RootView = require 'views/core/RootView'
template = require 'templates/home-view'

module.exports = class HomeView extends RootView
  id: 'home-view'
  template: template

  events:
    'click #play-button': 'onClickPlayButton'
    'click #close-teacher-note-link': 'onClickCloseTeacherNoteLink'

  constructor: (options={}) ->
    super()
    @withTeacherNote = options.withTeacherNote
    window.tracker?.trackEvent 'Homepage Loaded', category: 'Homepage'
    if @getQueryVariable 'hour_of_code'
      application.router.navigate "/hoc", trigger: true

    isHourOfCodeWeek = false  # Temporary: default to /hoc flow during the main event week
    if isHourOfCodeWeek and (@isNewPlayer() or (@justPlaysCourses() and me.isAnonymous()))
      # Go/return straight to playing single-player HoC course on Play click
      @playURL = '/hoc?go=true'
      @alternatePlayURL = '/play'
      @alternatePlayText = 'home.play_campaign_version'
    else if @justPlaysCourses()
      # Save players who might be in a classroom from getting into the campaign
      @playURL = '/courses'
      @alternatePlayURL = '/play'
      @alternatePlayText = 'home.play_campaign_version'
    else
      @playURL = '/play'

  onClickPlayButton: (e) ->
    @playSound 'menu-button-click'
    return if @playURL isnt '/play'
    e.preventDefault()
    e.stopImmediatePropagation()
    window.tracker?.trackEvent 'Click Play', category: 'Homepage'
    window.open '/play', '_blank'

  afterInsert: ->
    super(arguments...)

  isOldBrowser: ->
    if $.browser
      majorVersion = $.browser.versionNumber
      return true if $.browser.mozilla && majorVersion < 25
      return true if $.browser.chrome && majorVersion < 31  # Noticed Gems in the Deep not loading with 30
      return true if $.browser.safari && majorVersion < 6  # 6 might have problems with Aether, or maybe just old minors of 6: https://errorception.com/projects/51a79585ee207206390002a2/errors/547a202e1ead63ba4e4ac9fd
    else
      console.warn 'no more jquery browser version...'
    return false

  justPlaysCourses: ->
    # This heuristic could be better, but currently we don't add to me.get('courseInstances') for single-player anonymous intro courses, so they have to beat a level without choosing a hero.
    return me.get('stats')?.gamesCompleted and not me.get('heroConfig')

  isNewPlayer: ->
    not me.get('stats')?.gamesCompleted and not me.get('heroConfig')

  onClickCloseTeacherNoteLink: ->
    @$('.style-flat').addClass('hide')