import fs from "fs";
import readline from "readline";

const user = process.argv[2];
const LOCK_FILE = `./${user}.scan`;
const DELAY = 10000;

let lastEventTime = 0;
let timer = null;

console.log(`Node attivo per utente: ${user}`);

function handleQuietPeriod() {
    const now = Date.now();
    if (now - lastEventTime < DELAY) return;

    if (fs.existsSync(LOCK_FILE)) {
        console.log(`Lock ${LOCK_FILE} presente, attendo...`);
        timer = setTimeout(handleQuietPeriod, DELAY);
        return;
    }

    console.log(`modificato ${user} (nessuna attività per 10 secondi)`);
    fs.writeFileSync(LOCK_FILE, "lock");
}

const rl = readline.createInterface({
    input: process.stdin,
    crlfDelay: Infinity
});

rl.on("line", line => {
    console.log("Evento:", line);

    lastEventTime = Date.now();

    if (timer) clearTimeout(timer);
    timer = setTimeout(handleQuietPeriod, DELAY);
});