//We could make a separate interface and class with different implementations of how we want to handle the response. This would be like a strategy design pattern
//For simplicity and since there is only one way to implement this right now, I just left the logic in here.
static void handleBusinessLogicResponse(GetUserPreferencesResult response)
{
switch(response.ReturnCode)
{
case 0 :
if(response.Preferences.Any())
{
//Once a user is logged in, the application should output all the preferences
//associated for that user to the screen. There is no maximum number of preferences
//for a given user.
Console.WriteLine("Showing Preferences...");
foreach (var preference in response.Preferences)
{
Console.WriteLine(preference.Name + " : " + preference.Setting);
}
}
else
{
Console.WriteLine("User Has No Preferences...");
}
break;
case 1 :
Console.WriteLine("Invalid user name and/or password...");
break;
default :
Console.WriteLine("Unknown error occurred...");
break;
}
}
public GetUserPreferencesResult GetUserPreferences(string userName, string password)
{
var result = new GetUserPreferencesResult();
if (DataAccessor.IsUserAuthenticated(userName, password))
{
result.Preferences = DataAccessor.GetUserPreferences(userName);
result.ReturnCode = 0;
}
else
{
//bad password or user name
result.ReturnCode = 1;
}
return result;
}