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pdfparser.py
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pdfparser.py
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"""
pdfparser: Toma un archivo pdf y lo procesa en busca de liquidaciones de
tarjetas de débito
"""
import re as regex
import datetime as dt
import PyPDF2
# regex plata: [\d\.]*,\d{2}
# Liq\. N. (\d{8}) - Lote N. [\n]?\d{4}\s*(\d{1,}) Ventas? Tj. ?D.bito\$([\d\. ]*,\d{2})
# \d{1,} Ventas? (?:(?:en\s*\d{1,} pagos?)|(?:Tj. ?D.bito))\$[\d\. ]*,\d{2})
class PdfParser():
file_obj = None
pdf_obj = None
tarjeta = ''
sucursal = ''
prototype = {
'fpago': 0.0,
'liqno': 0,
'lote': 0,
'arancel': 0.0,
'impuestos': 0.0,
'importe': 0.0,
'adicionales': 0.0
}
def __init__(self, filename):
self.file_obj = open(filename, 'rb')
self.pdf_obj = PyPDF2.PdfFileReader(self.file_obj)
self._get_datos_liquidacion(filename)
def _get_datos_liquidacion(self, filename):
filename = filename.lower()
datos = regex.findall(r'\d{4}-\d{2}-(\w+)-([\w ]*)\.pdf', filename)
self.tarjeta = datos[0][0]
self.sucursal = datos[0][1]
def _extract_text(self):
raw_text = ''
n = self.pdf_obj.numPages
i = 0
while (i < n):
raw_text += self.pdf_obj.getPage(i).extractText()
i += 1
return raw_text
def _parse_visa(self):
liqs = []
raw_text = self._extract_text()
filas = regex.findall(
r'FECHA DE PAGO[\s\S]*?Total del d.a (?:\$[\d\. ]*,\d{2}){3}',
raw_text)
ano = int(regex.findall(r'\d{2}/\d{2}/(\d{4})\d{15}', raw_text)[0])
# OJO: Matchea credito y debito!
# Devuelve lista de listas
# re_lotes = regex.compile(r'Liq\. N. (\d{8}).*?Lote N. (\d{4}).*?'
# + r'\d{1,} Ventas? (?:(?:en\s*\d{1,} pagos?.*?)|'
# + r'(?:Tj. ?D.bito))\$([\d\. ]*,\d{2})')
re_liqnos = regex.compile(r'Liq\. N. (\d{8})')
re_lotes = regex.compile(r'Lote N. (\d{4})')
re_importes = regex.compile(
r'\d{1,} Ventas? (?:(?:en\s*\d{1,} pagos?.*?)|(?:Tj. ?D.bito))'
+ r'\$([\d\. ]*,\d{2})')
re_arancel = regex.compile(r'Arancel\$([\d\. ]*,\d{2})')
re_impuestos = regex.compile(r'Impositivas\$([\d\. ]*,\d{2})')
re_lapos = regex.compile(r'LaPos\$([\d\. ]*,\d{2})')
re_financieros = regex.compile(r'Financieros\$([\d\. ]*,\d{2})')
re_adicionales = regex.compile(r'Adicional\$([\d\. ]*,\d{2})')
re_fpago = regex.compile(r'FECHA DE PAGO\s*?(\d{2}/\d{2})')
for fila in filas:
fpago = dt.datetime.strptime(re_fpago.findall(
fila)[0] + '/' + str(ano), '%d/%m/%Y').timestamp()
try:
arancel = self._money_to_float(
re_arancel.findall(fila)[0])
except:
arancel = 0.0
try:
impuestos = self._money_to_float(
re_impuestos.findall(fila)[0])
except:
impuestos = 0.0
try:
lapos = self._money_to_float(re_lapos.findall(fila)[0])
except:
lapos = 0.0
try:
financieros = self._money_to_float(
re_financieros.findall(fila)[0])
except:
financieros = 0.0
try:
adicionales = self._money_to_float(
re_adicionales.findall(fila)[0])
except:
adicionales = 0.0
lotes = re_lotes.findall(fila)
liqnos = re_liqnos.findall(fila)
importes = re_importes.findall(fila)
n = len(lotes)
i = 0
while (i < n):
self.prototype['fpago'] = fpago
self.prototype['liqno'] = int(liqnos[i])
self.prototype['lote'] = int(lotes[i])
self.prototype['importe'] = self._money_to_float(importes[i])
self.prototype['arancel'] = arancel / n
self.prototype['impuestos'] = impuestos / n
self.prototype['adicionales'] = (
lapos + financieros + adicionales) / n
liqs.append(self.prototype.copy())
i += 1
return liqs
def _money_to_float(self, money):
return float(money.replace('.', '').replace(',', '.'))
