User user

firebase auth 나 google 에서 제공해주는 객체를 그대로 사용하는듯 하다
UserModel 과는 다른듯

/// Verify user's credentials for login
  Future<String> signIn(String email, String password,
      {GlobalKey<ScaffoldState> scaffoldKey}) async {
    try {
      loading = true;
      var result = await _firebaseAuth.signInWithEmailAndPassword(
          email: email, password: password);

      user = result.user;
      userId = user.uid;
      return user.uid;
    } catch (error) {
      loading = false;
      cprint(error, errorIn: 'signIn');
      kAnalytics.logLogin(loginMethod: 'email_login');
      customSnackBar(scaffoldKey, error.message);
      // logoutCallback();
      return null;
    }
  }
  

  /// Create user from `google login`
  /// If user is new then it create a new user
  /// If user is old then it just `authenticate` user and return firebase user data
  Future<User> handleGoogleSignIn() async {
    try {
      /// Record log in firebase kAnalytics about Google login
      kAnalytics.logLogin(loginMethod: 'google_login');
      final GoogleSignInAccount googleUser = await _googleSignIn.signIn();
      if (googleUser == null) {
        throw Exception('Google login cancelled by user');
      }
      final GoogleSignInAuthentication googleAuth =
          await googleUser.authentication;

      // final AuthCredential credential = GoogleAuthProvider.getCredential(
      //   accessToken: googleAuth.accessToken,
      //   idToken: googleAuth.idToken,
      // );\

      final credential = GoogleAuthProvider.credential(
        accessToken: googleAuth.accessToken,
        idToken: googleAuth.idToken,
      );

      user = (await _firebaseAuth.signInWithCredential(credential)).user;
      authStatus = AuthStatus.LOGGED_IN;
      userId = user.uid;
      isSignInWithGoogle = true;
      createUserFromGoogleSignIn(user);
      notifyListeners();
      return user;
    } on PlatformException catch (error) {
      user = null;
      authStatus = AuthStatus.NOT_LOGGED_IN;
      cprint(error, errorIn: 'handleGoogleSignIn');
      return null;
    } on Exception catch (error) {
      user = null;
      authStatus = AuthStatus.NOT_LOGGED_IN;
      cprint(error, errorIn: 'handleGoogleSignIn');
      return null;
    } catch (error) {
      user = null;
      authStatus = AuthStatus.NOT_LOGGED_IN;
      cprint(error, errorIn: 'handleGoogleSignIn');
      return null;
    }
  }