{
  "version": 3,
  "sources": [
    "node_modules/browser-pack/_prelude.js",
    "index.js",
    "node_modules/events/events.js",
    "src/DerivedHelper/index.js",
    "src/SearchParameters/RefinementList.js",
    "src/SearchParameters/index.js",
    "src/SearchResults/generate-hierarchical-tree.js",
    "src/SearchResults/index.js",
    "src/algoliasearch.helper.js",
    "src/functions/compact.js",
    "src/functions/defaultsPure.js",
    "src/functions/find.js",
    "src/functions/findIndex.js",
    "src/functions/formatSort.js",
    "src/functions/inherits.js",
    "src/functions/intersection.js",
    "src/functions/merge.js",
    "src/functions/objectHasKeys.js",
    "src/functions/omit.js",
    "src/functions/orderBy.js",
    "src/functions/valToNumber.js",
    "src/requestBuilder.js",
    "src/version.js"
  ],
  "names": [],
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  "file": "generated.js",
  "sourceRoot": "",
  "sourcesContent": [
    "(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})",
    "'use strict';\n\nvar AlgoliaSearchHelper = require('./src/algoliasearch.helper');\n\nvar SearchParameters = require('./src/SearchParameters');\nvar SearchResults = require('./src/SearchResults');\n\n/**\n * The algoliasearchHelper module is the function that will let its\n * contains everything needed to use the Algoliasearch\n * Helper. It is a also a function that instanciate the helper.\n * To use the helper, you also need the Algolia JS client v3.\n * @example\n * //using the UMD build\n * var client = algoliasearch('latency', '6be0576ff61c053d5f9a3225e2a90f76');\n * var helper = algoliasearchHelper(client, 'bestbuy', {\n *   facets: ['shipping'],\n *   disjunctiveFacets: ['category']\n * });\n * helper.on('result', function(event) {\n *   console.log(event.results);\n * });\n * helper\n *   .toggleFacetRefinement('category', 'Movies & TV Shows')\n *   .toggleFacetRefinement('shipping', 'Free shipping')\n *   .search();\n * @example\n * // The helper is an event emitter using the node API\n * helper.on('result', updateTheResults);\n * helper.once('result', updateTheResults);\n * helper.removeListener('result', updateTheResults);\n * helper.removeAllListeners('result');\n * @module algoliasearchHelper\n * @param  {AlgoliaSearch} client an AlgoliaSearch client\n * @param  {string} index the name of the index to query\n * @param  {SearchParameters|object} opts an object defining the initial config of the search. It doesn't have to be a {SearchParameters}, just an object containing the properties you need from it.\n * @return {AlgoliaSearchHelper}\n */\nfunction algoliasearchHelper(client, index, opts) {\n  return new AlgoliaSearchHelper(client, index, opts);\n}\n\n/**\n * The version currently used\n * @member module:algoliasearchHelper.version\n * @type {number}\n */\nalgoliasearchHelper.version = require('./src/version.js');\n\n/**\n * Constructor for the Helper.\n * @member module:algoliasearchHelper.AlgoliaSearchHelper\n * @type {AlgoliaSearchHelper}\n */\nalgoliasearchHelper.AlgoliaSearchHelper = AlgoliaSearchHelper;\n\n/**\n * Constructor for the object containing all the parameters of the search.\n * @member module:algoliasearchHelper.SearchParameters\n * @type {SearchParameters}\n */\nalgoliasearchHelper.SearchParameters = SearchParameters;\n\n/**\n * Constructor for the object containing the results of the search.\n * @member module:algoliasearchHelper.SearchResults\n * @type {SearchResults}\n */\nalgoliasearchHelper.SearchResults = SearchResults;\n\nmodule.exports = algoliasearchHelper;\n",
    "// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nfunction EventEmitter() {\n  this._events = this._events || {};\n  this._maxListeners = this._maxListeners || undefined;\n}\nmodule.exports = EventEmitter;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nEventEmitter.defaultMaxListeners = 10;\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function(n) {\n  if (!isNumber(n) || n < 0 || isNaN(n))\n    throw TypeError('n must be a positive number');\n  this._maxListeners = n;\n  return this;\n};\n\nEventEmitter.prototype.emit = function(type) {\n  var er, handler, len, args, i, listeners;\n\n  if (!this._events)\n    this._events = {};\n\n  // If there is no 'error' event listener then throw.\n  if (type === 'error') {\n    if (!this._events.error ||\n        (isObject(this._events.error) && !this._events.error.length)) {\n      er = arguments[1];\n      if (er instanceof Error) {\n        throw er; // Unhandled 'error' event\n      } else {\n        // At least give some kind of context to the user\n        var err = new Error('Uncaught, unspecified \"error\" event. (' + er + ')');\n        err.context = er;\n        throw err;\n      }\n    }\n  }\n\n  handler = this._events[type];\n\n  if (isUndefined(handler))\n    return false;\n\n  if (isFunction(handler)) {\n    switch (arguments.length) {\n      // fast cases\n      case 1:\n        handler.call(this);\n        break;\n      case 2:\n        handler.call(this, arguments[1]);\n        break;\n      case 3:\n        handler.call(this, arguments[1], arguments[2]);\n        break;\n      // slower\n      default:\n        args = Array.prototype.slice.call(arguments, 1);\n        handler.apply(this, args);\n    }\n  } else if (isObject(handler)) {\n    args = Array.prototype.slice.call(arguments, 1);\n    listeners = handler.slice();\n    len = listeners.length;\n    for (i = 0; i < len; i++)\n      listeners[i].apply(this, args);\n  }\n\n  return true;\n};\n\nEventEmitter.prototype.addListener = function(type, listener) {\n  var m;\n\n  if (!isFunction(listener))\n    throw TypeError('listener must be a function');\n\n  if (!this._events)\n    this._events = {};\n\n  // To avoid recursion in the case that type === \"newListener\"! Before\n  // adding it to the listeners, first emit \"newListener\".\n  if (this._events.newListener)\n    this.emit('newListener', type,\n              isFunction(listener.listener) ?\n              listener.listener : listener);\n\n  if (!this._events[type])\n    // Optimize the case of one listener. Don't need the extra array object.\n    this._events[type] = listener;\n  else if (isObject(this._events[type]))\n    // If we've already got an array, just append.\n    this._events[type].push(listener);\n  else\n    // Adding the second element, need to change to array.