#!/usr/bin/env node
/**
 * Build patch-manifest.json for a release (same names as files[].source in launcher.json).
 *
 * Usage (from a folder containing the patch binaries):
 *   node generate-patch-manifest.js v0.9.0-client patch-Z.MPQ Wow-patched.exe
 *
 * Prints JSON to stdout — redirect to file:
 *   node generate-patch-manifest.js v0.9.0-client patch-Z.MPQ Wow-patched.exe > patch-manifest.json
 */
'use strict';

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

const version = process.argv[2];
const names = process.argv.slice(3);
if (!version || names.length === 0) {
  console.error('Usage: generate-patch-manifest.js <version-label> <file1> [file2 ...]');
  console.error('  Example: generate-patch-manifest.js v0.9.0-client patch-Z.MPQ Wow-patched.exe');
  process.exit(1);
}

const out = { version, files: {} };
for (const f of names) {
  const base = path.basename(f);
  const buf = fs.readFileSync(f);
  const sha256 = crypto.createHash('sha256').update(buf).digest('hex');
  out.files[base] = { sha256 };
}
process.stdout.write(`${JSON.stringify(out, null, 2)}\n`);