from authlib.integrations.base_client import OAuthError
from django.conf import settings
from django.shortcuts import redirect
from sentry_sdk import capture_exception

from oauth.hep_client import HepClient
from oauth.oauth_client import oauth
from oauth.models import OAuth2Token
from oauth.user_signup_login_handler import handle_user_and_verify_products, EMAIL_NOT_VERIFIED, UNKNOWN_ERROR
from django.contrib.auth import login as dj_login

from core.logger import get_logger

logger = get_logger(__name__)

OAUTH_REDIRECT = 'oauth-redirect'


def login(request):
    hep_oauth_client = oauth.create_client('hep')
    redirect_uri = settings.OAUTH_LOCAL_REDIRECT_URI
    return hep_oauth_client.authorize_redirect(request, redirect_uri)


def authorize(request):
    hep_client = HepClient()
    try:
        token = oauth.hep.authorize_access_token(request)
        user_data = hep_client.user_details(token_dict=token)

        user, status_msg = handle_user_and_verify_products(user_data, token)
        user.sync_with_hep_data(user_data)
    except OAuthError as e:
        logger.warning(f'OAuth error: {e}')
        if not settings.DEBUG:
            capture_exception(e)
        return redirect(f'/{OAUTH_REDIRECT}?state={UNKNOWN_ERROR}')

    if user and status_msg != EMAIL_NOT_VERIFIED:
        dj_login(request, user)

    OAuth2Token.objects.update_or_create_token(token, user)

    if status_msg:
        return redirect(f'/{OAUTH_REDIRECT}?state={status_msg}')

    return redirect(f'/{OAUTH_REDIRECT}?state=success')