defer update if there's no component update

library/internal/interaction.ts

@@ -18,6 +18,7 @@ export type ButtonInteraction = {
   channelId: string
   customId: string
   update(options: MessageOptions): Promise<void>
+  deferUpdate(): Promise<void>
 }
 
 export type SelectInteraction = {
@@ -27,4 +28,5 @@ export type SelectInteraction = {
   customId: string
   values: string[]
   update(options: MessageOptions): Promise<void>
+  deferUpdate(): Promise<void>
 }

library/internal/renderer.ts

@@ -4,6 +4,7 @@ import { Container } from "./container.js"
 import type { ComponentInteraction } from "./interaction"
 import type { Message, MessageOptions } from "./message"
 import type { Node } from "./node.js"
+import { Timeout } from "./timeout"
 
 type UpdatePayload =
   | { action: "update" | "deactivate"; options: MessageOptions }
@@ -20,6 +21,10 @@ export abstract class Renderer {
     .pipe(concatMap((payload) => this.updateMessage(payload)))
     .subscribe({ error: console.error })
 
+  private deferUpdateTimeout = new Timeout(500, () => {
+    this.componentInteraction?.deferUpdate().catch(console.error)
+  })
+
   render() {
     if (!this.active) {
       console.warn("Attempted to update a deactivated message")
@@ -47,6 +52,7 @@ export abstract class Renderer {
 
   handleComponentInteraction(interaction: ComponentInteraction) {
     this.componentInteraction = interaction
+    this.deferUpdateTimeout.run()
     for (const node of this.nodes) {
       if (node.handleComponentInteraction(interaction)) {
         return true
@@ -84,6 +90,7 @@ export abstract class Renderer {
     if (this.componentInteraction) {
       const promise = this.componentInteraction.update(payload.options)
       this.componentInteraction = undefined
+      this.deferUpdateTimeout.cancel()
       await promise
       return
     }

library/internal/timeout.ts

@@ -0,0 +1,20 @@
+export class Timeout {
+  private timeoutId?: NodeJS.Timeout
+
+  constructor(
+    private readonly time: number,
+    private readonly callback: () => void,
+  ) {}
+
+  run() {
+    this.cancel()
+    this.timeoutId = setTimeout(this.callback, this.time)
+  }
+
+  cancel() {
+    if (this.timeoutId) {
+      clearTimeout(this.timeoutId)
+      this.timeoutId = undefined
+    }
+  }
+}