"""Kakao SSO Oauth Helper class."""

from typing import TYPE_CHECKING, ClassVar, Optional

from fastapi_sso.sso.base import DiscoveryDocument, OpenID, SSOBase

if TYPE_CHECKING:
    import httpx  # pragma: no cover


class KakaoSSO(SSOBase):
    """Class providing login using Kakao OAuth."""

    provider = "kakao"
    scop: ClassVar = ["openid"]
    version = "v2"

    async def get_discovery_document(self) -> DiscoveryDocument:
        return {
            "authorization_endpoint": "https://kauth.kakao.com/oauth/authorize",
            "token_endpoint": "https://kauth.kakao.com/oauth/token",
            "userinfo_endpoint": f"https://kapi.kakao.com/{self.version}/user/me",
        }

    async def openid_from_response(self, response: dict, session: Optional["httpx.AsyncClient"] = None) -> OpenID:
        return OpenID(display_name=response["properties"]["nickname"], provider=self.provider)