# -*- coding: utf-8 -*-
import requests

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


class KeycloakOAuth2Adapter(OAuth2Adapter):
    provider_id = KeycloakProvider.id
    supports_state = True

    settings = app_settings.PROVIDERS.get(provider_id, {})
    provider_base_url = '{0}/realms/{1}'.format(
        settings.get("KEYCLOAK_URL"), settings.get("KEYCLOAK_REALM"))

    access_token_url = '{0}/protocol/openid-connect/token' \
        .format(provider_base_url)
    authorize_url = '{0}/protocol/openid-connect/auth' \
        .format(provider_base_url)
    profile_url = '{0}/protocol/openid-connect/userinfo' \
        .format(provider_base_url)

    def complete_login(self, request, app, token, response):
        response = requests.post(self.profile_url, headers={
            'Authorization': 'Bearer ' + str(token)
        })
        response.raise_for_status()
        extra_data = response.json()
        extra_data['id'] = extra_data['sub']
        del extra_data['sub']

        return self.get_provider().sociallogin_from_response(
            request,
            extra_data
        )


oauth2_login = OAuth2LoginView.adapter_view(KeycloakOAuth2Adapter)
oauth2_callback = OAuth2CallbackView.adapter_view(KeycloakOAuth2Adapter)