#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import logging
import random
import time

from django.db import transaction
from django.views import View

from Model.models import SerialNumberModel
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from Service.AlgorithmService import AlgorithmBaseOn35
from Service.CommonService import CommonService
from Service.ModelService import ModelService


class SerialNumberView(View):

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

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

    def validate(self, request_dict, operation):
        token = request_dict.get('token', None)
        response = ResponseObject()

        token = TokenObject(token)
        if token.code != 0:
            return response.json(token.code)

        if operation == 'quantity':
            return self.do_quantity(request_dict, response)
        elif operation == 'create':
            return self.do_create(request_dict, response)
        else:
            return response.json(309)

    # 查询当前可用的UID的数量
    def do_quantity(self, request_dict, response):
        token = request_dict.get('token', None)

        token = TokenObject(token)
        if token.code != 0:
            return response.json(token.code)

        chenyun = SerialNumberModel.objects.filter(use_status=0 , p2p=1).count()
        tutk = SerialNumberModel.objects.filter(use_status=0, p2p=2).count()
        res_data = {'code': 0, 'chenyun': chenyun, 'tutk': tutk}
        return response.json(0, {'data': res_data})

    def do_create(self, request_dict, response):
        quantity = int(request_dict.get('quantity', 0))
        p2p = int(request_dict.get('p2p', 0))

        if not quantity:
            return response.json(444)

        try:
            try:
                sum = SerialNumberModel.objects.last().id
            except:
                sum = 0
            serial_number_bulk = []
            now_time = int(time.time())
            algorithm = AlgorithmBaseOn35()
            for i in range(quantity):
                serial_number = algorithm.getLetter(sum)
                sum += 1    # sum每次递增1
                # 前面补0至六位
                serial_number = (6-len(serial_number))*'0' + serial_number
                serial_number_bulk.append(SerialNumberModel(serial_number=serial_number, add_time=now_time, p2p=p2p))
            # 开启事务写入
            with transaction.atomic():
                SerialNumberModel.objects.bulk_create(serial_number_bulk)
            return response.json(0)
        except Exception as e:
            print(e)
            return response.json(500, repr(e))