738 lines
21 KiB
Python
738 lines
21 KiB
Python
# This file is part of facho. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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import hashlib
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from functools import reduce
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import copy
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import dataclasses
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from dataclasses import dataclass
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from datetime import datetime, date
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from collections import defaultdict
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import decimal
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from decimal import Decimal
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import typing
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from ..data.dian import codelist
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DECIMAL_PRECISION = 6
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class AmountCurrencyError(TypeError):
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pass
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@dataclass
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class Currency:
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code: str
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def __eq__(self, other):
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return self.code == other.code
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def __str__(self):
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return self.code
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class Collection:
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def __init__(self, array):
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self.array = array
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def filter(self, filterer):
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new_array = filter(filterer, self.array)
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return self.__class__(new_array)
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def map(self, mapper):
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new_array = map(mapper, self.array)
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return self.__class__(new_array)
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def sum(self):
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return sum(self.array)
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class AmountCollection(Collection):
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def sum(self):
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total = Amount(0)
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for v in self.array:
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total += v
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return total
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class Amount:
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def __init__(self, amount: int or float or str or Amount, currency: Currency = Currency('COP')):
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#DIAN 1.7.-2020: 1.2.3.1
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if isinstance(amount, Amount):
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if amount < Amount(0.0):
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raise ValueError('amount must be positive >= 0')
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self.amount = amount.amount
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self.currency = amount.currency
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else:
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if float(amount) < 0:
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raise ValueError('amount must be positive >= 0')
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self.amount = Decimal(amount, decimal.Context(prec=DECIMAL_PRECISION,
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#DIAN 1.7.-2020: 1.2.1.1
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rounding=decimal.ROUND_HALF_EVEN ))
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self.currency = currency
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def fromNumber(self, val):
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return Amount(val, currency=self.currency)
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def round(self, prec):
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return Amount(round(self.amount, prec), currency=self.currency)
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def __round__(self, prec):
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return round(self.amount, prec)
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def __str__(self):
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return str(self.float())
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def __lt__(self, other):
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if not self.is_same_currency(other):
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raise AmountCurrencyError()
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return round(self.amount, DECIMAL_PRECISION) < round(other, 2)
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def __eq__(self, other):
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if not self.is_same_currency(other):
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raise AmountCurrencyError()
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return round(self.amount, DECIMAL_PRECISION) == round(other.amount, DECIMAL_PRECISION)
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def _cast(self, val):
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if type(val) in [int, float]:
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return self.fromNumber(val)
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if isinstance(val, Amount):
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return val
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raise TypeError("cant cast to amount")
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def __add__(self, rother):
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other = self._cast(rother)
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if not self.is_same_currency(other):
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raise AmountCurrencyError()
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return Amount(self.amount + other.amount, self.currency)
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def __sub__(self, rother):
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other = self._cast(rother)
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if not self.is_same_currency(other):
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raise AmountCurrencyError()
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return Amount(self.amount - other.amount, self.currency)
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def __mul__(self, rother):
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other = self._cast(rother)
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if not self.is_same_currency(other):
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raise AmountCurrencyError()
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return Amount(self.amount * other.amount, self.currency)
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def is_same_currency(self, other):
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return self.currency == other.currency
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def truncate_as_string(self, prec):
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parts = str(self.float()).split('.', 1)
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return '%s.%s' % (parts[0], parts[1][0:prec].ljust(prec,'0'))
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def float(self):
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return float(round(self.amount, DECIMAL_PRECISION))
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class Quantity:
