discord_crew/bot.js

189 lines
6.3 KiB
JavaScript

const sodium = require('libsodium-wrappers');
const { Client, GatewayIntentBits } = require('discord.js');
const { joinVoiceChannel, getVoiceConnection, VoiceConnectionStatus, EndBehaviorType } = require('@discordjs/voice');
const fs = require('fs');
const { OpusEncoder } = require('@discordjs/opus');
const { exec } = require('child_process');
const OpenAI = require('openai');
// OpenAI APIキーの確認
const apiKey = process.env.OPENAI_API_KEY || 'your-openai-api-key';
if (!apiKey || apiKey === 'your-openai-api-key') {
console.error('Error: OpenAI API key is missing or invalid. Set the API key in the environment variables.');
process.exit(1); // エラーコード1で終了
}
// OpenAI APIクライアントの作成
const openai = new OpenAI({
apiKey: apiKey,
});
sodium.ready.then(() => {
console.log('Sodium library loaded!');
});
const client = new Client({
intents: [
GatewayIntentBits.Guilds,
GatewayIntentBits.GuildVoiceStates,
GatewayIntentBits.GuildMessages,
GatewayIntentBits.MessageContent,
],
});
client.once('ready', () => {
console.log('Bot is ready!');
});
client.on('messageCreate', async message => {
if (message.content === '!join') {
if (message.member.voice.channel) {
const connection = joinVoiceChannel({
channelId: message.member.voice.channel.id,
guildId: message.guild.id,
adapterCreator: message.guild.voiceAdapterCreator,
selfDeaf: false,
selfMute: false,
});
connection.on(VoiceConnectionStatus.Ready, () => {
console.log('Bot has connected to the channel!');
startRecording(connection, message.member.voice.channel);
});
} else {
message.reply('ボイスチャンネルに接続してください。');
}
}
if (message.content === '!leave') {
const connection = getVoiceConnection(message.guild.id);
if (connection) {
connection.destroy();
message.reply('ボイスチャンネルを離れました。');
} else {
message.reply('ボイスチャンネルに接続していません。');
}
}
});
function startRecording(connection, voiceChannel) {
const receiver = connection.receiver;
const activeStreams = new Map(); // ユーザーごとの音声ストリーム管理
receiver.speaking.on('start', (userId) => {
const user = voiceChannel.members.get(userId);
if (!user) {
console.error('User is undefined');
return;
}
console.log(`Started receiving audio from user: ${user.id}`);
if (activeStreams.has(user.id)) {
return;
}
const audioStream = receiver.subscribe(user.id, {
end: EndBehaviorType.Manual
});
const filePath = `./recordings/${user.id}-${Date.now()}.pcm`;
const writableStream = fs.createWriteStream(filePath);
activeStreams.set(user.id, { audioStream, writableStream, filePath });
const opusDecoder = new OpusEncoder(48000, 2); // Opusデコーダーを使用
audioStream.on('data', (chunk) => {
try {
const pcmData = opusDecoder.decode(chunk);
writableStream.write(pcmData);
console.log(`Received ${chunk.length} bytes of audio data from user ${user.id}`);
} catch (err) {
console.error('Error decoding audio chunk:', err);
}
});
audioStream.on('error', (err) => {
console.error('Error in the audio stream:', err);
});
});
receiver.speaking.on('end', (userId) => {
const streamData = activeStreams.get(userId);
if (!streamData) {
return;
}
const { writableStream, filePath } = streamData;
writableStream.end(() => {
console.log(`Recording saved to ${filePath}`);
activeStreams.delete(userId);
fs.stat(filePath, (err, stats) => {
if (err) {
console.error('Error checking file:', err);
return;
}
if (stats.size > 0) {
convertToWavAndTranscribe(filePath); // バックグラウンドで変換と文字起こしを実行
} else {
console.log(`File ${filePath} is empty, skipping conversion.`);
fs.unlinkSync(filePath); // 空のファイルを削除
}
});
});
});
}
function convertToWavAndTranscribe(pcmPath) {
const wavPath = pcmPath.replace('.pcm', '.wav');
console.log(`Converting ${pcmPath} to ${wavPath} and transcribing in the background`);
const ffmpeg = exec(`ffmpeg -f s16le -ar 48000 -ac 2 -i ${pcmPath} ${wavPath}`, (error, stdout, stderr) => {
if (error) {
console.error(`Error during conversion: ${error.message}`);
return;
}
if (stderr) {
console.error(`FFmpeg stderr: ${stderr}`);
return;
}
});
ffmpeg.on('close', (code) => {
if (code === 0) {
console.log(`Successfully converted ${pcmPath} to ${wavPath}`);
fs.unlinkSync(pcmPath); // PCMファイルを削除
// Whisper APIを使って文字起こしを実行
transcribeAudio(wavPath);
} else {
console.error(`FFmpeg exited with code ${code}, conversion failed.`);
}
});
}
// Whisper APIを使って音声ファイルを文字起こしする関数
async function transcribeAudio(filePath) {
try {
console.log(`Transcribing file: ${filePath}`);
const response = await openai.audio.transcriptions.create({
file: fs.createReadStream(filePath),
model: 'whisper-1',
response_format: 'json' // レスポンス形式をJSONに指定
});
// 文字起こし結果を表示
if (response && response.text) {
console.log('Transcription:', response.text);
} else {
console.error('Error: Transcription response is missing "text" field.');
}
} catch (error) {
console.error('Error during transcription:', error.response ? error.response.data : error.message);
}
}
client.login(process.env.BOT_TOKEN);