"""
圖書(shū)管理系統(tǒng)
"""
import random

# books={書(shū)名:剩余數(shù)量, 書(shū)名:剩余數(shù)量}
import time

books = {"防脫發(fā)指南": 5, "頸椎康復(fù)指南": 3, "從刪庫(kù)到跑路": 0}
# students_books=[name,{書(shū)}]
students_books = {"趙路遙": []}


class book(object):
 """先傳一個(gè)書(shū)名,以后可根據(jù)需要傳 開(kāi)始借書(shū)時(shí)間,書(shū)的詳細(xì)信息,以及之前借書(shū)的人等等"""

 def __init__(self, bookname):
 super(book, self).__init__()
 self.bookname = bookname

 def getBookName(self):
 return self.bookname


if __name__ == "__main__":
 print("*" * 50)
 print("歡迎來(lái)到遙遙哥的圖書(shū)館".center(50))
 print("*" * 50)
 while True:
 choices = input("""  請(qǐng)選擇你所需要的功能
1.查詢書(shū)籍 2.借書(shū) 3.還書(shū) 4.顯示所有書(shū)籍 5.查詢用戶所借的書(shū) 6.退出系統(tǒng):""")
 if choices == '1':
  # 查詢書(shū)籍
  print('--------查詢書(shū)籍---------')
  search_book = input('請(qǐng)輸入要查詢的書(shū)籍名稱:')
  # 遍歷books
  for book in books.keys():
  if search_book in book:
   print("正在查找,請(qǐng)稍等")
   time.sleep(1)
   if books[search_book] > 0:
   print("你說(shuō)查找的書(shū),目前還有{}本".format(books[search_book]))
   break
   else:
   print("你所查找的書(shū),已經(jīng)借完,請(qǐng)過(guò)段時(shí)間之后再來(lái)")
   break
  else:
  print("對(duì)不起你所輸入的書(shū)不存在,可聯(lián)系管理員補(bǔ)充")

 elif choices == '2':
  # 借書(shū)
  print("歡迎來(lái)到借書(shū)頁(yè)面".center(50))
  flag = True
  while flag:
  user_name = input("請(qǐng)輸入用戶名")
  borrow_book = input("請(qǐng)輸入你所借的書(shū)名")
  for book in books.keys():
   if borrow_book == book:
   if user_name in students_books.keys():
    if books[borrow_book] > 0:
    if borrow_book not in students_books[user_name]:
     print(r"你已經(jīng)借書(shū)<<{}>>".format(borrow_book))
     students_books[user_name].append(borrow_book)
     books[borrow_book] -= 1
     print(r"現(xiàn)在<<{}>>,剩余{}本".format(borrow_book, books[borrow_book]))
     flag = False
     break
    else:
     print("對(duì)不起,你已經(jīng)借了一本")
     flag = False
     break
    else:
    print("對(duì)不起你所借的書(shū)剩余{}本,請(qǐng)下次再來(lái)".format(books[borrow_book]))
    flag = False
    break
   else:
    students_books[user_name] = []
    students_books[user_name].append(borrow_book)
    books[borrow_book] -= 1
    print(r"新用戶( {} )已經(jīng)借書(shū)<< {} >>,目前此書(shū)剩余{}本".format(user_name, borrow_book, books[borrow_book]))
    flag = False
    break

  else:
   print("對(duì)不起你所查找的書(shū),不存在,請(qǐng)聯(lián)系管理員更新")

 elif choices == '3':
  flag=True
  while flag:
  user_name = input("請(qǐng)輸入你的名字")
  repay_book = input("情輸入你所要還的書(shū)")
  for name in students_books.keys():
   #先去判斷有沒(méi)有這個(gè)人
   if name==user_name:
   #判斷有沒(méi)有這本書(shū)在不在該用戶
   if repay_book in students_books[name]:
    #判斷此本書(shū)書(shū)否在圖書(shū)館庫(kù)里面
    if repay_book in books.keys():
    books[repay_book]+=1
    students_books[name].remove(repay_book)
    print("正在還書(shū),請(qǐng)稍等")
    time.sleep(1)
    print("你已經(jīng)還書(shū)了,這本書(shū)數(shù)量為{}".format(books[repay_book]))
    flag=False
    break
    else:
    print("此本書(shū)不在圖書(shū)館庫(kù)里面,請(qǐng)重新輸入")
    break
   else:
    print("你所輸入的書(shū),并在你的借書(shū)目錄里面,請(qǐng)重新輸入")
    break
  else:
   print("對(duì)不起你所輸入的人不存在,請(qǐng)重新輸入")

 elif choices == '4':
  # 顯示所有書(shū)籍
  print("圖書(shū)館目前所藏書(shū)籍如下:")
  for bookkey, bookvalue in list(books.items()):
  print(r"<<{}>>目前還有 {} 本".format(bookkey, bookvalue))
  time.sleep(0.5)
 elif choices=='5':
  username=input(" 請(qǐng)輸入你要查詢的用戶名")
  for stu in students_books.keys():
  if username== stu:
   print("{}所借的書(shū)有{}".format(user_name,students_books[username]))
  else:
  print("你查找的用戶不在")
 elif choices == '6':
  choice = ("確定是否退出,確認(rèn)請(qǐng)輸入yes,否則請(qǐng)輸入no")
  if choice == 'yes':
  print("感謝你的使用,再見(jiàn)")
  break
 else:
  print('輸入錯(cuò)誤請(qǐng)重新輸入....')