107 lines
3.9 KiB
Python
Executable File
107 lines
3.9 KiB
Python
Executable File
#!/usr/bin/env python
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# Depends on `pdftotext`.
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import os
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import subprocess
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import re
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import matplotlib.pyplot as plt
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import matplotlib.ticker as ticker
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path = f'/home/benjamin/Desktop/bens_folder/bazaar/documents/bnp/bank_statements/'
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os.chdir(path)
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'''
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Assuming file hierarchy like:
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2022
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├── 20221121.pdf
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└── 20221221.pdf
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2023
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├── 20230123.pdf
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└── 20230221.pdf
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'''
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def execute(command):
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return subprocess.check_output(command).decode('utf-8')
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def getTextFromPdf(pdfPath):
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return execute(['pdftotext', '-raw', pdfPath, '-'])
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firstLineOfPaymentRegex = re.compile('\\d{2}\\.\\d{2} \\d{2}\\.\\d{2} \\d+,\\d{2}')
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endPageAfterTheFirstOneRegex = re.compile('P\\. \\d+/\\d+')
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soldeCrediteurAuRegex = re.compile('SOLDE CREDITEUR AU \\d{2}\\.\\d{2}\\.\\d{4}')
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totalDesOperationsRegex = re.compile('TOTAL\\ DES\\ OPERATIONS\\ ([0-9 ]+,\\d{2})\\ ([0-9 ]+,\\d{2})')
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PRINT_TRANSACTIONS = False
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totalMonthlyDebits = []
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totalMonthlyCredits = []
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for folder in sorted(os.listdir()):
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for file in sorted(os.listdir(folder)):
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#folder = '2022'
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#file = '20220321.pdf'
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filePath = f'{folder}/{file}'
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print(filePath)
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content = getTextFromPdf(filePath)
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lines = content.splitlines()
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started = False
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firstPage = True
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initialAmount = None
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currentAmount = None
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date = None
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comment = []
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for line in lines:
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if not started:
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# We are interested in the content after this line:
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if soldeCrediteurAuRegex.match(line) is not None or (line.startswith('Date Nature des opérations Valeur Débit Crédit') and not firstPage):
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if soldeCrediteurAuRegex.match(line):
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initialAmount = float(soldeCrediteurAuRegex.sub('', line).replace(',', '.').replace(' ', ''))
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currentAmount = initialAmount
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print('Initial amount', initialAmount)
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print()
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started = True
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continue
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else:
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# We aren't interested in the content after this line:
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if line.startswith('BNP PARIBAS SA au capital de') or endPageAfterTheFirstOneRegex.match(line) is not None:
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firstPage = False
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started = False
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continue
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# We aren't interested in the content after this line
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elif line.startswith('TOTAL DES OPERATIONS'):
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totalDesOperationsRegexMatch = totalDesOperationsRegex.match(line)
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totalMonthlyDebit, totalMonthlyCredit = [float(group.replace(',', '.').replace(' ', '')) for group in totalDesOperationsRegexMatch.groups()]
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print(f'Total monthly debit: {totalMonthlyDebit}')
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print(f'Total monthly credit: {totalMonthlyCredit}')
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totalMonthlyDebits += [totalMonthlyDebit]
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totalMonthlyCredits += [totalMonthlyCredit]
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break
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if firstLineOfPaymentRegex.match(line) is not None:
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if date is not None and PRINT_TRANSACTIONS:
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print(date, valeur, amount, currentAmount)
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print('\n'.join(comment))
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print()
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date, valeur, amount = line.split()
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amount = float(amount.replace(',', '.'))
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currentAmount -= amount
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comment = []
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else:
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comment += [line]
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#break
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#break
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fig, ax = plt.subplots()
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plt.title('Monthly debits and credits')
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plt.xlabel('Date')
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plt.ylabel('€')
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ALPHA = 0.5
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xTicks = range(len(totalMonthlyDebits))
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plt.bar(xTicks, totalMonthlyDebits, alpha = ALPHA, label = 'Debit')
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plt.bar(xTicks, totalMonthlyCredits, alpha = ALPHA, label = 'Credit')
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plt.legend()
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ax.yaxis.set_major_formatter(ticker.StrMethodFormatter('{x:,}'))
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plt.show() |