frontend/src/config/firebase.js

/**
 * Firebase configuration and initialization
 */
import { initializeApp } from 'firebase/app';
import { getAuth, GoogleAuthProvider } from 'firebase/auth';

// Firebase configuration from environment variables
const firebaseConfig = {
  apiKey: import.meta.env.VITE_FIREBASE_API_KEY,
  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN,
  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID,
  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET,
  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID,
  appId: import.meta.env.VITE_FIREBASE_APP_ID,
};

// Initialize Firebase
const app = initializeApp(firebaseConfig);

// Initialize Firebase Authentication and get a reference to the service
export const auth = getAuth(app);

// Configure Google Auth Provider
export const googleProvider = new GoogleAuthProvider();
googleProvider.setCustomParameters({
  prompt: 'select_account'
});

export default app;