Interstitial Ads

import { useEffect, useRef, useState } from "react";
import { StyleSheet } from "react-native";
// For import statements, refer to the tabs above
import { AdDisplayFailedInfo, AdInfo, AdLoadFailedInfo, AdRevenueInfo, InterstitialAd } from "react-native-daro-m";
import { ThemedButton } from "../ThemedButton";

enum AdLoadState {
  notLoaded = 'NOT_LOADED',
  loading = 'LOADING',
  loaded = 'LOADED',
}

type Props = {
  adUnitId: string;
  isInitialized: boolean;
  log: (str: string) => void;
};

const MAX_EXPONENTIAL_RETRY_COUNT = 3;

const InterstitialAdExample = ({ adUnitId, isInitialized, log }: Props) => {
  const [adLoadState, setAdLoadState] = useState<AdLoadState>(AdLoadState.notLoaded);
  const retryAttempt = useRef(0);

  useEffect(() => {
    InterstitialAd.addAdLoadedEventListener((adInfo: AdInfo) => {
      setAdLoadState(AdLoadState.loaded);
      retryAttempt.current = 0;
      log(`Interstitial ad loaded`);
    });

    InterstitialAd.addAdImpressionRecordedListener((adInfo: AdRevenueInfo) => {
      log(`Interstitial ad revenue paid`);
    });

    InterstitialAd.addAdClickedEventListener((adInfo: AdInfo) => {
      log(`Interstitial ad clicked`);
    });

    // Handle ad load failure
    InterstitialAd.addAdLoadFailedEventListener((errorInfo: AdLoadFailedInfo) => {
      setAdLoadState(AdLoadState.notLoaded)

      if (retryAttempt.current > MAX_EXPONENTIAL_RETRY_COUNT) {
        log('Interstitial ad failed to load with code ' + errorInfo.code);
        return;
      }

      // Interstitial ad failed to load
      // We recommend retrying with exponentially higher delays up to a maximum delay (in this case 64 seconds)
      retryAttempt.current += 1;

      const retryDelay = Math.pow(2, Math.min(MAX_EXPONENTIAL_RETRY_COUNT, retryAttempt.current));
      log('Interstitial ad failed to load with code ' + errorInfo.code + ' - retrying in ' + retryDelay + 's');

      setTimeout(() => {
        setAdLoadState(AdLoadState.loading);
        log('Interstitial ad retrying to load...');
        InterstitialAd.loadAd(adUnitId);
      }, retryDelay * 1000);
    });

    InterstitialAd.addAdDisplayedEventListener((adInfo: AdInfo) => {
      log(`Interstitial ad displayed`);
    });

    InterstitialAd.addAdFailedToDisplayEventListener((adInfo: AdDisplayFailedInfo) => {
      setAdLoadState(AdLoadState.notLoaded);
      log(`Interstitial ad failed to display`);
    });

    InterstitialAd.addAdHiddenEventListener((adInfo: AdInfo) => {
      setAdLoadState(AdLoadState.notLoaded);
      log(`Interstitial ad hidden`);
    });

  }, [adUnitId]);

  const getInterstitialButtonTitle = () => {
    if (adLoadState === AdLoadState.notLoaded) {
      return 'Load Interstitial';
    } else if (adLoadState === AdLoadState.loading) {
      return 'Loading...';
    } else {
      return 'Show Interstitial'; // adLoadState.loaded
    }
  };
  return (
    <ThemedButton
      isEnabled={isInitialized && adLoadState !== AdLoadState.loading}
      isLoading={adLoadState === AdLoadState.loading}
      title={getInterstitialButtonTitle()}
      onPress={async () => {
        const isInterstitialReady = await InterstitialAd.isAdReady(adUnitId);
        if (isInterstitialReady) {
          InterstitialAd.showAd(adUnitId);
      } else {
        log('Loading interstitial ad...');
        setAdLoadState(AdLoadState.loading);
        InterstitialAd.loadAd(adUnitId);
      }
    }} />
  );
}

const styles = StyleSheet.create({
  button: {
    margin: 5,
  },
});

export default InterstitialAdExample;