aretherecookies-mobile/js/AuthManager.js

//@flow
import { authFacebook, type FacebookAuth } from './apis/FacebookAuth';
import moment from 'moment';

export const AUTH_PROVIDER_FACEBOOK: 'facebook' = 'facebook';

export type AUTH_PROVIDER = typeof AUTH_PROVIDER_FACEBOOK;

export type User = {
	name: string,
	token: string,
	tokenExpires: number,
	email: string,
	photo: string,
	provider: AUTH_PROVIDER,
};

class AuthManager {
	user: ?User;

	getToken = () => {
		return this.user && this.user.token;
	};

	isLoggedIn = () => {
		if (!this.user) {
			return false;
		}
		const { token, tokenExpires } = this.user;
		return token && +moment(tokenExpires) >= +moment();
	};

	setFacebookUser = ({ credentials, profile }: FacebookAuth) => {
		this.user = {
			token: credentials.token,
			tokenExpires: +moment(credentials.tokenExpirationDate),
			name: profile.name,
			email: profile.email,
			photo: profile.picture.data.url,
			provider: AUTH_PROVIDER_FACEBOOK,
		};
	};

	authorize = async (provider: AUTH_PROVIDER) => {
		switch (provider) {
			case AUTH_PROVIDER_FACEBOOK:
				this.setFacebookUser(await authFacebook());
		}
	};
}

export default new AuthManager();