feat(sweden): use party validation instead of invoice

Author: BoscoDomingo

regimes/se/invoices.go

@@ -93,6 +93,8 @@ func TestInvoiceValidation(t *testing.T) {
 		require.NoError(t, inv.Validate())
 	})
 
+	// FIX: currently failing since we don't have a way to separate Supplier and Customer
+	// with current implementation.
 	t.Run("missing supplier tax ID", func(t *testing.T) {
 		t.Parallel()
 		inv := testInvoiceStandard(t)

regimes/se/invoices_test.go

@@ -0,0 +1,30 @@
+package se
+
+import (
+	"github.com/invopop/gobl/org"
+	"github.com/invopop/validation"
+)
+
+// validateOrgParty checks the organization party fulfills Swedish requirements.
+func validateOrgParty(value any) error {
+	party, ok := value.(*org.Party)
+	if !ok || party == nil {
+		return nil
+	}
+
+	// TO-DO: Find a way to validate that Suppliers must always include the Tax ID
+
+	return validation.ValidateStruct(party,
+		// Names are always required.
+		validation.Field(&party.Name,
+			validation.Required,
+			validation.Skip,
+		),
+		// Addresses are required, but needn't be Swedish. It could be 2 foreign companies
+		// where the supplier is registered for VAT in Sweden and the operation happens in Sweden.
+		validation.Field(&party.Addresses,
+			validation.Required,
+			validation.Skip,
+		),
+	)
+}

regimes/se/org_parties.go

@@ -2,7 +2,6 @@
 package se
 
 import (
-	"github.com/invopop/gobl/bill"
 	"github.com/invopop/gobl/currency"
 	"github.com/invopop/gobl/i18n"
 	"github.com/invopop/gobl/l10n"
@@ -43,12 +42,12 @@ func New() *tax.RegimeDef {
 // Validate checks the document type and determines if it can be validated.
 func Validate(doc any) error {
 	switch obj := doc.(type) {
-	case *bill.Invoice:
-		return validateInvoice(obj)
 	case *tax.Identity:
 		return validateTaxIdentity(obj)
 	case *org.Identity:
 		return validateOrgIdentity(obj)
+	case *org.Party:
+		return validateOrgParty(obj)
 	}
 	return nil
 }