Figure out how long it takes to get to a set of airports from a "home" location.

ietf_flying_times.js

#!/usr/bin/env node

var argv = require('optimist').argv
var http = require('http');
var $ = require('jquery');


var ietf_airports = {

  IETF_airports: [
    "TXL",
    "YVR",
    "LHR",
    "YYZ",
    "HNL",
    "DFW",
    "PRG",
    "NRT"
  ],

  run: function (home_airport) {
    for (airport_num in this.IETF_airports) {
      var destination_airport = this.IETF_airports[airport_num];
      if (home_airport != destination_airport) {
        this.flying_time(home_airport, destination_airport, this.add_up)        
      } else {
        this.add_up(0);
      }
    }    
  },

  flying_time: function (from, to, callback) {
    var html = '';
    var options = {
      hostname: 'www.rome2rio.com',
      port: 80,
      path: '/s/' + from + '/' + to,
      method: 'GET',
      headers: {
        'User-Agent': "Mozilla/5.0 (Windows NT 5.1; rv:13.0) Gecko/20100101 Firefox/13.0.1"
      }
    };
    http.get(options, function(res) {
        res.on('data', function(data) {
            // collect the data chunks to the variable named "html"
            html += data;
        }).on('end', function() {
            // the whole of webpage data has been collected. parsing time!
            var time = $(html).find('h2 span:first').text();
            console.log("time: " + time)
            var hours = 0;
            var minutes = 0;
            var value = 0;
            var args = time.split(' ');
            var state = null;
            for (i in args) {
              var arg = args[i].trim();
              if (['hr', 'hrs'].indexOf(arg) > -1) {
                hours = value;
              } else if (['min', 'mins'].indexOf(arg) > -1) {
                minutes = value;
              } else {
                value = parseInt(arg);
              }
            }
            callback((hours * 60) + minutes);
         }).on('error', function() {
           console.log("HTTP Error")
         });
    });
  },

  total: 0,
  seen: 0,

  add_up: function (duration) {
    ietf_airports.total += (duration * 2);
    ietf_airports.seen += 1;
    if (ietf_airports.seen == ietf_airports.IETF_airports.length) {
      var hours = Math.floor(ietf_airports.total / 60);
      var mins = ietf_airports.total % 60;
      console.log(hours + ":" + mins);
    }
  }
  
}

ietf_airports.run(argv._[0]);
// ietf_airports.flying_time('MEL', "SFO", console.log)