Authomatic and Flask-Login

@app.route('/login/<provider_name>', methods=['GET', 'POST'])
@authomatic.login('g')
@requires_ssl
def login(provider_name):
    if g.user is not None and g.user.is_authenticated():
        return redirect(url_for('index'))
    if authomatic.result:
        if authomatic.result.error:
            return 'Something went wrong: {0}'.format(authomatic.result.error.message)
        if authomatic.result.user:
            if not (authomatic.result.user.name and authomatic.result.user.id):
                authomatic.result.user.update()
#                while update_response.status/100 not in [4, 5]:
#                    update_response = authomatic.result.user.update()
#                if update_response.status/100 in [4, 5]:
#                    return 'Response status: {}'.format(authomatic.response.status)
            user = User.query.filter_by(email=authomatic.result.user.email).first()
            if user is None:
                nickname = authomatic.result.user.name
                if nickname is None or nickname == "":
                    nickname = authomatic.result.user.email.split('@')[0]
                nickname = User.make_valid_nickname(nickname)
                nickname = User.make_unique_nickname(nickname)
                role = ROLE_USER
                if authomatic.result.user.email in PRESET_ADMINS:
                    role = ROLE_SUPERADMIN
                user = User(nickname=authomatic.result.user.name,
                            email=authomatic.result.user.email,
                            about_me=authomatic.result.user.id,
                            role=role,
                            join=datetime.utcnow(),
                            last_seen=datetime.utcnow())
                db.session.add(user)
                db.session.commit()
            g.user = user
            login_user(g.user, remember=True)
            flash('You are now logged in!')
            return render_template('result.html', result=authomatic.result)
    return authomatic.response