def test_sum_values_without_including_rounding_error():
total = sum([Value(7.8, 7), Value(0.97, 7)])
assert total.vat == 0.62
assert total.brutto == 9.39
total = Value(20.75, 7)
assert total.brutto == 22.2
assert total.vat == 1.45
def local_platform_owner_platform_fee(self) -> Value:
total_platform_fees = Decimal(str(self.total_platform_fees.netto))
local_platform_fee_share = total_platform_fees * (
Decimal("1") - self.setting.central_share / Decimal("100"))
local_platform_fee_share = local_platform_fee_share.quantize(
Decimal(".01"), "ROUND_HALF_UP")
return Value(local_platform_fee_share, self.setting.platform_fee_vat)
def central_logistic_delivery_fee(self) -> Value:
value = self.transport_insurance
return Value(
value.quantize(Decimal(".01"), "ROUND_HALF_UP"),
self.setting.mc_swiss_delivery_fee_vat,
)
def calculate_gross_value_of_items(calc_items):
items_values = [item.value for item in calc_items]
items_values = sorted(items_values, key=lambda item: item.vat_rate)
gross = Decimal("0")
for vat_rate, lines_by_vat_rate in itertools.groupby(
items_values, lambda item_value: item_value.vat_rate):
sum_net_value = sum(value.netto for value in lines_by_vat_rate)
total_value = Value(sum_net_value, vat_rate)
gross += Decimal(str(total_value.brutto))
return gross
def _vat_breakdown(self, obj):
items_values = []
for cart_item in obj.cart_items:
items_values.append(cart_item.price)
items_values.append(cart_item._delivery_fee())
items_values.append(cart_item.buyer_platform_fee)
items_values.append(cart_item.container_deposit)
items_values = sorted(items_values, key=lambda item: item.vat_rate)
vat_mounts_by_rates = {}
for vat_rate, items_for_vat_rate in itertools.groupby(
items_values, lambda item: item.vat_rate):
sum_net_value = sum(value.netto for value in items_for_vat_rate)
total_value = Value(sum_net_value, vat_rate)
vat_mounts_by_rates[float(vat_rate)] = total_value.vat
total_vat_amount = sum(list(vat_mounts_by_rates.values()))
total_vat_amount = round_float(total_vat_amount)
return vat_mounts_by_rates, total_vat_amount
def sum_of_seller_platform_fees(self) -> Value:
sum_of_seller_fees = sum(
seller_fee for seller_fee in self.seller_platform_fees.values())
return Value(sum_of_seller_fees, self.setting.platform_fee_vat)
def buyer_platform_fee(self) -> Value:
value = (Decimal(str(self.price.netto)) *
self.buyer.buyer_platform_fee_rate / Decimal("100"))
platform_fee = value.quantize(Decimal(".01"), "ROUND_HALF_UP")
return Value(float(platform_fee), self.setting.platform_fee_vat)
def price(self):
return Value(self.quantity * self.product_price * self.amount,
self.product_vat)
def container_deposit(self) -> Value:
return Value(self.container_deposit_net, self.setting.deposit_vat)
def _delivery_fee(self) -> Value:
if self.is_central_logistic_delivery:
return self.central_logistic_delivery_fee
elif self.is_seller_delivery:
return self.seller_delivery_fee
return Value(0)
def seller_delivery_fee(self) -> Value:
return Value(
self.product_delivery_charge,
self.setting.mc_swiss_delivery_fee_vat,
)
def value(self):
return Value(
Decimal(self.price) * Decimal(self.count) *
Decimal(self.amount), # endPrice - front
Decimal(self.vat),
)
def get_price_value(line):
return Value(
Decimal(line["price"]) * Decimal(line["count"]) *
Decimal(line.get("amount", 1)),
Decimal(line["vat_rate"]),
)