from allauth.socialaccount import app_settings
from allauth.socialaccount.adapter import get_adapter
from allauth.socialaccount.providers.oauth2.views import (
    OAuth2Adapter,
    OAuth2CallbackView,
    OAuth2LoginView,
)

from .provider import BitbucketOAuth2Provider


class BitbucketOAuth2Adapter(OAuth2Adapter):
    provider_id = BitbucketOAuth2Provider.id
    access_token_url = "https://bitbucket.org/site/oauth2/access_token"
    authorize_url = "https://bitbucket.org/site/oauth2/authorize"
    profile_url = "https://api.bitbucket.org/2.0/user"
    emails_url = "https://api.bitbucket.org/2.0/user/emails"

    def complete_login(self, request, app, token, **kwargs):
        resp = (
            get_adapter()
            .get_requests_session()
            .get(self.profile_url, params={"access_token": token.token})
        )
        extra_data = resp.json()
        if app_settings.QUERY_EMAIL and not extra_data.get("email"):
            extra_data["email"] = self.get_email(token)
        return self.get_provider().sociallogin_from_response(request, extra_data)

    def get_email(self, token):
        """Fetches email address from email API endpoint"""
        resp = (
            get_adapter()
            .get_requests_session()
            .get(self.emails_url, params={"access_token": token.token})
        )
        emails = resp.json().get("values", [])
        email = ""
        try:
            email = emails[0].get("email")
            primary_emails = [e for e in emails if e.get("is_primary", False)]
            email = primary_emails[0].get("email")
        except (IndexError, TypeError, KeyError):
            return ""
        finally:
            return email


oauth_login = OAuth2LoginView.adapter_view(BitbucketOAuth2Adapter)
oauth_callback = OAuth2CallbackView.adapter_view(BitbucketOAuth2Adapter)