app.py

import streamlit as st
from requests_oauthlib import OAuth2Session
import os  # For loading credentials from environment variables

# ************ SECURITY: Replace placeholders with your actual credentials ***************
CLIENT_ID = os.environ.get('GOOGLE_CLIENT_ID')  # Obtain from Google Cloud Console
CLIENT_SECRET = os.environ.get('GOOGLE_CLIENT_SECRET')  # Obtain from Google Cloud Console
REDIRECT_URI = 'https://your-huggingface-space-app-url.hf.space'  # Must match Google Project setting
# ************************************************************************************

# OAuth Configuration
AUTHORIZATION_BASE_URL = 'https://accounts.google.com/o/oauth2/v2/auth'
TOKEN_URL = 'https://www.googleapis.com/oauth2/v4/token'
SCOPES = ['https://www.googleapis.com/auth/webmasters.readonly']

# Streamlit UI 
st.title("Search Analytics Viewer")
site_url = st.text_input("Enter your website URL:", "https://www.example.com")
start_date = st.date_input("Start Date")
end_date = st.date_input("End Date")

if st.button("Fetch Data"):
    # Initiate OAuth Flow
    google_oauth = OAuth2Session(CLIENT_ID, scopes=SCOPES, redirect_uri=REDIRECT_URI)
    authorization_url, state = google_oauth.authorization_url(AUTHORIZATION_BASE_URL, access_type="offline", prompt="select_account")
    st.write("Please authenticate with Google:", authorization_url)

    # Handle Redirect
    redirect_response = st.text_input("Paste the full redirect URL here:")
    token = google_oauth.fetch_token(TOKEN_URL, client_secret=CLIENT_SECRET, authorization_response=redirect_response)

    # Use Authorized Session to Make API Requests
    credentials = google_oauth.authorized
    service = build('webmasters', 'v3', credentials=credentials)

    request = {
        'startDate': start_date.strftime("%Y-%m-%d"), 
        'endDate': end_date.strftime("%Y-%m-%d"),
        'dimensions': ['query', 'page'],
        'siteUrl': site_url 
    }
    response = service.searchanalytics().query(siteUrl=request['siteUrl'], body=request).execute()

    # Display Search Analytics Data (Customize this!)
    if 'rows' in response:
        st.dataframe(response['rows']) 
    else:
        st.write('No data found')