public function makeInvoice()
{
$invoice = new ifirma\Invoice();
$invoice->{ifirma\Invoice::KEY_KONTRAHENT} = $this->createContractorObject();
$invoice->{ifirma\Invoice::KEY_SPOSOB_ZAPLATY} = $this->getPaymentType();
$invoice->{ifirma\Invoice::KEY_LICZ_OD} = ifirma\Invoice::DEFAULT_VALUE_LICZ_OD;
$invoice->{ifirma\Invoice::KEY_FORMAT_DATY_SPRZEDAZY} = ifirma\Invoice::DEFAULT_VALUE_FORMAT_DATY_SPRZEDAZY;
$invoice->{ifirma\Invoice::KEY_DATA_WYSTAWIENIA} = date('Y-m-d');
$invoice->{ifirma\Invoice::KEY_DATA_SPRZEDAZY} = $this->getOrderDate();
$invoice->{ifirma\Invoice::KEY_ZAPLACONO} = 0;
$invoice->{ifirma\Invoice::KEY_RODZAJ_PODPISU_ODBIORCY} = ifirma\Invoice::DEFAULT_VALUE_RODZAJ_PODPISU_ODBIORCY;
$invoice->{ifirma\Invoice::KEY_UWAGI} = $this->getOrderNumber();
$invoice->{ifirma\Invoice::KEY_WIDOCZNY_NUMER_GIOS} = ifirma\Invoice::DEFAULT_VALUE_WIDOCZNY_NUMER_GIOS;
foreach ($this->getOrder()->getAllVisibleItems() as $item) {
$invoice->addInvoicePosition($this->createInvoicePosition($item));
}
if ($this->isNecessaryToAddShippingPosition()) {
$invoice->addInvoicePosition($this->createInvoicePositionShippingCost());
}
return $invoice;
}
