public GuestPage(LoginCredentionals credits)
{
this.credits = credits;
var id = DataManager.DStorage.Login_Id_Map[credits.Username];
var position = DataManager.DStorage.Id_Position_Map[id];
if (position == ElectronicJournal.Position.Guest)
{
guestView = true;
id = DataManager.DStorage.Guest_Studednt_Map[id];
}
this.student = DataManager.DStorage.Id_Person_Map[id];
InitializeComponent();
if (guestView)
{
MarkLabel.Content = "Marks for student [" + student + "] (guest view):";
}
else
{
MarkLabel.Content = "Marks for student [" + student + "]:";
}
var entries = DataManager.DStorage.Journal.GetEntries(id);
var displayEntries = entries.ConvertAll(e => new DisplayEntry(e.Time, e.Subject, DataManager.DStorage.Id_Person_Map[e.TeacherId], e.Mark));
MarkGrid.ItemsSource = displayEntries;
}
public static bool Authenticate(LoginCredentionals credits, out int userId)
{
Logger.Info("Authenticating user [" + credits.Username + "]...");
string storedPassword;
if (!dStorage.Login_Password_Map.TryGetValue(credits.Username, out storedPassword) || !storedPassword.Equals(credits.Password))
{
Logger.Warn("Authentication error. Login and password do not match!");
userId = -1;
return(false);
}
else
{
try
{
dStorage.Login_Id_Map.TryGetValue(credits.Username, out userId);
Logger.Info("Authentication succeeded.");
} catch
{
userId = -1;
Logger.Error("Authentication failed.");
}
return(true);
}
}
public TeacherPage(LoginCredentionals credits)
{
this.credits = credits;
InitializeComponent();
InitializeObservable();
tvm = new TeacherViewModel(_studentList, _markList);
DataContext = tvm;
MarkComboBox.ItemsSource = Enumerable.Range((int)AppConfiguration.MinMarkValue, (int)AppConfiguration.MaxMarkValue - (int)AppConfiguration.MinMarkValue + 1);
MarkComboBox.SelectedIndex = 0;
var teacherId = DataManager.DStorage.Login_Id_Map[credits.Username];
this.teacher = DataManager.DStorage.Id_Person_Map[teacherId];
this.subject = DataManager.DStorage.Id_Subject_Map[teacherId];
TeacherLabel.Content = "Teacher [" + teacher.ToShortString() + "]";
}
public void RegisterGuest(LoginCredentionals credits, int studentId, int guestId)
{
Logger.Info("Trying to add a guest [" + guestId + "] to watch student [" + studentId + "]...");
if (CheckPermission(credits))
{
Console.WriteLine("Adding new guest...");
try
{
Guest_Studednt_Map.Add(guestId, studentId);
Logger.Info("Regestering new guest succeeded.");
}
catch
{
Logger.Warn("Registering new guest failed.");
}
}
}
public void RegisterTeacher(LoginCredentionals credits, int id, Subject subject)
{
Logger.Info("Trying to add a teacher [" + id + "]...");
if (CheckPermission(credits))
{
Console.WriteLine("Adding new teacher...");
try
{
Id_Subject_Map.Add(id, subject);
Logger.Info("Regestering new teacher succeeded.");
}
catch
{
Logger.Warn("Registering new teacher failed.");
}
}
}
public AdministratorPage(LoginCredentionals credits)
{
this.credits = credits;
InitializeComponent();
InitializeData();
var id = DataManager.DStorage.Login_Id_Map[credits.Username];
var person = DataManager.DStorage.Id_Person_Map[id];
AdminLabel.Content = "Administrator [" + person.ToShortString() + "]";
avm = new AdministrativeViewModel(_personList, _studentList);
DataContext = avm;
PositionComboBox.ItemsSource = Enum.GetValues(typeof(Position));
SexComboBox.ItemsSource = Enum.GetValues(typeof(SexT));
SubjectComboBox.ItemsSource = Enum.GetValues(typeof(Subject));
SwitchSubject(false);
SwitchGuest(false);
}
private void loginButton_Click(object sender, RoutedEventArgs e)
