// api_v1/scanner/writeJsonAtomic.js
const path = require('path');
const fsp = require('fs/promises');

async function writeJsonAtomic(filePath, data) {
  const tmpPath = `${filePath}.${process.pid}.${Date.now()}.${Math.random()
    .toString(16)
    .slice(2)}.tmp`;

  const json = JSON.stringify(data, null, 2);

  await fsp.mkdir(path.dirname(filePath), { recursive: true });
  await fsp.writeFile(tmpPath, json, 'utf8');
  await fsp.rename(tmpPath, filePath);
}

module.exports = writeJsonAtomic;