public MainViewModel()
{
EmployeeHandler = new EmployeeHandler(this);
if (OpenDbConnection)
{
PersistencyService.OpenApiConnection();
}
EmployeesInDb = new ObservableCollection <Employee>();
LoggedInEmployees = new List <Employee>();
DatabaseTable = new ObservableCollection <Employee>();
if (OpenDbConnection)
{
PersistencyService.GetData(EmployeesInDb);
PersistencyService.GetDataLoggedIn(LoggedInEmployees);
}
LoginOrLogoutCommand = new RelayCommand(EmployeeHandler.LoginOrLogout);
CompleteEmployeeListCommand = new RelayCommand(EmployeeHandler.CompleteEmployeeList);
PersonalEntryListCommand = new RelayCommand(EmployeeHandler.PersonalEntryList);
OwnDepartmentListCommand = new RelayCommand(EmployeeHandler.OwnDepartmentList);
AddSickOrVacationdaysCommand = new RelayCommand(EmployeeHandler.ChangeVacationOrSickdays);
AdminChangePersonalInfoCommand = new RelayCommand(EmployeeHandler.AdminChangePersonalInfo);
AdminChangeSalaryInfoCommand = new RelayCommand(EmployeeHandler.AdminChangeSalaryInfo);
SortByNameCommand = new RelayCommand(EmployeeHandler.SortByName);
SortByEmployeeIdCommand = new RelayCommand(EmployeeHandler.SortByEmployeeId);
ExportAsCsvCommand = new RelayCommand(() => ExportEmployeesToCsvFile());
}
/// <summary>
/// Will log the matching employee in if he isn't already, and start the time management.
/// If the matching employee is logged in, he will be logged out, and the total hours will be updated thereafter.
/// </summary>
public async void LoginOrLogout()
{
if (MainViewModel.OpenDbConnection)
{
PersistencyService.GetDataLoggedIn(_viewModel.LoggedInEmployees);
}
var employees = _viewModel.EmployeesInDb.ToList();
var matcingEmployee = employees.Find(e => e.EmployeeId.ToString() == _viewModel.LoginOrLogoutBox);
var matchingLoggedInEmployee = _viewModel.LoggedInEmployees.Find(e => e.EmployeeId.ToString() == _viewModel.LoginOrLogoutBox);
//If user IS NOT logged in, he will be logged in:
if (matcingEmployee != null && matchingLoggedInEmployee == null)
{
matcingEmployee.LastLogin = DateTime.Now;
LastLoggedIn = matcingEmployee;
if (LastLoggedIn.TotalHours > new TimeSpan(24, 59, 59))
{
LastLoggedIn.TotalHours = new TimeSpan(10, 35, 28); //Due to unknown unresponsiveness if the employees TotalHours-property is above 24 hours.
}
_viewModel.DatabaseTable.Clear();
_viewModel.DatabaseTable.Add(LastLoggedIn);
if (!MainViewModel.OpenDbConnection)
{
return;
}
PersistencyService.PostDataLoggedIn(matcingEmployee); //Posted to logged in employees database.
PersistencyService.PutData(matcingEmployee); //Updates logintime for the employee on the shown employee list.
DanxMainPage.CloseCanvases();
DanxMainPage.MainScreenLoginCanvas.Visibility = Visibility.Visible;
if (matcingEmployee.GetType() == typeof(AdminEmp))
{
DanxMainPage.AdminToolsCanvas.Visibility = Visibility.Visible;
}
else
{
DanxMainPage.AdminToolsCanvas.Visibility = Visibility.Collapsed;
}
}
//If user IS logged in, he will be logged out:
else if (matchingLoggedInEmployee != null)
{
_employeeToLogout = matchingLoggedInEmployee;
UpdateLogoutTime();
UpdateTotalHours();
_employeeToLogout = null;
if (!MainViewModel.OpenDbConnection)
{
return;
}
PersistencyService.DeleteDataLoggedIn(matchingLoggedInEmployee); //Removing logged out employee from logged in table.
DanxMainPage.CloseCanvases();
DanxMainPage.MainScreenCanvas.Visibility = Visibility.Visible;
var hoursWorkedFormat = String.Format(_hoursWorked.Hours + ":" + _hoursWorked.Minutes + ":" + _hoursWorked.Seconds);
//Goodbye message
DanxMainPage.UiWelcomeMessage.Text =
" Goodbye!\n You have worked for " + hoursWorkedFormat + " today.";
await Task.Delay(8000);
DanxMainPage.UiWelcomeMessage.Text =
" Welcome!\nInsert worker-id in one of the boxes above.";
}
//If a wrong user id is entered:
else
{
try
{
throw new ArgumentException("Please enter a valid employee id."); //Unittest purposes
}
catch (ArgumentException)
{
var errorMsg = new MessageDialog("Please enter a valid employee id.", "Error");
if (MainViewModel.OpenDbConnection)
{
errorMsg.ShowAsync(); //Unittest purposes
}
}
}
}