Web: Race condition with initializeFirebase

[ncoder]

Describe the bug
FirebaseAnaltyics behaves badly if don't wait for initializeFirebase to return, and call trackEvent.

To Reproduce

export async function initFirebase() {
    return FirebaseAnalytics.initializeFirebase(firebaseConfig).then(() => {
        FirebaseAnalytics.setCollectionEnabled({
            enabled: true,
        });
    })
}

export const firebaseReady = initFirebase()

## if you call FirebaseAnalytics.trackEvent() here, without waiting for firebaseReady, you'll get a warning that firebase was initialized twice, and the setCollectionEnabled call will fail.

Expected behavior
There are already some readyhandlers coded in FirebaseAnalyticsWeb. i expect them to take care of this situation automatically.
Eg:
If you call trackEvent before initializeFirebase, i expect them to error.
if you call trackEvent after initializeFirebase, but before it's complete... it should wait on the promise internally and exectute.

At a minimum, it should give a more appropriate error message.

version info
@capacitor-community/firebase-analytics: 4.0.0,
@capacitor/core: 4.5.0,

[georgiarnaudov]

Faced an identical issue. Here's how I tackled it. Hope it helps.

(async () => {
  dayjs.locale(activeLocale);

  if (Capacitor.getPlatform() === "web") {
    console.log("Firebase Analytics Initializing...");

    await FirebaseAnalytics.initializeFirebase({
      apiKey: "AIzaSyCUUQE4ntyjztCMSjWSpmoO0TtXHSCWop8",
      authDomain: "shredy-test.firebaseapp.com",
      databaseURL: "https://shredy-test.firebaseio.com",
      projectId: "shredy-test",
      storageBucket: "shredy-test.appspot.com",
      messagingSenderId: "799608757722",
      appId: "1:799608757722:web:ec6ed28de552a4bfe574e3",
      measurementId: "G-04CYHDSB4K",
    });

    await FirebaseAnalytics.setCollectionEnabled({
      enabled: true,
    });

    console.log("Firebase Analytics Initialized");
  }

  ReactDOM.render(<App />, document.getElementById("root"));

  // Call the element loader after the app has been rendered the first time
  defineCustomElements(window);
})();