The facebook wrapper for Beamable 0.9.0

FacebookWrapper.cs

using System.Collections.Generic;
using Beamable.AccountManagement;
using Beamable.Api;
using Beamable.Common.Api.Auth;
using Facebook.Unity;
using UnityEditor;
using UnityEngine;
public class FacebookWrapper : MonoBehaviour
{
    private AccountManagementSignals _signals;
    private bool _hasAttachedListener;
    private void Update()
    {
        if (!_hasAttachedListener && _signals.ThirdPartyLoginAttempted != null)
        {
            _signals.ThirdPartyLoginAttempted.AddListener(StartFacebookLogin);
            _hasAttachedListener = true;
        }
    }
    // Awake function from Unity's MonoBehavior
    void Awake ()
    {
        _signals = gameObject.AddComponent<AccountManagementSignals>();
        if (!FB.IsInitialized) {
            // Initialize the Facebook SDK
            FB.Init(InitCallback, OnHideUnity);
        } else {
            // Already initialized, signal an app activation App Event
            FB.ActivateApp();
        }
    }
    private void InitCallback ()
    {
        if (FB.IsInitialized) {
            // Signal an app activation App Event
            FB.ActivateApp();
            // Continue with Facebook SDK
            // ...
            Debug.Log("FB Didnt die");
        } else {
            Debug.Log("Failed to Initialize the Facebook SDK");
        }
    }
    private void OnHideUnity (bool isGameShown)
    {
        if (!isGameShown) {
            // Pause the game - we will need to hide
            Time.timeScale = 0;
        } else {
            // Resume the game - we're getting focus again
            Time.timeScale = 1;
        }
    }
    private void AuthCallback (ThirdPartyLoginPromise promise, ILoginResult result) {
        if (!string.IsNullOrEmpty(result.Error))
        {
            promise.CompleteError(new ErrorCode(0, GameSystem.GAME_CLIENT, "Facebook Error", result.Error));
            return;
        }
        if (FB.IsLoggedIn) {
            // AccessToken class will have session details
            var aToken = PlayerSettings.Facebook.Unity.AccessToken.CurrentAccessToken;
            // Print current access token's User ID
            Debug.Log(aToken.UserId);
            // Print current access token's granted permissions
            foreach (string perm in aToken.Permissions) {
                Debug.Log(perm);
            }
            promise.CompleteSuccess(new ThirdPartyLoginResponse()
            {
                AuthToken = aToken.TokenString
            });
        } else {
            Debug.Log("User cancelled login");
            promise.CompleteSuccess(ThirdPartyLoginResponse.CANCELLED);
        }
    }
    public void StartFacebookLogin(ThirdPartyLoginPromise promise)
    {
        if (promise.ThirdParty != AuthThirdParty.Facebook) return;
        var perms = new List<string>(){"public_profile", "email"};
        FB.LogInWithReadPermissions(perms, result => AuthCallback(promise, result));
    }
}