greater_wms/container/views.py

from rest_framework import viewsets
from utils.page import MyPageNumberPagination
from utils.datasolve import sumOfList, transportation_calculate
from utils.md5 import Md5
from rest_framework.filters import OrderingFilter
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework.response import Response
from rest_framework.exceptions import APIException
from django.utils import timezone

from django.db import transaction
import logging
from rest_framework import status
from .models import ContainerListModel,ContainerDetailModel,ContainerOperationModel,ContainerWCSModel,TaskModel
from bound.models import BoundBatchModel,BoundDetailModel,BoundListModel

# from .files import FileListRenderCN, FileDetailRenderCN

from .serializers import ContainerDetailGetSerializer,ContainerDetailPostSerializer
from .serializers import ContainerListGetSerializer,ContainerListPostSerializer
from .serializers import ContainerOperationGetSerializer,ContainerOperationPostSerializer
from .serializers import TaskGetSerializer,TaskPostSerializer
from .filter import ContainerDetailFilter,ContainerListFilter,ContainerOperationFilter,TaskFilter
# 以后添加模
from warehouse.models import ListModel as warehouse
from staff.models import ListModel as staff
from rest_framework.permissions import AllowAny

logger = logging.getLogger(__name__)
class ContainerListViewSet(viewsets.ModelViewSet):
    """
        retrieve:
            Response a data list（get）
        list:
            Response a data list（all）
        create:
            Create a data line（post）

        delete:
            Delete a data line（delete)

    """
    # authentication_classes = []  # 禁用所有认证类
    # permission_classes = [AllowAny]  # 允许任意访问
    
    pagination_class = MyPageNumberPagination   
    filter_backends = [DjangoFilterBackend, OrderingFilter, ]
    ordering_fields = ['id', "create_time", "update_time", ]
    filter_class = ContainerListFilter

    def get_project(self):
        try:
            id = self.kwargs.get('pk')
            return id
        except:
            return None

    def get_queryset(self):
        id = self.get_project()
        if self.request.user:
            if id is None:
                return ContainerListModel.objects.filter()
            else:
                return ContainerListModel.objects.filter( id=id)
        else:
            return ContainerListModel.objects.none()


    def get_serializer_class(self):
        if self.action in ['list', 'destroy','retrieve']:
            return ContainerListGetSerializer
        elif self.action in ['create', 'update']:
            return ContainerListPostSerializer
        else:
            return self.http_method_not_allowed(request=self.request)

    def create(self, request, *args, **kwargs):
        data = self.request.data
        order_month = str(timezone.now().strftime('%Y%m'))
        data['month'] = order_month
        data['last_operate'] = str(timezone.now())
        
        serializer = self.get_serializer(data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()

        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)
    
    def update(self, request, pk):
        qs = self.get_object()
        data = self.request.data
        serializer = self.get_serializer(qs, data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)

class TaskViewSet(viewsets.ModelViewSet):
    """
        retrieve:
            Response a data list（get）
            list:
            Response a data list（all）
        create:
            Create a data line（post）

        delete:
            Delete a data line（delete)

    """
    pagination_class = MyPageNumberPagination   
    filter_backends = [DjangoFilterBackend, OrderingFilter, ]
    ordering_fields = ['id', "create_time", "update_time", ]
    filter_class = TaskFilter

    def get_project(self):
        try:
            id = self.kwargs.get('pk')
            return id
        except:
            return None

    def get_queryset(self):
        id = self.get_project()
        if self.request.user:
            if id is None:
                return TaskModel.objects.filter()
            else:
                return TaskModel.objects.filter( id=id)
        else:
            return TaskModel.objects.none()


    def get_serializer_class(self):
        if self.action in ['list', 'destroy','retrieve']:
            return TaskGetSerializer
        elif self.action in ['create', 'update']:
            return TaskPostSerializer
        else:
            return self.http_method_not_allowed(request=self.request)

    def create(self, request, *args, **kwargs):
        data = self.request.data

        return Response(data, status=200, headers=headers)
    
    def update(self, request, pk):
        qs = self.get_object()
        data = self.request.data
        serializer = self.get_serializer(qs, data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)


class ContainerWCSViewSet(viewsets.ModelViewSet):
    """
        retrieve:
            Response a data list（get）
            list:
            Response a data list（all）
        create:
            Create a data line（post）

        delete:
            Delete a data line（delete)

    """
    authentication_classes = []  # 禁用所有认证类
    permission_classes = [AllowAny]  # 允许任意访问
 
    def get_container_wcs(self, request, *args, **kwargs):
        data = self.request.data
        container = data.get('container_number')
        current_location = data.get('current_location')
        data_return = {}

        try:
            container_obj = ContainerListModel.objects.filter(container_code=container).first()
            if not container_obj:
                data_return = {
                    'code': '400',
                    'message': '托盘编码不存在',
                    'data': data
                }
                return Response(data_return, status=status.HTTP_400_BAD_REQUEST)

