private async void tryLogin()
{
// attempt connection
using (SqlConnection conn = new SqlConnection(Configuration.CONNECTION_STRING))
{
try
{
// try it
// tell the logger
logger.Info("Attempting connection with database");
logger.Info("Connection string: " + Configuration.CONNECTION_STRING);
await conn.OpenAsync();
}
catch (Exception ex)
{
// it failed
// tell the user and the logger
conn.Close();
string errorMessage = "Error connecting to database: " + ex.Message;
MessageBox.Show(errorMessage, "Retail POS", MessageBoxButtons.OK, MessageBoxIcon.Error);
logger.Error(ex, errorMessage);
button_OK.Enabled = true;
return;
}
switch (await authenticated(conn))
{
case AuthResult.SUCCESS:
// authentication successful
// tell the user and the logger
string authSuccessMessage = "Login successful";
MessageBox.Show(authSuccessMessage, "Retail POS", MessageBoxButtons.OK, MessageBoxIcon.Information);
logger.Info(authSuccessMessage);
// config
Configuration.STAFF_ID = staffID;
// show main form and close this one
MainWindow mainForm = new MainWindow();
this.Hide();
conn.Close();
mainForm.ShowDialog();
logger.Info("Exiting application with Exit Code: " + Environment.ExitCode);
//Application.ExitThread();
//Environment.Exit(Environment.ExitCode);
break;
case AuthResult.NO_USERNAME:
// no such username exists
// tell the user and the logger
string noUsernameMessage = "Username does not exist";
MessageBox.Show(noUsernameMessage, "Retail POS", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
logger.Info(noUsernameMessage);
conn.Close();
button_OK.Enabled = true;
break;
case AuthResult.DENIED:
// authentication failed
// feedback for user
string authFailMessage = "Incorrect password";
MessageBox.Show(authFailMessage, "Retail POS", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
conn.Close();
button_OK.Enabled = true;
break;
}
}
}