\n    this._events[type] = [this._events[type], listener];\n\n  // Check for listener leak\n  if (isObject(this._events[type]) && !this._events[type].warned) {\n    if (!isUndefined(this._maxListeners)) {\n      m = this._maxListeners;\n    } else {\n      m = EventEmitter.defaultMaxListeners;\n    }\n\n    if (m && m > 0 && this._events[type].length > m) {\n      this._events[type].warned = true;\n      console.error('(node) warning: possible EventEmitter memory ' +\n                    'leak detected. %d listeners added. ' +\n                    'Use emitter.setMaxListeners() to increase limit.',\n                    this._events[type].length);\n      if (typeof console.trace === 'function') {\n        // not supported in IE 10\n        console.trace();\n      }\n    }\n  }\n\n  return this;\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.once = function(type, listener) {\n  if (!isFunction(listener))\n    throw TypeError('listener must be a function');\n\n  var fired = false;\n\n  function g() {\n    this.removeListener(type, g);\n\n    if (!fired) {\n      fired = true;\n      listener.apply(this, arguments);\n    }\n  }\n\n  g.listener = listener;\n  this.on(type, g);\n\n  return this;\n};\n\n// emits a 'removeListener' event iff the listener was removed\nEventEmitter.prototype.removeListener = function(type, listener) {\n  var list, position, length, i;\n\n  if (!isFunction(listener))\n    throw TypeError('listener must be a function');\n\n  if (!this._events || !this._events[type])\n    return this;\n\n  list = this._events[type];\n  length = list.length;\n  position = -1;\n\n  if (list === listener ||\n      (isFunction(list.listener) && list.listener === listener)) {\n    delete this._events[type];\n    if (this._events.removeListener)\n      this.emit('removeListener', type, listener);\n\n  } else if (isObject(list)) {\n    for (i = length; i-- > 0;) {\n      if (list[i] === listener ||\n          (list[i].listener && list[i].listener === listener)) {\n        position = i;\n        break;\n      }\n    }\n\n    if (position < 0)\n      return this;\n\n    if (list.length === 1) {\n      list.length = 0;\n      delete this._events[type];\n    } else {\n      list.splice(position, 1);\n    }\n\n    if (this._events.removeListener)\n      this.emit('removeListener', type, listener);\n  }\n\n  return this;\n};\n\nEventEmitter.prototype.removeAllListeners = function(type) {\n  var key, listeners;\n\n  if (!this._events)\n    return this;\n\n  // not listening for removeListener, no need to emit\n  if (!this._events.removeListener) {\n    if (arguments.length === 0)\n      this._events = {};\n    else if (this._events[type])\n      delete this._events[type];\n    return this;\n  }\n\n  // emit removeListener for all listeners on all events\n  if (arguments.length === 0) {\n    for (key in this._events) {\n      if (key === 'removeListener') continue;\n      this.removeAllListeners(key);\n    }\n    this.removeAllListeners('removeListener');\n    this._events = {};\n    return this;\n  }\n\n  listeners = this._events[type];\n\n  if (isFunction(listeners)) {\n    this.removeListener(type, listeners);\n  } else if (listeners) {\n    // LIFO order\n    while (listeners.length)\n      this.removeListener(type, listeners[listeners.length - 1]);\n  }\n  delete this._events[type];\n\n  return this;\n};\n\nEventEmitter.prototype.listeners = function(type) {\n  var ret;\n  if (!this._events || !this._events[type])\n    ret = [];\n  else if (isFunction(this._events[type]))\n    ret = [this._events[type]];\n  else\n    ret = this._events[type].slice();\n  return ret;\n};\n\nEventEmitter.prototype.listenerCount = function(type) {\n  if (this._events) {\n    var evlistener = this._events[type];\n\n    if (isFunction(evlistener))\n      return 1;\n    else if (evlistener)\n      return evlistener.length;\n  }\n  return 0;\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n  return emitter.listenerCount(type);\n};\n\nfunction isFunction(arg) {\n  return typeof arg === 'function';\n}\n\nfunction isNumber(arg) {\n  return typeof arg === 'number';\n}\n\nfunction isObject(arg) {\n  return typeof arg === 'object' && arg !== null;\n}\n\nfunction isUndefined(arg) {\n  return arg === void 0;\n}\n",
    "'use strict';\n\nvar events = require('events');\nvar inherits = require('../functions/inherits');\n\n/**\n * A DerivedHelper is a way to create sub requests to\n * Algolia from a main helper.\n * @class\n * @classdesc The DerivedHelper provides an event based interface for search callbacks:\n *  - search: when a search is triggered using the `search()` method.\n *  - result: when the response is retrieved from Algolia and is processed.\n *    This event contains a {@link SearchResults} object and the\n *    {@link SearchParameters} corresponding to this answer.\n */\nfunction DerivedHelper(mainHelper, fn) {\n  this.main = mainHelper;\n  this.fn = fn;\n  this.lastResults = null;\n}\n\ninherits(DerivedHelper, events.EventEmitter);\n\n/**\n * Detach this helper from the main helper\n * @return {undefined}\n * @throws Error if the derived helper is already detached\n */\nDerivedHelper.prototype.detach = function() {\n  this.removeAllListeners();\n  this.main.detachDerivedHelper(this);\n};\n\nDerivedHelper.prototype.getModifiedState = function(parameters) {\n  return this.fn(parameters);\n};\n\nmodule.exports = DerivedHelper;\n",
    "'use strict';\n\n/**\n * Functions to manipulate refinement lists\n *\n * The RefinementList is not formally defined through a prototype but is based\n * on a specific structure.\n *\n * @module SearchParameters.refinementList\n *\n * @typedef {string[]} SearchParameters.refinementList.Refinements\n * @typedef {Object.<string, SearchParameters.refinementList.Refinements>} SearchParameters.refinementList.RefinementList\n */\n\nvar defaultsPure = require('../functions/defaultsPure');\nvar omit = require('../functions/omit');\nvar objectHasKeys = require('../functions/objectHasKeys');\n\nvar lib = {\n  /**\n   * Adds a refinement to a RefinementList\n   * @param {RefinementList} refinementList the initial list\n   * @param {string} attribute the attribute to refine\n   * @param {string} value the value of the refinement, if the value is not a string it will be converted\n   * @return {RefinementList} a new and updated refinement list\n   */\n  addRefinement: function addRefinement(refinementList, attribute, value) {\n    if (lib.isRefined(refinementList, attribute, value)) {\n      return refinementList;\n    }\n\n    var valueAsString = '' + value;\n\n    var facetRefinement = !refinementList[attribute] ?\n      [valueAsString] :\n      refinementList[attribute].concat(valueAsString);\n\n    var mod = {};\n\n    mod[attribute] = facetRefinement;\n\n    return defaultsPure({}, mod, refinementList);\n  },\n  /**\n   * Removes refinement(s) for an attribute:\n   *  - if the value is specified removes the refinement for the value on the attribute\n   *  - if no value is specified removes all the refinements for this attribute\n   * @param {RefinementList} refinementList the initial list\n   * @param {string} attribute the attribute to refine\n   * @param {string} [value] the value of the refinement\n   * @return {RefinementList} a new and updated refinement lst\n   */\n  removeRefinement: function removeRefinement(refinementList, attribute, value) {\n    if (value === undefined) {\n      // we use the \"filter\" form of clearRefinement, since it leaves empty values as-is\n      // the form with a string will remove the attribute completely\n      return lib.clearRefinement(refinementList, function(v, f) {\n        return attribute === f;\n      });\n    }\n\n    var valueAsString = '' + value;\n\n    return lib.clearRefinement(refinementList, function(v, f) {\n      return attribute === f && valueAsString === v;\n    });\n  },\n  /**\n   * Toggles the refinement value for an attribute.