from rest_framework import exceptions, serializers
from rest_framework.mixins import CreateModelMixin, DestroyModelMixin, ListModelMixin, RetrieveModelMixin, UpdateModelMixin
from apps.mtm.models import RecordFormField
from apps.qm.export import exprot_test_record
from apps.qm.serializers import StandardCreateUpdateSerializer, StandardSerializer, TestItemCreateUpdateSerializer, TestItemSerializer, TestRecordCreateSerializer, TestRecordDetailSerializer, TestRecordListSerializer, TestRecordUpdateSerializer
from apps.qm.models import Standard, TestItem, TestRecord, TestRecordItem
from django.shortcuts import render
from rest_framework.viewsets import GenericViewSet, ModelViewSet
from apps.system.mixins import CreateUpdateModelAMixin
from rest_framework.exceptions import APIException
from rest_framework.response import Response
from rest_framework import status
from django.db import transaction
from rest_framework.decorators import action

from apps.wpm.models import WProduct
from apps.wpm.services import WpmService
from rest_framework.exceptions import ParseError
# Create your views here.
class StandardViewSet(CreateUpdateModelAMixin, ModelViewSet):
    """
    标准规范-增删改查
    """
    perms_map = {'*': '*'}
    queryset = Standard.objects.select_related('file').all()
    serializer_class = StandardSerializer
    search_fields = ['name', 'number']
    filterset_fields = []
    ordering_fields = ['number']
    ordering = ['id']

    def get_serializer_class(self):
        if self.action in ['create', 'update']:
            return StandardCreateUpdateSerializer
        return StandardSerializer

class TestItemViewSet(CreateUpdateModelAMixin, ModelViewSet):
    """
    检验项目增删改查
    """
    perms_map = {'*': '*'}
    queryset = TestItem.objects.select_related('standard').all()
    serializer_class = TestItemSerializer
    search_fields = ['name', 'standard__name', 'standard__number']
    filterset_fields = ['standard']
    ordering_fields = ['id']
    ordering = ['id']

    def get_serializer_class(self):
        if self.action in ['create', 'update']:
            return TestItemCreateUpdateSerializer
        return TestItemSerializer

class TestRecordViewSet(ListModelMixin, UpdateModelMixin, RetrieveModelMixin, DestroyModelMixin, GenericViewSet):
    """
    检验记录
    """
    perms_map = {'get': '*', 'put':'testrecord_update', 'delete':'testrecord_delete'}
    queryset = TestRecord.objects.select_related('fifo_item', 'form').prefetch_related('item_test_record').all()
    serializer_class = TestRecordListSerializer
    filterset_fields = ['wproduct', 'material', 'step', 'subproduction_plan', 'fifo_item', 'origin_test', 'type']
    ordering = ['-id']

    def get_serializer_class(self):
        if self.action == 'list':
            return TestRecordListSerializer
        elif self.action == 'retrieve':
            return TestRecordDetailSerializer
        elif self.action == 'update':
            return TestRecordUpdateSerializer
        return super().get_serializer_class()

    def update(self, request, *args, **kwargs):
        obj = self.get_object()
        if obj.is_submited and obj.is_midtesting is False:
            raise exceptions.APIException('该记录已提交不可编辑')
        return super().update(request, *args, **kwargs)
        
    def destroy(self, request, *args, **kwargs):
        obj = self.get_object()
        if obj.is_submited:
            raise exceptions.APIException('该记录已提交不可删除')
        WpmService.add_wproduct_flow_log(obj.wproduct, 'test_delete')
        return super().destroy(request, *args, **kwargs)

    @action(methods=['post'], detail=True, perms_map={'post':'testrecord_submit'}, serializer_class=serializers.Serializer)
    def submit(self, request, pk=None):
        obj = self.get_object()
        if obj.is_submited and obj.is_midtesting is False:
            raise exceptions.APIException('该记录已提交')
        # 校验是否有未填项目
        if obj.type != TestRecord.TEST_PROCESS_RE and obj.is_midtesting is False:
            items_not = TestRecordItem.objects.filter(field_value__isnull=True, is_hidden=False, test_record=obj)
            if items_not.exists():
                raise exceptions.APIException('存在未填写项目:'+ ','.join(list(items_not.values_list('form_field__field_name', flat=True))))
        with transaction.atomic():
            obj.is_submited=True
            obj.update_by = request.user
            obj.save()
            if obj.wproduct:
                WpmService.update_wproduct_by_test(obj, request.user) # 这里已经做了日志记录和进度计算
        return Response()

    @action(methods=['get'], detail=True, perms_map={'get':'*'}, serializer_class=serializers.Serializer)
    def export(self, request, pk=None):
        """
        按模板导出
        """
        instance = self.get_object()
        # tm = instance.form.export_template
        tm = '/media/default/tmp.docx'
        if tm:
            path = exprot_test_record(tr=instance, tm=tm)
            return Response({'path':path})
        raise ParseError('未配置导出模板')

    # def create(self, request, *args, **kwargs):
    #     serializer = self.get_serializer(data=request.data)
    #     serializer.is_valid(raise_exception=True)
    #     vdata = serializer.validated_data
    #     record_data = vdata.pop('record_data')
    #     if 'is_testok' not in vdata:
    #         raise APIException('未填写检验结论')
    #     with transaction.atomic():
    #         obj = serializer.save(create_by = self.request.user)
    #         tris = []
    #         for m in record_data: # 保存记录详情
    #             form_field = m['form_field']
    #             m['field_name'] = form_field.field_name
    #             m['field_key'] = form_field.field_key
    #             m['field_type'] = form_field.field_type
    #             m['field_value'] = m['field_value']
    #             m['sort'] = form_field.sort
    #             m['need_judge'] = form_field.need_judge
    #             m['is_testok'] = m['is_testok'] if 'is_testok' in m else True
    #             m['test_record'] = obj
    #             tris.append(TestRecordItem(**m))
    #         TestRecordItem.objects.bulk_create(tris)

    #         # 如果检验合格
    #         if obj.fifo_item:
    #             obj.fifo_item.is_testok = True if obj.is_testok else False
    #             obj.fifo_item.is_tested = True
    #             obj.fifo_item.save()

    #     return Response(status=status.HTTP_201_CREATED)