fix: cleanup streams on disconnection

src/modules/audioStreams.ts

@@ -3,7 +3,8 @@ import {
 	createAudioPlayer,
 	createAudioResource,
 	StreamType,
-	VoiceConnection
+	VoiceConnection,
+	VoiceConnectionStatus
 } from '@discordjs/voice';
 import { AudioMixer } from 'node-audio-mixer';
 import { PassThrough, Readable } from 'stream';
@@ -171,6 +172,16 @@ export class AudioStreamManager {
 		stream = new MixedStream();
 		this.streams.set(conn, stream);
 		conn.subscribe(stream.player);
+
+		conn.on('stateChange', (_, newState) => {
+			if (
+				newState.status === VoiceConnectionStatus.Disconnected ||
+				newState.status === VoiceConnectionStatus.Destroyed
+			) {
+				this.destroyStream(conn);
+			}
+		});
+
 		return stream;
 	}