#!/usr/bin/env node
/**
 * Fetch recent messages from a Discord channel.
 * Usage: node scripts/fetch-channel-messages.js <channelId> [limit]
 * Default limit: 10
 */
const path = require('path');
const { Client, GatewayIntentBits } = require('discord.js');

require('dotenv').config({ path: path.join(__dirname, '../.env') });
require('dotenv').config({ path: path.join(__dirname, '../../.env') });

const TOKEN = process.env.MEMBER_BOT_TOKEN || process.env.DISCORD_BOT_TOKEN;
const channelId = process.argv[2];
const limit = Math.min(parseInt(process.argv[3], 10) || 10, 100);

if (!TOKEN || !channelId) {
  console.error('Usage: node scripts/fetch-channel-messages.js <channelId> [limit]');
  process.exit(1);
}

const client = new Client({
  intents: [GatewayIntentBits.Guilds, GatewayIntentBits.GuildMessages],
});

client.once('ready', async () => {
  try {
    const channel = await client.channels.fetch(channelId).catch(() => null);
    if (!channel) {
      console.log('Channel not found or bot cannot access it.');
      process.exit(0);
    }
    const messages = await channel.messages.fetch({ limit });
    console.log('Channel:', channel.name, '(' + channel.id + ')');
    console.log('Messages fetched:', messages.size, '(requested', limit + ')');
    if (messages.size === 0) {
      console.log('No messages visible (empty channel or no Read Message History permission).');
      process.exit(0);
    }
    for (const [, m] of messages.sort((a, b) => b.createdTimestamp - a.createdTimestamp)) {
      const preview = (m.content || '(embed/attachment only)').slice(0, 80);
      console.log('---');
      console.log('ID:', m.id, '| Author:', m.author.tag, '|', m.createdAt.toISOString());
      console.log(preview + (m.content && m.content.length > 80 ? '...' : ''));
    }
  } catch (e) {
    console.error(e.message || e);
  } finally {
    client.destroy();
    process.exit(0);
  }
});

client.login(TOKEN).catch((e) => {
  console.error('Login failed:', e.message);
  process.exit(1);
});