# coding=utf-8
from rest_framework.views import APIView
from django.db.models import Q
from django.utils import timezone
from rest_framework.decorators import action
from utils.permission import isLogin, permission_required
from utils.custom_modelviewset import CustomModelViewSet
from utils import response_ok, response_error
from utils.exceptions import CustomError
from apps.log.models import BizLog
from apps.option.models import Option
from apps.option.serializers import OptionComboboxSerializer
from .models import ReportCustomer
from .serializers import ReportCustomerSerializer
from .filters import ReportCustomerFilter


class ReportCustomerViewSet(CustomModelViewSet):
    permission_classes = [isLogin]
    queryset = ReportCustomer.objects.filter()
    serializer_class = ReportCustomerSerializer

    @permission_required('customer.view_report_customer')
    def filter_queryset(self, queryset):
        queryset = queryset.filter()
        f = ReportCustomerFilter(self.request.GET, queryset=queryset)
        return f.qs

    @permission_required('customer.add_report_customer')
    def perform_create(self, serializer):
        super(ReportCustomerViewSet, self).perform_create(serializer)
        instance = serializer.instance
        validated_data = serializer.validated_data
        BizLog.objects.addnew(self.request.user, BizLog.INSERT,
                              u'添加客户报备[%s]，id=%d' % (instance.name, instance.id), validated_data)

    @permission_required('customer.add_report_customer')
    def perform_update(self, serializer):
        super(ReportCustomerViewSet, self).perform_update(serializer)
        instance = serializer.instance
        validated_data = serializer.validated_data
        BizLog.objects.addnew(self.request.user, BizLog.UPDATE,
                              u'修改客户报备[%s]，id=%d' % (instance.name, instance.id), validated_data)

    @permission_required('customer.delete_report_customer')
    def perform_destroy(self, instance):
        BizLog.objects.addnew(self.request.user, BizLog.DELETE,
                              u'删除客户报备[%s]，id=%d' % (instance.name, instance.id))
        super(ReportCustomerViewSet, self).perform_destroy(instance)

    @permission_required('customer.check_report_customer')
    @action(methods=['post'], detail=False)
    def check(self, request, pk):
        # 审核
        report_status = request.POST.get('report_status')
        try:
            instance = ReportCustomer.objects.filter(id=pk).first()
            if not instance:
                raise CustomError('当前客户报备信息有误！')
            if report_status == ReportCustomer.REPEAT_REPORT:
                raise CustomError('当前客户报备状态为重复报备！')
            if instance.report_status == ReportCustomer.CHECKED and report_status == ReportCustomer.CHECKED:
                # 撞单
                instance.check_user = self.request.user
                instance.report_status = ReportCustomer.REPEAT_REPORT
                instance.check_time = timezone.now()
                instance.save()
            if instance.report_status == ReportCustomer.NOT_CHECKED and report_status == ReportCustomer.CHECKED:
                instance.check_user = self.request.user
                instance.report_status = ReportCustomer.CHECKED
                instance.check_time = timezone.now()
                instance.save()
            BizLog.objects.addnew(None, request.user, BizLog.INSERT,
                                  u'审核客户报备[%s]状态为[%s],id=%d' % (instance.name, report_status, instance.id))
        except CustomError as e:
            return response_error(e.get_error_msg())
        except Exception as e:
            return response_error(str(e))
        return response_ok('审核完成！')

class ReportCustomerDictView(APIView):
    permission_classes = [isLogin]

    def get(self, request):
        scouce = Option.objects.filter(type=Option.CUSTOMER_SOURCE , enable=True)
        project = Option.objects.filter(type=Option.CATEGORY, enable=True)
        serializer_scouce = OptionComboboxSerializer(scouce, many=True)
        serializer_project = OptionComboboxSerializer(project, many=True)
        return response_ok({
            'source': serializer_scouce.data,
            'project': serializer_project.data,
        })