const fs = require('node:fs');
const path = require('node:path');
const { Client, Collection, Events, GatewayIntentBits } = require('discord.js');
const { token } = require('./config.json');

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

client.cooldowns = new Collection();
client.commands = new Collection();
const foldersPath = path.join(__dirname, 'commands');
const commandFolders = fs.readdirSync(foldersPath);

for (const folder of commandFolders) {
    const commandsPath = path.join(foldersPath, folder);
    const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));
    for (const file of commandFiles) {
        const filePath = path.join(commandsPath, file);
        const command = require(filePath);
        if ('data' in command && 'execute' in command) {
            client.commands.set(command.data.name, command);
        } else {
            console.log(`[WARNING] The command at ${filePath} is missing a required "data" or "execute" property.`);
        }
    }
}

client.once(Events.ClientReady, c => {
    console.log(`Ready! Logged in as ${c.user.tag}`);
});

client.on(Events.InteractionCreate, async interaction => {
    if (!interaction.isChatInputCommand()) return;
    const command = client.commands.get(interaction.commandName);

    if (!command) {
        console.error(`No command matching ${interaction.commandName} was found.`);
        return;
    }

    const { cooldowns } = interaction.client;

    if (!cooldowns.has(command.data.name)) {
        cooldowns.set(command.data.name, new Collection());
    }

    const now = Date.now();
    const timestamps = cooldowns.get(command.data.name);
    const defaultCooldownDuration = 3;
    const cooldownAmount = (command.cooldown ?? defaultCooldownDuration) * 1000;

    if (timestamps.has(interaction.user.id)) {
        const expirationTime = timestamps.get(interaction.user.id) + cooldownAmount;

        if (now < expirationTime) {
            const expiredTimestamp = Math.round(expirationTime / 1000);
            return interaction.reply({ content: `Please wait, you are on a cooldown for \`${command.data.name}\`. You can use it again <t:${expiredTimestamp}:R>.`, ephemeral: true });
        }
    }

    timestamps.set(interaction.user.id, now);
    setTimeout(() => timestamps.delete(interaction.user.id), cooldownAmount);

    try {
        await command.execute(interaction);
    } catch (error) {
        console.error(error);
        if (interaction.replied || interaction.deferred) {
            await interaction.followUp({ content: 'There was an error while executing this command!', ephemeral: true });
        } else {
            await interaction.reply({ content: 'There was an error while executing this command!', ephemeral: true });
        }
    }
});

client.login(token);