from apps.ecm.models import Event, EventCate, Remind, NotifySetting
from apps.ecm.serializers import (EventCateCreateUpdateSerializer, EventCateListSerializer, EventCateUpdateSerializer, EventHandleSerializer,
                                  EventSerializer, RemindSerializer, NotifySettingsSerializer)
from apps.utils.viewsets import CustomGenericViewSet, CustomModelViewSet
from rest_framework.mixins import UpdateModelMixin, ListModelMixin, RetrieveModelMixin, CreateModelMixin
from django.db import transaction
from rest_framework.decorators import action
from rest_framework import serializers
from django.utils import timezone
from rest_framework.response import Response


# Create your views here.
class EventCateViewSet(CreateModelMixin, UpdateModelMixin, ListModelMixin, CustomGenericViewSet):
    perms_map = {'put': 'event_cate:update', 'post': 'event_cate:create'}
    queryset = EventCate.objects.all()
    list_serializer_class = EventCateListSerializer
    create_serializer_class = EventCateCreateUpdateSerializer
    update_serializer_class = EventCateCreateUpdateSerializer
    serializer_class = EventCateListSerializer
    filterset_fields = ['self_algo']


class NotifySettingViewSet(CustomModelViewSet):
    queryset = NotifySetting.objects.all()
    serializer_class = NotifySettingsSerializer


class EventViewSet(ListModelMixin, RetrieveModelMixin, CustomGenericViewSet):
    perms_map = {'get': 'event:view'}
    queryset = Event.objects.all()
    serializer_class = EventSerializer

    @transaction.atomic
    @action(methods=['post'], detail=True, perms_map={'post': 'event:handle'},
            serializer_class=EventHandleSerializer)
    def handle(self, request, pk=None):
        """处理事件

        处理事件
        """
        obj = self.get_object()
        data = request.data
        obj.handle_desc = data.get('handle_desc', '')
        obj.handle_user = request.user
        obj.handle_time = timezone.now()
        obj.save()
        return Response()


class RemindViewSet(ListModelMixin, CustomGenericViewSet):
    perms_map = {'get': 'envent:view'}
    queryset = Remind.objects.all()
    serializer_class = RemindSerializer

    @action(methods=['get'], detail=False, perms_map={'get': '*'})
    def my(self, request, *args, **kwargs):
        """推送给我的

        推送给我的
        """
        user = self.request.user
        queryset = self.filter_queryset(self.get_queryset().filter(recipient=user))

        page = self.paginate_queryset(queryset)
        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)

        serializer = self.get_serializer(queryset, many=True)
        return Response(serializer.data)