fix(Voice*): internally disconnect and cleanup when forcibly disconnected (#3597)

src/client/voice/ClientVoiceManager.js

@@ -30,10 +30,15 @@ class ClientVoiceManager {
 
   onVoiceStateUpdate({ guild_id, session_id, channel_id }) {
     const connection = this.connections.get(guild_id);
-    if (connection) {
-      connection.channel = this.client.channels.get(channel_id);
-      connection.setSessionID(session_id);
+    if (!connection) return;
+    if (!channel_id) {
+      connection._disconnect();
+      this.connections.delete(guild_id);
+      return;
     }
+
+    connection.channel = this.client.channels.get(channel_id);
+    connection.setSessionID(session_id);
   }
 
   /**

src/client/voice/VoiceConnection.js

@@ -312,6 +312,15 @@ class VoiceConnection extends EventEmitter {
     this.sendVoiceStateUpdate({
       channel_id: null,
     });
+
+    this._disconnect();
+  }
+
+  /**
+   * Internally disconnects (doesn't send disconnect packet).
+   * @private
+   */
+  _disconnect() {
     this.player.destroy();
     this.cleanup();
     this.status = Constants.VoiceStatus.DISCONNECTED;
@@ -334,6 +343,7 @@ class VoiceConnection extends EventEmitter {
       ws.removeAllListeners('ready');
       ws.removeAllListeners('sessionDescription');
       ws.removeAllListeners('speaking');
+      ws.shutdown();
     }
 
     if (udp) udp.removeAllListeners('error');

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

@@ -20,7 +20,7 @@ class VoiceStateUpdateHandler extends AbstractHandler {
         // If the member left the voice channel, unset their speaking property
         if (!data.channel_id) member.speaking = null;
 
-        if (member.user.id === client.user.id && data.channel_id) {
+        if (member.user.id === client.user.id) {
           client.emit('self.voiceStateUpdate', data);
         }