"use strict"

App.TreeNavigator =
  setNodes: (nodes) ->
    nodes.children("ul").each ->
      link = $(this).prev("a")
      $('<span class="open"></span>').insertBefore(link)
      App.TreeNavigator.setNodes($(this).children())

  initialize: ->
    elem = $("[data-tree-navigator]")
    if(elem.length == 0)
      return

    ul = elem.find("ul:eq(0)")
    if(ul.length && ul.children().length)
      App.TreeNavigator.setNodes(ul.children())

    $("[data-tree-navigator] span").on
      click: ->
        if($(this).hasClass("open"))
          $(this).removeClass("open").addClass("closed")
          $(this).siblings("ul").hide()
        else if($(this).hasClass("closed"))
          $(this).removeClass("closed").addClass("open")
          $(this).siblings("ul").show()

    anchor = $(location).attr("hash")

    if anchor
      elem.find("a[href='#{anchor}']").parents("ul").each ->
        $(this).show()
        $(this).siblings("span").removeClass("closed").addClass("open")