const fs = require('fs');
const xml2js = require('xml2js');
const { Client, Intents } = require('discord.js-selfbot-v13');
const irc = require('irc');

// Load config.xml
let config;
const parser = new xml2js.Parser({ explicitArray: false });

try {
  const xmlData = fs.readFileSync('config.xml', 'utf8');
  parser.parseString(xmlData, (err, result) => {
    if (err) throw err;
    config = result.BridgeConfig;
  });
} catch (e) {
  console.error('Failed to load or parse config.xml:', e);
  process.exit(1);
}

// Extract configuration
const DISCORD_TOKEN = config.Discord.Token;
const DISCORD_CHANNEL_ID = config.Discord.ChannelId;
const IRC_SERVER = config.IRC.Server;
const IRC_PORT = parseInt(config.IRC.Port, 10);
const IRC_CHANNEL = config.IRC.Channel;
const IRC_NICK = config.IRC.Nick;

// Discord client setup
const discordClient = new Client({
  checkUpdate: false,
  intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES]
});

// IRC client setup
const ircClient = new irc.Client(IRC_SERVER, IRC_NICK, {
  channels: [IRC_CHANNEL],
  port: IRC_PORT,
  autoConnect: false
});

// Function to start IRC connection
function startIRC() {
  console.log('Attempting to connect to IRC...');
  ircClient.connect(5, () => {
    console.log(`Connected to IRC server ${IRC_SERVER}`);
  });
}

// Handle IRC connection errors
ircClient.addListener('error', (message) => {
  console.error('IRC error:', message);
});

// Handle IRC messages and forward them to Discord
ircClient.addListener('message', (from, to, message) => {
  console.log(`Received IRC message from ${from}: ${message}`);
  if (from === IRC_NICK) return;

  const ircMessage = `<${from}> ${message}`;
  const discordChannel = discordClient.channels.cache.get(DISCORD_CHANNEL_ID);
  if (discordChannel) {
    discordChannel.send(ircMessage);
  }
});

// Handle Discord messages and forward them to IRC
discordClient.on('messageCreate', message => {
  if (message.author.bot || message.channel.id !== DISCORD_CHANNEL_ID) return;
  if (message.author.id === discordClient.user.id) return;

  const discordMessage = `<${message.author.username}> ${message.content}`;
  console.log(`Forwarding Discord message to IRC: ${discordMessage}`);
  ircClient.say(IRC_CHANNEL, discordMessage);
});

// Handle Discord ready event
discordClient.on('ready', () => {
  console.log(`Logged in as ${discordClient.user.tag}`);
  startIRC();
});

// Login to Discord
discordClient.login(DISCORD_TOKEN).catch(err => {
  console.error('Failed to login to Discord:', err);
});