"""
Trello OAuth1 backend, docs at:
    https://python-social-auth.readthedocs.io/en/latest/backends/trello.html
"""

from .oauth import BaseOAuth1


class TrelloOAuth(BaseOAuth1):
    """Trello OAuth authentication backend"""

    name = "trello"
    ID_KEY = "username"
    AUTHORIZATION_URL = "https://trello.com/1/OAuthAuthorizeToken"
    REQUEST_TOKEN_URL = "https://trello.com/1/OAuthGetRequestToken"
    ACCESS_TOKEN_URL = "https://trello.com/1/OAuthGetAccessToken"

    EXTRA_DATA = [
        ("username", "username"),
        ("email", "email"),
        ("fullName", "fullName"),
    ]

    def get_user_details(self, response):
        """Return user details from Trello account"""
        fullname, first_name, last_name = self.get_user_names(response.get("fullName"))
        return {
            "username": response.get("username"),
            "email": response.get("email"),
            "fullname": fullname,
            "first_name": first_name,
            "last_name": last_name,
        }

    def user_data(self, access_token):
        """Return user data provided"""
        url = "https://trello.com/1/members/me"
        try:
            return self.get_json(url, auth=self.oauth_auth(access_token))
        except ValueError:
            return None

    def auth_extra_arguments(self):
        return {
            "name": self.setting("APP_NAME", ""),
            # trello default expiration is '30days'
            "expiration": self.setting("EXPIRATION", "never"),
        }