change in parameterized replaceable handling

server/db/mongo/kinds/replaceableParameters.go

@@ -12,7 +12,9 @@ import (
 	"golang.org/x/net/websocket"
 )
 
+// HandleParameterizedReplaceableKind handles parameterized replaceable events based on NIP-01 rules
 func HandleParameterizedReplaceableKind(ctx context.Context, evt relay.Event, collection *mongo.Collection, ws *websocket.Conn) error {
+	// Step 1: Find dTag from the event's tags
 	var dTag string
 	for _, tag := range evt.Tags {
 		if len(tag) > 0 && tag[0] == "d" {
@@ -20,20 +22,34 @@ func HandleParameterizedReplaceableKind(ctx context.Context, evt relay.Event, co
 			break
 		}
 	}
+
+	// Step 2: Create filter to find the existing event based on pubkey, kind, and dTag
 	filter := bson.M{"pubkey": evt.PubKey, "kind": evt.Kind, "tags.d": dTag}
+
+	// Step 3: Find the existing event from the database
 	var existingEvent relay.Event
 	err := collection.FindOne(ctx, filter).Decode(&existingEvent)
 	if err != nil && err != mongo.ErrNoDocuments {
 		return fmt.Errorf("error finding existing event: %v", err)
 	}
 
+	// Step 4: Handle event replacement logic (NIP-01 rules)
+	// If we found an existing event and the new event is older, reject the update
 	if err != mongo.ErrNoDocuments {
 		if existingEvent.CreatedAt > evt.CreatedAt || (existingEvent.CreatedAt == evt.CreatedAt && existingEvent.ID < evt.ID) {
-			response.SendOK(ws, evt.ID, false, "blocked: relay already has a newer event for this pubkey and d tag")
+			response.SendOK(ws, evt.ID, false, "blocked: relay already has a newer event for this pubkey and dTag")
 			return nil
 		}
+
+		// Step 5: Delete the older event if the new event is valid
+		_, err := collection.DeleteOne(ctx, bson.M{"_id": existingEvent.ID})
+		if err != nil {
+			return fmt.Errorf("error deleting the older event: %v", err)
+		}
+		fmt.Printf("Deleted older event with ID: %s\n", existingEvent.ID)
 	}
 
+	// Step 6: Upsert the new event (insert if not existing, or update if newer)
 	opts := options.Update().SetUpsert(true)
 	update := bson.M{
 		"$set": evt,