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pretix_original/src/pretix/base/services/pricing.py

101 lines
4.5 KiB
Python

#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-2021 rami.io GmbH and contributors
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation in version 3 of the License.
#
# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
# this file, see <https://pretix.eu/about/en/license>.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
# <https://www.gnu.org/licenses/>.
#
from decimal import Decimal
from pretix.base.decimal import round_decimal
from pretix.base.models import (
AbstractPosition, InvoiceAddress, Item, ItemAddOn, ItemVariation, Voucher,
)
from pretix.base.models.event import SubEvent
from pretix.base.models.tax import TAXED_ZERO, TaxedPrice, TaxRule
def get_price(item: Item, variation: ItemVariation = None,
voucher: Voucher = None, custom_price: Decimal = None,
subevent: SubEvent = None, custom_price_is_net: bool = False,
custom_price_is_tax_rate: Decimal=None,
addon_to: AbstractPosition = None, invoice_address: InvoiceAddress = None,
force_custom_price: bool = False, bundled_sum: Decimal = Decimal('0.00'),
max_discount: Decimal = None, tax_rule=None) -> TaxedPrice:
if addon_to:
try:
iao = addon_to.item.addons.get(addon_category_id=item.category_id)
if iao.price_included:
return TAXED_ZERO
except ItemAddOn.DoesNotExist:
pass
price = item.default_price
if subevent and item.pk in subevent.item_price_overrides:
price = subevent.item_price_overrides[item.pk]
if variation is not None:
if variation.default_price is not None:
price = variation.default_price
if subevent and variation.pk in subevent.var_price_overrides:
price = subevent.var_price_overrides[variation.pk]
if voucher:
price = voucher.calculate_price(price, max_discount=max_discount)
if tax_rule is not None:
tax_rule = tax_rule
elif item.tax_rule:
tax_rule = item.tax_rule
else:
tax_rule = TaxRule(
name='',
rate=Decimal('0.00'),
price_includes_tax=True,
eu_reverse_charge=False,
)
if force_custom_price and custom_price is not None and custom_price != "":
if custom_price_is_net:
price = tax_rule.tax(custom_price, base_price_is='net', invoice_address=invoice_address,
subtract_from_gross=bundled_sum)
else:
price = tax_rule.tax(custom_price, base_price_is='gross', invoice_address=invoice_address,
subtract_from_gross=bundled_sum)
elif item.free_price and custom_price is not None and custom_price != "":
if not isinstance(custom_price, Decimal):
custom_price = Decimal(str(custom_price).replace(",", "."))
if custom_price > 100000000:
raise ValueError('price_too_high')
price = tax_rule.tax(price, invoice_address=invoice_address)
if custom_price_is_net:
price = tax_rule.tax(max(custom_price, price.net), base_price_is='net',
invoice_address=invoice_address, subtract_from_gross=bundled_sum)
else:
price = tax_rule.tax(max(custom_price, price.gross), base_price_is='gross', gross_price_is_tax_rate=custom_price_is_tax_rate,
invoice_address=invoice_address, subtract_from_gross=bundled_sum)
else:
price = tax_rule.tax(price, invoice_address=invoice_address, subtract_from_gross=bundled_sum)
price.gross = round_decimal(price.gross, item.event.currency)
price.net = round_decimal(price.net, item.event.currency)
price.tax = price.gross - price.net
return price