// we get all our firebase config from the .env file, not included in the repo, so we don't share our API keys. 
// then we initialize the app and export the database and storage so we can use them in other files  

import { initializeApp } from 'firebase/app';
import { getFirestore } from 'firebase/firestore';
import { getStorage } from 'firebase/storage';
import { getAuth } from 'firebase/auth';
import {
  PUBLIC_FIREBASE_API_KEY,
  PUBLIC_FIREBASE_AUTH_DOMAIN,
  PUBLIC_FIREBASE_PROJECT_ID,
  PUBLIC_FIREBASE_STORAGE_BUCKET,
  PUBLIC_FIREBASE_MESSAGING_SENDER_ID,
  PUBLIC_FIREBASE_APP_ID
} from '$env/static/public';

const firebaseConfig = {
  apiKey: PUBLIC_FIREBASE_API_KEY,
  authDomain: PUBLIC_FIREBASE_AUTH_DOMAIN,
  projectId: PUBLIC_FIREBASE_PROJECT_ID,
  storageBucket: PUBLIC_FIREBASE_STORAGE_BUCKET,
  messagingSenderId: PUBLIC_FIREBASE_MESSAGING_SENDER_ID,
  appId: PUBLIC_FIREBASE_APP_ID
};

const app = initializeApp(firebaseConfig);
export const db = getFirestore(app);
export const storage = getStorage(app);
export const auth = getAuth(app); // anonymous auth, gives each device a persistent UID