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

from .oauth import BaseOAuth2


class BoxOAuth2(BaseOAuth2):
    """Box.net OAuth authentication backend"""

    name = "box"
    AUTHORIZATION_URL = "https://www.box.com/api/oauth2/authorize"
    ACCESS_TOKEN_METHOD = "POST"
    ACCESS_TOKEN_URL = "https://www.box.com/api/oauth2/token"
    REVOKE_TOKEN_URL = "https://www.box.com/api/oauth2/revoke"
    SCOPE_SEPARATOR = ","
    REDIRECT_STATE = False
    EXTRA_DATA = [
        ("refresh_token", "refresh_token", True),
        ("id", "id"),
        ("expires", "expires"),
    ]

    def do_auth(self, access_token, response=None, *args, **kwargs):
        response = response or {}
        data = self.user_data(access_token)

        data["access_token"] = response.get("access_token")
        data["refresh_token"] = response.get("refresh_token")
        data["expires"] = response.get("expires_in")
        kwargs.update({"backend": self, "response": data})
        return self.strategy.authenticate(*args, **kwargs)

    def get_user_details(self, response):
        """Return user details Box.net account"""
        fullname, first_name, last_name = self.get_user_names(response.get("name"))
        return {
            "username": response.get("login"),
            "email": response.get("login") or "",
            "fullname": fullname,
            "first_name": first_name,
            "last_name": last_name,
        }

    def user_data(self, access_token, *args, **kwargs):
        """Loads user data from service"""
        params = self.setting("PROFILE_EXTRA_PARAMS", {})
        params["access_token"] = access_token
        return self.get_json("https://api.box.com/2.0/users/me", params=params)

    def refresh_token(self, token, *args, **kwargs):
        params = self.refresh_token_params(token, *args, **kwargs)
        request = self.request(
            self.REFRESH_TOKEN_URL or self.ACCESS_TOKEN_URL,
            data=params,
            headers=self.auth_headers(),
            method="POST",
        )
        return self.process_refresh_token_response(request, *args, **kwargs)