// Simple phantom.js integration script

// Adapted from Modernizr

function waitFor(testFx, onReady, timeOutMillis) {

  var maxtimeOutMillis = timeOutMillis ? timeOutMillis :  5001 //< Default Max Timout is 5s

    , start = new Date().getTime()

    , condition = false

    , interval = setInterval(function () {

        if ((new Date().getTime() - start < maxtimeOutMillis) && !condition) {

          // If not time-out yet and condition not yet fulfilled

          condition = (typeof(testFx) === "string" ? eval(testFx) : testFx()) //< defensive code

        } else {

          if (!condition) {

            // If condition still not fulfilled (timeout but condition is 'false')

            console.log("'waitFor()' timeout")

            phantom.exit(1)

          } else {

            // Condition fulfilled (timeout and/or condition is 'true')

            typeof(onReady) === "string" ? eval(onReady) : onReady() //< Do what it's supposed to do once the condition is fulfilled

            clearInterval(interval) //< Stop this interval

          }

        }

    }, 100) //< repeat check every 100ms

}

if (phantom.args.length === 0 || phantom.args.length > 2) {

  console.log('Usage: phantom.js URL')

  phantom.exit()

}

var page = new WebPage()

// Route "console.log()" calls from within the Page context to the main Phantom context (i.e. current "this")

page.onConsoleMessage = function(msg) {

  console.log(msg)

};

page.open(phantom.args[0], function(status){

  if (status !== "success") {

    console.log("Unable to access network")

    phantom.exit()

  } else {

    waitFor(function(){

      return page.evaluate(function(){

        var el = document.getElementById('qunit-testresult')

        if (el && el.innerText.match('completed')) {

          return true

        }

        return false

      })

    }, function(){

      var failedNum = page.evaluate(function(){

        var el = document.getElementById('qunit-testresult')

        try {

          return el.getElementsByClassName('failed')[0].innerHTML

        } catch (e) { }

        return 10000

      });

      phantom.exit((parseInt(failedNum, 10) > 0) ? 1 : 0)

    })

  }

})