BNP_PDF_statement_parser/bnp_pdf_statement_parser.py

82 lines
2.7 KiB
Python
Executable File

#!/usr/bin/python3
# Depends on `pdftotext`.
import os
import subprocess
import re
path = f'/home/benjamin/Desktop/bens_folder/bazaar/documents/bnp/bank_statements/'
os.chdir(path)
'''
Assuming file hierarchy like:
2022
├── 20221121.pdf
└── 20221221.pdf
2023
├── 20230123.pdf
└── 20230221.pdf
'''
def execute(command):
return subprocess.check_output(command).decode('utf-8')
def getTextFromPdf(pdfPath):
return execute(['pdftotext', '-raw', pdfPath, '-'])
firstLineOfPaymentRegex = re.compile('\d{2}\.\d{2} \d{2}\.\d{2} \d+,\d{2}')
endPageAfterTheFirstOneRegex = re.compile('P\. \d+/\d+')
soldeCrediteurAuRegex = re.compile('SOLDE CREDITEUR AU \d{2}\.\d{2}\.\d{4}')
for folder in os.listdir():
for file in os.listdir(folder):
#folder = '2022'
#file = '20220321.pdf'
filePath = f'{folder}/{file}'
print(filePath)
content = getTextFromPdf(filePath)
lines = content.splitlines()
started = False
firstPage = True
initialAmount = None
currentAmount = None
date = None
comment = []
for line in lines:
if not started:
# We are interested in the content after this line:
if soldeCrediteurAuRegex.match(line) is not None or (line.startswith('Date Nature des opérations Valeur Débit Crédit') and not firstPage):
if soldeCrediteurAuRegex.match(line):
initialAmount = float(soldeCrediteurAuRegex.sub('', line).replace(',', '.').replace(' ', ''))
currentAmount = initialAmount
print('Initial amount', initialAmount)
print()
started = True
continue
else:
# We aren't interested in the content after this line:
if line.startswith('BNP PARIBAS SA au capital de') or endPageAfterTheFirstOneRegex.match(line) is not None:
firstPage = False
started = False
continue
# We aren't interested in the content after this line
elif line.startswith('TOTAL DES OPERATIONS'):
break
if firstLineOfPaymentRegex.match(line) is not None:
if date is not None:
print(date, valeur, amount, currentAmount)
print('\n'.join(comment))
print()
date, valeur, amount = line.split()
amount = float(amount.replace(',', '.'))
currentAmount -= amount
comment = []
else:
comment += [line]
break
break