\n   * @param {RefinementList} refinementList the initial list\n   * @param {string} attribute the attribute to refine\n   * @param {string} value the value of the refinement\n   * @return {RefinementList} a new and updated list\n   */\n  toggleRefinement: function toggleRefinement(refinementList, attribute, value) {\n    if (value === undefined) throw new Error('toggleRefinement should be used with a value');\n\n    if (lib.isRefined(refinementList, attribute, value)) {\n      return lib.removeRefinement(refinementList, attribute, value);\n    }\n\n    return lib.addRefinement(refinementList, attribute, value);\n  },\n  /**\n   * Clear all or parts of a RefinementList. Depending on the arguments, three\n   * kinds of behavior can happen:\n   *  - if no attribute is provided: clears the whole list\n   *  - if an attribute is provided as a string: clears the list for the specific attribute\n   *  - if an attribute is provided as a function: discards the elements for which the function returns true\n   * @param {RefinementList} refinementList the initial list\n   * @param {string} [attribute] the attribute or function to discard\n   * @param {string} [refinementType] optional parameter to give more context to the attribute function\n   * @return {RefinementList} a new and updated refinement list\n   */\n  clearRefinement: function clearRefinement(refinementList, attribute, refinementType) {\n    if (attribute === undefined) {\n      if (!objectHasKeys(refinementList)) {\n        return refinementList;\n      }\n      return {};\n    } else if (typeof attribute === 'string') {\n      return omit(refinementList, [attribute]);\n    } else if (typeof attribute === 'function') {\n      var hasChanged = false;\n\n      var newRefinementList = Object.keys(refinementList).reduce(function(memo, key) {\n        var values = refinementList[key] || [];\n        var facetList = values.filter(function(value) {\n          return !attribute(value, key, refinementType);\n        });\n\n        if (facetList.length !== values.length) {\n          hasChanged = true;\n        }\n        memo[key] = facetList;\n\n        return memo;\n      }, {});\n\n      if (hasChanged) return newRefinementList;\n      return refinementList;\n    }\n  },\n  /**\n   * Test if the refinement value is used for the attribute. If no refinement value\n   * is provided, test if the refinementList contains any refinement for the\n   * given attribute.\n   * @param {RefinementList} refinementList the list of refinement\n   * @param {string} attribute name of the attribute\n   * @param {string} [refinementValue] value of the filter/refinement\n   * @return {boolean}\n   */\n  isRefined: function isRefined(refinementList, attribute, refinementValue) {\n    var containsRefinements = !!refinementList[attribute] &&\n      refinementList[attribute].length > 0;\n\n    if (refinementValue === undefined || !containsRefinements) {\n      return containsRefinements;\n    }\n\n    var refinementValueAsString = '' + refinementValue;\n\n    return refinementList[attribute].indexOf(refinementValueAsString) !== -1;\n  }\n};\n\nmodule.exports = lib;\n",
    "'use strict';\n\nvar merge = require('../functions/merge');\nvar defaultsPure = require('../functions/defaultsPure');\nvar intersection = require('../functions/intersection');\nvar find = require('../functions/find');\nvar valToNumber = require('../functions/valToNumber');\nvar omit = require('../functions/omit');\nvar objectHasKeys = require('../functions/objectHasKeys');\n\nvar RefinementList = require('./RefinementList');\n\n/**\n * isEqual, but only for numeric refinement values, possible values:\n * - 5\n * - [5]\n * - [[5]]\n * - [[5,5],[4]]\n */\nfunction isEqualNumericRefinement(a, b) {\n  if (Array.isArray(a) && Array.isArray(b)) {\n    return (\n      a.length === b.length &&\n      a.every(function(el, i) {\n        return isEqualNumericRefinement(b[i], el);\n      })\n    );\n  }\n  return a === b;\n}\n\n/**\n * like _.find but using deep equality to be able to use it\n * to find arrays.\n * @private\n * @param {any[]} array array to search into (elements are base or array of base)\n * @param {any} searchedValue the value we're looking for (base or array of base)\n * @return {any} the searched value or undefined\n */\nfunction findArray(array, searchedValue) {\n  return find(array, function(currentValue) {\n    return isEqualNumericRefinement(currentValue, searchedValue);\n  });\n}\n\n/**\n * The facet list is the structure used to store the list of values used to\n * filter a single attribute.\n * @typedef {string[]} SearchParameters.FacetList\n */\n\n/**\n * Structure to store numeric filters with the operator as the key. The supported operators\n * are `=`, `>`, `<`, `>=`, `<=` and `!=`.\n * @typedef {Object.<string, Array.<number|number[]>>} SearchParameters.OperatorList\n */\n\n/**\n * SearchParameters is the data structure that contains all the information\n * usable for making a search to Algolia API. It doesn't do the search itself,\n * nor does it contains logic about the parameters.\n * It is an immutable object, therefore it has been created in a way that each\n * changes does not change the object itself but returns a copy with the\n * modification.\n * This object should probably not be instantiated outside of the helper. It will\n * be provided when needed. This object is documented for reference as you'll\n * get it from events generated by the {@link AlgoliaSearchHelper}.\n * If need be, instantiate the Helper from the factory function {@link SearchParameters.make}\n * @constructor\n * @classdesc contains all the parameters of a search\n * @param {object|SearchParameters} newParameters existing parameters or partial object\n * for the properties of a new SearchParameters\n * @see SearchParameters.make\n * @example <caption>SearchParameters of the first query in\n *   <a href=\"http://demos.algolia.com/instant-search-demo/\">the instant search demo</a></caption>\n{\n   \"query\": \"\",\n   \"disjunctiveFacets\": [\n      \"customerReviewCount\",\n      \"category\",\n      \"salePrice_range\",\n      \"manufacturer\"\n  ],\n   \"maxValuesPerFacet\": 30,\n   \"page\": 0,\n   \"hitsPerPage\": 10,\n   \"facets\": [\n      \"type\",\n      \"shipping\"\n  ]\n}\n */\nfunction SearchParameters(newParameters) {\n  var params = newParameters ? SearchParameters._parseNumbers(newParameters) : {};\n\n  /**\n   * This attribute contains the list of all the conjunctive facets\n   * used. This list will be added to requested facets in the\n   * [facets attribute](https://www.algolia.com/doc/rest-api/search#param-facets) sent to algolia.\n   * @member {string[]}\n   */\n  this.facets = params.facets || [];\n  /**\n   * This attribute contains the list of all the disjunctive facets\n   * used. This list will be added to requested facets in the\n   * [facets attribute](https://www.algolia.com/doc/rest-api/search#param-facets) sent to algolia.\n   * @member {string[]}\n   */\n  this.disjunctiveFacets = params.disjunctiveFacets || [];\n  /**\n   * This attribute contains the list of all the hierarchical facets\n   * used. This list will be added to requested facets in the\n   * [facets attribute](https://www.algolia.com/doc/rest-api/search#param-facets) sent to algolia.\n   * Hierarchical facets are a sub type of disjunctive facets that\n   * let you filter faceted attributes hierarchically.\n   * @member {string[]|object[]}\n   */\n  this.hierarchicalFacets = params.hierarchicalFacets || [];\n\n  // Refinements\n  /**\n   * This attribute contains all the filters that need to be\n   * applied on the conjunctive facets. Each facet must be properly\n   * defined in the `facets` attribute.