class ConsoleApp:
def __init__(self):
self._library = Library()
self._users = []
self._users.append(User("admin", "42"))
self._current_user = None
def change_user(self):
name = input("Enter user name.")
if User(name) not in self._users:
char = input("There is no user like that! Wanna add user? [+/-]\t")
if char == "+":
password = input(
"Enter a password or - if there is no password for user.\t"
)
if password == "-":
password = None
self._users.append(User(name, password))
self._current_user = self._users[-1].name
else:
print(
"Can't find this user, so it's impossible to change current user."
)
return
else:
password = input("Enter a password or - if it doesn't exist,\t")
if password == "-":
password = None
if not self.find_user_by_name(name).validation(password):
print("Error. Incorrect password.")
return
self._current_user = name
def adding_book_menu(self, name=None, author=None):
if not name:
name = input("Enter a name.\t")
author = input("Enter an author.\t")
else:
print("Name - " + name)
print("Author - " + author)
try:
year = int(input("Enter a year or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
description = input("Enter a description or - of unknown.\t")
if description == "-":
description = None
if not self._library.add_book(name, author, year, description):
print("This book already exists!")
char = "+"
while char == "+":
char = input("Wanna add tags? \t")
if char == "+":
tag = input("Enter a tag. \t")
self.library.book_list[-1].add_tag(tag)
char = "+"
while char == "+":
char = input("Wanna add genres? \t")
if char == "+":
genre = input("Enter a genre. \t")
self.library.book_list[-1].add_genre(genre)
if not self._library.search_author(author):
answer = input("Wanna add an author? [+/-]\t")
if answer == "+":
self.adding_author_menu(author)
def adding_author_menu(self, name=None):
if not name:
name = input("Enter a name.\t")
else:
print("Name - " + name)
try:
birth_year = int(input("Enter a year of birth or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
try:
death_year = int(input("Enter a year of death or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
description = input("Enter a description or - of unknown.\t")
if description == "-":
description = None
if not self._library.add_author(name, birth_year, death_year,
description):
print("This author already exists.")
return
char = "+"
while char == "+":
char = input("Wanna add genres? \t")
if char == "+":
genre = input("Enter a genre. \t")
self.library.author_list[-1].add_genre(genre)
char = "+"
while char == "+":
char = input("Wanna add books? \t")
if char == "+":
book = input("Enter a book. \t")
self._library.author_list[-1].add_book(book)
if not self._library.search_book(book):
answer = input(
"Wanna add this book to the library? [+/-] \t")
if answer == "+":
self.adding_book_menu(book, name)
def deleting_book_menu(self):
if self.find_user_by_name(self._current_user).moderation:
name = input("Enter a name.\t")
if not self._library.delete_book(name):
print("There is no book with that name.")
else:
print("You have no rights to do it. Change the user first.")
def deleting_author_menu(self):
if self.find_user_by_name(self._current_user).moderation:
name = input("Enter a name.\t")
if not self._library.delete_author(name):
print("There is no author with that name.")
else:
print("You have no rights to do it. Change the user first.")
def editing_book_menu(self):
if self.find_user_by_name(self._current_user).moderation:
name = input("Enter a name.\t")
author = input("Enter an author.\t")
try:
year = int(input("Enter a year or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
description = input("Enter a description or - of unknown.\t")
if description == "-":
description = None
if not self._library.edit_book(name, author, year, description):
char = input(
"This book does not exist. Wanna add this book? [+/-]\t")
if char == "+":
self._library.add_book(name, author, year, description)
else:
print("You have no rights to do it. Change the user first.")
def editing_author_menu(self):
if self.find_user_by_name(self._current_user).moderation:
name = input("Enter a name.\t")
try:
birth_year = int(
input("Enter a year of birth or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
try:
death_year = int(
input("Enter a year of death or 0 if unknown.\t"))
except ValueError:
print("Not valid year.")
exit(1)
description = input("Enter a description or - of unknown.\t")
if description == "-":
description = None
if not self._library.edit_author(name, birth_year, death_year,
description):
char = input(
"This author does not exist. Wanna add this author? [+/-]\t"
)
if char == "+":
self._library.add_author(name, birth_year, death_year,
description)
else:
print("You have no rights to do it. Change the user first.")
def book_info_menu(self):
name = input("Enter a name.\t")
self._library.get_info_about_book(name)
def author_info_menu(self):
name = input("Enter a name.\t")
self._library.get_info_about_author(name)
def tag_searching_menu(self):
tag = input("Enter a tag.\t")
this_book_list = self.library.search_by_tag(tag)
print("Books with this tag:")
if not len(this_book_list):
print("There is no books with this tag.")
for books in this_book_list:
print(books.name + ", " + books.author)
def genre_searching_menu(self):
genre = input("Enter a genre.\t")
this_book_list, this_author_list = self.library.search_by_genre(genre)
print("Books with this genre:")
if not len(this_book_list):
print("There is no books with this genre.")
for books in this_book_list:
print(books.name + ", " + books.author)
print("Authors associated with this genre:")
if not len(this_author_list):
print("There is no authors associated with this genre.")
for authors in this_author_list:
print(authors.name)
def find_user_by_name(self, name):
for user in self._users:
if user.name == name:
return user
return None
def add_favourite_tags(self):
tag = input("Enter a tag.\t")
if self._current_user != "admin":
self.find_user_by_name(self._current_user).add_tags(tag)
else:
print("Forbidden operation - admin can't do it.")
def add_favourite_genres(self):
genre = input("Enter a genre.\t")
if self._current_user != "admin":
self.find_user_by_name(self._current_user).add_genres(genre)
else:
print("Forbidden operation - admin can't do it.")
def add_favourite_authors(self):
author = input("Enter a genre.\t")
if self._current_user != "admin":
self.find_user_by_name(self._current_user).add_authors(author)
else:
print("Forbidden operation - admin can't do it.")
def add_favourite_books(self):
book = input("Enter a name of the book.\t")
author = input("Enter a name of the author.\t")
if self._current_user != "admin":
self.find_user_by_name(self._current_user).add_books(book, author)
else:
print("Forbidden operation - admin can't do it.")
if not self._library.search_book(book):
char = input(
"This book does not exist. Wanna add this book? [+/-]\t")
if char == "+":
self.adding_book_menu(book, author)
def delete_user(self):
name = input("Enter a name of the user.\t")
if name != "admin":
password = input("Enter a password or - if it doesn't exist,\t")
if password == "-":
password = None
if not self.find_user_by_name(name).validation(password):
print("Error. There is no user like this.")
return
self._users.remove(User(name, password))
def user_preferences(self):
print(self.find_user_by_name(self._current_user))
def change_user_status(self):
if self.find_user_by_name(self._current_user).moderation:
name = input("Enter a name.\t")
if not self.find_user_by_name(name):
print("There is no user with this name!")
return
print("Current status: moderation rights - " +
str(self.find_user_by_name(name).moderation))
char = input("Wanna change? [+/-]\t")
if char == "+":
self.find_user_by_name(
name
).moderation = not self.find_user_by_name(name).moderation
else:
print("Current user have no rights to change status.")
@property
def library(self):
return self._library
