codecombat/headless_client.coffee

###
This file will simulate games on node.js by emulating the browser environment.
###

bowerComponentsPath = "./bower_components/"
headlessClientPath = "./headless_client/"

# SETTINGS
options =
  workerCode: require headlessClientPath + 'worker_world'
  debug: true # Enable logging of ajax calls mainly
  testing: true # Instead of simulating 'real' games, use the same one over and over again. Good for leak hunting.
  testFile: require headlessClientPath + 'test.js'
  leakTest: false # Install callback that tries to find leaks automatically
  exitOnLeak: false # Exit if leak is found. Only useful if leaktest is set to true, obviously.
  heapdump: false # Dumps the whole heap after every pass. The heap dumps can then be viewed in Chrome browser.
  headlessClient: true

options.heapdump = require('heapdump') if options.heapdump
server = if options.testing then "http://127.0.0.1:3000" else "https://codecombat.com"

# Disabled modules
disable = [
  'lib/AudioPlayer'
  'locale/locale'
  '../locale/locale'
]

# Start of the actual code. Setting up the enivronment to match the environment of the browser

# Global emulated stuff
GLOBAL.window = GLOBAL
GLOBAL.document = location: pathname: "headless_client"
GLOBAL.console.debug = console.log
GLOBAL.Worker = require('webworker-threads').Worker
Worker::removeEventListener = (what) ->
  if what is 'message'
    @onmessage = -> #This webworker api has only one event listener at a time.
GLOBAL.tv4 = require('tv4').tv4
GLOBAL.marked = setOptions: ->
store = {}
GLOBAL.localStorage =
    getItem: (key) => store[key]
    setItem: (key, s) => store[key] = s
    removeItem: (key) => delete store[key]

# Hook node.js require. See https://github.com/mfncooper/mockery/blob/master/mockery.js
# The signature of this function *must* match that of Node's Module._load,
# since it will replace that.
# (Why is there no easier way?)
# the path used for the loader. __dirname is module dependent.
path = __dirname
m = require 'module'
originalLoader = m._load
hookedLoader = (request, parent, isMain) ->
  if request in disable or ~request.indexOf('templates')
    console.log 'Ignored ' + request if options.debug
    return class fake
  else if '/' in request and not (request[0] is '.') or request is 'application'
    request = path + '/app/' + request
  else if request is 'underscore'
    request = 'lodash'
  console.log "loading " + request if options.debug
  originalLoader request, parent, isMain
unhook = () ->
  m._load = originalLoader
hook = () ->
  m._load = hookedLoader

GLOBAL.$ = GLOBAL.jQuery = require headlessClientPath + 'jQlone'
$._debug = options.debug
$._server = server

do (setupLodash = this) ->
  GLOBAL._ = require 'lodash'
  _.str = require 'underscore.string'
  _.string = _.str
  _.mixin _.str.exports()

# load Backbone. Needs hooked loader to reroute underscore to lodash.
hook()
GLOBAL.Backbone = require bowerComponentsPath + 'backbone/backbone'
# Use original loader for theese
unhook()
Backbone.$ = $
require bowerComponentsPath + 'validated-backbone-mediator/backbone-mediator'
GLOBAL.Aether = require 'aether'
# Set up new loader. Again.
hook()

login = require './login.coffee' #should contain an object containing they keys 'username' and 'password'
#Login user and start the code.
$.ajax
  url: '/auth/login'
  type: "POST"
  data: login
  parse: true
  error: (error) -> "Bad Error. Can't connect to server or something. " + error
  success: (response, textStatus, jqXHR) ->
    console.log "User: ", response if options.debug
    unless jqXHR.status is 200
      console.log "User not authenticated. Status code: ", jqXHR.status
      return
    GLOBAL.window.userObject = response # JSON.parse response
    Simulator = require 'lib/simulator/Simulator'
    sim = new Simulator options
    #sim.fetchAndSimulateTask()