\n   *\n   * The key is the name of the facet, and the `FacetList` contains all\n   * filters selected for the associated facet name.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `facetFilters` attribute.\n   * @member {Object.<string, SearchParameters.FacetList>}\n   */\n  this.facetsRefinements = params.facetsRefinements || {};\n  /**\n   * This attribute contains all the filters that need to be\n   * excluded from the conjunctive facets. Each facet must be properly\n   * defined in the `facets` attribute.\n   *\n   * The key is the name of the facet, and the `FacetList` contains all\n   * filters excluded for the associated facet name.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `facetFilters` attribute.\n   * @member {Object.<string, SearchParameters.FacetList>}\n   */\n  this.facetsExcludes = params.facetsExcludes || {};\n  /**\n   * This attribute contains all the filters that need to be\n   * applied on the disjunctive facets. Each facet must be properly\n   * defined in the `disjunctiveFacets` attribute.\n   *\n   * The key is the name of the facet, and the `FacetList` contains all\n   * filters selected for the associated facet name.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `facetFilters` attribute.\n   * @member {Object.<string, SearchParameters.FacetList>}\n   */\n  this.disjunctiveFacetsRefinements = params.disjunctiveFacetsRefinements || {};\n  /**\n   * This attribute contains all the filters that need to be\n   * applied on the numeric attributes.\n   *\n   * The key is the name of the attribute, and the value is the\n   * filters to apply to this attribute.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `numericFilters` attribute.\n   * @member {Object.<string, SearchParameters.OperatorList>}\n   */\n  this.numericRefinements = params.numericRefinements || {};\n  /**\n   * This attribute contains all the tags used to refine the query.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `tagFilters` attribute.\n   * @member {string[]}\n   */\n  this.tagRefinements = params.tagRefinements || [];\n  /**\n   * This attribute contains all the filters that need to be\n   * applied on the hierarchical facets. Each facet must be properly\n   * defined in the `hierarchicalFacets` attribute.\n   *\n   * The key is the name of the facet, and the `FacetList` contains all\n   * filters selected for the associated facet name. The FacetList values\n   * are structured as a string that contain the values for each level\n   * separated by the configured separator.\n   *\n   * When querying algolia, the values stored in this attribute will\n   * be translated into the `facetFilters` attribute.\n   * @member {Object.<string, SearchParameters.FacetList>}\n   */\n  this.hierarchicalFacetsRefinements = params.hierarchicalFacetsRefinements || {};\n\n  var self = this;\n  Object.keys(params).forEach(function(paramName) {\n    var isKeyKnown = SearchParameters.PARAMETERS.indexOf(paramName) !== -1;\n    var isValueDefined = params[paramName] !== undefined;\n\n    if (!isKeyKnown && isValueDefined) {\n      self[paramName] = params[paramName];\n    }\n  });\n}\n\n/**\n * List all the properties in SearchParameters and therefore all the known Algolia properties\n * This doesn't contain any beta/hidden features.\n * @private\n */\nSearchParameters.PARAMETERS = Object.keys(new SearchParameters());\n\n/**\n * @private\n * @param {object} partialState full or part of a state\n * @return {object} a new object with the number keys as number\n */\nSearchParameters._parseNumbers = function(partialState) {\n  // Do not reparse numbers in SearchParameters, they ought to be parsed already\n  if (partialState instanceof SearchParameters) return partialState;\n\n  var numbers = {};\n\n  var numberKeys = [\n    'aroundPrecision',\n    'aroundRadius',\n    'getRankingInfo',\n    'minWordSizefor2Typos',\n    'minWordSizefor1Typo',\n    'page',\n    'maxValuesPerFacet',\n    'distinct',\n    'minimumAroundRadius',\n    'hitsPerPage',\n    'minProximity'\n  ];\n\n  numberKeys.forEach(function(k) {\n    var value = partialState[k];\n    if (typeof value === 'string') {\n      var parsedValue = parseFloat(value);\n      // global isNaN is ok to use here, value is only number or NaN\n      numbers[k] = isNaN(parsedValue) ? value : parsedValue;\n    }\n  });\n\n  // there's two formats of insideBoundingBox, we need to parse\n  // the one which is an array of float geo rectangles\n  if (Array.isArray(partialState.insideBoundingBox)) {\n    numbers.insideBoundingBox = partialState.insideBoundingBox.map(function(geoRect) {\n      return geoRect.map(function(value) {\n        return parseFloat(value);\n      });\n    });\n  }\n\n  if (partialState.numericRefinements) {\n    var numericRefinements = {};\n    Object.keys(partialState.numericRefinements).forEach(function(attribute) {\n      var operators = partialState.numericRefinements[attribute] || {};\n      numericRefinements[attribute] = {};\n      Object.keys(operators).forEach(function(operator) {\n        var values = operators[operator];\n        var parsedValues = values.map(function(v) {\n          if (Array.isArray(v)) {\n            return v.map(function(vPrime) {\n              if (typeof vPrime === 'string') {\n                return parseFloat(vPrime);\n              }\n              return vPrime;\n            });\n          } else if (typeof v === 'string') {\n            return parseFloat(v);\n          }\n          return v;\n        });\n        numericRefinements[attribute][operator] = parsedValues;\n      });\n    });\n    numbers.numericRefinements = numericRefinements;\n  }\n\n  return merge({}, partialState, numbers);\n};\n\n/**\n * Factory for SearchParameters\n * @param {object|SearchParameters} newParameters existing parameters or partial\n * object for the properties of a new SearchParameters\n * @return {SearchParameters} frozen instance of SearchParameters\n */\nSearchParameters.make = function makeSearchParameters(newParameters) {\n  var instance = new SearchParameters(newParameters);\n\n  var hierarchicalFacets = newParameters.hierarchicalFacets || [];\n  hierarchicalFacets.forEach(function(facet) {\n    if (facet.rootPath) {\n      var currentRefinement = instance.getHierarchicalRefinement(facet.name);\n\n      if (currentRefinement.length > 0 && currentRefinement[0].indexOf(facet.rootPath) !== 0) {\n        instance = instance.clearRefinements(facet.name);\n      }\n\n      // get it again in case it has been cleared\n      currentRefinement = instance.getHierarchicalRefinement(facet.name);\n      if (currentRefinement.length === 0) {\n        instance = instance.toggleHierarchicalFacetRefinement(facet.name, facet.rootPath);\n      }\n    }\n  });\n\n  return instance;\n};\n\n/**\n * Validates the new parameters based on the previous state\n * @param {SearchParameters} currentState the current state\n * @param {object|SearchParameters} parameters the new parameters to set\n * @return {Error|null} Error if the modification is invalid, null otherwise\n */\nSearchParameters.validate = function(currentState, parameters) {\n  var params = parameters || {};\n\n  if (currentState.tagFilters && params.tagRefinements && params.tagRefinements.length > 0) {\n    return new Error(\n      '[Tags] Cannot switch from the managed tag API to the advanced API. It is probably ' +\n      'an error, if it is really what you want, you should first clear the tags with clearTags method.');\n  }\n\n  if (currentState.tagRefinements.length > 0 && params.tagFilters) {\n    return new Error(\n      '[Tags] Cannot switch from the advanced tag API to the managed API. It is probably ' +\n      'an error, if it is not, you should first clear the tags with clearTags method.');\n  }\n\n  if (\n    currentState.numericFilters &&\n    params.numericRefinements &&\n    objectHasKeys(params.numericRefinements)\n  ) {\n    return new Error(\n      \"[Numeric filters] Can't switch from the advanced to the managed API. It\" +\n        ' is probably an error, if this is really what you want, you have to first' +\n        ' clear the numeric filters.'