gluon spacex road closure watch

spacex.js

(function() {
  setup()
  return {
    name: "spacex"
  }
})

var closurecount = 1
var alert_channel = "#zrobo"

function setup() {
}

function go(msg) {
  if (msg.method == "clocktower") {
    var time = new Date(Date.parse(msg.params.time))
    if (time.getMinutes() == 0) {
      var dates = scrape()
      if (dates.length != closurecount) {
        bot.say(alert_channel, "spacex road closure count changed from "+closurecount+" to "+dates.length+". use !spacex")
        closurecount = dates.length
      }
    }
  }
  
  if(msg.method == "irc.privmsg") {
    var cmd = /^\!spacex(\s+(.+))?$/
    var match = cmd.exec(msg.params.message)
    if(match){
      var dates = scrape().map(datewords)
      bot.say(msg.params.channel, "spacex " + dates.join(', '))
    }
  }
}

function datewords(date) {
  return date[1] + " " + date[2] + " " + date[3]
}

function scrape() {
  var url = "https://www.cameroncounty.us/spacex/"
  var html = http.get(url).replace(/\n/g,"").replace(/\r/g,"")
  var body = /<tbody>(.*)<\/tbody>/.exec(html)
  var rows = body[1].split("</tr>").map(function(t){return t.replace(/<tr>/,"")})
  return rows.reduce(function(memo, hrow){
    var s = rowsplit(hrow)
    if(s.length > 0) { memo.push(s) }
    return memo
  }, [])
}

function rowsplit(data) {
  var data = data.replace(/<\/?span[^>]*>/g,"")
  var data = data.replace(/<td[^>]*>/g,"")
  var data = data.replace(/<\/td[^>]*>/g,"__")
  var data = data.replace(/<br[^>]*\/>/g,"__")
  var parts = data.split('__')
  return parts.reduce(function(m,p){
    if (p.length > 0) { m.push(p) }
    return m
  },[])
}

/*
<tbody>
<tr>
<td><span style="color: #000000;">Primary Date</span></td>
<td style="text-align: center;"><span style="color: #000000;">Friday, May 21, 2021 </span></td>
<td style="text-align: center;"><span style="color: #000000;">9:30 a.m. to 12:00 p.m. </span></td>
<td style="text-align: center;"><span style="color: #000000;">Beach Open, Intermittent Road Closure<br />
</span></td>
</tr>
*/