            # 更新容器数据（部分更新）
            serializer = ContainerListPostSerializer(
                container_obj, 
                data=data, 
                partial=True  # 允许部分字段更新
            )
            serializer.is_valid(raise_exception=True)
            serializer.save()
            # 库位分配
             
            # 检查是否已在目标位置
            if current_location == str(container_obj.target_location):
                logger.info(f"托盘 {container} 已在目标位置")
                data_return = {
                    'code': '200',
                    'message': '当前位置已是目标位置',
                    'data': data
                }
            else:
                current_task = ContainerWCSModel.objects.filter(
                    container=container, 
                    tasktype='inbound'
                ).first()

                if current_task:
                    
                    data_return = {
                        'code': '200',
                        'message': '任务已存在，重新下发',
                        'data': current_task.to_dict()
                    }
                else:
                    self.generate_task(container, current_location, container_obj.target_location)
                    current_task = ContainerWCSModel.objects.get(
                        container=container, 
                        tasktype='inbound'
                    )
                  
                    data_return = {
                        'code': '200',
                        'message': '任务下发成功',
                        'data': current_task.to_dict()
                    }
                    self.inport_update_task(current_task.id, container_obj.id)


            http_status = status.HTTP_200_OK if data_return['code'] == '200' else status.HTTP_400_BAD_REQUEST
            return Response(data_return, status=http_status)

        except Exception as e:
            logger.error(f"处理请求时发生错误: {str(e)}", exc_info=True)
            return Response(
                {'code': '500', 'message': '服务器内部错误', 'data': None},
                status=status.HTTP_500_INTERNAL_SERVER_ERROR
            )

    @transaction.atomic
    def generate_task(self, container, current_location, target_location):
        data_tosave = {
            'container': container,
            'current_location': current_location,
            'month': timezone.now().strftime('%Y%m'),
            'target_location': target_location,  
            'tasktype': 'inbound',
            'status': 103,
            'is_delete': False
        }

        # 生成唯一递增的 taskid
        last_task = ContainerWCSModel.objects.filter(
            month=data_tosave['month'], 
            tasktype='inbound'
        ).order_by('-taskid').first()

        if last_task:
            last_id = int(last_task.taskid.split('-')[-1])
            new_id = f"{last_id + 1:04}"
        else:
            new_id = "0001"

        data_tosave['taskid'] = f"inbound-{data_tosave['month']}-{new_id}"
        logger.info(f"生成入库任务: {data_tosave['taskid']}")
        # 每月生成唯一递增的 taskNumber
        data_tosave['tasknumber'] = f"{data_tosave['month']}{new_id}"
        ContainerWCSModel.objects.create(**data_tosave)

    @transaction.atomic
    def inport_update_task(self, wcs_id,container_id):
        try:
            task_obj = ContainerWCSModel.objects.filter(id=wcs_id).first()
            if task_obj:
                container_detail_obj = ContainerDetailModel.objects.filter(container=container_id).all()
                if container_detail_obj:
                    for detail in container_detail_obj:
                        # 保存到数据库
                        batch = BoundDetailModel.objects.filter(bound_batch_id=detail.batch.id).first()
                        TaskModel.objects.create(
                            task_wcs = task_obj,
                            container_detail = detail,
                            batch_detail = batch
                        )
                        logger.info(f"入库任务 {wcs_id} 已更新")
                else:
                    logger.info(f"入库任务 {container_id} 批次不存在")
            else:
                logger.info(f"入库任务 {wcs_id} 不存在")
        except Exception as e:     
            logger.error(f"处理入库任务时发生错误: {str(e)}", exc_info=True)
            return Response(
                {'code': '500', 'message': '服务器内部错误', 'data': None},
                status=status.HTTP_500_INTERNAL_SERVER_ERROR
            )
         


# PDA组盘入库 将扫描到的托盘编码和批次信息保存到数据库
# 1. 先查询托盘对象，如果不存在，则创建托盘对象
# 2. 循环处理每个批次，查询批次对象，
# 3. 更新批次数据（根据业务规则）
# 4. 保存到数据库
# 5. 保存操作记录到数据库
class ContainerDetailViewSet(viewsets.ModelViewSet):
    """
        retrieve:
            Response a data list（get）
            list:
            Response a data list（all）
        create:
            Create a data line（post）

        delete:
            Delete a data line（delete)