\n    );\n  }\n\n  if (objectHasKeys(currentState.numericRefinements) && params.numericFilters) {\n    return new Error(\n      \"[Numeric filters] Can't switch from the managed API to the advanced. It\" +\n      ' is probably an error, if this is really what you want, you have to first' +\n      ' clear the numeric filters.');\n  }\n\n  return null;\n};\n\nSearchParameters.prototype = {\n  constructor: SearchParameters,\n\n  /**\n   * Remove all refinements (disjunctive + conjunctive + excludes + numeric filters)\n   * @method\n   * @param {undefined|string|SearchParameters.clearCallback} [attribute] optional string or function\n   * - If not given, means to clear all the filters.\n   * - If `string`, means to clear all refinements for the `attribute` named filter.\n   * - If `function`, means to clear all the refinements that return truthy values.\n   * @return {SearchParameters}\n   */\n  clearRefinements: function clearRefinements(attribute) {\n    var patch = {\n      numericRefinements: this._clearNumericRefinements(attribute),\n      facetsRefinements: RefinementList.clearRefinement(\n        this.facetsRefinements,\n        attribute,\n        'conjunctiveFacet'\n      ),\n      facetsExcludes: RefinementList.clearRefinement(\n        this.facetsExcludes,\n        attribute,\n        'exclude'\n      ),\n      disjunctiveFacetsRefinements: RefinementList.clearRefinement(\n        this.disjunctiveFacetsRefinements,\n        attribute,\n        'disjunctiveFacet'\n      ),\n      hierarchicalFacetsRefinements: RefinementList.clearRefinement(\n        this.hierarchicalFacetsRefinements,\n        attribute,\n        'hierarchicalFacet'\n      )\n    };\n    if (\n      patch.numericRefinements === this.numericRefinements &&\n      patch.facetsRefinements === this.facetsRefinements &&\n      patch.facetsExcludes === this.facetsExcludes &&\n      patch.disjunctiveFacetsRefinements === this.disjunctiveFacetsRefinements &&\n      patch.hierarchicalFacetsRefinements === this.hierarchicalFacetsRefinements\n    ) {\n      return this;\n    }\n    return this.setQueryParameters(patch);\n  },\n  /**\n   * Remove all the refined tags from the SearchParameters\n   * @method\n   * @return {SearchParameters}\n   */\n  clearTags: function clearTags() {\n    if (this.tagFilters === undefined && this.tagRefinements.length === 0) return this;\n\n    return this.setQueryParameters({\n      tagFilters: undefined,\n      tagRefinements: []\n    });\n  },\n  /**\n   * Set the index.\n   * @method\n   * @param {string} index the index name\n   * @return {SearchParameters}\n   */\n  setIndex: function setIndex(index) {\n    if (index === this.index) return this;\n\n    return this.setQueryParameters({\n      index: index\n    });\n  },\n  /**\n   * Query setter\n   * @method\n   * @param {string} newQuery value for the new query\n   * @return {SearchParameters}\n   */\n  setQuery: function setQuery(newQuery) {\n    if (newQuery === this.query) return this;\n\n    return this.setQueryParameters({\n      query: newQuery\n    });\n  },\n  /**\n   * Page setter\n   * @method\n   * @param {number} newPage new page number\n   * @return {SearchParameters}\n   */\n  setPage: function setPage(newPage) {\n    if (newPage === this.page) return this;\n\n    return this.setQueryParameters({\n      page: newPage\n    });\n  },\n  /**\n   * Facets setter\n   * The facets are the simple facets, used for conjunctive (and) faceting.\n   * @method\n   * @param {string[]} facets all the attributes of the algolia records used for conjunctive faceting\n   * @return {SearchParameters}\n   */\n  setFacets: function setFacets(facets) {\n    return this.setQueryParameters({\n      facets: facets\n    });\n  },\n  /**\n   * Disjunctive facets setter\n   * Change the list of disjunctive (or) facets the helper chan handle.\n   * @method\n   * @param {string[]} facets all the attributes of the algolia records used for disjunctive faceting\n   * @return {SearchParameters}\n   */\n  setDisjunctiveFacets: function setDisjunctiveFacets(facets) {\n    return this.setQueryParameters({\n      disjunctiveFacets: facets\n    });\n  },\n  /**\n   * HitsPerPage setter\n   * Hits per page represents the number of hits retrieved for this query\n   * @method\n   * @param {number} n number of hits retrieved per page of results\n   * @return {SearchParameters}\n   */\n  setHitsPerPage: function setHitsPerPage(n) {\n    if (this.hitsPerPage === n) return this;\n\n    return this.setQueryParameters({\n      hitsPerPage: n\n    });\n  },\n  /**\n   * typoTolerance setter\n   * Set the value of typoTolerance\n   * @method\n   * @param {string} typoTolerance new value of typoTolerance (\"true\", \"false\", \"min\" or \"strict\")\n   * @return {SearchParameters}\n   */\n  setTypoTolerance: function setTypoTolerance(typoTolerance) {\n    if (this.typoTolerance === typoTolerance) return this;\n\n    return this.setQueryParameters({\n      typoTolerance: typoTolerance\n    });\n  },\n  /**\n   * Add a numeric filter for a given attribute\n   * When value is an array, they are combined with OR\n   * When value is a single value, it will combined with AND\n   * @method\n   * @param {string} attribute attribute to set the filter on\n   * @param {string} operator operator of the filter (possible values: =, >, >=, <, <=, !=)\n   * @param {number | number[]} value value of the filter\n   * @return {SearchParameters}\n   * @example\n   * // for price = 50 or 40\n   * searchparameter.addNumericRefinement('price', '=', [50, 40]);\n   * @example\n   * // for size = 38 and 40\n   * searchparameter.addNumericRefinement('size', '=', 38);\n   * searchparameter.addNumericRefinement('size', '=', 40);\n   */\n  addNumericRefinement: function(attribute, operator, v) {\n    var value = valToNumber(v);\n\n    if (this.isNumericRefined(attribute, operator, value)) return this;\n\n    var mod = merge({}, this.numericRefinements);\n\n    mod[attribute] = merge({}, mod[attribute]);\n\n    if (mod[attribute][operator]) {\n      // Array copy\n      mod[attribute][operator] = mod[attribute][operator].slice();\n      // Add the element. Concat can't be used here because value can be an array.