'use strict'

const fs = require('graceful-fs')
const path = require('path')
const invalidWin32Path = require('./win32').invalidWin32Path

const o777 = parseInt('0777', 8)

function mkdirsSync (p, opts, made) {
  if (!opts || typeof opts !== 'object') {
    opts = { mode: opts }
  }

  let mode = opts.mode
  const xfs = opts.fs || fs

  if (process.platform === 'win32' && invalidWin32Path(p)) {
    const errInval = new Error(p + ' contains invalid WIN32 path characters.')
    errInval.code = 'EINVAL'
    throw errInval
  }

  if (mode === undefined) {
    mode = o777 & (~process.umask())
  }
  if (!made) made = null

  p = path.resolve(p)

  try {
    xfs.mkdirSync(p, mode)
    made = made || p
  } catch (err0) {
    if (err0.code === 'ENOENT') {
      if (path.dirname(p) === p) throw err0
      made = mkdirsSync(path.dirname(p), opts, made)
      mkdirsSync(p, opts, made)
    } else {
      // In the case of any other error, just see if there's a dir there
      // already. If so, then hooray!  If not, then something is borked.
      let stat
      try {
        stat = xfs.statSync(p)
      } catch (err1) {
        throw err0
      }
      if (!stat.isDirectory()) throw err0
    }
  }

  return made
}

module.exports = mkdirsSync