1 files changed, 70 insertions, 0 deletions
diff --git a/findFilename.go b/findFilename.go
new file mode 100644
index 0000000..d69b538
--- /dev/null
+++ b/findFilename.go
@@ -0,0 +1,70 @@
+package config
+
+import (
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+)
+
+// Gemini AI can help author some pretty good protobuf code.
+// I never remember the syntax for 'reflect' on these things.
+
+// returns "Filename" if it exists in the protobuf
+func GetFilename(pb proto.Message) (string, bool) {
+	// 1. Get the protoreflect.Message interface from the message.
+	// This is the entry point to the reflection API.
+	msg := pb.ProtoReflect()
+
+	// 2. Get the message's descriptor, which contains metadata about its fields.
+	descriptor := msg.Descriptor()
+
+	// 3. Find the specific field descriptor by its protobuf name ("Filename").
+	// Note: The field name must match the name in the .proto file.
+	fieldName := protoreflect.Name("Filename")
+	fieldDescriptor := descriptor.Fields().ByName(fieldName)
+
+	// 4. Check if the field was found. If not, return false.
+	if fieldDescriptor == nil {
+		return "", false
+	}
+
+	// 5. (Optional but recommended) Verify the field is a string type.
+	if fieldDescriptor.Kind() != protoreflect.StringKind {
+		// The field exists but is not a string, so we can't return it as one.
+		return "", false
+	}
+
+	// 6. If the field exists and is a string, get its value.
+	// The value is returned as a protoreflect.Value.
+	value := msg.Get(fieldDescriptor)
+
+	// 7. Convert the protoreflect.Value to a native Go string.
+	return value.String(), true
+}
+
+// sets "Filename" if it exists in the protobuf
+func SetFilename(pb proto.Message, filename string) bool {
+	msg := pb.ProtoReflect() // This is the entry point to the reflection API.
+
+	descriptor := msg.Descriptor() // Get the message's descriptor, which contains metadata about its fields.
+
+	fieldName := protoreflect.Name("Filename")
+	fieldDescriptor := descriptor.Fields().ByName(fieldName)
+
+	if fieldDescriptor == nil {
+		return false
+	}
+
+	if fieldDescriptor.Kind() != protoreflect.StringKind {
+		// The field exists but is not a string, so we can't return it as one.
+		return false
+	}
+
+	valueToSet := protoreflect.ValueOfString(filename)
+
+	// 6. If the field exists and is a string, get its value.
+	// The value is returned as a protoreflect.Value.
+	msg.Set(fieldDescriptor, valueToSet)
+
+	// 7. Convert the protoreflect.Value to a native Go string.
+	return true
+}