/// <summary>
/// The user only can upcomming appointment.
/// When user click cancel appointment button,
/// The program should check that the user select any appointment to cancel
/// If not, the program will notify to user about that.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnCancelAppointment_Click(object sender, RoutedEventArgs e)
{
Appointment selectedAppointment = (Appointment)dgTimeSchedule.SelectedItem;
if (selectedAppointment == null)
{
MessageHelper.ShowWarningMessage("Please select an appointment first!", "Cancel Appointment");
return;
}
if (selectedAppointment.DateTime < DateTime.Now)
{
MessageHelper.ShowWarningMessage("You only cancel upcoming appointments!", "Cancel Appointment");
return;
}
MessageBoxResult answer = MessageHelper.ShowQuestionMessage(
string.Format("Do you want to cancel appointment with {0} at {1:t}", selectedAppointment.Customer.FullName, selectedAppointment.DateTime), "Cancel Appointment");
if (answer == MessageBoxResult.No || answer == MessageBoxResult.Cancel)
{
return;
}
//Reset select item of data grid
dgTimeSchedule.SelectedItem = null;
//Delete Appointment
XMLHelpers.Instance().Appointments.Remove(selectedAppointment);
scheduleViewModel.AppointmentList = XMLHelpers.Instance().Appointments;
scheduleViewModel.RefreshAppointments();
}
/// <summary>
/// Read default Data XML Default
/// Load data into data grid
/// </summary>
private void UpdateDatagridSchedule()
{
LoadDefaultDataFile();
NailSalonXMLDAO NailSalonDAO = XMLHelpers.Instance();
scheduleViewModel.Today = DateTime.Now;
scheduleViewModel.AppointmentList = NailSalonDAO.Appointments;
}
private void BtnSaveData_Click(object sender, RoutedEventArgs e)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
saveFileDialog.Filter = "XML file (*.xml)|*.xml";
if (saveFileDialog.ShowDialog() == true)
{
XMLHelpers.WriteToXML(saveFileDialog.FileName);
}
}
public static bool IsEmployeeAvailableOn(DateTime dateTime, Employee employee, Appointment currentAppointment)
{
List <Appointment> appointments = XMLHelpers.Instance().Appointments;
List <Appointment> reservedAppointments = appointments.Where(appointment => appointment.DateTime.Date == dateTime.Date && appointment.Employee == employee).ToList();
foreach (Appointment appointment in reservedAppointments)
{
if ((appointment.DateTime <= dateTime) && (dateTime <= appointment.TimeEnd) && (currentAppointment.ID != appointment.ID))
{
return(false);
}
}
return(true);
}
/// <summary>
/// When program startup, the program will read default data file
/// Default data file should be store in Debug or Release Folder
/// If the defualt data file is not found, we should use Load Data feature
/// to load data file into our program
/// </summary>
private void LoadDefaultDataFile()
{
string fileName = ConfigurationManager.AppSettings["XMLDataFile"];
string path = PathHelper.GetFileLocation(fileName);
if (File.Exists(path))
{
try
{
XMLHelpers.ReadFromXML(fileName);
}
catch
{
//
}
}
}
private static int GetMaxApppointmentIDvalue(Random rand)
{
List <Appointment> appointments = XMLHelpers.Instance().Appointments;
if (appointments == null || appointments.Count == 0)
{
return(0);
}
return(appointments.Select(appointment => {
string id = appointment.ID.Substring(1);
if (IsNumberString(id))
{
return int.Parse(id);
}
return rand.Next();
}).Max());
}
private static int GetMaxServiceIDvalue(Random rand)
{
List <Service> services = XMLHelpers.Instance().Services;
if (services == null || services.Count == 0)
{
return(0);
}
return(services.Select(service => {
string id = service.ID.Substring(1);
if (IsNumberString(id))
{
return int.Parse(id);
}
return rand.Next();
}).Max());
}
private static int GetMaxCustomerIDvalue(Random rand)
{
List <Customer> customers = XMLHelpers.Instance().Customers;
if (customers == null || customers.Count == 0)
{
return(0);
}
return(customers.Select(customer => {
string id = customer.ID.Substring(1);
if (IsNumberString(id))
{
return int.Parse(id);
}
return rand.Next();
}).Max());
}
private static int GetMaxEmployeeIDvalue(Random rand)
{
List <Employee> employees = XMLHelpers.Instance().Employees;
if (employees == null || employees.Count == 0)
{
return(0);
}
return(employees.Select(employee => {
string id = employee.ID.Substring(1);
if (IsNumberString(id))
{
return int.Parse(id);
}
return rand.Next();
}).Max());
}
/// <summary>
/// Open a dialog to select the xml file
/// Load data from xml file
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnLoadData_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = Directory.GetCurrentDirectory();
openFileDialog.DefaultExt = ".xml";
openFileDialog.Filter = "XML file (*.xml)|*.xml";
if (openFileDialog.ShowDialog() == true)
{
// a flag for store status of reading xml file, and catch exception message to display for users.
try
{
XMLHelpers.ReadFromXML(openFileDialog.FileName);
scheduleViewModel.AppointmentList = XMLHelpers.Instance().Appointments;
scheduleViewModel.RefreshAppointments();
} catch (Exception error)
{
MessageBox.Show(error.Message, "Failed to read " + System.IO.Path.GetFileName(openFileDialog.FileName), MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
}
}
/// <summary>
/// Check the hour is available for booking
/// </summary>
/// <param name="date"></param>
/// <param name="hour"></param>
/// <returns></returns>
public static bool IsValidHoursOf(DateTime date, DateTime hour)
{
List <Appointment> appointmentLisbyDate = SearchHelper.ListAppointmentsOfToday(XMLHelpers.Instance().Appointments, date);
foreach (Appointment appointment in appointmentLisbyDate)
{
if (hour >= appointment.TimeStart && hour <= appointment.TimeEnd)
{
return(false);
}
}
return(true);
}