firebase-auth-hummingbird

class FireAuthService extends BaseAuthService {
  final Auth _firebaseAuth = fb.auth();

  //Get currently logged-in user
  @override
  Future<User> currentUser() async {
    return await _firebaseAuth.currentUser;
  }

  //Sign-in using email and password, notifies all subscribers.
  @override
  Future<User> signIn(String email, String password) async {
    try {
      var auth =
          await _firebaseAuth.signInWithEmailAndPassword(email, password);

      notifyListeners();
      return auth.user;
    } catch (e) {
      throw Exception(e);
    }
  }

  //This method is called from register form. A user account is created in FirebaseAuth
  @override
  Future<User> createUser(
      String firstName, String lastName, String email, String password) async {
    var auth =
        await _firebaseAuth.createUserWithEmailAndPassword(email, password);

    var info = fb.UserProfile();
    info.displayName = '$firstName $lastName';
    await auth.user.updateProfile(info);

    updateUser(auth.user);

    return auth.user;
  }

  //A record is created at Firestore to keep track of all personalized data for each user.
  @override
  Future<User> updateUser(User user) async {
    final CollectionReference ref = fb.firestore().collection('users');

    String displayName = user.displayName;
    String photoUrl = user.photoURL;

    if (displayName == null) {
      displayName = "No Name yet";
    }

    if (photoUrl == null) {
      photoUrl = "";
    }

    var newData = {
      'uid': user.uid,
      'displayName': displayName,
      'photoUrl': photoUrl,
      'email': user.email,
      'lastActive': DateTime.now()
    };

    await ref.doc(user.uid).set(newData, SetOptions(merge: true));

    return user;
  }

  //Sign-out
  @override
  Future<void> signOut() async {
    _firebaseAuth.signOut();
    notifyListeners();
  }

  @override
  Future<User> googleSignIn() async {
    //TODO
  }
}