Functioning audio bot

Client/discord-bot/commands/join.js

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+import {joinVoiceChannel} from "@discordjs/voice";
+import {replyToInteraction} from "../utilities/messageHandler.js";
+import {createAudioInstance} from "../controllers/audioController.js";
+import OpusEncoderPkg from "@discordjs/opus";
+
+// Declare the encoder (module is incompatible modern import method)
+const { OpusEncoder } = OpusEncoderPkg;
+const encoder = new OpusEncoder(48000, 2);
+
+/**
+ * Join the specified voice channel
+ *
+ * @param interaction Message interaction from discord
+ */
+export default async function join(interaction){
+    const voiceChannel = interaction.options.getChannel('voicechannel');
+    const voiceConnection = joinVoiceChannel({
+        channelId: voiceChannel.id,
+        guildId: interaction.guildId,
+        adapterCreator: interaction.guild.voiceAdapterCreator,
+        selfMute: false,
+        selfDeaf: false,
+    });
+    replyToInteraction(interaction, `Ok, Joining ${voiceChannel.name}`);
+
+    const audioInstance = createAudioInstance();
+
+    audioInstance.on('data', buffer => {
+        buffer = Buffer.from(buffer);
+        const encoded = encoder.encode(buffer);
+        voiceConnection.playOpusPacket(encoded);
+    })
+
+    audioInstance.start();
+}

Client/discord-bot/commands/leave.js

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+import {getVoiceConnection} from "@discordjs/voice";
+import {replyToInteraction} from "../utilities/messageHandler.js";
+// Debug
+//import debugBuilder from "../utilities/debugBuilder.js";
+//const log = new debugBuilder("bot", "leave");
+
+/**
+ * If in a voice channel for the specified guild, leave
+ *
+ * @param interaction Message interaction from discord
+ */
+export default async function leave(interaction){
+    const guildId = interaction.guild.id;
+    const voiceConnection = getVoiceConnection(guildId);
+    if (!voiceConnection) return replyToInteraction(interaction, "Not in a voice channel.");
+    voiceConnection.destroy();
+    return replyToInteraction(interaction, `Goodbye`);
+}

Client/discord-bot/commands/ping.js

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+// Utilities
+import { replyToInteraction } from '../utilities/messageHandler.js';
+
+export default function ping(interaction) {
+    return replyToInteraction(interaction, "Pong! I have Aids and now you do too!");
+}