from __future__ import annotations

from typing import cast
from urllib.parse import urljoin

from social_core.utils import cache

from ..utils import append_slash
from .open_id_connect import OpenIdConnectAuth


class Fence(OpenIdConnectAuth):
    name = "fence"
    OIDC_ENDPOINT = "https://nci-crdc.datacommons.io"
    ID_KEY = "username"
    DEFAULT_SCOPE = ["openid", "user"]
    JWT_DECODE_OPTIONS = {"verify_at_hash": False}

    def _url(self, path):
        return urljoin(append_slash(cast("str", self.OIDC_ENDPOINT)), path)

    def authorization_url(self):
        return self._url("user/oauth2/authorize")

    def access_token_url(self):
        return self._url("user/oauth2/token")

    @cache(ttl=86400)
    def oidc_config(self):
        return self.get_json(self._url(".well-known/openid-configuration"))

    def get_user_details(self, response):
        return {
            "username": response.get("preferred_username"),
            "email": response.get("username"),
            "fullname": response.get("name"),
            "first_name": response.get("given_name"),
            "last_name": response.get("family_name"),
        }