from apps.cm.models import LableMat, LabelTemplate
from rest_framework.decorators import action
from apps.cm.serializers import TidSerializer, LabelMatSerializer, LabelTemplateSerializer
from apps.inm.models import MaterialBatch, MIOItem
from apps.wpm.models import WMaterial
from rest_framework.exceptions import ParseError, NotFound
from rest_framework.response import Response
from apps.utils.viewsets import CustomGenericViewSet, RetrieveModelMixin, CustomListModelMixin, CustomModelViewSet
from apps.cm.filters import LabelTemplateFilter
# Create your views here.

SPLIT_FIELD = "#"

class LableMatViewSet(CustomListModelMixin, RetrieveModelMixin, CustomGenericViewSet):
    perms_map = {"post": "*", "get": "*"}
    serializer_class = LabelMatSerializer
    queryset = LableMat.objects.all()
    select_related_fields = ["material", "material_origin", "supplier"]

    def gen_commands(self, label_template, tdata):
        if label_template == "default":
            lt = LabelTemplate.objects.get(name="默认标签模板")
        else:
            lt = LabelTemplate.objects.get(id=label_template)
        commands:list = lt.commands
        try:
            for item in commands:
                item = item.format(**tdata)
        except Exception as e:
            raise ParseError(f"标签解析错误-{str(e)}")
        return commands


    @action(methods=["post"], detail=False, serializer_class=TidSerializer)
    def get_from_mb(self, request, pk=None):
        """
        从仓库明细获取物料标签

        从仓库明细获取物料标签
        """
        tid = request.data.get("tid")
        label_template = request.data.get("label_template", None)
        extra_data = request.data.get("extra_data", {})
        try:
            mb = MaterialBatch.objects.get(id=tid)
        except MaterialBatch.DoesNotExist:
            raise NotFound("仓库明细不存在")
        obj, _ = LableMat.objects.get_or_create(state=mb.state, material=mb.material, batch=mb.batch, defect=mb.defect, defaults={"supplier": mb.supplier})
        rdata = LabelMatSerializer(obj).data
        rdata["code_label"] = f"mat{SPLIT_FIELD}{obj.id}"
        if label_template:
            tdata = {**rdata, **extra_data}
            commands = self.gen_commands(label_template, tdata)
            rdata["commands"] = commands
        return Response(rdata)

    @action(methods=["post"], detail=False, serializer_class=TidSerializer)
    def get_from_wm(self, request, pk=None):
        """
        从车间库存明细获取物料标签

        从车间库存明细获取物料标签
        """
        tid = request.data.get("tid")
        label_template = request.data.get("label_template", None)
        extra_data = request.data.get("extra_data", {})
        try:
            wm = WMaterial.objects.get(id=tid)
        except WMaterial.DoesNotExist:
            raise NotFound("车间库存不存在")
        obj, _ = LableMat.objects.get_or_create(state=wm.state, material=wm.material, batch=wm.batch, 
                                                notok_sign=wm.notok_sign, defect=wm.defect,
                                                material_origin=wm.material_origin)
        rdata = LabelMatSerializer(obj).data
        rdata["code_label"] = f"mat{SPLIT_FIELD}{obj.id}"
        if label_template:
            tdata = {**rdata, **extra_data}
            commands = self.gen_commands(label_template, tdata)
            rdata["commands"] = commands
        return Response(rdata)

    @action(methods=["post"], detail=False, serializer_class=TidSerializer)
    def get_from_mioitem(self, request, pk=None):
        """
        从出入库明细获取物料标签

        从出入库明细获取物料标签
        """
        tid = request.data.get("tid")
        label_template = request.data.get("label_template", None)
        extra_data = request.data.get("extra_data", {})
        try:
            mioitem: MIOItem = MIOItem.objects.get(id=tid)
        except MIOItem.DoesNotExist:
            raise NotFound("出入库明细不存在")
        obj, _ = LableMat.objects.get_or_create(state=10, material=mioitem.material, batch=mioitem.batch, defaults={"supplier": mioitem.mio.supplier})
        rdata = LabelMatSerializer(obj).data
        rdata["code_label"] = f"mat{SPLIT_FIELD}{obj.id}"
        if label_template:
            tdata = {**rdata, **extra_data}
            commands = self.gen_commands(label_template, tdata)
            rdata["commands"] = commands
        return Response(rdata)


class LabelTemplateViewSet(CustomModelViewSet):
    """
    list: 标签模板

    标签模板
    """
    queryset = LabelTemplate.objects.all()
    serializer_class = LabelTemplateSerializer
    filterset_class = LabelTemplateFilter