async Task StartChecking()
{
Dispatcher.Invoke(() =>
{
lblRegestrationStatus.Content = "Unknown";
lblRegestrationStatus.Foreground = Brushes.Orange;
});
_user = await RegnewUser.Login(Dispatcher.Invoke(() => txtUserName.Text), Dispatcher.Invoke(() => txtPassword.Password), false);
if (_user is null)
{
Dispatcher.Invoke(() => MessageBox.Show("CANT LOGIN.", "FATAL ERROR", MessageBoxButton.OK, MessageBoxImage.Error));
StopProcess();
}
await Dispatcher.Invoke(async() =>
{
_lstClassesModels.Clear();
USchedule schedule = await USchedule.FromFile(txtSchedulePath.Text);
foreach (var cls in schedule.Classes.OrderByDescending(c => c.Capacity - c.NumberOfRegisteredStudents))
{
var classModel = new UClassClassesListModel(cls)
{
Status = "Waiting",
StatusForegroundBrush = Brushes.Black
};
_lstClassesModels.Add(classModel);
}
});
_regestrationStatusTimer = new Timer(RegestrationStatusTimerCallback, null, TimeSpan.Zero, tmeDelay.Value.Value);
}
async Task <bool> VerfiyInfo()
{
//verify that all fields are entered
if (string.IsNullOrWhiteSpace(txtUserName.Text))
{
MessageBox.Show("Please enter your username.", "Missing Data", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
if (string.IsNullOrWhiteSpace(txtPassword.Password))
{
MessageBox.Show("Please enter your password.", "Missing Data", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
if (string.IsNullOrWhiteSpace(txtSchedulePath.Text))
{
MessageBox.Show("Please enter your schedule path.", "Missing Data", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
if (tmeDelay.Value == null)
{
MessageBox.Show("Please the delay between checks.", "Missing Data", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
//login
var testUser = await RegnewUser.Login(txtUserName.Text, txtPassword.Password, false);
if (testUser is null)
{
MessageBox.Show("Invalid username or password.\r\nIn case you are sure about your username and password please login from the browser then try again.", "Can't login", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
//verify the existinse and validity of the schedule
try
{
USchedule testSchedule = await USchedule.FromFile(txtSchedulePath.Text);
}
catch (FileNotFoundException)
{
MessageBox.Show("Schedule file doesn't exist.", "Invalid Path", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
catch (Exception)
{
MessageBox.Show("Corrupt Schedule file.", "Corrupt File", MessageBoxButton.OK, MessageBoxImage.Error);
return(false);
}
//verify that the delay is not more than 5000ms
if (tmeDelay.Value.Value.TotalMilliseconds > 5000 &&
MessageBox.Show("The delay between the checks is too large.\r\nDo you want to proceed ?",
"Propably Invalid Data", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.No)
{
return(false);
}
return(true);
}