auth_handler.py

import streamlit as st
import firebase_admin
from firebase_admin import auth, credentials

# Ensure Firebase is initialized once
if not firebase_admin._apps:
    cred = credentials.Certificate("serviceAccountKey.json")
    firebase_admin.initialize_app(cred)

def register_user(email, password):
    """Registers a new user with Firebase Authentication."""
    try:
        user = auth.create_user(email=email, password=password)
        st.success(f"Account created for {email}")
        return user
    except Exception as e:
        st.error(f"Error: {e}")

def login_user(email, password):
    """Simulates login (Firebase Admin SDK can't verify passwords directly)."""
    st.warning("⚠️ Login password check requires Firebase Client SDK.")
    st.info("For now, enter your email and we’ll use it to separate your data.")
    return {"email": email}