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def __init__(self, val, code):
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if type(val) not in [float, int]:
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raise ValueError('val expected int or float')
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if code not in codelist.UnidadesMedida:
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raise ValueError("code [%s] not found" % (code))
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self.value = Amount(val)
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self.code = code
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def __mul__(self, other):
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return self.value * other
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def __lt__(self, other):
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return self.value < other
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def __str__(self):
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return str(self.value)
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def __repr__(self):
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return str(self)
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@dataclass
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class Item:
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scheme_name: str
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scheme_agency_id: str
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scheme_id: str
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description: str
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id: str
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class StandardItem(Item):
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def __init__(self, id_: str, description: str = ''):
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super().__init__(id=id_,
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description=description,
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scheme_name='',
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scheme_id='999',
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scheme_agency_id='')
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class UNSPSCItem(Item):
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def __init__(self, id_: str, description: str = ''):
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super().__init__(id=id_,
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description=description,
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scheme_name='UNSPSC',
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scheme_id='001',
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scheme_agency_id='10')
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@dataclass
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class Country:
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code: str
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name: str = ''
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def __post_init__(self):
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if self.code not in codelist.Paises:
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raise ValueError("code [%s] not found" % (self.code))
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self.name = codelist.Paises[self.code]['name']
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@dataclass
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class CountrySubentity:
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code: str
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name: str = ''
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def __post_init__(self):
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if self.code not in codelist.Departamento:
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raise ValueError("code [%s] not found" % (self.code))
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self.name = codelist.Departamento[self.code]['name']
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@dataclass
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class City:
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code: str
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name: str = ''
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def __post_init__(self):
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if self.code not in codelist.Municipio:
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raise ValueError("code [%s] not found" % (self.code))
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self.name = codelist.Municipio[self.code]['name']
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@dataclass
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class Address:
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name: str
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street: str = ''
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city: City = City('05001')
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country: Country = Country('CO')
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countrysubentity: CountrySubentity = CountrySubentity('05')
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@dataclass
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class PartyIdentification:
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number: str
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dv: str
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type_fiscal: str
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def __str__(self):
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return self.number
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def __eq__(self, other):
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return str(self) == str(other)
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def full(self):
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return "%s%s" % [self.number, self.dv]
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def __post_init__(self):
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if self.type_fiscal not in codelist.TipoIdFiscal:
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raise ValueError("type_fiscal [%s] not found" % (self.type_fiscal))
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@dataclass
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class Responsability:
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codes: list
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def __str__(self):
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return ';'.join(self.codes)
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def __eq__(self, other):
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return str(self) == str(other)
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def __iter__(self):
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return iter(self.codes)
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def __post_init__(self):
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for code in self.codes:
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if code not in codelist.TipoResponsabilidad:
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raise ValueError("code %s not found" % (code))
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@dataclass
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class TaxScheme:
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code: str
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name: str = ''
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def __post_init__(self):
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if self.code not in codelist.TipoImpuesto:
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raise ValueError("code not found")
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self.name = codelist.TipoImpuesto[self.code]['name']
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@dataclass
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class Party:
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name: str
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ident: str
