"""
Meetup OAuth2 backend, docs at:
    https://python-social-auth.readthedocs.io/en/latest/backends/meetup.html
"""

from .oauth import BaseOAuth2


class MeetupOAuth2(BaseOAuth2):
    """Meetup OAuth2 authentication backend"""

    name = "meetup"
    AUTHORIZATION_URL = "https://secure.meetup.com/oauth2/authorize"
    ACCESS_TOKEN_URL = "https://secure.meetup.com/oauth2/access"
    ACCESS_TOKEN_METHOD = "POST"
    DEFAULT_SCOPE = ["basic"]
    SCOPE_SEPARATOR = ","
    REDIRECT_STATE = False
    STATE_PARAMETER = "state"

    def get_user_details(self, response):
        """Return user details from Meetup account"""
        fullname, first_name, last_name = self.get_user_names(response.get("name"))

        return {
            "username": response.get("username"),
            "email": response.get("email") or "",
            "fullname": fullname,
            "first_name": first_name,
            "last_name": last_name,
        }

    def user_data(self, access_token, *args, **kwargs):
        """Loads user data from service"""
        return self.get_json(
            "https://api.meetup.com/2/member/self",
            params={"access_token": access_token},
        )