// Compute the site's strEnc(data, k1, k2, k3) using the original des.js.
// usage: node script/desenc.js <data> [k1] [k2] [k3]
const fs = require('fs');
const path = require('path');
const vm = require('vm');

const desPath = path.join(__dirname, 'des.js');
const code = fs.readFileSync(desPath, 'utf8');
const ctx = { console };
vm.createContext(ctx);
vm.runInContext(code, ctx);

const [data, k1 = '1', k2 = '2', k3 = '3'] = process.argv.slice(2);
if (data === undefined) {
  console.error('usage: node desenc.js <data> [k1] [k2] [k3]');
  process.exit(2);
}
const out = ctx.strEnc(data, k1, k2, k3);
process.stdout.write(String(out));