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responsability_code: typing.List[Responsability]
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responsability_regime_code: str
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organization_code: str
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tax_scheme: TaxScheme = TaxScheme('01')
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phone: str = ''
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address: Address = Address('')
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email: str = ''
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legal_name: str = ''
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legal_company_ident: str = ''
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legal_address: str = ''
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def __post_init__(self):
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if self.organization_code not in codelist.TipoOrganizacion:
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raise ValueError("organization_code not found")
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@dataclass
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class TaxScheme:
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code: str = '01'
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@property
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def name(self):
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return codelist.TipoImpuesto[self.code]['name']
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def __post_init__(self):
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if self.code not in codelist.TipoImpuesto:
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raise ValueError("code [%s] not found" % (self.code))
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@dataclass
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class TaxSubTotal:
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percent: float
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scheme: typing.Optional[TaxScheme] = None
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tax_amount: Amount = Amount(0.0)
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def calculate(self, invline):
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if self.percent is not None:
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self.tax_amount = invline.total_amount * Amount(self.percent / 100)
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@dataclass
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class TaxTotal:
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subtotals: list
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tax_amount: Amount = Amount(0.0)
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taxable_amount: Amount = Amount(0.0)
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def calculate(self, invline):
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self.taxable_amount = invline.total_amount
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for subtax in self.subtotals:
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subtax.calculate(invline)
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self.tax_amount += subtax.tax_amount
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class TaxTotalOmit(TaxTotal):
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def __init__(self):
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super().__init__([])
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def calculate(self, invline):
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pass
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@dataclass
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class Price:
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amount: Amount
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type_code: str
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type: str
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quantity: int = 1
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def __post_init__(self):
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if self.type_code not in codelist.CodigoPrecioReferencia:
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raise ValueError("type_code [%s] not found" % (self.type_code))
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if not isinstance(self.quantity, int):
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raise ValueError("quantity must be int")
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self.amount *= self.quantity
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@dataclass
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class PaymentMean:
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DEBIT = '01'
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CREDIT = '02'
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def __init__(self, id: str, code: str, due_at: datetime, payment_id: str):
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if code not in codelist.MediosPago:
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raise ValueError("code not found")
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self.id = id
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self.code = code
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self.due_at = due_at
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self.payment_id = payment_id
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@dataclass
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class PrePaidPayment:
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#DIAN 1.7.-2020: FBD03
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paid_amount: Amount = Amount(0.0)
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@dataclass
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class BillingReference:
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ident: str
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uuid: str
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date: date
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class CreditNoteDocumentReference(BillingReference):
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"""
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ident: Prefijo + Numero de la factura relacionada
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uuid: CUFE de la factura electronica
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date: fecha de emision de la factura relacionada
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"""
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class DebitNoteDocumentReference(BillingReference):
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"""
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ident: Prefijo + Numero de la factura relacionada
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uuid: CUFE de la factura electronica
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date: fecha de emision de la factura relacionada
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"""
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class InvoiceDocumentReference(BillingReference):
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"""
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ident: Prefijo + Numero de la nota credito relacionada
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uuid: CUDE de la nota credito relacionada
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date: fecha de emision de la nota credito relacionada
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"""
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@dataclass
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class AllowanceChargeReason:
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code: str
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reason: str
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def __post_init__(self):
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if self.code not in codelist.CodigoDescuento:
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raise ValueError("code [%s] not found" % (self.code))
