"""
Ejecuta este script una sola vez para obtener el Refresh Token de Google Ads.
Requiere tener CLIENT_ID y CLIENT_SECRET en el .env.

Uso:
    python get_refresh_token.py
"""

from google_auth_oauthlib.flow import InstalledAppFlow
from dotenv import load_dotenv
import os

load_dotenv()

CLIENT_ID = os.environ["GOOGLE_ADS_CLIENT_ID"]
CLIENT_SECRET = os.environ["GOOGLE_ADS_CLIENT_SECRET"]

SCOPES = ["https://www.googleapis.com/auth/adwords"]

client_config = {
    "installed": {
        "client_id": CLIENT_ID,
        "client_secret": CLIENT_SECRET,
        "redirect_uris": ["urn:ietf:wg:oauth:2.0:oob", "http://localhost"],
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://oauth2.googleapis.com/token",
    }
}

flow = InstalledAppFlow.from_client_config(client_config, scopes=SCOPES)
credentials = flow.run_local_server(port=0)

print("\n✓ Refresh Token obtenido:")
print(credentials.refresh_token)
print("\nPégalo en tu .env como:")
print(f"GOOGLE_ADS_REFRESH_TOKEN={credentials.refresh_token}")