/*
 * Geekdroid is a utility library for development on the Android
 * Platform.
 *
 * Copyright (C) 2017-2024 by Frederic-Charles Barthelery.
 *
 * This file is part of Geekdroid.
 *
 * Geekdroid 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.
 *
 * Geekdroid 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 Geekdroid.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.geekorum.geekdroid.firebase

import androidx.lifecycle.LiveData
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.FirebaseUser

/**
 * Livedata to observe the [FirebaseAuth.getCurrentUser]
 */
class CurrentUserLiveData(
    private val firebaseAuth: FirebaseAuth = FirebaseAuth.getInstance()
): LiveData<FirebaseUser?>() {

    private val authStateListener = { it: FirebaseAuth ->
        value = it.currentUser
    }

    override fun onActive() {
        firebaseAuth.addAuthStateListener(authStateListener)
    }

    override fun onInactive() {
        firebaseAuth.removeAuthStateListener(authStateListener)
    }
}
