feat: user service

user/internal/adapters/local/declared_country_changed_publisher.go

@@ -0,0 +1,29 @@
+package local
+
+import (
+	"context"
+	"fmt"
+
+	"galaxy/user/internal/ports"
+)
+
+// NoopDeclaredCountryChangedPublisher validates and discards auxiliary
+// declared-country change events.
+type NoopDeclaredCountryChangedPublisher struct{}
+
+// PublishDeclaredCountryChanged validates event and discards it.
+func (NoopDeclaredCountryChangedPublisher) PublishDeclaredCountryChanged(
+	ctx context.Context,
+	event ports.DeclaredCountryChangedEvent,
+) error {
+	if ctx == nil {
+		return fmt.Errorf("publish declared-country changed event: nil context")
+	}
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+
+	return event.Validate()
+}
+
+var _ ports.DeclaredCountryChangedPublisher = NoopDeclaredCountryChangedPublisher{}