Simplified invoices not supported

facturae.go

@@ -112,6 +112,10 @@ func NewInvoice(env *gobl.Envelope, opts ...Option) (*Document, error) {
  return nil, errors.New("expected an invoice")
  }
 
+ if invoice.Customer == nil {
+ return nil, errors.New("customer required")
+ }
+
  // Make sure we're dealing with raw data
  var err error
  invoice, err = invoice.RemoveIncludedTaxes()
@@ -144,11 +148,16 @@ func NewInvoice(env *gobl.Envelope, opts ...Option) (*Document, error) {
  d.Parties.Seller.LegalEntity = NewLegalEntity(invoice.Supplier)
  }
 
- d.Parties.Buyer.TaxID = NewTaxID(invoice.Customer.TaxID.Code, invoice.Customer.TaxID.Country)
- if d.Parties.Buyer.TaxID.PersonTypeCode == "F" {
- d.Parties.Buyer.Individual = NewIndividual(invoice.Customer)
- } else {
- d.Parties.Buyer.LegalEntity = NewLegalEntity(invoice.Customer)
+ if invoice.Customer != nil && invoice.Customer.TaxID != nil {
+ // Simplified invoices are not supported by FacturaE, but this is where
+ // they'd be handled if the situation changes.
+ b := d.Parties.Buyer
+ b.TaxID = NewTaxID(invoice.Customer.TaxID.Code, invoice.Customer.TaxID.Country)
+ if b.TaxID.PersonTypeCode == "F" {
+ b.Individual = NewIndividual(invoice.Customer)
+ } else {
+ b.LegalEntity = NewLegalEntity(invoice.Customer)
+ }
  }
 
  d.Invoices = &Invoices{

items.go

@@ -91,9 +91,11 @@ func (l *InvoiceLine) addTaxes(total num.Amount, taxes *tax.Total, rates tax.Set
 
  tax := new(Tax)
  tax.Code = categoryTaxCodeMap[ct.Code]
- tax.Rate = rate.Percent.StringWithoutSymbol()
  tax.Base = makeAmount(total)
- tax.Amount = makeAmount(rate.Percent.Of(total))
+ if rate.Percent != nil {
+ tax.Rate = rate.Percent.StringWithoutSymbol()
+ tax.Amount = makeAmount(rate.Percent.Of(total))
+ }
  if rate.Surcharge != nil {
  p := *rate.Surcharge
  p.Amount = p.Amount.Rescale(4)