import logging

from oauth2_provider.contrib.rest_framework import TokenMatchesOASRequirements, OAuth2Authentication
from rest_framework.permissions import (
    IsAuthenticated
)

loger = logging.getLogger("oauth2_provider")


class IsAuthenticatedOrTokenMatchesOASRequirements(TokenMatchesOASRequirements):
    def has_permission(self, request, view):
        is_authenticated = IsAuthenticated().has_permission(request, view)
        oauth2authenticated = False
        if is_authenticated:
            oauth2authenticated = isinstance(request.successful_authenticator, OAuth2Authentication)

        token_has_scope = TokenMatchesOASRequirements()
        return (is_authenticated and not oauth2authenticated) or token_has_scope.has_permission(request, view)