private void ChangeState(State newState, VMBase newVM = null)
{
switch (newState)
{
case State.EMPLOYEE_LIST:
Content = new EmployeeSelectorAdderVM(this, _db);
ForwardButtonText = "Configure Employee";
BackButtonText = "Back";
Title = "Select Employee to Configure";
_state = State.EMPLOYEE_LIST;
break;
case State.CONFIGURE_EMPLOYEE:
var newVMCast = newVM as EmployeeModifierVM;
Title = $"Configuring {newVMCast.OriginalEmployee?.FullName ?? "New Employee"}";
ForwardButtonText = "Save";
BackButtonText = "Cancel";
Content = newVMCast;
_state = State.CONFIGURE_EMPLOYEE;
break;
case State.SELECT_MANAGER:
_prevContent = Content;
EmployeeModifierVM prevVM = _prevContent as EmployeeModifierVM;
Content = new EmployeeSelectorVM(_db);
Title = $"Select Manager For {prevVM.OriginalEmployee?.FullName ?? "New Employee"}";
ForwardButtonText = "Save";
BackButtonText = "Cancel";
_state = State.SELECT_MANAGER;
break;
}
}
protected override void OnForwardButton(object param)
{
switch (_state)
{
case State.EMPLOYEE_LIST:
EmployeeSelectorVM vm = Content as EmployeeSelectorVM;
if (vm == null)
{
Console.WriteLine("This shouldnt happen"); return;
}
if (vm.SelectedEmployee == null)
{
return;
}
ChangeState(State.CONFIGURE_EMPLOYEE, new EmployeeModifierVM(this, vm.SelectedEmployee));
break;
case State.CONFIGURE_EMPLOYEE:
EmployeeModifierVM vm2 = Content as EmployeeModifierVM;
Employee configuredEmployee = vm2.GetEmployee();
if (configuredEmployee.Employee_Id == 0)
{
_db.Employees.Add(configuredEmployee);
}
else
{
Employee originalEmployee = _db.Employees.Find(configuredEmployee.Employee_Id);
_db.Entry(originalEmployee).CurrentValues.SetValues(configuredEmployee);
}
_db.SaveChanges();
ChangeState(State.EMPLOYEE_LIST);
break;
case State.SELECT_MANAGER:
EmployeeModifierVM newVM = _prevContent as EmployeeModifierVM;
vm = Content as EmployeeSelectorVM;
if (vm == null)
{
Console.WriteLine("This shouldnt happen"); return;
}
if (vm.SelectedEmployee == null)
{
return;
}
newVM.Manager = vm.SelectedEmployee;
ChangeState(State.CONFIGURE_EMPLOYEE, newVM);
break;
default:
break;
}
}