def _parse_maestro(self):
liqs = []
raw_text = self._extract_text()
filas = regex.findall(
r'Venta ctdo.*?F. Pres\d{2}/\d{2}/\d{4}', raw_text)
# Matchea lote e importe
re_ops = regex.compile(
r'Venta ctdo\d{2}/\d{2}/\d{2}\d{6}(\d{3})\d{8}([\d\.]*,\d{2})')
re_arancel = regex.compile(r'ARANCEL-\$([\d\.]*,\d{2})')
re_iva = regex.compile(r'21,00\%-\$([\d\.]*,\d{2})')
# OJO! Puede matchear mas de una retencion!!
re_retenciones = regex.compile(r'RETENCION.*?-\$([\d\.]*,\d{2})')
# OJO! Matchea op. intl. e iva !
re_ops_intl = regex.compile(r'OPER\. INT.*?-\$([\d\.]*,\d{2})')
re_liqno = regex.compile(r'(\d{6})\d{2}/\d{2}/\d{4}')
# La regex esta bien. Hecha asi por el formato de raw_text
re_fpago = regex.compile(r'F\. Pres(\d{2}/\d{2}/\d{4})')
re_percepciones = regex.compile(r'PER.*?-\$([\d\.]*,\d{2})')
for fila in filas:
fpago = dt.datetime.strptime(re_fpago.findall(fila)[
0], '%d/%m/%Y').timestamp()
try:
arancel = self._money_to_float(
re_arancel.findall(fila)[0])
except:
arancel = 0.0
try:
impuestos = self._money_to_float(re_iva.findall(fila)[0])
except:
impuestos = 0.0
try:
liqno = int(re_liqno.findall(fila)[0])
except:
liqno = 0
op_intl = 0.0
for intlop in re_ops_intl.findall(fila):
op_intl += self._money_to_float(intlop)
retenciones = 0.0
for ret in re_retenciones.findall(fila):
retenciones += self._money_to_float(ret)
for per in re_percepciones.findall(fila):
impuestos += self._money_to_float(per)
ops = re_ops.findall(fila)
n = len(ops)
i = 0
while (i < n):
self.prototype['fpago'] = fpago
self.prototype['liqno'] = liqno
self.prototype['lote'] = int(ops[i][0])
self.prototype['importe'] = self._money_to_float(ops[i][1])
self.prototype['arancel'] = arancel / n
self.prototype['impuestos'] = (impuestos + retenciones) / n
self.prototype['adicionales'] = (op_intl) / n
liqs.append(self.prototype.copy())
i += 1
return liqs
# def _parseMastercard(self):
# liqs = []
# raw_text = self._extractText()
# filas = regex.findall(r'lote ctdo.*?F\. Pres\d{2}/\d{2}/\d{4}', raw_text)
# for fila in filas:
def get_liquidaciones(self):
liqs = []
if (self.tarjeta == 'visa' or self.tarjeta == 'cabal'):
liqs = self._parse_visa()
elif (self.tarjeta == 'maestro'):
liqs = self._parse_maestro()
else:
print('No implementado...')
return liqs
if __name__ == '__main__':
p = PdfParser('2018-10-maestro-libertad.pdf')
liqs = p.get_liquidaciones()
for liq in liqs:
for key, value in liq.items():
print(key + ': ' + str(value))
print('\n')