loginFacebook() {
    this.setState({ loading: true });
    LoginManager.logInWithReadPermissions(['public_profile', 'email'])
    .then((result) => {
        if (result.isCancelled) {
            this.setState({ loading: false });
            return Promise.reject(new Error('O usuário cancelou a requisição'));
        }
        console.log(`Login sucess with permissions: ${result.grantedPermissions.toString()}`);
        // get the access token
        return AccessToken.getCurrentAccessToken();
    })
    .then(data => {
        const credential = firebase.auth.FacebookAuthProvider.credential(data.accessToken);
        return firebase.auth().signInWithCredential(credential);
    })
    .then((currentUser) => {
        switch (true) {
            case (currentUser.metadata.creationTime === currentUser.metadata.lastSignInTime):
            return this.setFacebookPath(currentUser.email, currentUser.displayName, currentUser.photoURL);
            default: return Actions.menu();
        }
    })
    .catch((error) => {
        console.log(`Falha na autenticação: ${error}`);
    });
}

logout() {
    const loggedIn = AccessToken.getCurrentAccessToken();
    if (loggedIn != null) {
        LoginManager.logOut();
    }
    firebase.auth().signOut().then(() => Actions.login());
}