public ControllerLogin()
{
_rfidDetector = new RadioFrequency();
View.Authenticate += ViewOnAuthenticate;
// Fill in the RFID tag automatically on scan.
_rfidDetector.Tag += (sender, args) => View.RFID = args.Value;
}
public ControllerScanRFID()
{
rfid = new RadioFrequency();
// Retrieve payment status of scanned Visitor.
rfid.Tag += (sender, args) =>
{
IEnumerable <Visitor> wristbands = Visitor.Select("VISITORCODE = " + args.Value.ToSqlFormat());
// If Visitor doesn't occur in database.
if (!wristbands.Any())
{
// Show unknown Visitor message.
FormMain.Form.Open <ControllerUnknownWristband>();
}
else
{
// Visitor does exist in database.
IEnumerable <Reservation> reservation =
Reservation.Select("RESERVATIONID = " + wristbands.First().ReservationId);
if (reservation.First().PaymentStatus)
{
// if payment status is OK
Visitor visitor = wristbands.First();
if (!visitor.IsOnSite)
{
// User is not yet on site but checkin is successful: access granted, update database to set guest as present (on site).
visitor.IsOnSite = true;
visitor.Update();
FormMain.Form.Open <ControllerLocationDetails>(new KeyValuePair <string, object>("visitor",
wristbands.First()));
}
else
{
// User was already on site but checked out: update database to set guest as away (not on site).
visitor.IsOnSite = false;
visitor.Update();
FormMain.Form.Open <ControllerVisitorExit>();
}
}
// Access denied due to negative payment status.
else
{
FormMain.Form.Open <ControllerAccessDenied>();
}
}
};
}
/// <summary>
/// Returns the <see cref="RadioFrequency"/> and <see cref="RadioModulation"/> as a nice clean string for briefings.
/// </summary>
/// <returns>A string with radio frequency and modulation</returns>
public string GetRadioAsString()
{
return($"{RadioFrequency.ToString("F1", NumberFormatInfo.InvariantInfo)} {RadioModulation}");
}
