/**
 * FieldHeight module
 *  @param {object} window  global object
 *  @param {function} $ jQuery library
 *  @param {object} EventMgr EventMgr library
 *  @param {object} App Application
 *  @param {object} ScrollHandler Scrollbar library
 */
App.FieldHeight = function(window, $, EventMgr, App, ScrollHandler) {
  'use strict';
  function init() {
    EventMgr.bind('appendForm', checkFieldForClass);
  }

  function checkFieldForClass(e, data) {
    var tabId = data.tabId;
    setTimeout(function() {
      $('#form-wrapper-' + tabId).find('.i-control__fullwidth').each(function() {
         var availableHeight = $('#form-scroll-' + tabId).height(),
             hasButtons = $('#' + tabId + '-buttons').length;
         setHeight(this, availableHeight, hasButtons);
      });
    });
  }

  function setHeight(elem, height, hasButtons) {
    //buttons height(52) + margin bottom(20) + padding row (5) + tbody(2) + td padding (2) + resizer (5) + control border (2)
    var MAGICNUMBER = 37,
        BUTTONHEIGHT = 52,
        height = height - MAGICNUMBER;
    if (hasButtons) {
      height -= BUTTONHEIGHT;
    }
    if (elem) {
      elem.setAttribute('height', height + 'px');
    }
  }

  var api = {
    init: init
  };

  return api;

}(window, $, EventMgr, App, ScrollHandler);