#coding=utf-8
#Author:Vimiix
#Time:2017-04-05
#Lisence:Apache
#流程分析：
# 1、顾客投币，投币结束
# 2、遍历商品，展示商品信息
# 3、顾客购买饮料，账户结算
# 4、任意时刻按q退出
print('Welcome!')
g_money = 0
g_drinks_list = [
('Coffee',5),
('Coco',2.5),
('Milk',3),
('Water',1)
]
#遍历商品，打印商品列表
def show_drink_list():
print('*********Drink List*********')
print('Index\tDrink\tPrice')
print('----------------------------')
for index,drink in enumerate(g_drinks_list):
print index,'\t',drink[0],'\t',drink[1]
print('****************************')
#退款退出
def end_shop():
global g_money
if g_money == 0:
print('Your balance is 0 yuan.\nByebye')
exit()
else:
print('Return your balance:%d yuan\nByebye'%g_money)
exit()
#顾客投币，投币结束以后进入选商品阶段，按q退出
def recharge():
global g_money
while True:
start_money = raw_input('Please input your money(Press "q" to exit):')
i_money = 0
if start_money == 'q':
end_shop()
elif start_money.isdigit() and int(start_money) > 0:
i_money = int(start_money)
g_money += i_money
print('You just input %d yuan.Your acount totaly has %d yuan'%(i_money,g_money))
if (raw_input('Do you want to continue inputing?(y/n)：') == 'y'):
continue
else:
print('Your acount totaly has %d yuan.'%g_money)
break
else:
print("Sorry,can't recogonize what your input.Try again.")
continue
#顾客挑选商品，并显示余额
def pick_drink():
global g_money
global g_drinks_list
while True:
customer_choose = raw_input('Input the INDEX of which you want(Press "q" to exit):')
if customer_choose == 'q':
end_shop()
else:
i_customer_choose = int(customer_choose)
if( 0 <= i_customer_choose and i_customer_choose < len(g_drinks_list)):
if g_money < g_drinks_list[i_customer_choose][1]:
is_recharge = raw_input("Your balance is not enough.Do you want to recharge?(y/n):")
if is_recharge == 'y':
recharge()
else:
end_shop()
else:
g_money -= g_drinks_list[i_customer_choose][1]
print('Your chooes is %s ,which costs %.1f yuan.Your balance is %.1f yuan.'\
%(g_drinks_list[i_customer_choose][0],g_drinks_list[i_customer_choose][1],g_money))
else:
print("Sorry,can't find it.")
if __name__ == '__main__':
recharge()
show_drink_list()
pick_drink()
