# @Author    : Rocky
# @File      : InitController.py
# @Time      : 2023/4/11 17:26
from django.contrib.auth.hashers import check_password
from django.http import HttpResponse
from django.views import View

from Model.models import Device_User, Device_Info, Order_Model, UID_Bucket, Unused_Uid_Meal
from Object.ResponseObject import ResponseObject


class InitView(View):

    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.GET, operation)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        operation = kwargs.get('operation')
        return self.validation(request.POST, operation)

    def validation(self, request_dict, operation):
        if operation == 'health-check':         # 负载均衡器健康检测接口
            return self.health_check(request_dict)
        elif operation == 'delete-account':     # 网页删除账号
            return self.delete_account(request_dict)

    @staticmethod
    def health_check(request_dict):
        response = ResponseObject()
        return response.json(0)

    @staticmethod
    def delete_account(request_dict):
        username = request_dict.get('username', None)
        password = request_dict.get('password', None)
        response = ResponseObject()

        device_user_qs = Device_User.objects.filter(username=username).values('password', 'userID')
        if not device_user_qs.exists():
            return response.json(104)

        cipher_password, user_id = device_user_qs[0]['password'], device_user_qs[0]['userID']
        if not check_password(password, cipher_password):
            return response.json(111)

        device_info_qs = Device_Info.objects.filter(userID=user_id)
        if device_info_qs.exists():
            return response.json(10047)

        uid_list = Order_Model.objects.filter(userID=user_id, status=1).values_list('UID').distinct().order_by('UID')
        uid_bucket_qs = UID_Bucket.objects.filter(uid__in=uid_list, use_status=1)
        if uid_bucket_qs.exists():
            return response.json(10046)

        unused_uid_meal_qs = Unused_Uid_Meal.objects.filter(uid__in=uid_list)
        if unused_uid_meal_qs.exists():
            return response.json(10046)
        device_user_qs.delete()
        return response.json(0)