public bool Login(Password password)
{
if (password is null)
{
throw new ArgumentNullException(nameof(password));
}
if (!Exists)
{
throw new InvalidOperationException("Storage does not exist.");
}
if (LoggedIn)
{
throw new InvalidOperationException("You are already logged in.");
}
try
{
_password = password;
Read();
LoggedInChanged?.Invoke(this, EventArgs.Empty);
return(true);
}
catch
{
_password = null;
return(false);
}
}
public void Logout()
{
if (!LoggedIn)
{
throw new InvalidOperationException("You are not logged in");
}
_password = null;
LoggedInChanged?.Invoke(this, EventArgs.Empty);
}