    """
    # authentication_classes = []  # 禁用所有认证类
    # permission_classes = [AllowAny]  # 允许任意访问
    
    pagination_class = MyPageNumberPagination   
    filter_backends = [DjangoFilterBackend, OrderingFilter, ]
    ordering_fields = ['id', "create_time", "update_time", ]
    filter_class = ContainerDetailFilter

    def get_project(self):
        try:
            id = self.kwargs.get('pk')
            return id
        except:
            return None

    def get_queryset(self):
        id = self.get_project()
        if self.request.user:
            if id is None:
                return ContainerDetailModel.objects.filter( is_delete=False)
            else:
                return ContainerDetailModel.objects.filter( id=id, is_delete=False)
        else:
            return ContainerDetailModel.objects.none()


    def get_serializer_class(self):
        if self.action in ['list', 'destroy','retrieve']:
            return ContainerDetailGetSerializer
        elif self.action in ['create', 'update']:
            return ContainerDetailPostSerializer
        else:
            return self.http_method_not_allowed(request=self.request)

    def create(self, request, *args, **kwargs):
        data = self.request.data 
        order_month = str(timezone.now().strftime('%Y%m'))
        data['month'] = order_month
        container_code = data.get('container')
        batches = data.get('batches', [])  # 确保有默认空列表
        print('扫描到的托盘编码', container_code)
        
        # 处理托盘对象
        container_obj = ContainerListModel.objects.filter(container_code=container_code).first()
        if container_obj:
            data['container'] = container_obj.id
            logger.info(f"托盘 {container_code} 已存在")
    
        else:
            logger.info(f"托盘 {container_code} 不存在，创建托盘对象")
            serializer_list = ContainerListPostSerializer(data={'container_code': container_code})
            serializer_list.is_valid(raise_exception=True)
            serializer_list.save()
            data['container'] = serializer_list.data.get('id')
        
        # 循环处理每个批次
        for batch in batches:
            bound_number = batch.get('goods_code')
            goods_qty = batch.get('goods_qty')
            
            # 查询商品对象
            bound_obj = BoundBatchModel.objects.filter(bound_number=bound_number).first()

            if not bound_obj:
                # 如果商品不存在，返回错误，这里暂时在程序中进行提醒，后续需要改为前端弹窗提醒
                logger.error(f"批次 {bound_number} 不存在")
                # 跳出此次循环
                continue
                # return Response({"error": f"商品编码 {bound_number} 不存在"}, status=400)
            # 3. 更新批次数据（根据业务规则）
            try:
                last_qty = bound_obj.goods_in_qty
                bound_obj.goods_in_qty += batch.get("goods_qty", 0)
                if bound_obj.goods_in_qty >= bound_obj.goods_qty:
                    bound_obj.goods_in_qty = bound_obj.goods_qty
                    bound_obj.status = 1 # 批次状态为组盘完成
                    print('批次id',bound_obj.id) 
                    bound_detail_obj = BoundDetailModel.objects.filter(bound_batch=bound_obj.id).first()
                    if bound_detail_obj:
                        bound_detail_obj.status = 1
                        bound_detail_obj.save()
                        print('入库申请id',bound_detail_obj.bound_list_id)
                        # 入库申请全部批次入库完成
                        bound_batch_all = BoundDetailModel.objects.filter(bound_list=bound_detail_obj.bound_list_id).all()
                        if bound_batch_all.count() == bound_batch_all.filter(status=1).count():
                            bound_list_obj = BoundListModel.objects.filter(id=bound_detail_obj.bound_list_id).first()
                            print('当前状态',bound_list_obj.bound_status)
                            bound_list_obj.bound_status = 102
                            print('更新状态',bound_list_obj.bound_status)
                            bound_list_obj.save()
                            print('入库申请全部批次组盘完成')
                        else:
                            print('入库申请部分批次组盘完成')
                else:
                    bound_obj.status = 0
                
                bound_obj.save()  # 保存到数据库
                # 创建托盘详情记录（每个批次独立）
                print('新增个数',bound_obj.goods_in_qty-last_qty)
                if bound_obj.goods_in_qty-last_qty == goods_qty:
                    detail_data = {
                        "container": data['container'],  # 托盘ID
                        "batch": bound_obj.id,  # 外键关联批次
                        "goods_code": bound_obj.goods_code,
                        "goods_desc": bound_obj.goods_desc,
                        "goods_qty": goods_qty,
                        "goods_weight": bound_obj.goods_weight,
                        "status": 1,
                        "month": data['month'],
                        "creater": data.get('creater', 'zl')  # 默认值兜底
                    }
                    serializer = self.get_serializer(data=detail_data)
                    serializer.is_valid(raise_exception=True)
                    serializer.save()  # 必须保存到数据库
                    operate_data = {
                        "month" : data['month'],
                        "container": data['container'],  # 托盘ID
                        "operation_type" : 'container',
                        "batch" : bound_obj.id,  # 外键关联批次
                        "goods_code": bound_obj.goods_code,
                        "goods_desc": bound_obj.goods_desc,
                        "goods_qty": goods_qty,
                        "goods_weight": bound_obj.goods_weight,
                        "operator": data.get('creater', 'zl'),  # 默认值兜底
                        "timestamp": timezone.now(),
                        "from_location": "container",
                        "to_location": "container",
                        "memo": "入库PDA组盘,pda入库"+str(bound_obj.goods_code)+"数量"+str(goods_qty)
                    }
                    serializer_operate = ContainerOperationPostSerializer(data=operate_data)
                    serializer_operate.is_valid(raise_exception=True)
                    serializer_operate.save()  # 必须保存到数据库

