bit4bit@riseup.net
2aa0107579
FossilOrigin-Name: 1c360b4b29bb4fa1909ca1daae5b18cb01a56212cd84d71e7562cf700a5d7006
442 lines
12 KiB
Python
442 lines
12 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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from dataclasses import dataclass
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from datetime import datetime
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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 Amount, currency: Currency = Currency('COP')):
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if isinstance(amount, Amount):
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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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self.amount = Decimal(amount, decimal.Context(prec=DECIMAL_PRECISION, rounding=decimal.ROUND_HALF_DOWN ))
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self.currency = 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 '%.06f' % self.amount
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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 __add__(self, other):
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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, other):
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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, other):
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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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@dataclass
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class Item:
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description: str
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id: str
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@dataclass
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class StandardItem(Item):
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pass
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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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@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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@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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for code in self.responsability_code:
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if code not in codelist.TipoResponsabilidad:
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raise ValueError("responsability_code %s not found" % (code))
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@dataclass
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class TaxSubTotal:
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percent: float
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tax_scheme_ident: str = '01'
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tax_scheme_name: str = 'IVA'
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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.tax_amount = invline.total_amount * Amount(self.percent / 100)
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self.taxable_amount = invline.total_amount
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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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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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self.taxable_amount += subtax.taxable_amount
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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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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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@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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def __init__(self, ident: str, uuid: str, date: str):
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self.ident = ident
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self.uuid = uuid
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self.date = date
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@dataclass
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class InvoiceLine:
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# RESOLUCION 0004: pagina 155
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quantity: int
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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: TaxTotal
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@property
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def total_amount(self):
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return Amount(self.quantity) * self.price.amount
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@property
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def total_tax_inclusive_amount(self):
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return self.tax.taxable_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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@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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@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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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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class Invoice:
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def __init__(self):
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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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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")
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self.invoice_issue = dtime
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def set_ident(self, ident: str):
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self.invoice_ident = ident
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def set_supplier(self, party: Party):
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self.invoice_supplier = party
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def set_customer(self, party: Party):
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self.invoice_customer = party
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def set_payment_mean(self, payment_mean: PaymentMean):
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self.invoice_payment_mean = payment_mean
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def set_operation_type(self, operation):
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if operation not in codelist.TipoOperacionF:
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raise ValueError("operation not found")
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self.invoice_operation_type = operation
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def add_allownace_charge(self, charge: AllowanceCharge):
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self.invoice_allowance_charge.append(charge)
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def add_invoice_line(self, line: InvoiceLine):
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self.invoice_lines.append(line)
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def add_prepaid_payment(self, paid: PrePaidPayment):
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self.invoice_prepaid_payment.append(paid)
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def set_billing_reference(self, billing_reference: BillingReference):
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self.invoice_billing_reference = billing_reference
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def accept(self, visitor):
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visitor.visit_payment_mean(self.invoice_payment_mean)
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visitor.visit_customer(self.invoice_customer)
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visitor.visit_supplier(self.invoice_supplier)
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for payment in self.invoice_payments:
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visitor.visit_payment(payment)
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for invline in self.invoice_lines:
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visitor.visit_invoice_line(invline)
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def _calculate_legal_monetary_total(self):
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for invline in self.invoice_lines:
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self.invoice_legal_monetary_total.line_extension_amount += invline.total_amount
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self.invoice_legal_monetary_total.tax_exclusive_amount += invline.total_tax_exclusive_amount
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#DIAN 1.7.-2020: FAU6
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self.invoice_legal_monetary_total.tax_inclusive_amount += invline.total_tax_inclusive_amount
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#DIAN 1.7.-2020: FAU08
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self.invoice_legal_monetary_total.allowance_total_amount = AmountCollection(self.invoice_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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#DIAN 1.7.-2020: FAU10
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self.invoice_legal_monetary_total.charge_total_amount = AmountCollection(self.invoice_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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#DIAN 1.7.-2020: FAU12
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self.invoice_legal_monetary_total.prepaid_amount = AmountCollection(self.invoice_prepaid_payment)\
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.map(lambda paid: paid.paid_amount)\
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.sum()
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#DIAN 1.7.-2020: FAU14
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self.invoice_legal_monetary_total.payable_amount = \
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self.invoice_legal_monetary_total.tax_inclusive_amount \
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+ self.invoice_legal_monetary_total.allowance_total_amount \
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+ self.invoice_legal_monetary_total.charge_total_amount \
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- self.invoice_legal_monetary_total.prepaid_amount
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def calculate(self):
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for invline in self.invoice_lines:
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invline.calculate()
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self._calculate_legal_monetary_total()
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