"""
Django OAuth Toolkit scopes backend for the gooyal-dynamic-scopes package.
"""

from django.conf import settings
from django.utils import module_loading

from oauth2_provider.scopes import BaseScopes

from .models import Scope


class Scopes(BaseScopes):
    """
    Scopes backend that provides scopes from a Django model.
    """

    def get_queryset(self, application=None):
        queryset = Scope.objects.all()
        if application:
            queryset = queryset.filter(name__in=application.allowed_scopes).order_by('resource__uuid')
        return queryset


    def get_all_scopes(self):
        return {scope.final_name: scope.final_description for scope in self.get_queryset().all()}

    def get_available_scopes(self, application=None, request=None, *args, **kwargs):
        scopes = [scope.final_name for scope in self.get_queryset(application).all()]
        return scopes

    def get_default_scopes(self, application=None, request=None, *args, **kwargs):
        return [scope.final_name for scope in self.get_queryset(application).filter(is_default=True).all()]