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@dataclass
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class AllowanceCharge:
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#DIAN 1.7.-2020: FAQ03
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charge_indicator: bool = True
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amount: Amount = Amount(0.0)
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reason: AllowanceChargeReason = None
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#Valor Base para calcular el descuento o el cargo
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base_amount: typing.Optional[Amount] = Amount(0.0)
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# Porcentaje: Porcentaje que aplicar.
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multiplier_factor_numeric: Amount = Amount(1.0)
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def isCharge(self):
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return self.charge_indicator == True
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def isDiscount(self):
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return self.charge_indicator == False
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def asCharge(self):
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self.charge_indicator = True
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def asDiscount(self):
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self.charge_indicator = False
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def hasReason(self):
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return self.reason is not None
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def set_base_amount(self, amount):
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self.base_amount = amount
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class AllowanceChargeAsDiscount(AllowanceCharge):
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def __init__(self, amount: Amount = Amount(0.0)):
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self.charge_indicator = False
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self.amount = amount
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@dataclass
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class InvoiceLine:
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# RESOLUCION 0004: pagina 155
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quantity: Quantity
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description: str
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item: Item
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price: Price
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# TODO mover a Invoice
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# ya que al reportar los totales es sobre
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# la factura y el percent es unico por type_code
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# de subtotal
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tax: typing.Optional[TaxTotal]
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allowance_charge: typing.List[AllowanceCharge] = dataclasses.field(default_factory=list)
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def add_allowance_charge(self, charge):
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if not isinstance(charge, AllowanceCharge):
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raise TypeError('charge invalid type expected AllowanceCharge')
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charge.set_base_amount(self.total_amount_without_charge)
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self.allowance_charge.add(charge)
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@property
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def total_amount_without_charge(self):
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return (self.quantity * self.price.amount)
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@property
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def total_amount(self):
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charge = AmountCollection(self.allowance_charge)\
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.filter(lambda charge: charge.isCharge())\
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.map(lambda charge: charge.amount)\
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.sum()
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discount = AmountCollection(self.allowance_charge)\
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.filter(lambda charge: charge.isDiscount())\
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.map(lambda charge: charge.amount)\
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.sum()
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return self.total_amount_without_charge + charge - discount
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@property
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def total_tax_inclusive_amount(self):
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# FAU06
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return self.total_amount + self.tax.tax_amount
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@property
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def total_tax_exclusive_amount(self):
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return self.tax.taxable_amount
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@property
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def tax_amount(self):
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return self.tax.tax_amount
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@property
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def taxable_amount(self):
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return self.tax.taxable_amount
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def calculate(self):
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self.tax.calculate(self)
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def __post_init__(self):
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if not isinstance(self.quantity, Quantity):
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raise ValueError("quantity must be Amount")
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if self.tax is None:
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self.tax = TaxTotalOmit()
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@dataclass
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class LegalMonetaryTotal:
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line_extension_amount: Amount = Amount(0.0)
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tax_exclusive_amount: Amount = Amount(0.0)
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tax_inclusive_amount: Amount = Amount(0.0)
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charge_total_amount: Amount = Amount(0.0)
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allowance_total_amount: Amount = Amount(0.0)
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payable_amount: Amount = Amount(0.0)
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prepaid_amount: Amount = Amount(0.0)
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def calculate(self):
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#DIAN 1.7.-2020: FAU14
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self.payable_amount = \
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self.tax_inclusive_amount \
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+ self.allowance_total_amount \
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+ self.charge_total_amount \
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- self.prepaid_amount
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class NationalSalesInvoiceDocumentType(str):
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def __str__(self):
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# 6.1.3
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return '01'
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class CreditNoteDocumentType(str):
