import 'package:flutter/foundation.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:mzansi_innovation_hub/mih_config/mih_env.dart';

class MihBannerAdProvider extends ChangeNotifier {
  BannerAd? bannerAd;
  final adUnitId = AppEnviroment.bannerAdUnitId;
  bool isBannerAdLoaded = false;
  String errorMessage = '';

  MihBannerAdProvider({
    this.bannerAd,
    this.isBannerAdLoaded = false,
    this.errorMessage = '',
  });

  void reset() {
    bannerAd = null;
    isBannerAdLoaded = false;
    errorMessage = "";
    notifyListeners();
  }

  @override
  void dispose() {
    bannerAd?.dispose();
    super.dispose();
  }

  void loadBannerAd() {
    if (bannerAd != null) {
      bannerAd!.dispose();
      bannerAd = null;
      isBannerAdLoaded = false;
    }
    bannerAd = BannerAd(
      adUnitId: adUnitId,
      request: const AdRequest(),
      size: AdSize.banner,
      listener: BannerAdListener(
        onAdLoaded: (ad) {
          debugPrint('$ad loaded.');
          isBannerAdLoaded = true;
          notifyListeners();
        },
        onAdFailedToLoad: (ad, err) {
          debugPrint('BannerAd failed to load: $err');
          errorMessage =
              'Failed to load ad- Message: ${err.message} Code :${err.code}';
          ad.dispose(); // Dispose the ad to free resources
          isBannerAdLoaded = false; // ⬅️ Explicitly set to false
          bannerAd = null; // ⬅️ Explicitly set to null
          notifyListeners();
        },
        onAdOpened: (Ad ad) => debugPrint('$ad opened.'),
        onAdClosed: (Ad ad) => debugPrint('$ad closed.'),
        onAdImpression: (Ad ad) => debugPrint('$ad impression.'),
      ),
    );
    bannerAd!.load();
  }
}