Ember simple-auth AuthenticatedRouteMixin or UnauthenticatedRouteMixin on route depending on condition

I have a route that should be AuthenticatedRouteMixin or UnauthenticatedRouteMixin depending on the response coming back from the server. How do I implement this?

Presently, I have a route with AuthenticatedRouteMixin and I am forcing the route to be authenticated and de-authenticated by overriding my beforeModel and implementing the willTransition action as follows.

beforeModel() {
  this.set('session.isAuthenticated', true);
  return this._super(...arguments);
}

And

  actions: {
    willTransition: function(){
      if (Ember.isEmpty(_this.get('session.data.authenticated.token')))
      {
        this.set('session.isAuthenticated', false);
      }
    }
  }

However, there are two issues with this.

1. It looks and feels wrong. There is probably a better way to do this.

2. There are some unintended consequences to this. If not logged in and then try to login, a user needs to refresh the page before it redirects to the appropriate page. I looked into the simple-auth code and a transitionTo function is not acting as expected.

   sessionAuthenticated() {
     const attemptedTransition = this.get('session.attemptedTransition');
   
     if (attemptedTransition) {
       attemptedTransition.retry();
       this.set('session.attemptedTransition', null);
     } else {
       this.transitionTo(Configuration.routeAfterAuthentication);
     }
   }
   
   

this.transitionTo(Configuration.routeAfterAuthentication); is the line that is not transitioning. I have verified that Configuration.routeAfterAuthentication is set correctly.

I may force a reload at the login route or where ever route a user navigates to, but (I think) because of issue 2 above, I am running into infinite redirects.

I would love to do something like the following:

import AuthenticatedRouteMixin from 'ember-simple-auth/mixins/authenticated-route-mixin';
import UnauthenticatedRouteMixin from 'ember-simple-auth/mixins/unauthenticated-route-mixin';

const { service } = Ember.inject;

var mixin;
if (service('session').isAuthenticated){
  mixin = AuthenticatedRouteMixin;
}
else{
  mixin = UnauthenticatedRouteMixin;
}

export default Ember.Route.extend(mixin, { ... })

However, I am not getting info from the session. I am not sure but maybe the specific Ember.Route needs to be loaded to get that info.

Any help would greatly be appreciated.