\n      mod[attribute][operator].push(value);\n    } else {\n      mod[attribute][operator] = [value];\n    }\n\n    return this.setQueryParameters({\n      numericRefinements: mod\n    });\n  },\n  /**\n   * Get the list of conjunctive refinements for a single facet\n   * @param {string} facetName name of the attribute used for faceting\n   * @return {string[]} list of refinements\n   */\n  getConjunctiveRefinements: function(facetName) {\n    if (!this.isConjunctiveFacet(facetName)) {\n      return [];\n    }\n    return this.facetsRefinements[facetName] || [];\n  },\n  /**\n   * Get the list of disjunctive refinements for a single facet\n   * @param {string} facetName name of the attribute used for faceting\n   * @return {string[]} list of refinements\n   */\n  getDisjunctiveRefinements: function(facetName) {\n    if (!this.isDisjunctiveFacet(facetName)) {\n      return [];\n    }\n    return this.disjunctiveFacetsRefinements[facetName] || [];\n  },\n  /**\n   * Get the list of hierarchical refinements for a single facet\n   * @param {string} facetName name of the attribute used for faceting\n   * @return {string[]} list of refinements\n   */\n  getHierarchicalRefinement: function(facetName) {\n    // we send an array but we currently do not support multiple\n    // hierarchicalRefinements for a hierarchicalFacet\n    return this.hierarchicalFacetsRefinements[facetName] || [];\n  },\n  /**\n   * Get the list of exclude refinements for a single facet\n   * @param {string} facetName name of the attribute used for faceting\n   * @return {string[]} list of refinements\n   */\n  getExcludeRefinements: function(facetName) {\n    if (!this.isConjunctiveFacet(facetName)) {\n      return [];\n    }\n    return this.facetsExcludes[facetName] || [];\n  },\n\n  /**\n   * Remove all the numeric filter for a given (attribute, operator)\n   * @method\n   * @param {string} attribute attribute to set the filter on\n   * @param {string} [operator] operator of the filter (possible values: =, >, >=, <, <=, !=)\n   * @param {number} [number] the value to be removed\n   * @return {SearchParameters}\n   */\n  removeNumericRefinement: function(attribute, operator, paramValue) {\n    if (paramValue !== undefined) {\n      if (!this.isNumericRefined(attribute, operator, paramValue)) {\n        return this;\n      }\n      return this.setQueryParameters({\n        numericRefinements: this._clearNumericRefinements(function(value, key) {\n          return (\n            key === attribute &&\n            value.op === operator &&\n            isEqualNumericRefinement(value.val, valToNumber(paramValue))\n          );\n        })\n      });\n    } else if (operator !== undefined) {\n      if (!this.isNumericRefined(attribute, operator)) return this;\n      return this.setQueryParameters({\n        numericRefinements: this._clearNumericRefinements(function(value, key) {\n          return key === attribute && value.op === operator;\n        })\n      });\n    }\n\n    if (!this.isNumericRefined(attribute)) return this;\n    return this.setQueryParameters({\n      numericRefinements: this._clearNumericRefinements(function(value, key) {\n        return key === attribute;\n      })\n    });\n  },\n  /**\n   * Get the list of numeric refinements for a single facet\n   * @param {string} facetName name of the attribute used for faceting\n   * @return {SearchParameters.OperatorList[]} list of refinements\n   */\n  getNumericRefinements: function(facetName) {\n    return this.numericRefinements[facetName] || {};\n  },\n  /**\n   * Return the current refinement for the (attribute, operator)\n   * @param {string} attribute attribute in the record\n   * @param {string} operator operator applied on the refined values\n   * @return {Array.<number|number[]>} refined values\n   */\n  getNumericRefinement: function(attribute, operator) {\n    return this.numericRefinements[attribute] && this.numericRefinements[attribute][operator];\n  },\n  /**\n   * Clear numeric filters.\n   * @method\n   * @private\n   * @param {string|SearchParameters.clearCallback} [attribute] optional string or function\n   * - If not given, means to clear all the filters.\n   * - If `string`, means to clear all refinements for the `attribute` named filter.\n   * - If `function`, means to clear all the refinements that return truthy values.\n   * @return {Object.<string, OperatorList>}\n   */\n  _clearNumericRefinements: function _clearNumericRefinements(attribute) {\n    if (attribute === undefined) {\n      if (!objectHasKeys(this.numericRefinements)) {\n        return this.numericRefinements;\n      }\n      return {};\n    } else if (typeof attribute === 'string') {\n      if (!objectHasKeys(this.numericRefinements[attribute])) {\n        return this.numericRefinements;\n      }\n      return omit(this.numericRefinements, [attribute]);\n    } else if (typeof attribute === 'function') {\n      var hasChanged = false;\n      var numericRefinements = this.numericRefinements;\n      var newNumericRefinements = Object.keys(numericRefinements).reduce(function(memo, key) {\n        var operators = numericRefinements[key];\n        var operatorList = {};\n\n        operators = operators || {};\n        Object.keys(operators).forEach(function(operator) {\n          var values = operators[operator] || [];\n          var outValues = [];\n          values.forEach(function(value) {\n            var predicateResult = attribute({val: value, op: operator}, key, 'numeric');\n            if (!predicateResult) outValues.push(value);\n          });\n          if (outValues.length !== values.length) {\n            hasChanged = true;\n          }\n          operatorList[operator] = outValues;\n        });\n\n        memo[key] = operatorList;\n\n        return memo;\n      }, {});\n\n      if (hasChanged) return newNumericRefinements;\n      return this.numericRefinements;\n    }\n  },\n  /**\n   * Add a facet to the facets attribute of the helper configuration, if it\n   * isn't already present.\n   * @method\n   * @param {string} facet facet name to add\n   * @return {SearchParameters}\n   */\n  addFacet: function addFacet(facet) {\n    if (this.isConjunctiveFacet(facet)) {\n      return this;\n    }\n\n    return this.setQueryParameters({\n      facets: this.facets.concat([facet])\n    });\n  },\n  /**\n   * Add a disjunctive facet to the disjunctiveFacets attribute of the helper\n   * configuration, if it isn't already present.\n   * @method\n   * @param {string} facet disjunctive facet name to add\n   * @return {SearchParameters}\n   */\n  addDisjunctiveFacet: function addDisjunctiveFacet(facet) {\n    if (this.isDisjunctiveFacet(facet)) {\n      return this;\n    }\n\n    return this.setQueryParameters({\n      disjunctiveFacets: this.disjunctiveFacets.concat([facet])\n    });\n  },\n  /**\n   * Add a hierarchical facet to the hierarchicalFacets attribute of the helper\n   * configuration.