rename.js

const fs = require('fs');
const path = require('path');

function joaat(s) {
  const k = s.toLowerCase();
  let h, i;

  for (h = i = 0; i < k.length; i++) {
    h += k.charCodeAt(i);
    h += (h << 10);
    h ^= (h >>> 6);
  }

  h += (h << 3);
  h ^= (h >>> 11);
  h += (h << 15);

  return (h >>> 0);
}

function toHex(n){
  let h = n.toString(16);
  return "0x" + h.toUpperCase();
}

function modulo(a, b) {
  return a - Math.floor(a/b)*b;
}

function ToInteger(x) {
  x = Number(x);
  return x < 0 ? Math.ceil(x) : Math.floor(x);
}

function ToUint32(x) {
  return modulo(ToInteger(x), Math.pow(2, 32));
}

function ToInt32(x) {
  let uint32 = ToUint32(x);

  if (uint32 >= Math.pow(2, 31))
      return uint32 - Math.pow(2, 32)

  return uint32;
}

const directoryPath = 'models';

fs.readdir(directoryPath, (err, files) => {
  if (err) {
    console.log('Unable to scan directory: ' + err);
    return;
  } 

  files.forEach((file) => {
    const extname = path.extname(file);
    const basename = path.basename(file, extname);
    const uint32 = ToUint32(ToUint32(joaat(basename)));
    const int32 = ToInt32(ToUint32(joaat(basename)));
    const hex = toHex(ToUint32(joaat(basename)));
    
    const newFilename = `${uint32}${extname}`;
    const oldPath = path.join(directoryPath, file);
    const newPath = path.join(directoryPath, newFilename);
    fs.rename(oldPath, newPath, (err) => {
      if (err) {
        console.log(`Error renaming file ${oldPath}: ${err}`);
      } else {
        console.log(`File ${file} renamed to ${newFilename}`);
      }
    });
  });
});