//  PipeScore - online bagpipe notation
//  Copyright (C) macarc
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.

import Auth, { User } from 'firebase-auth-lite';

// A small wrapper over auth.listen(). The auth.listen() isn't used directly
// is that by default it won't alert when the user isn't logged in
export function onUserChange(auth: Auth, cb: (user: User | null) => void) {
  auth.listen((user: User) => cb(user));
  auth.fetchProfile().catch(() => cb(null));
}