const { existsSync, mkdirSync } = require("fs");
const { resolve } = require('path');
const fs = require('fs').promises;

// https://stackoverflow.com/questions/5827612/node-js-fs-readdir-recursive-directory-search
async function getFiles(dir) {
  const dirents = await fs.readdir(dir, { withFileTypes: true });
  const files = await Promise.all(dirents.map((dirent) => {
    const res = resolve(dir, dirent.name);
    return dirent.isDirectory() ? getFiles(res) : res;
  }));
  return Array.prototype.concat(...files);
}

function createIfNotExists(dir) {
  if(!existsSync(dir)) {
    mkdirSync(dir, { recursive: true })    
  }
}

module.exports = {
	getFiles,
  createIfNotExists
}