import requests
from urllib.parse import urljoin

from allauth.socialaccount import app_settings
from allauth.socialaccount.providers.oauth2.views import (
    OAuth2Adapter,
    OAuth2CallbackView,
    OAuth2LoginView,
)

from .provider import AuthentiqProvider


class AuthentiqOAuth2Adapter(OAuth2Adapter):
    provider_id = AuthentiqProvider.id

    settings = app_settings.PROVIDERS.get(provider_id, {})

    provider_url = settings.get('PROVIDER_URL',
                                'https://connect.authentiq.io/')
    if not provider_url.endswith('/'):
        provider_url += '/'

    access_token_url = urljoin(provider_url, 'token')
    authorize_url = urljoin(provider_url, 'authorize')
    profile_url = urljoin(provider_url, 'userinfo')

    def complete_login(self, request, app, token, **kwargs):
        auth = {'Authorization': 'Bearer ' + token.token}
        resp = requests.get(self.profile_url, headers=auth)
        resp.raise_for_status()
        extra_data = resp.json()
        login = self.get_provider() \
            .sociallogin_from_response(request, extra_data)
        return login


oauth2_login = OAuth2LoginView.adapter_view(AuthentiqOAuth2Adapter)
oauth2_callback = OAuth2CallbackView.adapter_view(AuthentiqOAuth2Adapter)