const { execFileSync } = require('node:child_process');
const fs = require('node:fs');
const path = require('node:path');

function walk(dir, out = []) {
  for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
    const full = path.join(dir, entry.name);
    if (entry.isDirectory()) walk(full, out);
    else out.push(full);
  }
  return out;
}

function isMachO(file) {
  try {
    const out = execFileSync('file', ['-b', file], { encoding: 'utf8' });
    return out.includes('Mach-O');
  } catch {
    return false;
  }
}

exports.default = async function afterPack(context) {
  if (context.electronPlatformName !== 'darwin') return;

  const appOutDir = context.appOutDir;
  const appName = `${context.packager.appInfo.productFilename}.app`;
  const appPath = path.join(appOutDir, appName);

  const targets = walk(appPath).filter(isMachO);

  for (const file of targets) {
    try {
      execFileSync('strip', ['-x', file], { stdio: 'inherit' });
    } catch (err) {
      console.warn(`[strip] skipped ${file}: ${err.message}`);
    }
  }
};