import { createRequire } from 'module';
const require = createRequire(import.meta.url);

import Eris from 'eris';
import Logger, { levels } from './logger.js';
import CommandParser, { Command } from './parser.js';
import { filename, dirname } from './utils.js';
import path from 'path';
import fs from 'fs';

const cfg = require('./config.json');
const dir = dirname(import.meta.url);

const bot = new Eris(cfg.token);

global.ctx = {
	bot: bot,
	log_level: levels[cfg.log_level.toUpperCase()] || levels.WARN,
	whitelist: cfg.user_whitelist || [],
	set_ctx: (key, value) => {
		global.ctx[key] = value;
	},
};
const log = new Logger(filename(import.meta.url), global.ctx.log_level);
const parse = new CommandParser(global.ctx);

const checkGuild = (guild) => {
	if (!cfg.whitelist.includes(guild.id)) {
		log.info(`Leaving guild not on whitelist: ${guild.name}`);
		guild.leave();
	}
};

bot.on('ready', () => {
	log.info('ready recieved.');
	bot.guilds.forEach((guild) => checkGuild(guild));
});

bot.on('guildAvaliable', (guild) => checkGuild(guild));

bot.on('messageCreate', (msg) => parse.parseMsg(msg, global.ctx));

bot.on('error', (err) => log.error(err.toString()));

bot.connect();

async function load_commands() {
	for (let file of files) {
		let p = path.join(cmd_dir, file);
		log.debug(p);
		let obj;
		try {
			obj = await import('file:////' + p);
		} catch (e) {
			log.warn(`loading file ${file}, ran into issue: ${e.message}`);
			continue;
		}
		if (obj.default != undefined) {
			if (obj.default.constructor.name == 'CommandInitializer') {
				obj.default.initialize(global.ctx);
				let cmds = obj.default.getCommands();
				if (parse.isCmd(cmds)) {
					parse.addCommand(cmds);
				} else if (cmds.constructor.name == 'Array') {
					for (let cmd of cmds) {
						parse.addCommand(cmd);
					}
				}
			}
		} else {
			log.warn('module ' + file + ' returned an undefined module.');
		}
	}
}

let cmd_dir = path.join(dir, 'cmd');
log.debug(dir);
let files = fs.readdirSync(cmd_dir);
load_commands();