x.Id == req.RequestId);
if (student == null || request == null)
{
return;
}
request.Update(nameof(Models.Request.Submitted), false);
await new CancelEnrollmentResult()
{
Success = true,
}.Send(new IPEndPoint(IPAddress.Parse(dev.IP), dev.Port));
}