react-native-applovin-max/src/EventEmitter.ts

AppLovin MAX React Native Plugin for Android and iOS

import { NativeModules, NativeEventEmitter } from 'react-native';
import type { EventSubscription } from 'react-native';
import type { AdEventObject, AdEventListener } from './types/AdEvent';

const { AppLovinMAX } = NativeModules;

// Note that this is a singleton in ES6 module
const emitter = new NativeEventEmitter(AppLovinMAX);

const subscriptions: Record<string, EventSubscription> = {};

export const addEventListener = <T extends AdEventObject>(event: string, handler: AdEventListener<T>) => {
    const subscription: EventSubscription = emitter.addListener(event, handler);
    const currentSubscription = subscriptions[event];
    if (currentSubscription) {
        currentSubscription.remove();
    }
    subscriptions[event] = subscription;
};

export const removeEventListener = (event: string) => {
    const currentSubscription = subscriptions[event];
    if (currentSubscription) {
        currentSubscription.remove();
        delete subscriptions[event];
    }
};