# author:hepochen@gmail.com  https://github.com/hepochen
"""
Weibo OAuth2 backend, docs at:
    https://python-social-auth.readthedocs.io/en/latest/backends/weibo.html
"""
from .oauth import BaseOAuth2


class WeiboOAuth2(BaseOAuth2):
    """Weibo (of sina) OAuth authentication backend"""

    name = "weibo"
    ID_KEY = "uid"
    AUTHORIZATION_URL = "https://api.weibo.com/oauth2/authorize"
    REQUEST_TOKEN_URL = "https://api.weibo.com/oauth2/request_token"
    ACCESS_TOKEN_URL = "https://api.weibo.com/oauth2/access_token"
    ACCESS_TOKEN_METHOD = "POST"
    REDIRECT_STATE = False
    EXTRA_DATA = [
        ("id", "id"),
        ("name", "username"),
        ("profile_image_url", "profile_image_url"),
        ("gender", "gender"),
    ]

    def get_user_details(self, response):
        """Return user details from Weibo. API URL is:
        https://api.weibo.com/2/users/show.json/?uid=<UID>&access_token=<TOKEN>
        """
        if self.setting("DOMAIN_AS_USERNAME"):
            username = response.get("domain", "")
        else:
            username = response.get("name", "")
        fullname, first_name, last_name = self.get_user_names(
            first_name=response.get("screen_name", "")
        )
        return {
            "username": username,
            "fullname": fullname,
            "first_name": first_name,
            "last_name": last_name,
        }

    def get_uid(self, access_token):
        """Return uid by access_token"""
        data = self.get_json(
            "https://api.weibo.com/oauth2/get_token_info",
            method="POST",
            params={"access_token": access_token},
        )
        return data["uid"]

    def user_data(self, access_token, response=None, *args, **kwargs):
        """Return user data"""
        # If user id was not retrieved in the response, then get it directly
        # from weibo get_token_info endpoint
        uid = response and response.get("uid") or self.get_uid(access_token)
        user_data = self.get_json(
            "https://api.weibo.com/2/users/show.json",
            params={"access_token": access_token, "uid": uid},
        )
        user_data["uid"] = uid
        return user_data