\n   * @method\n   * @param {object} hierarchicalFacet hierarchical facet to add\n   * @return {SearchParameters}\n   * @throws will throw an error if a hierarchical facet with the same name was already declared\n   */\n  addHierarchicalFacet: function addHierarchicalFacet(hierarchicalFacet) {\n    if (this.isHierarchicalFacet(hierarchicalFacet.name)) {\n      throw new Error(\n        'Cannot declare two hierarchical facets with the same name: `' + hierarchicalFacet.name + '`');\n    }\n\n    return this.setQueryParameters({\n      hierarchicalFacets: this.hierarchicalFacets.concat([hierarchicalFacet])\n    });\n  },\n  /**\n   * Add a refinement on a \"normal\" facet\n   * @method\n   * @param {string} facet attribute to apply the faceting on\n   * @param {string} value value of the attribute (will be converted to string)\n   * @return {SearchParameters}\n   */\n  addFacetRefinement: function addFacetRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n    if (RefinementList.isRefined(this.facetsRefinements, facet, value)) return this;\n\n    return this.setQueryParameters({\n      facetsRefinements: RefinementList.addRefinement(this.facetsRefinements, facet, value)\n    });\n  },\n  /**\n   * Exclude a value from a \"normal\" facet\n   * @method\n   * @param {string} facet attribute to apply the exclusion on\n   * @param {string} value value of the attribute (will be converted to string)\n   * @return {SearchParameters}\n   */\n  addExcludeRefinement: function addExcludeRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n    if (RefinementList.isRefined(this.facetsExcludes, facet, value)) return this;\n\n    return this.setQueryParameters({\n      facetsExcludes: RefinementList.addRefinement(this.facetsExcludes, facet, value)\n    });\n  },\n  /**\n   * Adds a refinement on a disjunctive facet.\n   * @method\n   * @param {string} facet attribute to apply the faceting on\n   * @param {string} value value of the attribute (will be converted to string)\n   * @return {SearchParameters}\n   */\n  addDisjunctiveFacetRefinement: function addDisjunctiveFacetRefinement(facet, value) {\n    if (!this.isDisjunctiveFacet(facet)) {\n      throw new Error(\n        facet + ' is not defined in the disjunctiveFacets attribute of the helper configuration');\n    }\n\n    if (RefinementList.isRefined(this.disjunctiveFacetsRefinements, facet, value)) return this;\n\n    return this.setQueryParameters({\n      disjunctiveFacetsRefinements: RefinementList.addRefinement(\n        this.disjunctiveFacetsRefinements, facet, value)\n    });\n  },\n  /**\n   * addTagRefinement adds a tag to the list used to filter the results\n   * @param {string} tag tag to be added\n   * @return {SearchParameters}\n   */\n  addTagRefinement: function addTagRefinement(tag) {\n    if (this.isTagRefined(tag)) return this;\n\n    var modification = {\n      tagRefinements: this.tagRefinements.concat(tag)\n    };\n\n    return this.setQueryParameters(modification);\n  },\n  /**\n   * Remove a facet from the facets attribute of the helper configuration, if it\n   * is present.\n   * @method\n   * @param {string} facet facet name to remove\n   * @return {SearchParameters}\n   */\n  removeFacet: function removeFacet(facet) {\n    if (!this.isConjunctiveFacet(facet)) {\n      return this;\n    }\n\n    return this.clearRefinements(facet).setQueryParameters({\n      facets: this.facets.filter(function(f) {\n        return f !== facet;\n      })\n    });\n  },\n  /**\n   * Remove a disjunctive facet from the disjunctiveFacets attribute of the\n   * helper configuration, if it is present.\n   * @method\n   * @param {string} facet disjunctive facet name to remove\n   * @return {SearchParameters}\n   */\n  removeDisjunctiveFacet: function removeDisjunctiveFacet(facet) {\n    if (!this.isDisjunctiveFacet(facet)) {\n      return this;\n    }\n\n    return this.clearRefinements(facet).setQueryParameters({\n      disjunctiveFacets: this.disjunctiveFacets.filter(function(f) {\n        return f !== facet;\n      })\n    });\n  },\n  /**\n   * Remove a hierarchical facet from the hierarchicalFacets attribute of the\n   * helper configuration, if it is present.\n   * @method\n   * @param {string} facet hierarchical facet name to remove\n   * @return {SearchParameters}\n   */\n  removeHierarchicalFacet: function removeHierarchicalFacet(facet) {\n    if (!this.isHierarchicalFacet(facet)) {\n      return this;\n    }\n\n    return this.clearRefinements(facet).setQueryParameters({\n      hierarchicalFacets: this.hierarchicalFacets.filter(function(f) {\n        return f.name !== facet;\n      })\n    });\n  },\n  /**\n   * Remove a refinement set on facet. If a value is provided, it will clear the\n   * refinement for the given value, otherwise it will clear all the refinement\n   * values for the faceted attribute.\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {string} [value] value used to filter\n   * @return {SearchParameters}\n   */\n  removeFacetRefinement: function removeFacetRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n    if (!RefinementList.isRefined(this.facetsRefinements, facet, value)) return this;\n\n    return this.setQueryParameters({\n      facetsRefinements: RefinementList.removeRefinement(this.facetsRefinements, facet, value)\n    });\n  },\n  /**\n   * Remove a negative refinement on a facet\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {string} value value used to filter\n   * @return {SearchParameters}\n   */\n  removeExcludeRefinement: function removeExcludeRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n    if (!RefinementList.isRefined(this.facetsExcludes, facet, value)) return this;\n\n    return this.setQueryParameters({\n      facetsExcludes: RefinementList.removeRefinement(this.facetsExcludes, facet, value)\n    });\n  },\n  /**\n   * Remove a refinement on a disjunctive facet\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {string} value value used to filter\n   * @return {SearchParameters}\n   */\n  removeDisjunctiveFacetRefinement: function removeDisjunctiveFacetRefinement(facet, value) {\n    if (!this.isDisjunctiveFacet(facet)) {\n      throw new Error(\n        facet + ' is not defined in the disjunctiveFacets attribute of the helper configuration');\n    }\n    if (!RefinementList.isRefined(this.disjunctiveFacetsRefinements, facet, value)) return this;\n\n    return this.setQueryParameters({\n      disjunctiveFacetsRefinements: RefinementList.removeRefinement(\n        this.disjunctiveFacetsRefinements, facet, value)\n    });\n  },\n  /**\n   * Remove a tag from the list of tag refinements\n   * @method\n   * @param {string} tag the tag to remove\n   * @return {SearchParameters}\n   */\n  removeTagRefinement: function removeTagRefinement(tag) {\n    if (!this.isTagRefined(tag)) return this;\n\n    var modification = {\n      tagRefinements: this.tagRefinements.filter(function(t) {\n        return t !== tag;\n      })\n    };\n\n    return this.setQueryParameters(modification);\n  },\n  /**\n   * Generic toggle refinement method to use with facet, disjunctive facets\n   * and hierarchical facets\n   * @param  {string} facet the facet to refine\n   * @param  {string} value the associated value\n   * @return {SearchParameters}\n   * @throws will throw an error if the facet is not declared in the settings of the helper\n   * @deprecated since version 2.19.0, see {@link SearchParameters#toggleFacetRefinement}\n   */\n  toggleRefinement: function toggleRefinement(facet, value) {\n    return this.toggleFacetRefinement(facet, value);\n  },\n  /**\n   * Generic toggle refinement method to use with facet, disjunctive facets\n   * and hierarchical facets\n   * @param  {string} facet the facet to refine\n   * @param  {string} value the associated value\n   * @return {SearchParameters}\n   * @throws will throw an error if the facet is not declared in the settings of the helper\n   */\n  toggleFacetRefinement: function toggleFacetRefinement(facet, value) {\n    if (this.isHierarchicalFacet(facet)) {\n      return this.toggleHierarchicalFacetRefinement(facet, value);\n    } else if (this.isConjunctiveFacet(facet)) {\n      return