"use strict";

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI Cloud (C) Copyright IBM Corp. 2014, 2017
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['./MenuWithTick', 'underscore'], function (MenuWithTick, _) {
  'use strict';

  var ToggleMenuBar = null;
  /**
   * Represents a drop down menu that can be added to an app bar
   */

  ToggleMenuBar = MenuWithTick.extend({
    itemMap: {},
    sCheckedItemName: null,
    updateLabel: false,

    /**
     * Creates a new item
     *
     * @param spec -
     *            The item spec
     * @param root -
     *            A reference to the root menu item, where items go if the app bar is collapsed horizontally
     */
    init: function init(spec) {
      _.extend(this, spec);

      ToggleMenuBar.inherited('init', this, arguments);
    },
    toggleHandler: function toggleHandler(name) {
      this.updateSelectedItem(name);
    },

    /**
     * Make sure only one item is selected
     */
    updateSelectedItem: function updateSelectedItem(name) {
      var item = this.itemMap[name];

      if (!item || !item.children) {
        // if we haven't selected an item, we do not update the tick
        return;
      } //uncheck current item


      if (this.sCheckedItemName) {
        //update tick mark on menu item
        this.updateMenuItemTick(this.itemMap[this.sCheckedItemName], false);
      } //update check item name


      this.sCheckedItemName = name; //update tick mark on menu item

      this.updateMenuItemTick(this.itemMap[this.sCheckedItemName], true);

      if (this.updateLabel) {
        if (this.$menuLabel.length > 0 && item.children) {
          this.$menuLabel.text(item.children('a').attr('aria-label'));
        }
      }
    },
    render: function render() {
      var promise = ToggleMenuBar.inherited('render', this, arguments);

      if (this.updateLabel) {
        _.each(this.items, function (item) {
          if (item.checked) {
            this.updateSelectedItem(item.name);
          }
        }.bind(this));

        if (!this.sCheckedItemName) {
          this.updateSelectedItem(this.items[0].name);
        }
      }

      return promise;
    },
    _performAction: function _performAction(id) {
      this.updateSelectedItem(this._getItemNameFromID(id));
      ToggleMenuBar.inherited('_performAction', this, arguments);
    },
    _getItemNameFromID: function _getItemNameFromID(id) {
      var prefix = this.viewId + '_';
      return id.substr(prefix.length);
    },
    _buildDropDown: function _buildDropDown() {
      var promise = ToggleMenuBar.inherited('_buildDropDown', this, arguments); //populate itemMap to reference elements by name

      _.each(this.items, function (item) {
        var id = this._getItemId(item.name);

        this.itemMap[item.name] = this.$menu.find('#' + id);

        if (item.checked) {
          this.sCheckedItemName = item.name;
        }
      }.bind(this));

      this.updateMenuItemTick(this.itemMap[this.sCheckedItemName], true);
      return promise;
    },
    remove: function remove() {
      _.each(this.itemMap, function (item) {
        if (item.remove) {
          item.remove();
        }
      });

      ToggleMenuBar.inherited('remove', this, arguments);
    }
  });
  return ToggleMenuBar;
});