transform demandware pricebooks to other currencies for testing multi-currency sites

pricebook-multi-currency-transform.js

var request       = require("request")
var replaceStream = require('replacestream')
var fs            = require('fs')
var path          = require('path')

var originCurrency = "EUR"
var originFile = "eu-prices.xml"
var targetCurrency = "NOK"
var rate = 1

function calc() {
  var value = arguments[1]
  return (value * rate).toFixed(2) + arguments[2]
}

request({
  url: "http://api.fixer.io/latest",
  json: true
}, function (err, res, body) {
  if (!err && res.statusCode === 200) {
    rate = body.rates[targetCurrency]
    fs.createReadStream(path.join(__dirname, originFile))
      .pipe(replaceStream('EUR', 'NOK'))
      .pipe(replaceStream('eu-list-prices', 'no-list-prices'))
      .pipe(replaceStream('eu-sale-prices', 'no-sale-prices'))
      .pipe(replaceStream(/([^>]+)(<\/amount>)/g, calc))
      .pipe(process.stdout)
  }
})