import readline from "readline";

const user = process.argv[2];

// Estensioni foto/video
const photoExt = [".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp", ".tiff", ".heic", ".heif"];
const videoExt = [".mp4", ".mov", ".avi", ".mkv", ".webm", ".m4v"];

function isMediaFile(filename) {
    const lower = filename.toLowerCase();
    return photoExt.some(ext => lower.endsWith(ext)) ||
           videoExt.some(ext => lower.endsWith(ext));
}

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

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

rl.on("line", line => {
    const parts = line.trim().split(/\s+/);

    const path = parts[0];
    const action = parts[1];
    const file = parts[2];

    if (!file) return;

    const isDir = action.includes("ISDIR");

    // 🔥 Se è directory → NON controllare mediafile
    if (!isDir && !isMediaFile(file)) {
        console.log(`Ignorato (non media): ${file}`);
        return;
    }

    let type = null;

    //
    // 🔵 DIRECTORY EVENTS
    //

    // ADD_DIR → MOVED_TO,ISDIR
    if (action === "MOVED_TO,ISDIR") {
        type = "ADD_DIR";
    }

    // DEL_DIR → MOVED_FROM,ISDIR
    else if (action === "MOVED_FROM,ISDIR") {
        type = "DEL_DIR";
    }

    //
    // 🔵 FILE EVENTS
    //

    // ADD → CLOSE_WRITE o CLOSE_WRITE,CLOSE
    else if (/^CLOSE_WRITE(,CLOSE)?$/.test(action)) {
        type = "ADD";
    }

    // ADD → MOVED_TO
    else if (action === "MOVED_TO") {
        type = "ADD";
    }

    // DEL → MOVED_FROM
    else if (action === "MOVED_FROM") {
        type = "DEL";
    }

    // DEL → DELETE
    else if (action === "DELETE") {
        type = "DEL";
    }

    else {
        return;
    }

    console.log(`${type} ${file} ${path} ${user}`);
});