"use strict";

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: Cognos Analytics
 * Copyright IBM Corp. 2015, 2016
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['jquery', 'underscore', 'q', 'bi/commons/ui/core/Class', 'bi/admin/nls/StringResource'], function ($, _, Q, Class, StringResource) {
  'use strict'; //NOSONAR: meant to be strict

  var _singletonInstance = null;
  var MagicWand = Class.extend({
    _types: {
      'searchInput': {
        'query': 'input[type="search"]',
        'ariaLabel': StringResource.get('editFilter'),
        'module': 'bi/admin/common/ui/input/SearchInput'
      },
      'radioBox': {
        'query': 'input[type="radio"]',
        'module': 'bi/admin/common/ui/input/RadioBox'
      },
      'checkBox': {
        'query': 'input[type="checkbox"]',
        'module': 'bi/admin/common/ui/input/CheckBox'
      },
      'button': {
        'query': 'button',
        'module': 'bi/admin/common/ui/input/Button'
      },
      'testFlow': {
        'query': '[data-bi-testflow]',
        'module': 'bi/admin/common/ui/testflow/TestFlow'
      }
    },
    init: function init(options) {
      $.extend(this, options);
    },
    searchInput: function searchInput(scope) {
      var spec = this._types['searchInput'];
      return this._doTransform(spec, scope);
    },
    radioBox: function radioBox(scope) {
      var spec = this._types['radioBox'];
      return this._doTransform(spec, scope);
    },
    checkBox: function checkBox(scope) {
      var spec = this._types['checkBox'];
      return this._doTransform(spec, scope);
    },
    button: function button(scope) {
      var spec = this._types['button'];
      return this._doTransform(spec, scope);
    },
    testFlow: function testFlow(scope) {
      var spec = this._types['testFlow'];
      return this._doTransform(spec, scope);
    },
    all: function all(scope) {
      // May optimize the transform process with faster quering
      this.searchInput(scope);
      this.radioBox(scope);
      this.checkBox(scope);
      this.button(scope);
    },
    _doTransform: function _doTransform(spec, scope) {
      var deferred = Q.defer();
      var elements = $(spec.query, scope);
      elements.hide();

      require([spec.module], function (WidgetClass) {
        var widgets = [];
        elements.each(function (index, el) {
          var w;
          var $el = $(el);

          if (spec.ariaLabel) {
            $el.attr('aria-label', spec.ariaLabel);
          }

          var widgetName = $el.data('widgetName');

          if (widgetName) {
            w = $el.data(widgetName);

            if (w && w.refresh) {
              w.refresh();
            }
          } else {
            w = new WidgetClass({
              el: this,
              scope: scope
            });
          }

          widgets.push(w);
        });
        elements.show();
        deferred.resolve(widgets);
      });

      return deferred.promise;
    },
    transform: function transform() {// to do...
    }
  });
  var _static = {
    getInstance: function getInstance() {
      if (!_singletonInstance) {
        _singletonInstance = new MagicWand();
      }

      return _singletonInstance;
    }
  };
  return _static.getInstance();
});