feat: handle and forward WEBHOOKS_UPDATE events (#2762)

* src: Handle WEBHOOK_UPDATE events

* Commit rename of 77'
Or adding the letter S

* I missed this

* Properly do this now
Typos everywhere

* Typings

* refactor: remove now unnecessary guild variable

src/client/websocket/packets/WebSocketPacketManager.js

@@ -47,6 +47,7 @@ class WebSocketPacketManager {
     this.register(WSEvents.MESSAGE_REACTION_ADD, require('./handlers/MessageReactionAdd'));
     this.register(WSEvents.MESSAGE_REACTION_REMOVE, require('./handlers/MessageReactionRemove'));
     this.register(WSEvents.MESSAGE_REACTION_REMOVE_ALL, require('./handlers/MessageReactionRemoveAll'));
+    this.register(WSEvents.WEBHOOKS_UPDATE, require('./handlers/WebhooksUpdate'));
   }
 
   get client() {

src/client/websocket/packets/handlers/WebhooksUpdate.js

@@ -0,0 +1,19 @@
+const AbstractHandler = require('./AbstractHandler');
+const { Events } = require('../../../../util/Constants');
+
+class WebhooksUpdate extends AbstractHandler {
+  handle(packet) {
+    const client = this.packetManager.client;
+    const data = packet.d;
+    const channel = client.channels.get(data.channel_id);
+    if (channel) client.emit(Events.WEBHOOKS_UPDATE, channel);
+  }
+}
+
+/**
+ * Emitted whenever a guild text channel has its webhooks changed.
+ * @event Client#webhookUpdate
+ * @param {TextChannel} channel The channel that had a webhook update
+ */
+
+module.exports = WebhooksUpdate;

src/util/Constants.js

@@ -249,6 +249,7 @@ exports.Events = {
   VOICE_BROADCAST_UNSUBSCRIBE: 'unsubscribe',
   TYPING_START: 'typingStart',
   TYPING_STOP: 'typingStop',
+  WEBHOOKS_UPDATE: 'webhookUpdate',
   DISCONNECT: 'disconnect',
   RECONNECTING: 'reconnecting',
   ERROR: 'error',
@@ -290,6 +291,7 @@ exports.Events = {
  * * VOICE_STATE_UPDATE
  * * TYPING_START
  * * VOICE_SERVER_UPDATE
+ * * WEBHOOKS_UPDATE
  * @typedef {string} WSEventType
  */
 exports.WSEvents = keyMirror([
@@ -324,6 +326,7 @@ exports.WSEvents = keyMirror([
   'VOICE_STATE_UPDATE',
   'TYPING_START',
   'VOICE_SERVER_UPDATE',
+  'WEBHOOKS_UPDATE',
 ]);
 
 /**

typings/index.d.ts

@@ -140,7 +140,8 @@ declare module 'discord.js' {
 		public on(event: 'roleUpdate', listener: (oldRole: Role, newRole: Role) => void): this;
 		public on(event: 'typingStart' | 'typingStop', listener: (channel: Channel, user: User) => void): this;
 		public on(event: 'userUpdate', listener: (oldUser: User, newUser: User) => void): this;
-		public once(event: 'voiceStateUpdate', listener: (oldState: VoiceState, newState: VoiceState) => void): this;
+		public on(event: 'voiceStateUpdate', listener: (oldState: VoiceState, newState: VoiceState) => void): this;
+		public on(event: 'webhookUpdate', listener: (channel: TextChannel) => void): this;
 		public on(event: string, listener: Function): this;
 
 		public once(event: 'channelCreate' | 'channelDelete', listener: (channel: Channel) => void): this;
@@ -171,6 +172,7 @@ declare module 'discord.js' {
 		public once(event: 'typingStart' | 'typingStop', listener: (channel: Channel, user: User) => void): this;
 		public once(event: 'userUpdate', listener: (oldUser: User, newUser: User) => void): this;
 		public once(event: 'voiceStateUpdate', listener: (oldState: VoiceState, newState: VoiceState) => void): this;
+		public once(event: 'webhookUpdate', listener: (channel: TextChannel) => void): this;
 		public once(event: string, listener: Function): this;
 	}
 
@@ -1976,7 +1978,8 @@ declare module 'discord.js' {
 		| 'PRESENCE_UPDATE'
 		| 'VOICE_STATE_UPDATE'
 		| 'TYPING_START'
-		| 'VOICE_SERVER_UPDATE';
+		| 'VOICE_SERVER_UPDATE'
+		| 'WEBHOOKS_UPDATE';
 
 //#endregion
 }