import { getApp, getApps, initializeApp, type FirebaseApp } from "firebase/app";
import { config } from "../config";

let cachedApp: FirebaseApp | null = null;

export function getFirebaseApp(): FirebaseApp {
    if (cachedApp) return cachedApp;
    if (!config.auth.enabled) {
        throw new Error("Firebase auth not enabled");
    }
    if (!getApps().length) {
        cachedApp = initializeApp(config.auth.firebase);
    } else {
        cachedApp = getApp();
    }
    return cachedApp;
}