from collections import defaultdict from decimal import Decimal from django.dispatch import receiver from django.http import HttpRequest from django.urls import resolve, reverse from django.utils.translation import gettext, gettext_lazy as _ from pretix.base.decimal import round_decimal from pretix.base.models import CartPosition, Event, TaxRule from pretix.base.models.orders import OrderFee from pretix.base.settings import settings_hierarkey from pretix.base.signals import order_fee_calculation from pretix.base.templatetags.money import money_filter from pretix.control.signals import nav_event_settings from pretix.presale.signals import ( fee_calculation_for_cart, front_page_top, order_meta_from_request, ) from pretix.presale.views import get_cart from pretix.presale.views.cart import cart_session @receiver(nav_event_settings, dispatch_uid='service_fee_nav_settings') def navbar_settings(sender, request, **kwargs): url = resolve(request.path_info) return [{ 'label': _('Service Fee'), 'url': reverse('plugins:pretix_servicefees:settings', kwargs={ 'event': request.event.slug, 'organizer': request.organizer.slug, }), 'active': url.namespace == 'plugins:pretix_servicefees' and url.url_name.startswith('settings'), }] def get_fees(event, total, invoice_address, mod='', request=None, positions=[], gift_cards=None, payment_requests=None): if request is not None and not positions: positions = get_cart(request) skip_free = event.settings.get('service_fee_skip_free', as_type=bool) if skip_free: positions = [pos for pos in positions if pos.price != Decimal('0.00')] skip_addons = event.settings.get('service_fee_skip_addons', as_type=bool) if skip_addons: positions = [pos for pos in positions if not pos.addon_to_id] skip_non_admission = event.settings.get('service_fee_skip_non_admission', as_type=bool) if skip_non_admission: positions = [pos for pos in positions if pos.item.admission] fee_per_ticket = event.settings.get('service_fee_per_ticket' + mod, as_type=Decimal) if mod and fee_per_ticket is None: fee_per_ticket = event.settings.get('service_fee_per_ticket', as_type=Decimal) fee_abs = event.settings.get('service_fee_abs' + mod, as_type=Decimal) if mod and fee_abs is None: fee_abs = event.settings.get('service_fee_abs', as_type=Decimal) fee_percent = event.settings.get('service_fee_percent' + mod, as_type=Decimal) if mod and fee_percent is None: fee_percent = event.settings.get('service_fee_percent', as_type=Decimal) fee_per_ticket = Decimal("0") if fee_per_ticket is None else fee_per_ticket fee_abs = Decimal("0") if fee_abs is None else fee_abs fee_percent = Decimal("0") if fee_percent is None else fee_percent if event.settings.get('service_fee_skip_if_gift_card', as_type=bool): if payment_requests is not None: for p in payment_requests: if p['provider'] == 'giftcard': total = max(0, total - Decimal(p['max_value'] or '0')) else: # pretix pre 4.15 gift_cards = gift_cards or [] if request: cs = cart_session(request) if cs.get('gift_cards'): gift_cards = event.organizer.accepted_gift_cards.filter(pk__in=cs.get('gift_cards'), currency=event.currency) summed = 0 for gc in gift_cards: fval = Decimal(gc.value) # TODO: don't require an extra query fval = min(fval, total - summed) if fval > 0: total -= fval summed += fval # This hack allows any payment provider to declare a setting service_fee_skip_if_{pprovname} in order to implement # the skipping of service fees when they are paid in their entirety through said payment provider/method. # It is notably used by the KulturPass, which is for all intents and purposes a giftcard but handled like a regular # payment provider. if payment_requests is not None: for p in payment_requests: if event.settings.get(f'service_fee_skip_if_{p["provider"]}', default=False, as_type=bool): total = max(0, total - Decimal(p['max_value'] or '0')) if (fee_per_ticket or fee_abs or fee_percent) and total != Decimal('0.00'): tax_rule_zero = TaxRule.zero() fee = round_decimal(fee_abs + total * (fee_percent / 100) + len(positions) * fee_per_ticket, event.currency) split_taxes = event.settings.get('service_fee_split_taxes', as_type=bool) if split_taxes: # split taxes based on products ordered d = defaultdict(lambda: Decimal('0.00')) for p in positions: if isinstance(p, CartPosition): tr = p.item.tax_rule else: tr = p.tax_rule d[tr] += p.price - p.tax_value base_values = sorted([tuple(t) for t in d.items()], key=lambda t: t[0].rate) sum_base = sum(t[1] for t in base_values) if sum_base: fee_values = [(t[0], round_decimal(fee * t[1] / sum_base, event.currency)) for t in base_values] sum_fee = sum(t[1] for t in fee_values) # If there are rounding differences, we fix them up, but always leaning to the benefit of the tax # authorities if sum_fee > fee: fee_values[0] = (fee_values[0][0], fee_values[0][1] + (fee - sum_fee)) elif sum_fee < fee: fee_values[-1] = (fee_values[-1][0], fee_values[-1][1] + (fee - sum_fee)) else: fee_values = [(event.settings.tax_rate_default or tax_rule_zero, fee)] else: fee_values = [(event.settings.tax_rate_default or tax_rule_zero, fee)] fees = [] for tax_rule, price in fee_values: tax_rule = tax_rule or tax_rule_zero tax = tax_rule.tax(price, invoice_address=invoice_address, base_price_is='gross') fees.append(OrderFee( fee_type=OrderFee.FEE_TYPE_SERVICE, internal_type='', value=price, tax_rate=tax.rate, tax_value=tax.tax, tax_rule=tax_rule )) return fees return [] @receiver(fee_calculation_for_cart, dispatch_uid="service_fee_calc_cart") def cart_fee(sender: Event, request: HttpRequest, invoice_address, total, **kwargs): mod = '' try: from pretix_resellers.utils import ( ResellerException, get_reseller_and_user, ) except ImportError: pass else: try: reseller, user = get_reseller_and_user(request) config = reseller.configs.get(organizer_id=sender.organizer_id) if config.skip_default_service_fees: return [] except ResellerException: pass else: mod = '_resellers' return get_fees(sender, total, invoice_address, mod, request, payment_requests=kwargs.get('payment_requests')) @receiver(order_fee_calculation, dispatch_uid="service_fee_calc_order") def order_fee(sender: Event, positions, invoice_address, total, meta_info, gift_cards, **kwargs): mod = '' if meta_info.get('servicefees_reseller_id'): mod = '_resellers' try: from pretix_resellers.models import Reseller except ImportError: pass else: r = Reseller.objects.get(pk=meta_info.get('servicefees_reseller_id')) config = r.configs.get(organizer_id=sender.organizer_id) if config.skip_default_service_fees: return [] return get_fees(sender, total, invoice_address, mod, positions=positions, gift_cards=gift_cards, payment_requests=kwargs.get('payment_requests')) @receiver(front_page_top, dispatch_uid="service_fee_front_page_top") def front_page_top_recv(sender: Event, **kwargs): fees = [] fee_per_ticket = sender.settings.get('service_fee_per_ticket', as_type=Decimal) if fee_per_ticket: fees = fees + ["{} {}".format(money_filter(fee_per_ticket, sender.currency), gettext('per ticket'))] fee_abs = sender.settings.get('service_fee_abs', as_type=Decimal) if fee_abs: fees = fees + ["{} {}".format(money_filter(fee_abs, sender.currency), gettext('per order'))] fee_percent = sender.settings.get('service_fee_percent', as_type=Decimal) if fee_percent: fees = fees + ['{} % {}'.format(fee_percent, gettext('per order'))] if fee_per_ticket or fee_abs or fee_percent: return '

%s

' % gettext('A service fee of {} will be added to the order total.').format( ' {} '.format(gettext('plus')).join(fees) ) @receiver(order_meta_from_request, dispatch_uid="servicefees_order_meta") def order_meta_signal(sender: Event, request: HttpRequest, **kwargs): meta = {} try: from pretix_resellers.utils import ( ResellerException, get_reseller_and_user, ) except ImportError: pass else: try: reseller, user = get_reseller_and_user(request) meta['servicefees_reseller_id'] = reseller.pk except ResellerException: pass return meta settings_hierarkey.add_default('service_fee_skip_addons', 'True', bool) settings_hierarkey.add_default('service_fee_skip_free', 'True', bool)