{
int id;
var credits = new LoginCredentionals(usernameTextBox.Text, passwordBox.Password);
bool auth = AccountManager.Authenticate(credits, out id);
if (auth)
{
Position pos;
if (DataManager.DStorage.Id_Position_Map.TryGetValue(id, out pos))
{
NavigationService nav = NavigationService.GetNavigationService(this);
switch (pos)
{
case Position.Guest:
case Position.Student:
Logger.Info("Navigating to guest page.");
nav.Navigate(new GuestPage(credits));
return;
case Position.Teacher:
Logger.Info("Navigating to teacher page.");
nav.Navigate(new TeacherPage(credits));
return;
case Position.Administrator:
Logger.Info("Navigating to administrator page.");
nav.Navigate(new AdministratorPage(credits));
return;
default:
return;
}
}
else
{
Logger.Warn("Can not determine position of person [" + credits.Username + "].");
}
}
else
{
NavigationService nav = NavigationService.GetNavigationService(this);
textLabel.Content = "Login failed. Please try once more!";
}
}
private void AddButton_Click(object sender, RoutedEventArgs e)
{
var newUserCredits = new LoginCredentionals(avm.UserName, avm.Password);
var p = new Person(avm.Name, avm.SecondName, avm.Surname, avm.Birthday, (SexT)avm.SexIndex);
var pos = (Position)avm.PositionIndex;
DataManager.DStorage.RegisterNewUser(credits, newUserCredits, pos, p);
_personList.Add(new ExtendedPerson(p, pos));
if ((Position)avm.PositionIndex == Position.Teacher)
{
DataManager.DStorage.RegisterTeacher(credits, p.Id, (Subject)avm.SubjectIndex);
}
else if ((Position)avm.PositionIndex == Position.Guest)
{
var studentId = _studentList[avm.StudentIndex].Id;
DataManager.DStorage.RegisterGuest(credits, studentId, p.Id);
}
Reset();
}
public void RegisterNewUser(LoginCredentionals credits, LoginCredentionals newUserCredits, Position position, Person p)
{
Logger.Info("Trying to register new user...");
if (CheckPermission(credits))
{
Console.WriteLine("Registing new user [" + p + "][" + position + "...");
try
{
Id_Position_Map.Add(p.Id, position);
Id_Person_Map.Add(p.Id, p);
Id_Login_Map.Add(p.Id, newUserCredits.Username);
Login_Id_Map.Add(newUserCredits.Username, p.Id);
Login_Password_Map.Add(newUserCredits.Username, newUserCredits.Password);
Logger.Info("Regestering new user succeeded.");
}
catch
{
Logger.Warn("Registering new user failed.");
}
}
}
public void RemoveUser(LoginCredentionals credits, int id)
{
Logger.Info("Trying to remove a user [" + id + "]...");
if (CheckPermission(credits))
{
try
{
if (Id_Login_Map.ContainsKey(id))
{
var login = Id_Login_Map[id];
if (Login_Id_Map.ContainsKey(login))
{
Login_Id_Map.Remove(login);
}
Id_Login_Map.Remove(id);
}
if (Id_Person_Map.ContainsKey(id))
{
Id_Person_Map.Remove(id);
}
if (Id_Position_Map.ContainsKey(id))
{
Id_Position_Map.Remove(id);
}
if (Id_Subject_Map.ContainsKey(id))
{
Id_Subject_Map.Remove(id);
}
if (Guest_Studednt_Map.ContainsKey(id))
{
Guest_Studednt_Map.Remove(id);
}
Logger.Info("Removing user succeeded.");
}
catch
{
Logger.Warn("Removing user failed.");
}
}
}
private bool CheckPermission(LoginCredentionals credits)
{
Logger.Info("Cheking permissions...");
int id;
Position position;
if (AccountManager.Authenticate(credits, out id))
{
if (Id_Position_Map.TryGetValue(id, out position) && position == Position.Administrator)
{
Logger.Info("Ok.");
return(true);
}
else
{
Logger.Warn("Not enought permitions!");
}
}
else
{
Logger.Warn("Current user authentication [" + credits.Username + "] failed.");
}
return(false);
}
