paulfioravanti/sample_app

# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/
updateCountdownString = (remaining) ->
  if remaining > 1 or remaining is 0
    $(".countdown").text I18n.t('shared.micropost_form.characters_remaining.other',
                                count: remaining)
  else if remaining is 1
    $(".countdown").text I18n.t('shared.micropost_form.characters_remaining.one',
                                count: remaining)
  else if remaining is -1
    $(".countdown").text I18n.t('shared.micropost_form.characters_over.one',
                                count: -remaining)
  else
    $(".countdown").text I18n.t('shared.micropost_form.characters_over.other',
                                count: -remaining)

takeFromCollection = (collection, className) ->
  (collection.filter (attr) -> attr is className).toString()

updateCountdownAttributes = (remaining) ->
  toRemove = ["nearlimit", "almostlimit", "overlimit"]
  if remaining < 20
    toAdd = takeFromCollection(toRemove, "nearlimit")
  if remaining < 11
    toAdd = takeFromCollection(toRemove, "almostlimit")
  if remaining < 0
    toAdd = takeFromCollection(toRemove, "overlimit")

  if toAdd isnt null
    for attr in toRemove
      $(".countdown").removeClass attr
    $(".countdown").addClass toAdd
  if toAdd is "overlimit"
    $("input.btn.btn-large.btn-primary").attr("disabled", "true")
  else
    $("input.btn.btn-large.btn-primary").removeAttr("disabled")

updateCountdown = ->
  remaining = 140 - $("#micropost_content").val().length
  updateCountdownString(remaining)
  updateCountdownAttributes(remaining)

$ ->
  if $('body').hasClass('static_pages-controller home-action')
    $(".countdown").text I18n.t('shared.micropost_form.characters_remaining.other',
                                count: 140)
    $("#micropost_content").on("change keyup keydown keypress paste drop",
                               updateCountdown)
    if ('.pagination').length
      $(window).scroll ->
        url = $('.pagination .next_page a').attr('href')
        if url and $(window).scrollTop() > $(document).height() - $(window).height() - 500
          $('.pagination').text I18n.t('shared.endless_scroll.fetching_microposts')
          $.getScript(url)
      $(window).scroll()
    # $('.best_in_place').best_in_place().bind "ajax:success", ->
    #   $(this).closest("li").effect "highlight", {}, 2000