import { Client, GatewayIntentBits, Collection } from 'discord.js';
import { registerActiveCommands, unregisterAllCommands } from './modules/registerCommands.mjs'
import { join, dirname } from 'path';
import { readdirSync } from 'fs';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

import dotenv from 'dotenv';
dotenv.config()

/**
 * Add the enabled commands to the bot to be used by users in discord
 * (commands that end in '.mjs' will be enabled, to disable just remove the extension or replace with '.mjs.disabled')
 * @param {any} serverClient
 * @param {any} _commandsPath="./commands"
 * @returns {any}
 */
export const addEnabledCommands = async (serverClient, _commandsPath = "./commands") => {
    // Setup commands for the Discord bot
    serverClient.commands = new Collection();
    const commandsPath = join(__dirname, _commandsPath);
    const commandFiles = readdirSync(commandsPath).filter(file => file.endsWith('.mjs'));

    for (const file of commandFiles) {
        const filePath = await join(commandsPath, file);
        console.log(`Adding enabled command: ${filePath}`);
        await import(`file://${filePath}`).then(command => {
            if (command.data instanceof Promise) {
                command.data.then(async (builder) => {
                    command.data = builder;
                    console.log("Importing command: ", command.data.name, command);
                    // Set a new item in the Collection
                    // With the key as the command name and the value as the exported module
                    serverClient.commands.set(command.data.name, command);
                });
            } else {
                console.log("Importing command: ", command.data.name, command);
                // Set a new item in the Collection
                // With the key as the command name and the value as the exported module
                serverClient.commands.set(command.data.name, command);
            }
        })
    }

    // Register the commands currently in use by the bot
    await registerActiveCommands(serverClient);
}

/**
 * Add the enabled event listeners to the bot
 * (events that end in '.mjs' will be enabled, to disable just remove the extension or replace with '.mjs.disabled')
 * @param {any} serverClient
 * @param {any} _eventsPath="./events"
 * @returns {any}
 */
export function addEnabledEventListeners(serverClient, _eventsPath = "./events") {
    const eventsPath = join(__dirname, _eventsPath);
    const eventFiles = readdirSync(eventsPath).filter(file => file.endsWith('.mjs'));

    for (const file of eventFiles) {
        const filePath = join(eventsPath, file);
        console.log(`Adding enabled event listener: ${filePath}`);
        import(`file://${filePath}`).then(event => {
            console.log("Adding event: ", event);
            if (event.once) {
                serverClient.once(event.name, (...args) => event.execute(serverClient.nodeIo, ...args));
            } else {
                serverClient.on(event.name, (...args) => event.execute(serverClient.nodeIo, ...args));
            }
        })
    }
}

// The discord client
export const serverClient = new Client({ intents: [GatewayIntentBits.Guilds, GatewayIntentBits.GuildVoiceStates] });

// Run when the bot is ready
serverClient.on('ready', async () => {
    console.log(`Logged in as ${serverClient.user.tag}!`);

    // Add and register commands
    await addEnabledCommands(serverClient);

    // Config the discord bot with events
    await addEnabledEventListeners(serverClient);
});

// Startup the discord bot
console.log(`Logging into discord with ID: ${process.env.DISCORD_TOKEN}`);
serverClient.login(process.env.DISCORD_TOKEN);