/**
 *
 * @author yutent<yutent.io@gmail.com>
 * @date 2022/07/14 11:06:47
 */

const fs = require('fs')
const { parse } = require('path')

/**
 * [stat 返回文件/目录的状态信息]
 * @param  {[string]} path [目标路径]
 */
function stat(path) {
  try {
    return fs.statSync(path)
  } catch (err) {
    return EMPTY_STAT
  }
}

/**
 * [isdir 判断目标是否为目录]
 * @param  {String} path [目标路径]
 */
function isdir(path) {
  try {
    return stat(path).isDirectory()
  } catch (err) {}
}

/**
 * [mkdir 新建目录]
 * @param  {String} dir [目标路径]
 * @param {Number} mode [目录权限, node v10.12起支持]
 */
function mkdir(dir, mode = 0o755) {
  try {
    fs.mkdirSync(dir, { recursive: true, mode: mode })
    return true
  } catch (err) {}
}

//
exports.cat = function (file) {
  try {
    return fs.readFileSync(file)
  } catch (e) {}
}

exports.echo = function (data, file, append) {
  if (!file) {
    return data
  }

  let updir = parse(file).dir
  let opt = {}

  if (!isdir(updir)) {
    mkdir(updir)
  }

  try {
    if (append) {
      fs.appendFileSync(file, data, opt)
    } else {
      fs.writeFileSync(file, data, opt)
    }
  } catch (err) {}
}

exports.isfile = function (path) {
  try {
    return stat(path).isFile()
  } catch (err) {
    return false
  }
}

exports.writable = function (file) {
  try {
    fs.accessSync('/etc/hosts', fs.constants.W_OK)
    return true
  } catch (e) {
    return false
  }
}