#!/usr/bin/env node
// Entfernt Spieler-IP-Adressen aus einem Minecraft-Log, damit es als Test-Fixture versioniert werden kann.
// Aufruf: node tools/anonymize-log.mjs <eingabe> <ausgabe>
import { readFileSync, writeFileSync } from 'node:fs';

const [input, output] = process.argv.slice(2);
if (!input || !output) {
  console.error('usage: node tools/anonymize-log.mjs <in> <out>');
  process.exit(1);
}
const text = readFileSync(input, 'utf8')
  .replace(/\/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+/g, '/0.0.0.0:0')
  .replace(/\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b/g, '0.0.0.0')
  // login positions ("logged in with entity id … at (x, y, z)") would reveal where players build
  .replace(/ at \(-?[\d.]+, -?[\d.]+, -?[\d.]+\)/g, ' at (0.0, 0.0, 0.0)');
writeFileSync(output, text);