AdsController : How to manage ads system

Hi guys !

What is the best way to handle the results of an ad ? And when you have multiple functions calling this ad how to handle the callback ?

I'm working on this and at this time i have :

• An AdsController : Regroup the methods for show bannier, fullscreen ad, and rewarded ad.

  ---

  It's called by this way :

     IUnityAdsListener listener;
   
       public void ShowAd(AdType adType, IUnityAdsListener _listener)
       {
           if (listener != null)
           {
               Advertisement.RemoveListener(listener);
           }
   
           listener = _listener;
           Advertisement.AddListener(listener);
   
           switch (adType)
           {
               case AdType.FullScreen:
                   ShowInterstitial();
                   break;
               case AdType.Rewarded:
                   ShowRewarded();
                   break;
               case AdType.Banner:
                   //TODO : Show banner
                   break;
           }
       }
   
  
  
  

  ---

On the main script, for example in the HealthController, to revive the player. I Add the IUnityAdsListener and call the function "Show Ad" and passing "this" (the IUnityAdsListener just implemented).

This way works pretty good, but i don't know if is an other way to do it a bit more easy to manage. Thanks for your time :D