                elif bound_obj.goods_in_qty-last_qty > 0:
                    print('批次数量不一致')
                    detail_data = {
                        "container": data['container'],  # 托盘ID
                        "batch": bound_obj.id,  # 外键关联批次
                        "goods_code": bound_obj.goods_code,
                        "goods_desc": bound_obj.goods_desc,
                        "goods_qty": bound_obj.goods_in_qty-last_qty,
                        "goods_weight": bound_obj.goods_weight,
                        "status": 1,
                        "month": data['month'],
                        "creater": data.get('creater', 'zl')  # 默认值兜底
                    }
                    serializer = self.get_serializer(data=detail_data)
                    serializer.is_valid(raise_exception=True)
                    serializer.save()  # 必须保存到数据库
                    operate_data = {
                        "month" : data['month'],
                        "container": data['container'],  # 托盘ID
                        "operation_type" : 'container',
                        "batch" : bound_obj.id,  # 外键关联批次
                        "goods_code": bound_obj.goods_code,
                        "goods_desc": bound_obj.goods_desc,
                        "goods_qty": bound_obj.goods_in_qty-last_qty,
                        "goods_weight": bound_obj.goods_weight,
                        "operator": data.get('creater', 'zl'),  # 默认值兜底
                        "timestamp": timezone.now(),
                        "from_location": "container",
                        "to_location": "container",
                        "memo": "入库PDA组盘,(数量不一致)pda入库"+str(bound_obj.goods_code)+"数量"+str(goods_qty)
                    }
                    serializer_operate = ContainerOperationPostSerializer(data=operate_data)
                    serializer_operate.is_valid(raise_exception=True)
                    serializer_operate.save()  # 必须保存到数据库
                else :
                    print('重复组盘')
                    
            except Exception as e:
                print(f"更新批次 {bound_number} 失败: {str(e)}")
                continue

        # 将处理后的数据返回（或根据业务需求保存到数据库）
        res_data={
            	"code": "200",
                "msg": "Success Create",
                "data": data
        }
        return Response(res_data, status=200)

    def update(self, request, pk):
        qs = self.get_object()
        data = self.request.data
        serializer = self.get_serializer(qs, data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)

class ContainerOperateViewSet(viewsets.ModelViewSet):
    """
        retrieve:
            Response a data list（get）
            list:
            Response a data list（all）
        create:
            Create a data line（post）

        delete:
            Delete a data line（delete)

    """
    # authentication_classes = []  # 禁用所有认证类
    # permission_classes = [AllowAny]  # 允许任意访问
    
    pagination_class = MyPageNumberPagination   
    filter_backends = [DjangoFilterBackend, OrderingFilter, ]
    ordering_fields = ['id', "timestamp" ]
    filter_class = ContainerOperationFilter

    def get_project(self):
        try:
            id = self.kwargs.get('pk')
            return id
        except:
            return None

    def get_queryset(self):
        id = self.get_project()
        if self.request.user:
            if id is None:
                return ContainerOperationModel.objects.filter( is_delete=False)
            else:
                return ContainerOperationModel.objects.filter( id=id, is_delete=False)
        else:
            return ContainerOperationModel.objects.none()


    def get_serializer_class(self):
        if self.action in ['list', 'destroy','retrieve']:
            return ContainerOperationGetSerializer
        elif self.action in ['create', 'update']:
            return ContainerOperationPostSerializer
        else:
            return self.http_method_not_allowed(request=self.request)

    def create(self, request, *args, **kwargs):
        data = self.request.data
        serializer = self.get_serializer(data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)
    
    def update(self, request, pk):
        qs = self.get_object()
        data = self.request.data
        serializer = self.get_serializer(qs, data=data)
        serializer.is_valid(raise_exception=True)
        serializer.save()
        headers = self.get_success_headers(serializer.data)
        return Response(serializer.data, status=200, headers=headers)