add wamp UNREGISTERED message

messages/unregistered.go

@@ -0,0 +1,58 @@
+package messages
+
+import "fmt"
+
+const MessageTypeUnRegistered = 67
+const MessageNameUnRegistered = "UNREGISTERED"
+
+var unRegisteredValidationSpec = ValidationSpec{ //nolint:gochecknoglobals
+	MinLength: 2,
+	MaxLength: 2,
+	Message:   MessageNameUnRegistered,
+	Spec: Spec{
+		1: ValidateRequestID,
+	},
+}
+
+type UnRegistered interface {
+	Message
+
+	RequestID() int64
+}
+
+type unRegistered struct {
+	requestID int64
+}
+
+func NewEmptyUnRegistered() UnRegistered {
+	return &unRegistered{}
+}
+
+func NewUnRegistered(requestID int64) UnRegistered {
+	return &unRegistered{
+		requestID: requestID,
+	}
+}
+
+func (r *unRegistered) Type() int {
+	return MessageTypeUnRegistered
+}
+
+func (r *unRegistered) Parse(wampMsg []any) error {
+	fields, err := ValidateMessage(wampMsg, unRegisteredValidationSpec)
+	if err != nil {
+		return fmt.Errorf("unregistered: failed to validate message %s: %w", MessageNameUnRegistered, err)
+	}
+
+	r.requestID = fields.RequestID
+
+	return nil
+}
+
+func (r *unRegistered) Marshal() []any {
+	return []any{MessageTypeUnRegistered, r.requestID}
+}
+
+func (r *unRegistered) RequestID() int64 {
+	return r.requestID
+}