private void Initialize(bool isToReloadBiometrics)
{
_student = new Data.Student();
_biometric = new Biometric();
_relBiometric = new RelBiometric();
_attendance = new Attendance();
_IsFingerEnrolled = false;
_Verificator = new DPFP.Verification.Verification(); // Create a fingerprint template verificator
if (isToReloadBiometrics)
{
_Biometrics = _biometricsRepository.GetBiometrics(); //Load all FingerPrintTemplate (fpt);
Remarks = (_Biometrics.Count == 0) ? "No fingerprint template available in our records." : "";
}
Student.ImageData = null;
if (smsTimer == null)
{
smsTimer = new Timer(1000 * 60 * 60);
smsTimer.Elapsed += new ElapsedEventHandler(OnSMSTimerEvent);
smsTimer.Start();
}
}
public RelBiometric AddRelBiometric(RelBiometric relBiometric)
{
using (_context = ConnectionHelper.CreateConnection())
{
_context.RelBiometrics.Add(relBiometric);
_context.SaveChanges();
return(relBiometric);
}
}
public RelBiometric UpdateRelBiometric(RelBiometric RelBiometric)
{
using (_context = ConnectionHelper.CreateConnection())
{
if (!_context.RelBiometrics.Local.Any(r => r.RelBiometricID == RelBiometric.RelBiometricID))
{
_context.RelBiometrics.Attach(RelBiometric);
}
_context.Entry(RelBiometric).State = EntityState.Modified;
_context.SaveChanges();
return(RelBiometric);
}
}
public void OnEnrollBiometric(Biometric biometric)
{
Biometric = biometric;
RelBiometric relBiometric = new RelBiometric {
RelBiometricID = Guid.NewGuid()
};
relBiometric.FingerID = Biometric.FingerID;
relBiometric.StudentID = Student.StudentGuid;
if (Student.RelBiometrics == null)
{
Student.RelBiometrics = new ObservableCollection <RelBiometric>();
}
if (Student.RelBiometrics.FirstOrDefault() == null)
{
Biometric.FingerName = "Finger 1";
}
else
{
Biometric temp = Student.Biometrics.FirstOrDefault();
if (temp == null)
{
Biometric.FingerName = "Finger 1";
}
else if (temp.FingerName == "Finger 1")
{
Biometric.FingerName = "Finger 2";
}
else
{
Biometric.FingerName = "Finger 1";
}
}
Student.RelBiometrics.Add(relBiometric);
Student.Biometrics.Add(Biometric);
_biometricsRepository.AddBiometric(Biometric);
AddedBiometrics.Add(Biometric);
AddedRelBiometrics.Add(relBiometric);
}
private bool ValidateFinger(FeatureSet FeatureSet)
{
MemoryStream fingerprintData = null;
Result result = null;
foreach (Biometric biometric in _Biometrics) // Loop on the FPT List from DB to Compare the feature set with the DB templates
{
fingerprintData = new MemoryStream(biometric.FingerPrintTemplate);
_Template = new Template(fingerprintData);
result = new Result();
_Verificator.Verify(FeatureSet, _Template, ref result);
if (result.Verified)
{
_Verificator = new DPFP.Verification.Verification();
_relBiometric = _relBiometricsRepository.GetRelBiometric(biometric.FingerID);
if (_relBiometric != null) //Check if finger is enrolled.
{
_student = _studentsRepository.GetStudent(_relBiometric.StudentID);
Student = _student;
_attendance = _attendancesRepository.GetAttendanceByStudentID(_student.StudentGuid);
if (_attendance != null) //Check if student has already logged in for the day.
{
if (_attendance.TimeOut == null) //Check if student already logged out for the day
{
DateTime login = _attendance.TimeIn;
DateTime logout = DateTime.Now;
logout = new DateTime(logout.Year, logout.Month, logout.Day, logout.Hour, logout.Minute, 0);
if (logout > login.Add(new TimeSpan(1, 0, 0))) //Check if TimeSpan between login and logout is greater than allowed threshold
{
_attendance.IsOverstay = false;
_attendance.IsEarlyOut = false;
//Update student logout
_attendance.TimeOut = logout;
//Check if student is overstay or undertime;
TimeSpan timeOut = logout.TimeOfDay;
timeOut = new TimeSpan(timeOut.Hours, timeOut.Minutes, 0);
TimeSpan endTime = _student.Section.EndTime;
if (timeOut >= endTime.Add(new TimeSpan(1, 0, 0)))
{
_attendance.IsOverstay = true;
}
if (timeOut < endTime)
{
_attendance.IsEarlyOut = true;
}
_attendancesRepository.UpdateAttendance(_attendance); //Updated attendance record
Application.Current.Dispatcher.Invoke(delegate
{
_attendanceLogs.Insert(0, new AttendanceLog(_student.ImageData, _student.FirstName, _student.LastName, "logged out.", _attendance.TimeOut)); //Add action to attendance log
});
ProcessSMSIntegration(_attendance.AttendanceID.ToString(), false, (DateTime)_attendance.TimeOut, _student);
Remarks = "Student logged out.";
}
else
{
Remarks = "Student is not allowed to logout 1 hour after logging in.";
}
}
else
{
Remarks = "Student is not allowed to logout twice a day.";
}
}
else
{
DateTime login = DateTime.Now;
login = new DateTime(login.Year, login.Month, login.Day, login.Hour, login.Minute, 0);
//Create new attendance record for the student.
_attendance = new Attendance
{
AttendanceID = Guid.NewGuid(),
StudentID = _student.StudentGuid,
TimeIn = login
};
TimeSpan timeIn = _attendance.TimeIn.TimeOfDay;
TimeSpan startTime = _student.Section.StartTime;
if (timeIn > startTime)
{
_attendance.IsLate = true;
}
else
{
_attendance.IsLate = false;
}
_attendancesRepository.AddAttendance(_attendance); //Add Record
Application.Current.Dispatcher.Invoke(delegate
{
_attendanceLogs.Insert(0, new AttendanceLog(_student.ImageData, _student.FirstName, _student.LastName, "logged in.", _attendance.TimeIn));
});
ProcessSMSIntegration(_attendance.AttendanceID.ToString(), true, _attendance.TimeIn, _student);
Remarks = "Student logged in.";
}
return(true);
}
else
{
Remarks = "Fingerprint in system but not linked to any student.";
break;
}
}
}
return(false);
}
