public static void Login_Start(User user, Password password)
{
if (password == Password.Correct)
activeLoginRequests = activeLoginRequests.Add(user, LoginStatus.Success);
else
activeLoginRequests = activeLoginRequests.Add(user, LoginStatus.Failure);
}
public static void Login_Finish(User user, LoginStatus status)
{
if (status == LoginStatus.Success)
{
Contract.usersLoggedIn = Contract.usersLoggedIn.Add(user);
}
else // if status == LoginStatus.Failure
if (Contract.usersLoggedIn.Contains(user))
Contract.usersLoggedIn = Contract.usersLoggedIn.Remove(user);
activeLoginRequests = activeLoginRequests.RemoveKey(user);
}
public static bool LogoutEnabled(User user)
{
return Contract.usersLoggedIn.Contains(user);
}
public static void Logout(User user)
{
Contract.usersLoggedIn = Contract.usersLoggedIn.Remove(user);
}
public static bool Login_StartEnabled(User user)
{
return !activeLoginRequests.ContainsKey(user) && !Contract.usersLoggedIn.Contains(user);
}
public static bool Login_FinishEnabled(User user, LoginStatus status)
{
return activeLoginRequests.Keys.Contains(user) && activeLoginRequests[user].Equals(status);
}
public static void UpdateInt(User user, [Domain("numbers")] int number)
{
userToInt = userToInt.Override(user,number);
}
public static bool ReadIntEnabled(User user, int number)
{
return userToInt[user] == number;
}
public static void ReadInt(User user,[Domain("numbers")] int number)
{
// Reading a number from the page should not change the state
// thus the body is empty.
}