first attempt at code mostly working
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15
bot/Dockerfile
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15
bot/Dockerfile
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FROM node:20-slim
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# Install ffmpeg for audio processing
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RUN apt-get update && \
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apt-get install -y ffmpeg python3 make g++ && \
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rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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COPY package*.json ./
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RUN npm install
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COPY . .
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CMD ["npm", "start"]
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19
bot/package.json
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19
bot/package.json
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{
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"name": "discord-music-bot",
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"version": "1.0.0",
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"description": "Discord bot for playing local MP3 files",
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"main": "src/index.js",
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"type": "module",
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"scripts": {
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"start": "node src/index.js",
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"dev": "node --watch src/index.js"
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},
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"dependencies": {
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"@discordjs/opus": "^0.9.0",
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"@discordjs/voice": "^0.18.0",
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"discord.js": "^14.16.3",
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"express": "^4.21.2",
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"sodium-native": "^4.3.1",
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"winston": "^3.17.0"
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}
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}
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344
bot/src/index.js
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344
bot/src/index.js
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import { Client, GatewayIntentBits } from 'discord.js';
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import { joinVoiceChannel, createAudioPlayer, createAudioResource, AudioPlayerStatus, VoiceConnectionStatus } from '@discordjs/voice';
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import express from 'express';
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import fs from 'fs';
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import path from 'path';
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import { createLogger, format, transports } from 'winston';
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const logger = createLogger({
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level: process.env.LOG_LEVEL || 'info',
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format: format.combine(
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format.timestamp(),
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format.printf(({ timestamp, level, message }) => `${timestamp} [${level}]: ${message}`)
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),
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transports: [new transports.Console()]
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});
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const DISCORD_BOT_TOKEN = process.env.DISCORD_BOT_TOKEN;
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const DISCORD_GUILD_ID = process.env.DISCORD_GUILD_ID;
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const DISCORD_CHANNEL_ID = process.env.DISCORD_CHANNEL_ID;
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const MUSIC_DIRECTORY = process.env.MUSIC_DIRECTORY || '/music';
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const INTERNAL_PORT = 8080;
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if (!DISCORD_BOT_TOKEN || !DISCORD_GUILD_ID || !DISCORD_CHANNEL_ID) {
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logger.error('Missing required environment variables');
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process.exit(1);
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}
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// State
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let currentState = {
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currentTrack: null,
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state: 'stopped',
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position: 0,
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volume: 100,
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queue: [],
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shuffled: false
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};
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let connection = null;
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let player = null;
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let startTime = 0;
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let currentResource = null;
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// Discord client
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const client = new Client({
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intents: [GatewayIntentBits.Guilds, GatewayIntentBits.GuildVoiceStates]
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});
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// Load all MP3 files from music directory
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function loadMusicLibrary() {
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if (!fs.existsSync(MUSIC_DIRECTORY)) {
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logger.warn(`Music directory not found: ${MUSIC_DIRECTORY}`);
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return [];
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}
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const files = fs.readdirSync(MUSIC_DIRECTORY);
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return files
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.filter(file => file.toLowerCase().endsWith('.mp3'))
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.map(file => ({
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id: file,
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filename: file,
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filepath: path.join(MUSIC_DIRECTORY, file),
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title: file.replace('.mp3', ''),
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artist: 'Unknown',
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album: '',
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duration: 0,
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hasArt: false
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}));
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}
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// Initialize queue with all tracks
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function initializeQueue() {
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const library = loadMusicLibrary();
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currentState.queue = [...library];
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logger.info(`Loaded ${library.length} tracks into queue`);
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}
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// Play next track in queue
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function playNext() {
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if (currentState.queue.length === 0) {
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logger.info('Queue empty, reloading library');
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initializeQueue();
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}
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if (currentState.queue.length === 0) {
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logger.warn('No tracks available to play');
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currentState.state = 'stopped';
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currentState.currentTrack = null;
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return;
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}
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const track = currentState.queue.shift();
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currentState.currentTrack = track;
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currentState.position = 0;
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currentState.state = 'playing';
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startTime = Date.now();
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logger.info(`Now playing: ${track.title}`);
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try {
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currentResource = createAudioResource(track.filepath, {
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inlineVolume: true
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});
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currentResource.volume.setVolume(currentState.volume / 100);
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player.play(currentResource);
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} catch (error) {
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logger.error(`Error playing track: ${error.message}`);
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currentResource = null;
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playNext();
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}
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}
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// Connect to voice channel
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async function connectToVoice() {
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try {
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const guild = await client.guilds.fetch(DISCORD_GUILD_ID);
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const channel = await guild.channels.fetch(DISCORD_CHANNEL_ID);
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if (!channel || channel.type !== 2) {
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throw new Error('Invalid voice channel');
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}
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connection = joinVoiceChannel({
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channelId: channel.id,
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guildId: guild.id,
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adapterCreator: guild.voiceAdapterCreator,
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});
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player = createAudioPlayer();
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player.on(AudioPlayerStatus.Idle, () => {
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logger.info('Track finished, playing next');
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playNext();
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});
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player.on('error', error => {
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logger.error(`Player error: ${error.message}`);
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playNext();
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});
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connection.subscribe(player);
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connection.on(VoiceConnectionStatus.Ready, () => {
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logger.info('Voice connection ready');
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playNext();
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});
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connection.on(VoiceConnectionStatus.Disconnected, async () => {
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logger.warn('Disconnected from voice channel');
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try {
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await Promise.race([
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connection.destroy(),
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new Promise(resolve => setTimeout(resolve, 5000))
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]);
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} catch (error) {
