Harvest Project Currency Conversion

harvest.js

// ==UserScript==
// @name        Harvest Currency Exchange
// @namespace   Violentmonkey Scripts
// @match       https://*.harvestapp.com/projects/*
// @run-at      document-idle
// @grant       none
// @version     1.0
// @author      -
// @description 3/22/2021, 3:47:59 PM
// ==/UserScript==

// this may not look like it but this is peak performance
const convertUninvoicedAmount = async () => {
  const uninvoicedAmount = document.getElementsByClassName('test-uninvoiced-amount')[0].innerText.match(/\d.+,/g)[0].replace(/\D/g,'');
  const json = await fetch('https://api.exchangeratesapi.io/latest?base=GBP&symbols=EUR').then(response => response.json());
  const exchangeRate = json.rates.EUR;
  console.log("Current GBP -> EUR exchange rate: " + exchangeRate);
  
  const convertedUninvoicedAmount = uninvoicedAmount * exchangeRate;
  const roundedConvertedUninvoicedAmount = convertedUninvoicedAmount.toFixed(2).replace(".", ",");
  console.log(roundedConvertedUninvoicedAmount + " EUR");
  
  document.getElementsByClassName('test-uninvoiced-amount')[0].innerHTML += "€" + roundedConvertedUninvoicedAmount + " EUR";
}

convertUninvoicedAmount().catch(console.error);