# coding=utf-8
import json
import traceback
from django.db.models import Sum, F
from rest_framework.decorators import action
from rest_framework.serializers import ValidationError
from rest_framework.views import APIView
from django.db import transaction
from django.db.models import Q
from utils.custom_modelviewset import CustomModelViewSet
from utils import response_ok, response_error
from utils.permission import IsAdministrator, IsStaff
from apps.examination.exam.serializers import *
from apps.examination.exam.filters import *
from apps.system.models import SysLog
from apps.foundation.serializers import SubjectSerializer, ChapterSerializer, SubjectSimpleSerializer, \
    ChapterSimpleSerializer, Subject
from apps.examination.exampaper.filters import ExamPaper, ExamPaperFilter
from apps.examination.exampaper.serializers import StaffExamPaperSerializer

class ExamPaperViewSet(CustomModelViewSet):
    permission_classes = [IsStaff, ]
    queryset = ExamPaper.objects.filter(delete=False)
    serializer_class = StaffExamPaperSerializer

    def filter_queryset(self, queryset):
        f = ExamPaperFilter(self.request.GET, queryset=queryset, request=self.request)
        return f.qs

class ExamLogViewSet(CustomModelViewSet):
    permission_classes = [IsStaff, ]
    queryset = ExamLog.objects.filter(delete=False)
    serializer_class = StaffExamLogSerializer

    def filter_queryset(self, queryset):
        # queryset = queryset.filter(user=self.request.user)
        f = FormalExamLogFilter(self.request.GET, queryset=queryset)
        return f.qs

class DictView(APIView):
    permission_classes = [IsStaff, ]

    def get(self, request):
        subjects = Subject.objects.filter(delete=False)
        serializers = SubjectSerializer(subjects, many=True)
        return response_ok(serializers.data)