import json
import random
import warnings
from calendar import timegm
from datetime import datetime

import requests
from django.db.models import Q
from django_filters.rest_framework import DjangoFilterBackend
from openpyxl import Workbook, load_workbook
from rest_framework import status
from rest_framework.decorators import action
from rest_framework.filters import OrderingFilter, SearchFilter
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import ModelViewSet
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from rest_framework_jwt.serializers import (jwt_encode_handler,
                                            jwt_payload_handler)
from rest_framework_jwt.settings import api_settings
# Create your views here.

from .models import Article
from .serializers import ArticelSerializer, ArticelListSerializer
from utils.custom import CommonPagination
class ArticleViewSet(ModelViewSet):
    """
    文章：增删改查
    """
    perms_map = [
        {'get': 'article_list'}, {'post': 'article_create'},
        {'put': 'article_update'}, {'delete': 'article_delete'}]
    queryset = Article.objects.filter(is_delete=0).all()
    serializer_class = ArticelSerializer
    pagination_class = CommonPagination
    filter_backends = [DjangoFilterBackend,SearchFilter, OrderingFilter]
    search_fields = ('^title','^content')
    ordering_fields = ('title','update_time')
    ordering = ['-is_top', '-update_time']

    def get_serializer_class(self):
        if self.action=='list':
            return ArticelListSerializer
        else:
            return ArticelSerializer
    
    @action(methods=['put'], detail=True, url_name='top_article', perms_map=[{'*':'top_article'}])
    def top(self, request, *args, **kwargs):
        '''
        置顶文章
        '''
        instance = self.get_object()
        instance.is_top = False if instance.is_top else True
        instance.save()
        return Response(status=status.HTTP_200_OK)