import logging
import traceback

from rest_framework.viewsets import ModelViewSet

from ChaCeRndTrans.basic import CCAIResponse
from ChaCeRndTrans.code import OK
from utils.custom import CommonPagination, RbacPermission, TreeAPIView, CustomViewBase
from ..models import Menu
from ..serializers.menu_serializer import MenuSerializer
from rest_framework.filters import SearchFilter, OrderingFilter
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from operator import itemgetter

err_logger = logging.getLogger('error')


class MenuViewSet(ModelViewSet, TreeAPIView):
    """
    菜单管理：增删改查
    """
    perms_map = ({"*": "admin"}, {"*": "menu_all"}, {"get": "menu_list"}, {"post": "menu_create"}, {"put": "menu_edit"},
                 {"delete": "menu_delete"})
    queryset = Menu.objects.all()
    serializer_class = MenuSerializer
    pagination_class = CommonPagination
    filter_backends = (SearchFilter, OrderingFilter)
    search_fields = ("name",)
    ordering_fields = ("sort",)
    authentication_classes = (JSONWebTokenAuthentication,)
    permission_classes = (RbacPermission,)


class MenuTreeView(TreeAPIView):
    """
    菜单树
    """
    queryset = Menu.objects.all()

    def list(self, request, *args, **kwargs):
        """
        根据是否前后台用户返回除去内部权限
        """
        if 1 == request.user.label:  # 前台用户
            self.queryset = Menu.objects.filter(label=1).distinct()
        response = super().list(request, *args, **kwargs)
        return response


def get_all_menu_dict():
    """
    获取所有菜单数据，重组结构
    """
    try:
        menus = Menu.objects.all()
        serializer = MenuSerializer(menus, many=True)
        tree_dict = {}
        for item in serializer.data:
            if item["pid"] is None:
                if item["is_frame"]:
                    # 判断是否外部链接
                    top_menu = {
                        "id": item["id"],
                        "path": item["path"],
                        "component": "Layout",
                        "children": [{
                            "path": item["path"],
                            "meta": {
                                "name": item["name"],
                                "icon": item["icon"]
                            }
                        }],
                        "pid": item["pid"],
                        "sort": item["sort"]
                    }
                else:
                    top_menu = {
                        "id": item["id"],
                        "route_name": item["route_name"],
                        "path": "/" + item["path"],
                        "redirect": "noredirect",
                        "component": "",
                        "alwaysShow": True,
                        "meta": {
                            "name": item["name"],
                            "icon": item["icon"]
                        },
                        "pid": item["pid"],
                        "sort": item["sort"],
                        "children": []
                    }
                tree_dict[item["id"]] = top_menu
            else:
                if item["is_frame"]:
                    children_menu = {
                        "id": item["id"],
                        "route_name": item["route_name"],
                        "path": item["path"],
                        "component": "Layout",
                        "meta": {
                            "name": item["name"],
                            "icon": item["icon"],
                        },
                        "pid": item["pid"],
                        "sort": item["sort"]
                    }
                elif item["is_show"]:
                    children_menu = {
                        "id": item["id"],
                        "route_name": item["route_name"],
                        "path": item["path"],
                        "component": item["component"],
                        "meta": {
                            "name": item["name"],
                            "icon": item["icon"],
                        },
                        "pid": item["pid"],
                        "sort": item["sort"]
                    }
                else:
                    children_menu = {
                        "id": item["id"],
                        "route_name": item["route_name"],
                        "path": item["path"],
                        "component": item["component"],
                        "meta": {
                            "name": item["name"],
                            "noCache": True,
                        },
                        "hidden": True,
                        "pid": item["pid"],
                        "sort": item["sort"]
                    }
                tree_dict[item["id"]] = children_menu
        return tree_dict
    except Exception as e:
        err_logger.error("get all menu from role failed: \n%s" % traceback.format_exc())
        return tree_dict