import os.path
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from google_manager.constants import SCOPES

from starlette.responses import RedirectResponse
from gradio.routes import App

import google.oauth2.credentials
import google_auth_oauthlib.flow


def authenticate(SCOPES):
    """
    Request access for the google docs api
    """
    creds = None

    if os.path.exists("token.json"):
        creds = Credentials.from_authorized_user_file("token.json", SCOPES)

    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file("credentials.json", SCOPES)
            creds = flow.run_local_server(port=7200)

        # Save the credentials for the next run
        with open("token.json", "w") as token:
            token.write(creds.to_json())

    return creds


def get_oauth_url(SCOPES, redirect_url):
    flow = google_auth_oauthlib.flow.Flow.from_client_secrets_file(
        "credentials.json", scopes=SCOPES
    )

    # flow.redirect_uri = "http://127.0.0.1:8000/gradio/?__theme=dark"
    # flow.redirect_uri = app.url_path_for(redirect_url)
    flow.redirect_uri = redirect_url

    # Generate URL for request to Google's OAuth 2.0 server.
    # Use kwargs to set optional request parameters.
    authorization_url, state = flow.authorization_url(
        # Enable offline access so that you can refresh an access token without
        # re-prompting the user for permission. Recommended for web server apps.
        access_type="offline",
        # Enable incremental authorization. Recommended as a best practice.
        include_granted_scopes="true",
    )
    print("state")
    print(state)

    return authorization_url


def authenticate_production(SCOPES):
    creds = None

    if os.path.exists("token.json"):
        creds = Credentials.from_authorized_user_file("token.json", SCOPES)

    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file("credentials.json", SCOPES)
            creds = flow.run_local_server(port=7200)

        # Save the credentials for the next run
        with open("token.json", "w") as token:
            token.write(creds.to_json())

    return creds