#!/usr/bin/env python3
"""
Simple token generation with automatic port selection
"""

import os
import json
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

def get_token():
    """Get refresh token with automatic port selection"""
    print("🔐 Getting Google Drive Token...")
    
    try:
        SCOPES = ['https://www.googleapis.com/auth/drive.file']
        creds = None
        
        # Check if token.json exists
        if os.path.exists('token.json'):
            print("📁 Found existing token.json")
            creds = Credentials.from_authorized_user_file('token.json', SCOPES)
        
        # If no valid credentials, request authorization
        if not creds or not creds.valid:
            if creds and creds.expired and creds.refresh_token:
                print("🔄 Refreshing expired token...")
                creds.refresh(Request())
            else:
                print("🌐 Starting OAuth flow...")
                flow = InstalledAppFlow.from_client_secrets_file(
                    'credentials.json', SCOPES)
                # Let it choose an available port automatically
                creds = flow.run_local_server(port=0, open_browser=True)
            
            # Save credentials
            with open('token.json', 'w') as token:
                token.write(creds.to_json())
            print("💾 Token saved!")
        
        # Get refresh token
        refresh_token = creds.refresh_token
        
        if refresh_token:
            print("\n✅ SUCCESS!")
            print(f"🔑 Refresh Token: {refresh_token}")
            
            # Show all credentials
            with open('credentials.json', 'r') as f:
                creds_data = json.load(f)
            
            if 'web' in creds_data:
                client_id = creds_data['web']['client_id']
                client_secret = creds_data['web']['client_secret']
                
                print("\n📋 Add these to your HF Space secrets:")
                print(f"GOOGLE_CLIENT_ID = {client_id}")
                print(f"GOOGLE_CLIENT_SECRET = {client_secret}")
                print(f"GOOGLE_REFRESH_TOKEN = {refresh_token}")
            
            return True
        else:
            print("❌ No refresh token found")
            return False
            
    except Exception as e:
        print(f"❌ Error: {e}")
        return False

if __name__ == "__main__":
    get_token()