Change filename format?

interactions/commands/add.js

@@ -22,7 +22,7 @@ const execute = async (interaction, db, client) => {
                 const attachment = interaction.options.getAttachment(`attachment${i}`);
                 if (attachment) {
                     const url = attachment.url;
-                    const filename = `${Date.now()}_${attachment.name}`;
+                    const filename = `${user.id}-${i}`;
                     const filepath = path.join(__dirname, '../../storage', filename);
 
                     // Await the download before continuing