var _ = require('underscore') ;
var colors = require('colors') ;

function lnugExample (fire, name) {
  // Closure: local variables are available across states:
  var languages = {} ;

  return {
    startState: "Welcome",

    states: {

      "Welcome": {
        entry: function () {
          console.log("Welcome. I'm searching for: '%s'", name) ;
          return "GetTweets" ;
        }
      },

      "GetTweets": {
        entry: function () {
          fire.request("http://search.twitter.com/search.json?"+
                    "q="+name+
                    "&result_type=mixed") ;
        },
        timeout: 2000,
        actions: {
          "request.err": "@error",
          "request.done": "HandleResult",
          "timeout": function () {
            console.log("Sorry, but Twitter are taking a long time to reply.") ;
            return "@exit" ;
          }
        }
      },

      "HandleResult": {
        entry: function (response, body) {
          body = JSON.parse(body) ;
          console.log("Completed in: ", body.completed_in) ;
          _.each(body.results, function (result) {
            languages[result.iso_language_code] = 
              (languages[result.iso_language_code] || 0) + 1 ;
          }) ;
          if (body.results.length) {
            return ["GetProfileImages", body.results] ;
          } else {
            return "@exit" ;
          }
        }
      },

      "GetProfileImages": {
        map: {
          fn: "request.get",
          fnArgs: function (result) {
            return { url: result.profile_image_url } ;
          },
          iterator: function (response, body) {
            return body.toString() ;
          }
        },
        actions: {
          "map.done": function (images, results, errors) {
            _.each(results, function (result, index) {
              var image = errors[index] ? "" : images[index] ;
              var fromTo = result.from_user.bold.red + " -> " ;
              fromTo += (result.to_user ? result.to_user : 
                "<span style="color: blue;">[Everyone]</span>").blue ;
              console.log("%d: %s Img len: %d\n   '%s'", 
                index, fromTo, image.length, result.text.green) ;
            }) ;
            return "DumpLanguages" ;
          }
        }
      },

      "DumpLanguages": {
        entry: function () {
          console.log("\nLanguage counts:") ;
          _.each(languages, function (count, lang) {
            console.log("  %s: %d", lang, count) ;
          }) ;
          return "@exit" ;
        }
      }
    }
  } ;
}

lnugExample.defaults = {
  imports: { 
    request: require('request')
  },
  args: [ '#lnug' ]
};

module.exports = lnugExample;

Example Output

The source code for the example can be found in the file examples/lnug/lnugExample2.js and run using the ignite command line helper application as follows:

 $ ./bin/ignite examples/lnug/lnugExample2.js
 Running examples/lnug/lnugExample2.js
 Welcome. I'm searching for: '#lnug'
 Completed in:  0.192
 0: lancestewart -> [Everyone] Img len: 900
    'RT @ikershaw: Looking for Node.js developers to recruit at London node.js
     user meetup #lnug @jlsync is here with his award winning charity hack app!'
 1: chrisspranklen -> [Everyone] Img len: 935
   'The #node.js Developer would be working (12 wk contract!) for an app
    development company (London). anyone looking - 02032061924? #lnug #node'
 2: teabass -> [Everyone] Img len: 3769
    'I always tell the #lnug google group about tickets before anyone else,
     if you want to ensure you get one then join http://t.co/yYMfVszj'
 3: teabass -> [Everyone] Img len: 3769
    'RT @forwardtek: All the slides from #lnug on wednesday have been added
     to the @lanyrd page and the videos will be added next week: http://t.co/LVjtN8j2'
 4: Erica_Bennett -> [Everyone] Img len: 1431
    'RT @rtweed: Cash prizes available in #GlobalsDB competition. 1st one
     this Saturday: http://t.co/QRdhROcP  http://t.co/UZ7raFlQ #lnug #nodejs'
 5: rtweed -> [Everyone] Img len: 6779
    'Cash prizes available in #GlobalsDB competition. 1st one this
     Saturday: http://t.co/QRdhROcP  http://t.co/UZ7raFlQ #lnug #nodejs'
 6: detillen -> [Everyone] Img len: 1332
    'And, to complete the set, here are my slides from #lnug yesterday
     http://t.co/06RIz7oZ - remember state machines rock!'
 7: Cloud9IDE -> [Everyone] Img len: 3479
    'RT @mikedeboer: My slides from yesterday's presentation at #lnug:
     http://t.co/bTZha4DG Hope you'll find it useful during development!'
 8: chrissywelsh -> [Everyone] Img len: 3236
    'RT @mikedeboer: My slides from yesterday's presentation at #lnug:
     http://t.co/bTZha4DG Hope you'll find it useful during development!'
 9: mikedeboer -> [Everyone] Img len: 1650
    'My slides from yesterday's presentation at #lnug: http://t.co/bTZha4DG
     Hope you'll find it useful during development!'
 10: podviaznikov -> [Everyone] Img len: 823
    'RT @seddonandrew: Slides from my 'massive-git' #lnug talk are up
     at http://t.co/iFlIbE2k'
 11: mikedeboer -> [Everyone] Img len: 1650
    'Back in #AMS from a great #lnug in London. Thanks for having me
     guys! Met a lot of talented people. Slides of my talk will be online soon!'
 12: seddonandrew -> bjnortier Img len: 4127
    '@bjnortier haha thanks. I name dropped @shapesmith at #lnug last
     night so hopefully you'll get some people checking it out :-)'
 13: patrickhamann -> [Everyone] Img len: 4726
    'RT @seddonandrew: Slides from my 'massive-git' #lnug talk are
     up at http://t.co/iFlIbE2k'
 14: teabass -> [Everyone] Img len: 3769
    'RT @seddonandrew: Slides from my 'massive-git' #lnug talk are
     up at http://t.co/iFlIbE2k'
 
 Language counts:
   en: 15
 run: examples/lnug/lnugExample2.js Exited with no error.