#!/usr/bin/env python

# -*- coding: utf-8 -*-

# @Time    : 2020/4/20 下午4:12

# @Author  : hk

# @Site    :

# @File    : 购物车.py

# @Software: PyCharm

"""

需求描述：

    1.输入正确账号，密码，进入购物车购物

    2.登录失败，重新输入账号密码

    3.同一账号连续登录失败超过三次，则锁定该账号

    4.登录已锁定账号，提示账号已锁定
　　"""

#显示已购商品列表函数

def shoping_list(myshping,money):

    print('=============您的购物清单如下=================')

    dic1={}

    for i in myshping:

        if dic1.get(i) == None:

            dic1[i] =1

        else:

            dic1[i] +=1

    for k,v in dic1.items():

        print(k,v)

    print("===========================================\n您的余额：%d"%money)

#购物车函数

def shoping():

    goods = [{'name': '电脑', 'price': 1999},

             {'name': '鼠标', 'price': 10},

             {'name': '游艇', 'price': 20},

             {'name': '美女', 'price': 998},

             {'name': 'iphone', 'price': 5000},

             ]

    flag = False

    my_shopping = []

    while True:

        money = input("请输入您的金额：\n")

        if not money.isdigit():

            keys = input("输入错误，请按任意键重新输入,或输入q退出购买\n")

            if keys.upper() == 'Q':

                break

            continue

        money = int(money)

        while True:

            print('+++++++++++商品列表+++++++++++++')

            for index, key in enumerate(goods):

                print(index + 1, key['name'], key['price'])  # 这里key取到的值是每一行的字典，再按key字典的键值打印出来商品明细

            print('我的钱包余额', money)

            num = input("请输入想要购买的商品序号：【或输入q结束购买】\n")

            if num.upper() == 'Q':

                flag = True

                break

            if not num.isdigit():

                print("输入错误，请重新输入！")

                continue

            num = int(num)

            if num > 0 and num < len(goods) + 1:

                # print(num,"开始购物\n----------")

                if money >= goods[num - 1]['price']:

                    my_shopping.append(goods[num - 1]['name'])

                    money = money - goods[num - 1]['price']

                    shoping_list(my_shopping,money)

                    # print(my_shopping, "我的余额", money)

                else:

                    # print("余额不足")

                    while True:

                        chongzhi = input("余额不足，请输入充值金额：【或输入q结束购买。]\n")

                        if chongzhi.upper() == "Q":

                            flag = True

                            break

                        if not chongzhi.isdigit():

                            # keys_1=input("输入错误，请重新输入充值金额：或输入q结束购买。。。充值部分的错误]")

                            # if keys_1.upper() == "Q":

                            #     flag = True

                            #     break

                            print("输入错误，请重新输入")

                            continue

                        money = money + int(chongzhi)

                        break

                    # break

                    if flag == True:

                        break

            else:

                print("请输入正确商品编号")

                continue

        if flag == True:

            # 打印出购物清单并统计，显示余额。

            print("谢谢光临！")

            shoping_list(my_shopping,money)

            exit(0)

        continue

#注册函数

def regist():

    """

    注册用户

    name: 用户名称

    password:用户密码

    :return:

    """

    # 读取用户文件

    with open("user.txt", encoding='utf-8',mode="r") as read_file:

        read_data = read_file.readlines()

        i_name = []

        for i in read_data:

            i_line = i.strip().split(',')

            i_name.append(i_line[0])

        while True:

            username = input('请输入用户名：\n').strip()

            if username in i_name:

                print('用户名已经存在，请重新输入。')

                continue

            else:

                password = input('请输入密码：\n').strip()

                with open('user.txt',encoding='utf-8',mode='a') as read_f1:

                    new_user = [username,password,'0']

                    new_user ='\n' + ','.join(new_user)

                    # print(new_user,type(new_user))

                    read_f1.write(new_user)

                    print('%s,恭喜您注册成功，请登录'%username)

                    break

#修改用户登录次数函数

def modify_user(name, mode="add"):

    """

    修改用户名单中的登录错误次数

    :param name: 用户名称

    :param mode:add，登录错误次数自增1；del，登录错误次数重置为0

    :return:

    """

    # 读取用户文件

    with open("user.txt", encoding='utf-8',mode="r") as read_file:

        read_data = read_file.readlines()

    # 写入用户文件

    with open("user.txt", encoding='utf-8',mode="w") as write_file:

        for line in read_data:

            new_line = line.split(',')

            if new_line[0] == name:

                if mode == "add":

                    new_line[2] = int(new_line[2]) + 1

                    new_line[2] = str(new_line[2])

                    print(">>>>>>>",new_line)

                else:

                    new_line[2] = "0"

                new_line = ",".join(new_line) + "\n"

                write_file.write(new_line)

                # print('写入',new_line)

                write_file.flush()

            else:

                write_file.write(line)

#验证用户名密码函数

def auth(name, passwd):

    with open("user.txt", encoding='utf-8',mode="r") as read_file:

        for eachLine in read_file:

            user_name, password, errors = eachLine.strip().split(',')

            if name == user_name:

                if int(errors) < 3:

                    if password == passwd:

                        print ("Dear [%s],欢迎你登录本购物车" % name)

                        modify_user(name, "del")

                        shoping()

                        # return True

                    else:

                        print ("密码错误，请重新输入用户名密码！")

                        modify_user(name, "add")

                        return False

                else:

                    print ("您的用户已经锁定，请联系管理员!")

                    return False

        else:

            print ("用户名不存在，请重新输入！")

            return False

def login():

    while True:

        name = input("请输入用户名:")

        passwd = input("表输入密码:")

        if auth(name, passwd):

            break

def menu() :

    while True:

        mode = input('请您注册或登录：\n'

                    '注册选1\n'

                    '登录选2\n'

                     '或按输入q退出\n').strip()

        if mode == '1':

            regist()

        elif mode == '2':

            login()

        elif mode.upper() == 'Q':

            exit(0)

        else:

            print("输入错误，请重新输入，或按q退出。")

            continue

if __name__ == '__main__':

    menu()