text: from datetime import date
  from getpass import getuser
  import json
  import os
  from pathlib import Path
  from pdb import set_trace as trace
  from pprint import pprint as pp
  from shutil import copy2 as cp
  import site
  import subprocess
  from warnings import warn
  
  from bs4 import BeautifulSoup
  import isbnlib
  import mysql.connector
  # import pdfminer
  import requests
  
  BASEDIR = Path.home() / 'Development/hw-4.2.0'
  site.addsitedir(str(BASEDIR / 'hw'))
  
  from tools import *
  from program import Program
  
  class Library(Program):
      def __init__(self):
          super().__init__()
          self.program_name = 'library'
          self.results = list()
          self.db_connect()
          self.OCLC = 'http://classify.oclc.org'
          self.DDC_FILE = (self.BASEDIR / 'data/deweysummaries.txt').read_text().split('\n')
          # print(str(self.DDC_FILE))
          self.BOOKS_DIR = self.BASEDIR / 'tests/library/books'
  
      def db_connect(self):
          self.cnx = mysql.connector.connect(user=getuser(),
                                             password=(Path.home()/self.settings['pass_file']).read_text(),
                                             host=self.settings['server_ip'],
                                             database=self.program_name)
          self.cursor = self.cnx.cursor()
  
  
      def process_file(self, p):
          self.info(f'Processing file {str(p)}')
          if p.name.endswith('.pdf'):
              l = list()
              try:
                  l = list(map(lambda s: str(s).lstrip('b').strip("'"),
                               [s for s in pdf2txt(p, lines=True) if s.startswith('ISBN')]))
              except subprocess.CalledProcessError:
                  warn('pdf2txt.py returned an error code!')
                  return
              if l:
                  info = dict()
                  for n in l:
                      try:
                          info = isbnlib.meta(l[0].split()[-1])
                      except isbnlib.NotValidISBNError as e:
                          warn(f'Invalid ISBN in file {p.name} : {l[0].split()[-1]}')
                          break
                      if info:
                          if self.DEBUG:
                              print()
                              print(f'Info for {str(p)}:')
                              pp(info)
                          link = f'{self.OCLC}/classify2/ClassifyDemo?search-standnum-txt={info["ISBN-13"]}&startRec=0'
                          if self.DEBUG:
                              print(f'First Link: {link}')
                          response = requests.get(link)
                          soup = BeautifulSoup(response.text, features='lxml', parser='lxml')
                          ddc = soup.find('tbody').find_all('td')[1].text
  
                          # numbers = [ddc[0] + '00', ddc[:2] + '0', ddc[:3]]
                          # classes = list()
                          # for i, n in enumerate(numbers):
                          #     classes.extend([' '.join(s.split()[1:]) for s in self.DDC_FILE if s.startswith(numbers[i])])
                          #     print(classes)
                          # classes = [s for s in classes if len(s)]
                          # trace()
                          # classes = [numbers[i] + ' ' + classes[i] for i in range(3)]
                          # classdir = '/'.join(classes)
  
                          classdir = [s for s in self.DDC_FILE if s.startswith(ddc[:3])][0]
                          ftp = login()
                          ftp.cwd('/srv/www/htdocs/library/books')
                          if not exists(ftp, classdir):
                              ftp.mkd(classdir)
                          ftp.cwd(classdir)
                          if not exists(ftp, dest):
                              with p.open() as f:
                                  ftp.storlines(f'PUT {p.name}', f)
                          else:
                              self.info(f'File {p.name} already exists.')
                          ftp.close()
  
                          statement = f'SELECT * FROM books WHERE ISBN=\'{info["ISBN-13"]}\';'
                          self.cursor.execute(statement)
                          # result = self.cnx.cmd_query(statement)
                          if not len(list(self.cursor)):
                              for author in info["Authors"]:
                                  names = author.split()
                                  statement = f"""SELECT * FROM Authors WHERE First='{author[0]}' AND Last='{author[-1]}';"""
                                  self.cursor.execute(statement)
                                  if not len(list(self.cursor)):
                                      statement = f"""INSERT INTO Authors (First, Last) VALUES('{names[0]}', '{names[-1]}');"""
                                      self.cursor.execute(statement)
                                      if len(names) > 2:
                                          middle = sum(names[1:-1])
                                          statement = f"""INSERT INTO Authors (Middle) VALUES('{middle}');"""
                                  pub = info['Publisher']
                                  statement = f"""SELECT FROM pubs * WHERE Publisher='{pub}';"""
                                  if not len(list(self.cursor)):
                                      statement = f"""INSERT INTO pubs (Publisher) VALUES('{pub}');"""
                                      self.cursor.execute(statement)
  
                              statement = f"""INSERT INTO books(Title, Category, Filepath, Date, ISBN) VALUES('{info["Title"]}', '{ddc}', '{p.name}', {date(int(info["Year"]),1,1)}, {info["ISBN-13"]});"""
                              self.cursor.execute(statement);
                              self.cnx.commit()
                              statement = f"""SELECT ID FROM books WHERE TITLE='{info['Title']}';"""
                              self.cursor.execute(statement)
                              book_id = self.cursor.fetchone()
                              print(book_id)
                              if self.DEBUG: trace()
                              if not book_id:
                                  warn('Failed to get book record!')
                                  return
                              else:
                                  print(f'Book ID: {book_id}')
                                  for i, author in enumerate(info['Authors']):
                                      names = author.split()
                                      print(f'{names=}')
                                      statement = f"""SELECT ID FROM Authors WHERE First='{names[0]}' AND Last='{names[-1]}';"""
                                      self.cursor.execute(statement)
                                      author_id = self.cursor.fetchone()
                                      print(f'{author_id=}')
                                      if not author_id:
                                          warn('Failed to get author record!')
                                          return
                                      else:
                                          statement = f"""INSERT INTO contribs(Book, Author, Priority) VALUES({book_id[0]}, {author_id[0]}, {i})"""
                                          print(statement)
                                          self.cursor.execute(statement)
                                          self.cnx.commit()
                          else:
                              warn(f'Book {info["Title"]} is already in the database.')
                      else:
                          warn(f'Failed to get info for {p.name}')
              else:
                  warn(f'Failed to get ISBN for {p.name}')
          else:
              warn(f'File {str(p)} is not a book')
  
      def run(self):
          self.process_args()
          self.shutdown()
  
      def process_args(self):
          if not self.settings['args']: self.settings['args'] = ['*']
          super().process_args()
  
      def shutdown(self):
          self.cnx.commit()
          self.cursor.close()
          self.cnx.close()
  
  def main():
      Library().run()
  
  if __name__ == '__main__':
      main()
  