Update app.py

app.py

@@ -6,6 +6,29 @@ import uuid
 import firebase_admin
 from firebase_admin import credentials, firestore
 
+# ------------------ Authentication ------------------
+VALID_USERS = {
+    "[email protected]": "Pass.123",
+}
+
+def login():
+    st.title("🔐 Login Required")
+    email = st.text_input("Email")
+    password = st.text_input("Password", type="password")
+    if st.button("Login"):
+        if VALID_USERS.get(email) == password:
+            st.session_state.authenticated = True
+            st.rerun()
+        else:
+            st.error("❌ Incorrect email or password.")
+
+if "authenticated" not in st.session_state:
+    st.session_state.authenticated = False
+
+if not st.session_state.authenticated:
+    login()
+    st.stop()
+
 # 🔐 Firebase setup
 if not firebase_admin._apps:
     cred = credentials.Certificate("firebase-service-account.json")