bot.js

const fs = require('fs');
const Discord = require('discord.js');
const clc = require('cli-color');

// Copy template (*-.json) files if needed
for (const name of [ 'config', 'access', 'interactions' ]) {
    if (!fs.existsSync(`${name}.json`) && fs.existsSync(`${name}-.json`))
        fs.copyFileSync(`${name}-.json`, `${name}.json`);
}
if (!fs.existsSync('./interactions')) fs.mkdirSync('./interactions');

const config = require('./config.json');

const bot = new Discord.Client({
    intents: [
        Discord.GatewayIntentBits.Guilds,
        Discord.GatewayIntentBits.GuildMessages,
        Discord.GatewayIntentBits.DirectMessages,
        Discord.GatewayIntentBits.MessageContent
    ],
    partials: [
        Discord.Partials.User,
        Discord.Partials.Channel,
        Discord.Partials.Message
    ]
});

const updateStatus = () => {
    bot.user.setActivity({
        name: config.bot.status.text,
        type: Discord.ActivityType[config.bot.status.type]
    });
};

bot.on(Discord.Events.ClientReady, () => {
    console.log(`Logged in as ${bot.user.tag}`);
    const inviteUrl = `https://discord.com/api/oauth2/authorize?client_id=${bot.user.id}&permissions=2048&scope=bot`;
    console.log(`Invite URL:`, clc.blueBright(inviteUrl));
    updateStatus();
    setInterval(updateStatus, 60*1000);
});

bot.on(Discord.Events.MessageCreate, require('./messageHandler'));

bot.on(Discord.Events.InteractionCreate, require('./interactionHandler'));

bot.login(config.credentials.discord_bot_token);

// Periodically purge old interactions
setInterval(() => {
    const interactions = JSON.parse(fs.readFileSync('./interactions.json', 'utf8'));
    const now = Date.now();
    for (const id in interactions.msg_to_file) {
        const filePath = interactions.msg_to_file[id];
        let deleted = false;
        if (!fs.existsSync(filePath)) {
            delete interactions.msg_to_file[id];
            deleted = true;
        } else {
            const stats = fs.statSync(filePath);
            const age = now - stats.mtimeMs;
            const maxAge = config.bot.interaction_max_age_hours * 60 * 60 * 1000;
            if (age > maxAge) {
                fs.unlinkSync(filePath);
                delete interactions.msg_to_file[id];
                deleted = true;
            }
        }
        if (deleted) {
            console.log(`Purged interaction associated with message ${id}`);
        }
    }
    fs.writeFileSync('./interactions.json', JSON.stringify(interactions, null, 2));
}, 60*1000);

module.exports = bot;