public WindowExaminationSchedule()
 {
     InitializeComponent();
     doctors = fd.LoadFromFile();
     for (int i = 0; i < doctors.Count; i++)
     {
         Combo3.Items.Add(doctors[i].Username.ToString());
     }
 }
        //trenutno otkazujem pregled preko id pregleda
        //uradjeno da kad se pregled otkaze onda se ukloni pregled i doktoru
        private void CancelExamination_Click(object sender, RoutedEventArgs e)
        {
            //WindowExaminationCancel window = new WindowExaminationCancel();
            //window.Show();
            //string id = (string)lvUsers.SelectedItems[lvUsers.SelectedIndex];
            //ListViewItem item = lvUsers.SelectedItems[1];
            //string name = lvUsers.SelectedItems[0].SubItems[0].Text;
            //string id = (string)lvUsers.SelectedItems[0];
            //string id = (string)lvUsers.SelectedItem;

            Examination e2 = (Examination)lvUsers.SelectedItem;
            string      id = e2.ExaminationId;

            MessageBoxResult result = System.Windows.MessageBox.Show("Do you want to cancel examination?", "Confirmation", MessageBoxButton.YesNo);

            switch (result)
            {
            case MessageBoxResult.Yes:
                int index = lvUsers.SelectedIndex;
                WorkWithFiles.FilesDoctor doc     = new WorkWithFiles.FilesDoctor();
                List <Doctor>             doctors = doc.LoadFromFile();
                DateTime dt = e2.ExaminationStart;

                for (int i = 0; i < doctors.Count; i++)
                {
                    if (doctors[i].Username == e2.DoctorsId)
                    {
                        for (int j = 0; j < doctors[i].Scheduled.Count; j++)
                        {
                            if (doctors[i].Scheduled[j] == dt)
                            {
                                doctors[i].Scheduled.RemoveAt(j);
                            }
                        }

                        doc.WriteInFile(doctors);
                        break;
                    }
                }

                m.CancelExamination(id);
                //m.Cancel(index);
                UpdateView();
                break;

            case MessageBoxResult.No:
                break;
            }
        }
        private void ButtonOk_Click(object sender, RoutedEventArgs e)
        {
            //zakazivanje za kt2
            //s1 = PatientId.Text;
            //s2 = DoctorId.Text;
            DateTime date = Date.SelectedDate.Value.Date;
            //TimeSpan time = new TimeSpan(Int32.Parse(Hour1.Text), Int32.Parse(Minute1.Text), Int32.Parse(Second1.Text));

            //DateTime date = new DateTime(2000, 12, 30, 15, 10, 00);
            //DateTime date = new DateTime(d);
            //DateTime date = new DateTime(Int32.Parse(Year1.Text), Int32.Parse(Month1.Text), Int32.Parse(Day1.Text), Int32.Parse(Hour1.Text), Int32.Parse(Minute1.Text), Int32.Parse(Second1.Text));
            //id svakog pregleda je unikatan

            //lista svih mogucih termina za pregled, kombijuje se sa date time pickerom
            //trojke oznacavaju sat/min/sekund
            List <(int, int, int)> appointment = new List <(int, int, int)>();

            for (int i = 0; i < 13; i++)
            {
                appointment.Add((7 + i, 0, 0));
                appointment.Add((7 + i, 30, 0));
            }
            (int, int, int)a = appointment[Combo.SelectedIndex];
            TimeSpan time = new TimeSpan(a.Item1, a.Item2, a.Item3);
            DateTime d    = date + time;

            //generisem unikatan id za pregled
            //radi tako sto jednom ucitam sve preglede i nadjem najveci id pa nakon toga samo dodeljujem za po jedan br veci
            List <Examination> examinations = m.Examinations;

            if (ok == false)
            {
                ok = true;
                for (int i = 0; i < examinations.Count; i++)
                {
                    if (Int32.Parse(examinations[i].ExaminationId) > idExamination)
                    {
                        idExamination = Int32.Parse(examinations[i].ExaminationId);
                    }
                }
            }

            /*bool isFree = true;
             * List<Room> rooms = SerializationAndDeserilazationOfRooms.LoadRoom();
             * for (int i = 0; i < rooms.Count; i++) {
             *  for (int j = 0; j < rooms[i].Scheduled.Count; j++)
             *  {
             *      if (rooms[i].Scheduled[j] == d)
             *      {
             *          isFree = false;
             *      }
             *  }
             * }*/

            //List<Room> rooms = SerializationAndDeserilazationOfRooms.LoadRoom();
            //rooms[0].Scheduled.Add(d);

            //prolazim kroz zakazane preglede doktora i ako je on slobodan u tom terminu onda moze  da se zakaze
            bool isFree = true;

            //bool sched = false;
            WorkWithFiles.FilesDoctor doc     = new WorkWithFiles.FilesDoctor();
            List <Doctor>             doctors = doc.LoadFromFile();

            /*for (int i = 0; i < doctors.Count; i++)
             * {
             *  Random rnd = new Random();
             *  int index = rnd.Next(0, doctors.Count);
             *  isFree = true;
             *  for (int j = 0; j < doctors[index].Scheduled.Count; j++)
             *  {
             *      if (doctors[index].Scheduled[j] == d)
             *      {
             *          isFree = false;
             *      }
             *  }
             *  if (isFree)
             *  {
             *      s2 = doctors[index].Username;
             *      doctors[index].Scheduled.Add(d);
             *      doc.WriteInFile(doctors);
             *      sched = true;
             *      break;
             *  }
             * }
             *
             * //u prvoj petlji uzimam doktore na random da ne bih uvek istom doktoru popunio sve termine pa tek onda sledecem
             * //ova petlja je da se prodje kroz sve ako nije zakazan pregled u prvoj petlji jer je moguce da je neki doktor izostavljen
             * for (int i = 0; i < doctors.Count && sched == false; i++)
             * {
             *  isFree = true;
             *  for (int j = 0; j < doctors[i].Scheduled.Count; j++)
             *  {
             *      if (doctors[i].Scheduled[j] == d)
             *      {
             *          isFree = false;
             *      }
             *  }
             *  if (isFree)
             *  {
             *      s2 = doctors[i].Username;
             *      doctors[i].Scheduled.Add(d);
             *      doc.WriteInFile(doctors);
             *      sched = true;
             *      break;
             *  }
             * }*/

            //proveri da li je termin slobodan za izabranog lekara
            int index = Combo3.SelectedIndex;

            for (int j = 0; j < doctors[index].Scheduled.Count; j++)
            {
                if (doctors[index].Scheduled[j] == d)
                {
                    isFree = false;
                }
            }

            if (isFree)
            {
                s2 = doctors[index].Username;
                doctors[index].Scheduled.Add(d);
                doc.WriteInFile(doctors);
            }

            if (isFree == false)
            {
                MessageBox.Show("There is no free term. Choose another time.");
                Close();
                return;
            }

            Examination ex = new Examination(mw.EnteredUsername, s2, "101", d, (idExamination + 1).ToString());

            m.ScheduleExamination(ex);

            w.UpdateView();
            Close();
        }