Nest Thermostat: Win the temperature wars

nest.js

// Sick of another person always changing the temperature?
// This will set your desired temperature every few seconds :)

// 1. Go to https://home.nest.com
// 2. Login
// 3. Pull up thermostat page
// 4. Open console (cmd + alt + J)
// 5. Paste this in, set wantTemp to whatever you want

function setTemp(want) {
  if (typeof want !== 'number') { throw Error('want must be a number'); }
  var curr = document.querySelector('[data-test=thermozilla-controller-content-temperature-high]').innerText;
  var elUp = document.querySelector('[data-test=thermozilla-controller-controls-increment-button]');
  var elDown = document.querySelector('[data-test=thermozilla-controller-controls-decrement-button]');
  var temp = Number(curr);
  if (temp < want && elUp) {
    elUp.click();
    console.log('went up');
  }
  if (temp > want && elDown) {
    elDown.click();
    console.log('went down');
  }

  var newTemp = Number(document.querySelector('[data-test=thermozilla-controller-content-temperature-high]').innerText);
  if (newTemp !== want) {
    // recurse
    setTemp(want);
  }
};

var wantTemp = 70; // set this
setInterval(function() {
  setTemp(wantTemp);
}, 10e3);