"""
Quizlet OAuth2 Sign-in backend, docs at:
    https://python-social-auth.readthedocs.io/en/latest/backends/quizlet.html
"""

from .oauth import BaseOAuth2


class QuizletOAuth2(BaseOAuth2):
    """Quizlet OAuth2"""

    name = "quizlet"
    ID_KEY = "user_id"
    API_URL = "https://api.quizlet.com/2.0/"
    AUTHORIZATION_URL = "https://quizlet.com/authorize"
    ACCESS_TOKEN_URL = "https://api.quizlet.com/oauth/token"
    ACCESS_TOKEN_METHOD = "POST"
    SCOPE_SEPARATOR = " "
    DEFAULT_SCOPE = ["read"]

    def get_user_details(self, response):
        """Return user details from Quizlet account"""
        return {"username": response.get("user_id")}