#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import base64
import json
import os
import time
from django.views.generic.base import View
from Model.models import CouponModel
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from django.db.models import Q, F, Count
from django.http import JsonResponse, HttpResponseRedirect, HttpResponse
from Service.CommonService import CommonService


# 优惠券
class CouponView(View):

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

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

    def validation(self, request_dict, request, operation):
        response = ResponseObject()
        if operation is None:
            return response.json(444, 'error path')

        else:
            token = request_dict.get('token', None)
            tko = TokenObject(token)
            response.lang = tko.lang
            if tko.code != 0:
                return response.json(tko.code)
            userID = tko.userID
            if operation == 'UserCoupon':  #用户优惠券
                return self.query_user_coupon(request_dict, userID, response)
            else:
                return response.json(414)

    def query_user_coupon(self, request_dict, userID, response):  #用户优惠券列表
        nowTime = int(time.time())
        couponObj = CouponModel.objects.filter(userID_id=userID,use_status=0,distributeTime__lte=nowTime,
                                               valid_time__gt=nowTime).annotate(coupon_id=F('id')).values(
                                               "coupon_id","type","coupon_discount","valid_time")
        for couponList in couponObj:
            couponList['valid_time'] =  CommonService.timestamp_to_str(couponList['valid_time'])
        result = {
            'count':couponObj.count(),
            'couponList':list(couponObj),
        }
        return response.json(0, result)