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logger.error('Error during reconnection');
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}
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});
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connection.on('error', error => {
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logger.error(`Voice connection error: ${error.message}`);
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});
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logger.info(`Connected to voice channel: ${channel.name}`);
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} catch (error) {
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logger.error(`Failed to connect to voice: ${error.message}`);
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setTimeout(connectToVoice, 5000);
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}
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}
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// Internal API for control
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const app = express();
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app.use(express.json());
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app.get('/health', (req, res) => {
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res.json({ status: 'ok', connected: connection !== null });
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});
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app.get('/state', (req, res) => {
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const elapsed = currentState.state === 'playing' ? Math.floor((Date.now() - startTime) / 1000) : 0;
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res.json({
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...currentState,
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position: currentState.position + elapsed,
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queueLength: currentState.queue.length
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});
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});
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app.post('/play', (req, res) => {
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if (currentState.state === 'paused' && player) {
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player.unpause();
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currentState.state = 'playing';
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startTime = Date.now() - (currentState.position * 1000);
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logger.info('Resumed playback');
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} else if (currentState.state === 'stopped') {
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playNext();
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}
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res.json({ success: true, state: currentState.state });
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});
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app.post('/pause', (req, res) => {
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if (player && currentState.state === 'playing') {
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player.pause();
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currentState.position += Math.floor((Date.now() - startTime) / 1000);
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currentState.state = 'paused';
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logger.info('Paused playback');
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}
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res.json({ success: true, state: currentState.state });
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});
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app.post('/skip', (req, res) => {
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logger.info('Skipping to next track');
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playNext();
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res.json({ success: true });
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});
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app.post('/volume', (req, res) => {
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const { volume } = req.body;
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if (volume >= 0 && volume <= 100) {
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currentState.volume = volume;
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// Update volume on currently playing resource
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if (currentResource && currentResource.volume) {
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currentResource.volume.setVolume(volume / 100);
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}
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logger.info(`Volume set to ${volume}%`);
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}
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res.json({ success: true, volume: currentState.volume });
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});
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app.post('/reload', (req, res) => {
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logger.info('Reloading music library');
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initializeQueue();
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res.json({ success: true, tracks: currentState.queue.length });
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});
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app.post('/queue/shuffle', (req, res) => {
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currentState.queue.sort(() => Math.random() - 0.5);
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currentState.shuffled = !currentState.shuffled;
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logger.info('Queue shuffled');
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res.json({ success: true, shuffled: currentState.shuffled });
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});
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app.get('/channels', async (req, res) => {
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try {
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const guild = await client.guilds.fetch(DISCORD_GUILD_ID);
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const channels = await guild.channels.fetch();
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const voiceChannels = channels
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.filter(channel => channel.type === 2) // Type 2 is voice channel
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.map(channel => ({
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id: channel.id,
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name: channel.name,
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userCount: channel.members?.size || 0,
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current: connection?.joinConfig?.channelId === channel.id
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}))
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.sort((a, b) => a.name.localeCompare(b.name));
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res.json({ channels: voiceChannels });
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} catch (error) {
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logger.error(`Failed to fetch channels: ${error.message}`);
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res.status(500).json({ error: 'Failed to fetch channels' });
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}
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});
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app.post('/join', async (req, res) => {
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const { channelId } = req.body;
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if (!channelId) {
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return res.status(400).json({ error: 'Channel ID required' });
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}
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try {
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// Destroy existing connection
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if (connection) {
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connection.destroy();
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connection = null;
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}
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const guild = await client.guilds.fetch(DISCORD_GUILD_ID);
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const channel = await guild.channels.fetch(channelId);
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if (!channel || channel.type !== 2) {
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return res.status(400).json({ error: 'Invalid voice channel' });
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}
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connection = joinVoiceChannel({
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channelId: channel.id,
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guildId: guild.id,
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adapterCreator: guild.voiceAdapterCreator,
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});
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if (!player) {
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player = createAudioPlayer();
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player.on(AudioPlayerStatus.Idle, () => {
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logger.info('Track finished, playing next');
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playNext();
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});
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player.on('error', error => {
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logger.error(`Player error: ${error.message}`);
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playNext();
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});
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}
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connection.subscribe(player);
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connection.on(VoiceConnectionStatus.Ready, () => {
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logger.info('Voice connection ready');
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});
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connection.on(VoiceConnectionStatus.Disconnected, async () => {
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logger.warn('Disconnected from voice channel');
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try {
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await Promise.race([
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connection.destroy(),
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new Promise(resolve => setTimeout(resolve, 5000))
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]);
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} catch (error) {
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logger.error('Error during disconnection');
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}
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});
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connection.on('error', error => {
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logger.error(`Voice connection error: ${error.message}`);
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});
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logger.info(`Joined voice channel: ${channel.name}`);
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res.json({ success: true, channelName: channel.name });
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} catch (error) {
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logger.error(`Failed to join channel: ${error.message}`);
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res.status(500).json({ error: 'Failed to join channel' });
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}
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});
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app.listen(INTERNAL_PORT, () => {
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logger.info(`Internal API listening on port ${INTERNAL_PORT}`);
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});
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// Discord client ready
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client.once('clientReady', () => {
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logger.info(`Logged in as ${client.user.tag}`);
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initializeQueue();
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connectToVoice();
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});
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client.login(DISCORD_BOT_TOKEN);
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