import structlog
from rest_framework.decorators import api_view
from rest_framework.exceptions import PermissionDenied
from rest_framework.response import Response

from vbv_lernwelt.assignment.models import AssignmentCompletion
from vbv_lernwelt.course.permissions import is_course_session_expert

logger = structlog.get_logger(__name__)


@api_view(["GET"])
def request_assignment_completion_status(request, assignment_id, course_session_id):
    # TODO quickfix before GraphQL...
    if is_course_session_expert(request.user, course_session_id):
        qs = AssignmentCompletion.objects.filter(
            course_session_id=course_session_id,
            assignment_id=assignment_id,
        ).values("id", "assignment_user_id", "completion_status", "evaluation_grade")
        return Response(status=200, data=qs)

    raise PermissionDenied()