public static string GetGoogleId(string authToken, AuthTokenRepository authTokenRepository, UserRepository userRepository)
{
if (string.IsNullOrEmpty(authToken))
{
throw new ArgumentNullException("authToken");
}
User user;
var googleId = authTokenRepository.GetGoogleIdByAuthToken(authToken);
if (googleId == null)
{
user = RecordTheAuthTokenInTheDatabase(authToken, authTokenRepository);
googleId = user.GoogleId;
}
else
{
user = userRepository.GetUserByGoogleId(googleId);
if (user == null)
{
var googlePlusLoginDto = GetGooglePlusLoginDto(authToken);
if (googlePlusLoginDto == null || String.IsNullOrEmpty(googlePlusLoginDto.id))
{
throw new ArgumentException(String.Format("Unable to retrieve a Google user for auth token: '{0}'.", authToken));
}
user = Mapper.Map<GooglePlusLoginDto, User>(googlePlusLoginDto);
}
}
AddOrUpdateTheUser(user, userRepository);
return googleId;
}
private static void AddOrUpdateTheUser(User user, UserRepository userRepository)
{
var existingUser = userRepository.GetUserByGoogleId(user.GoogleId);
if (existingUser == null)
{
user.CreateDate = DateTimeOffset.Now;
userRepository.Add(user);
}
else
{
if (existingUser.DisplayName != user.DisplayName ||
existingUser.GivenName != user.GivenName ||
existingUser.FamilyName != user.FamilyName ||
existingUser.Link != user.Link ||
existingUser.Picture != user.Picture ||
existingUser.Gender != user.Gender ||
existingUser.Locale != user.Locale)
{
existingUser.DisplayName = user.DisplayName;
existingUser.GivenName = user.GivenName;
existingUser.FamilyName = user.FamilyName;
existingUser.Link = user.Link;
existingUser.Picture = user.Picture;
existingUser.Gender = user.Gender;
existingUser.Locale = user.Locale;
existingUser.UpdateDate = DateTimeOffset.Now;
userRepository.Update(existingUser);
}
}
}
