def parsing_book(self, link: str) -> dict:
"""
Parse the site and writes data about the book to the dictionary.
If AttributeError (is an invalid reference), the cause is logged
and the exception is passed to a higher level.
"""
try:
if 'https://www.labirint.ru/books/' in link:
lab = labirint.Labirint()
detail_book = lab.parsing(link)
self.save_photo(detail_book)
return detail_book.copy()
elif 'https://www.chitai-gorod.ru/catalog/book/' in link:
ch_gorod = chitai_gorod.ChitaiGorod()
detail_book = ch_gorod.parsing(self.shorten_link(link))
self.save_photo(detail_book)
return detail_book.copy()
elif 'https://book24.ru/product/' in link:
book24_ = book24.Book24()
detail_book = book24_.parsing(self.shorten_link(link))
self.save_photo(detail_book)
return detail_book.copy()
except Exception as er:
logger.show_error(system="parser_manager", error=repr(er))
raise AttributeError
def check_book():
"""
This method checks book discounts every 36 minutes and removes books from which no one is subscribed.
If there is a discount, then it calls the method of notifying subscribers.
"""
parser = parser_manager.ParserManager()
bot_ = bot.Bot()
while True:
database = Database()
books = database.get_books()
database.delete_empty_subscriptions()
for book in books:
try:
book_detail = parser.parsing_book(book['link'])
if book_detail['price'] != book['price']:
database.change_price(book['link'],
book_detail['price'])
if book_detail['price'] < book['price']:
sale = 100 - int(
book_detail['price'] / book['price'] * 100)
for follower in book['followers']:
if database.check_service(follower):
bot_.send_notification(
follower, book_detail, sale)
except AttributeError as ae:
logger.show_error(system="Book24", error=repr(ae))
database.__del__()
time.sleep(2200)
def parsing(self, link):
detail_book = {}
soup = self.get_soup(link)
try:
detail_book['link'] = link
detail_book['title'] = self.get_title(soup)
detail_book['price'] = self.get_price(soup)
detail_book['image_link'] = self.get_image_link(soup)
detail_book['image_name'] = self.get_image_name(detail_book['image_link'])
except (AttributeError, IndexError) as ae:
logger.show_error(system="ChitaiGorod", error=repr(ae))
raise AttributeError
return detail_book