1 files changed, 45 insertions, 0 deletions
diff --git a/printDebInfo.go b/printDebInfo.go
index e87a3d2..267b03c 100644
--- a/printDebInfo.go
+++ b/printDebInfo.go
@@ -182,3 +182,48 @@ func main() {
 ")
 }
 */
+
+// func printDebInfoStrings(pb proto.Message, fallback bool) (string, error) {
+func GetDebInfoFields(pb proto.Message) ([]string, error) {
+	var debInfo []string
+	// 1. Get the reflection interface for the top-level message.
+	msg := pb.ProtoReflect()
+	descriptor := msg.Descriptor()
+
+	// 2. Find the FieldDescriptor for the nested "debInfo" message.
+	// Note: Protobuf field names like "deb_info" are often canonicalized
+	// to "debInfo" in Go code, but reflection should use the name from the .proto file.
+	// We'll check for both common variations for robustness.
+
+	debInfoFieldDesc := descriptor.Fields().ByName("debInfo")
+	if debInfoFieldDesc == nil {
+		debInfoFieldDesc = descriptor.Fields().ByName("deb_info")
+	}
+
+	if debInfoFieldDesc == nil {
+		// return controlfile, fmt.Errorf("field 'debInfo' or 'deb_info' not found in message %s", descriptor.FullName())
+		return nil, fmt.Errorf("field 'debInfo' or 'deb_info' not found in message %s", descriptor.FullName())
+	}
+
+	// 3. Get the actual nested message object from the parent.
+	debInfoValue := msg.Get(debInfoFieldDesc)
+	debInfoMsg := debInfoValue.Message()
+
+	// 4. Check if the nested message is valid and has been set.
+	if !debInfoMsg.IsValid() {
+		// fmt.Printf("--- Field '%s' in [%s] is not set. --- \n", debInfoFieldDesc.Name(), descriptor.FullName())
+		return nil, fmt.Errorf("debInfoMsg.InValid()")
+	}
+
+	// 5. Now, iterate over the fields of the nested debInfo message.
+	debInfoDescriptor := debInfoMsg.Descriptor()
+	fields := debInfoDescriptor.Fields()
+
+	for i := 0; i < fields.Len(); i++ {
+		fieldDesc := fields.Get(i)
+		debInfo = append(debInfo, string(fieldDesc.Name()))
+		// debInfo = append(debInfo, fieldDesc.Name())
+	}
+
+	return debInfo, nil
+}