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def __str__(self):
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# 6.1.3
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return '91'
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class DebitNoteDocumentType(str):
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def __str__(self):
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# 6.1.3
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return '92'
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class Invoice:
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def __init__(self, type_code: str):
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if str(type_code) not in codelist.TipoDocumento:
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raise ValueError("type_code [%s] not found")
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self.invoice_period_start = None
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self.invoice_period_end = None
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self.invoice_issue = None
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self.invoice_ident = None
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self.invoice_operation_type = None
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self.invoice_legal_monetary_total = LegalMonetaryTotal()
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self.invoice_customer = None
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self.invoice_supplier = None
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self.invoice_payment_mean = None
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self.invoice_payments = []
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self.invoice_lines = []
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self.invoice_allowance_charge = []
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self.invoice_prepaid_payment = []
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self.invoice_billing_reference = None
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self.invoice_type_code = str(type_code)
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self.invoice_ident_prefix = None
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def set_period(self, startdate, enddate):
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self.invoice_period_start = startdate
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self.invoice_period_end = enddate
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def set_issue(self, dtime: datetime):
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if dtime.tzname() not in ['UTC-05:00', '-05', None]:
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raise ValueError("dtime must be UTC-05:00")
|
|
|
|
self.invoice_issue = dtime
|
|
|
|
def _set_ident_prefix_automatic(self):
|
|
if not self.invoice_ident_prefix:
|
|
prefix = ''
|
|
for idx, val in enumerate(self.invoice_ident):
|
|
if val.isalpha():
|
|
prefix += val
|
|
else:
|
|
break
|
|
|
|
if len(prefix) <= 4:
|
|
self.invoice_ident_prefix = prefix
|
|
else:
|
|
raise ValueError('ident prefix failed to get, expected 0 to 4 chars')
|
|
|
|
def set_ident(self, ident: str):
|
|
"""
|
|
identificador de factura; prefijo + consecutivo
|
|
"""
|
|
self.invoice_ident = ident
|
|
self._set_ident_prefix_automatic()
|
|
|
|
def _check_ident_prefix(self, prefix):
|
|
if len(prefix) != 4:
|
|
raise ValueError('prefix must be 4 length')
|
|
|
|
def set_ident_prefix(self, prefix: str):
|
|
"""
|
|
prefijo de facturacion: ejemplo SETP
|
|
"""
|
|
self._check_ident_prefix(prefix)
|
|
self.invoice_ident_prefix = prefix
|
|
|
|
def set_supplier(self, party: Party):
|
|
self.invoice_supplier = party
|
|
|
|
def set_customer(self, party: Party):
|
|
self.invoice_customer = party
|
|
|
|
def set_payment_mean(self, payment_mean: PaymentMean):
|
|
self.invoice_payment_mean = payment_mean
|
|
|
|
def _get_codelist_tipo_operacion(self):
|
|
return codelist.TipoOperacionF
|
|
|
|
def set_operation_type(self, operation):
|
|
if operation not in self._get_codelist_tipo_operacion():
|
|
raise ValueError("operation not found")
|
|
|
|
self.invoice_operation_type = operation
|
|
|
|
def add_allowance_charge(self, charge: AllowanceCharge):
|
|
self.invoice_allowance_charge.append(charge)
|
|
|
|
def add_invoice_line(self, line: InvoiceLine):
|
|
self.invoice_lines.append(line)
|
|
|
|
def add_prepaid_payment(self, paid: PrePaidPayment):
|
|
self.invoice_prepaid_payment.append(paid)
|
|
|
|
def set_billing_reference(self, billing_reference: BillingReference):
|
|
self.invoice_billing_reference = billing_reference
|
|
|
|
def accept(self, visitor):
|
|
visitor.visit_payment_mean(self.invoice_payment_mean)
|
|
visitor.visit_customer(self.invoice_customer)
|
|
visitor.visit_supplier(self.invoice_supplier)
|
|
for payment in self.invoice_payments:
|
|
visitor.visit_payment(payment)
|
|
for invline in self.invoice_lines:
|
|
visitor.visit_invoice_line(invline)
|
|
|
|
def _calculate_legal_monetary_total(self):
|
|
for invline in self.invoice_lines:
|
|
self.invoice_legal_monetary_total.line_extension_amount += invline.total_amount
|
|
self.invoice_legal_monetary_total.tax_exclusive_amount += invline.total_tax_exclusive_amount
|
|
#DIAN 1.7.-2020: FAU6
|
|
self.invoice_legal_monetary_total.tax_inclusive_amount += invline.total_tax_inclusive_amount
|
|
|
|
#DIAN 1.7.-2020: FAU08
|
|
self.invoice_legal_monetary_total.allowance_total_amount = AmountCollection(self.invoice_allowance_charge)\
|
|
.filter(lambda charge: charge.isDiscount())\
|
|
.map(lambda charge: charge.amount)\
|
|
.sum()
|
|
|
|
#DIAN 1.7.-2020: FAU10
|
|
self.invoice_legal_monetary_total.charge_total_amount = AmountCollection(self.invoice_allowance_charge)\
|
|
.filter(lambda charge: charge.isCharge())\
|
|
.map(lambda charge: charge.amount)\
|
|
.sum()
|
|
|
|
#DIAN 1.7.-2020: FAU12
|
|
self.invoice_legal_monetary_total.prepaid_amount = AmountCollection(self.invoice_prepaid_payment)\
|
|
.map(lambda paid: paid.paid_amount)\
|
|
.sum()
|
|
|
|
#DIAN 1.7.-2020: FAU14
|
|
self.invoice_legal_monetary_total.calculate()
|
|
|
|
def _refresh_charges_base_amount(self):
|
|
if self.invoice_allowance_charge:
|
|
for invline in self.invoice_lines:
|
|
if invline.allowance_charge:
|
|
# TODO actualmente solo uno de los cargos es permitido
|
|
raise ValueError('allowance charge in invoice exclude invoice line')
|
|
|
|
# cargos a nivel de factura
|
|
for charge in self.invoice_allowance_charge:
|
|
charge.set_base_amount(self.invoice_legal_monetary_total.line_extension_amount)
|
|
|
|
def calculate(self):
|
|
for invline in self.invoice_lines:
|
|
invline.calculate()
|
|
self._calculate_legal_monetary_total()
|
|
self._refresh_charges_base_amount()
|
|
|
|
class NationalSalesInvoice(Invoice):
|
|
def __init__(self):
|
|
super().__init__(NationalSalesInvoiceDocumentType())
|
|
|
|
|
|
class CreditNote(Invoice):
|
|
def __init__(self, invoice_document_reference: BillingReference):
|
|
super().__init__(CreditNoteDocumentType())
|
|
|
|
if not isinstance(invoice_document_reference, BillingReference):
|
|
raise TypeError('invoice_document_reference invalid type')
|
|
self.invoice_billing_reference = invoice_document_reference
|
|
|
|
def _get_codelist_tipo_operacion(self):
|
|
return codelist.TipoOperacionNC
|
|
|
|
def _check_ident_prefix(self, prefix):
|
|
if len(prefix) != 6:
|
|
raise ValueError('prefix must be 6 length')
|
|
|
|
def _set_ident_prefix_automatic(self):
|
|
if not self.invoice_ident_prefix:
|
|
self.invoice_ident_prefix = self.invoice_ident[0:6]
|
|
|
|
|
|
class DebitNote(Invoice):
|
|
def __init__(self, invoice_document_reference: BillingReference):
|
|
super().__init__(DebitNoteDocumentType())
|
|
|
|
if not isinstance(invoice_document_reference, BillingReference):
|
|
raise TypeError('invoice_document_reference invalid type')
|
|
self.invoice_billing_reference = invoice_document_reference
|
|
|
|
def _get_codelist_tipo_operacion(self):
|
|
return codelist.TipoOperacionND
|
|
|
|
def _check_ident_prefix(self, prefix):
|
|
if len(prefix) != 6:
|
|
raise ValueError('prefix must be 6 length')
|
|
|
|
def _set_ident_prefix_automatic(self):
|
|
if not self.invoice_ident_prefix:
|
|
self.invoice_ident_prefix = self.invoice_ident[0:6]
|
|
|