from django.contrib.auth import login, logout
from django.contrib.auth.backends import ModelBackend
from django.shortcuts import render

# Create your views here.
from rest_framework import status, permissions
from rest_framework.decorators import permission_classes
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import ModelViewSet
from workreport.models import DailyReport

# api接口调用方法
from workreport.serializex import DailyReportSerializex


class ReportView(APIView):
    # get 请求
    def get(self, request):
        # 取字段
        data = DailyReport \
            .objects \
            .values().all()

        # .values('title', 'content', 'creat_at', 'creat_by', 'id')
        # 返回请求 数据和请求状态
        return Response(data=data, status=status.HTTP_200_OK)

    # post 请求
    def post(self, request):
        # DailyReport
        data = request.data
        # 存入数据库
        # 设置保存内容
        report = DailyReport(
            title=data['title'],
            content=data['content'],
            creat_by_id=data['creat_by_id'],
        )
        report.save()  # 执行了保存操作
        return Response(status=status.HTTP_201_CREATED)

    # delete 请求
    def delete(self, request):
        data = request.data
        report = DailyReport \
            .objects \
            .filter(creat_by_id=data['creat_by_id']) \
            .delete()

        return Response(data=report, status=status.HTTP_200_OK)

    # update 请求
    def put(self, request):
        data = request.data
        report = DailyReport \
            .objects \
            .filter(creat_by_id=data['creat_by_id']) \
            .update(content="改变内容")
        return Response(data=report, status=status.HTTP_200_OK)


class DailyReportView(ModelViewSet):
    queryset = DailyReport.objects.all()
    serializer_class = DailyReportSerializex
    filter_fields = {'title': ['exact']}


@permission_classes((permissions.AllowAny,))
class LoginView(APIView):
    def post(self, request):
        data = request.data
        user = ModelBackend().authenticate(username=data['username'], password=data['password'], request=request)
        if user is None:
            return Response(data={'msg': '用户名或密码不正确'}, status=status.HTTP_404_NOT_FOUND)
        else:
            login(request, user=user, backend='django.contrib.auth.backends.ModelBackend')
        return Response(status=status.HTTP_200_OK)


class LogoutView(APIView):
    def post(self, request):
        logout(request)
        return Response(data={'msg': 'logout success！'}, status=status.HTTP_200_OK)