neuronbot trimet

trimet.js

function(payload) {
  var override = false
  
  if(payload.type == "emessage") {
    var match =  payload.message.match(/^trimet ([1-9a-z]+)/)
    if (match){
      var url = 'http://developer.trimet.org/ws/V1/arrivals?locIDs='+match[1]+'&appID='+db.get('trimet:key')
      var xml = http.get(url)
      var msg = xmlparse(xml)
      return "StopID "+match[1]+" #"+msg
    }
  }
  
  function xmlparse(xml) {
    var arrival = xml.match(/<arrival ([^>]+)>/m)[1]
    var fullSign = arrival.match(/fullSign=\"([^"]+)\"/)[1]
    var estimated = arrival.match(/estimated=\"([^"]+)\"/)
    if(estimated) {
      fullSign = fullSign + '. '+new Date(parseInt(estimated[1]))
    } else {
      fullSign = fullSign + '. No next-arrival estimate currently available.'
    }
    return fullSign
  }
}