const Pop3Command = require("node-pop3");
const fs = require("fs");
const net = require('net');
const { EventEmitter } = require("events");

const imap = require("./imap");

const initalConfig = `{
    "pop3-config": {
        "user": "example",
        "password": "example",
        "host": "pop3.example.com"
    }
}`;

try {
	fs.readFileSync("./config.json");
} catch (e) {
	fs.writeFileSync("./config.json", initalConfig, {
		encoding: "utf-8"
	});
	console.warn("WARNING config.json is empty. This file was been created. Please, configure it.");
	return process.exit();
}

global.config = require("./config.json");

class POP3 extends EventEmitter {
	constructor () {
		super();
		this.pop3cmd = new Pop3Command(global.config["pop3-config"]);
	}
	
	async init () {
		const msg = (
			await pop3.pop3cmd.UIDL()
		).map(async x => {
			x[1] = {
				uid: x[1],
				msg: await pop3.pop3cmd.RETR(+x[0])
			}
			return x;
		});
		this.msg = Object.fromEntries(
			await Promise.all(msg)
		);
	}
}

const pop3 = new POP3();
pop3.init().then(() => {
	let interval = setTimeout(async () => {
		console.log(pop3.msg);
		//const list = await pop3.pop3cmd.UIDL();
		//console.log(list);
		//const str = await pop3.pop3cmd.RETR(1);
		//console.log(str);
	}, 1);
});

imap.listen(
	global.config["imap-config"].port,
	global.config["imap-config"].host,
	(err) => {
		if (err) throw err;
		console.log(`IMAP server running on ${
			global.config["imap-config"].host
		}:${
			global.config["imap-config"].port
		}`);
	}
);