this.toggleConjunctiveFacetRefinement(facet, value);\n    } else if (this.isDisjunctiveFacet(facet)) {\n      return this.toggleDisjunctiveFacetRefinement(facet, value);\n    }\n\n    throw new Error('Cannot refine the undeclared facet ' + facet +\n      '; it should be added to the helper options facets, disjunctiveFacets or hierarchicalFacets');\n  },\n  /**\n   * Switch the refinement applied over a facet/value\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {SearchParameters}\n   */\n  toggleConjunctiveFacetRefinement: function toggleConjunctiveFacetRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n\n    return this.setQueryParameters({\n      facetsRefinements: RefinementList.toggleRefinement(this.facetsRefinements, facet, value)\n    });\n  },\n  /**\n   * Switch the refinement applied over a facet/value\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {SearchParameters}\n   */\n  toggleExcludeFacetRefinement: function toggleExcludeFacetRefinement(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      throw new Error(facet + ' is not defined in the facets attribute of the helper configuration');\n    }\n\n    return this.setQueryParameters({\n      facetsExcludes: RefinementList.toggleRefinement(this.facetsExcludes, facet, value)\n    });\n  },\n  /**\n   * Switch the refinement applied over a facet/value\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {SearchParameters}\n   */\n  toggleDisjunctiveFacetRefinement: function toggleDisjunctiveFacetRefinement(facet, value) {\n    if (!this.isDisjunctiveFacet(facet)) {\n      throw new Error(\n        facet + ' is not defined in the disjunctiveFacets attribute of the helper configuration');\n    }\n\n    return this.setQueryParameters({\n      disjunctiveFacetsRefinements: RefinementList.toggleRefinement(\n        this.disjunctiveFacetsRefinements, facet, value)\n    });\n  },\n  /**\n   * Switch the refinement applied over a facet/value\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {SearchParameters}\n   */\n  toggleHierarchicalFacetRefinement: function toggleHierarchicalFacetRefinement(facet, value) {\n    if (!this.isHierarchicalFacet(facet)) {\n      throw new Error(\n        facet + ' is not defined in the hierarchicalFacets attribute of the helper configuration');\n    }\n\n    var separator = this._getHierarchicalFacetSeparator(this.getHierarchicalFacetByName(facet));\n\n    var mod = {};\n\n    var upOneOrMultipleLevel = this.hierarchicalFacetsRefinements[facet] !== undefined &&\n      this.hierarchicalFacetsRefinements[facet].length > 0 && (\n      // remove current refinement:\n      // refinement was 'beer > IPA', call is toggleRefine('beer > IPA'), refinement should be `beer`\n      this.hierarchicalFacetsRefinements[facet][0] === value ||\n      // remove a parent refinement of the current refinement:\n      //  - refinement was 'beer > IPA > Flying dog'\n      //  - call is toggleRefine('beer > IPA')\n      //  - refinement should be `beer`\n      this.hierarchicalFacetsRefinements[facet][0].indexOf(value + separator) === 0\n    );\n\n    if (upOneOrMultipleLevel) {\n      if (value.indexOf(separator) === -1) {\n        // go back to root level\n        mod[facet] = [];\n      } else {\n        mod[facet] = [value.slice(0, value.lastIndexOf(separator))];\n      }\n    } else {\n      mod[facet] = [value];\n    }\n\n    return this.setQueryParameters({\n      hierarchicalFacetsRefinements: defaultsPure({}, mod, this.hierarchicalFacetsRefinements)\n    });\n  },\n\n  /**\n   * Adds a refinement on a hierarchical facet.\n   * @param {string} facet the facet name\n   * @param {string} path the hierarchical facet path\n   * @return {SearchParameter} the new state\n   * @throws Error if the facet is not defined or if the facet is refined\n   */\n  addHierarchicalFacetRefinement: function(facet, path) {\n    if (this.isHierarchicalFacetRefined(facet)) {\n      throw new Error(facet + ' is already refined.');\n    }\n    if (!this.isHierarchicalFacet(facet)) {\n      throw new Error(facet + ' is not defined in the hierarchicalFacets attribute of the helper configuration.');\n    }\n    var mod = {};\n    mod[facet] = [path];\n    return this.setQueryParameters({\n      hierarchicalFacetsRefinements: defaultsPure({}, mod, this.hierarchicalFacetsRefinements)\n    });\n  },\n\n  /**\n   * Removes the refinement set on a hierarchical facet.\n   * @param {string} facet the facet name\n   * @return {SearchParameter} the new state\n   * @throws Error if the facet is not defined or if the facet is not refined\n   */\n  removeHierarchicalFacetRefinement: function(facet) {\n    if (!this.isHierarchicalFacetRefined(facet)) {\n      return this;\n    }\n    var mod = {};\n    mod[facet] = [];\n    return this.setQueryParameters({\n      hierarchicalFacetsRefinements: defaultsPure({}, mod, this.hierarchicalFacetsRefinements)\n    });\n  },\n  /**\n   * Switch the tag refinement\n   * @method\n   * @param {string} tag the tag to remove or add\n   * @return {SearchParameters}\n   */\n  toggleTagRefinement: function toggleTagRefinement(tag) {\n    if (this.isTagRefined(tag)) {\n      return this.removeTagRefinement(tag);\n    }\n\n    return this.addTagRefinement(tag);\n  },\n  /**\n   * Test if the facet name is from one of the disjunctive facets\n   * @method\n   * @param {string} facet facet name to test\n   * @return {boolean}\n   */\n  isDisjunctiveFacet: function(facet) {\n    return this.disjunctiveFacets.indexOf(facet) > -1;\n  },\n  /**\n   * Test if the facet name is from one of the hierarchical facets\n   * @method\n   * @param {string} facetName facet name to test\n   * @return {boolean}\n   */\n  isHierarchicalFacet: function(facetName) {\n    return this.getHierarchicalFacetByName(facetName) !== undefined;\n  },\n  /**\n   * Test if the facet name is from one of the conjunctive/normal facets\n   * @method\n   * @param {string} facet facet name to test\n   * @return {boolean}\n   */\n  isConjunctiveFacet: function(facet) {\n    return this.facets.indexOf(facet) > -1;\n  },\n  /**\n   * Returns true if the facet is refined, either for a specific value or in\n   * general.\n   * @method\n   * @param {string} facet name of the attribute for used for faceting\n   * @param {string} value, optional value. If passed will test that this value\n   * is filtering the given facet.\n   * @return {boolean} returns true if refined\n   */\n  isFacetRefined: function isFacetRefined(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      return false;\n    }\n    return RefinementList.isRefined(this.facetsRefinements, facet, value);\n  },\n  /**\n   * Returns true if the facet contains exclusions or if a specific value is\n   * excluded.\n   *\n   * @method\n   * @param {string} facet name of the attribute for used for faceting\n   * @param {string} [value] optional value. If passed will test that this value\n   * is filtering the given facet.\n   * @return {boolean} returns true if refined\n   */\n  isExcludeRefined: function isExcludeRefined(facet, value) {\n    if (!this.isConjunctiveFacet(facet)) {\n      return false;\n    }\n    return RefinementList.isRefined(this.facetsExcludes, facet, value);\n  },\n  /**\n   * Returns true if the facet contains a refinement, or if a value passed is a\n   * refinement for the facet.\n   * @method\n   * @param {string} facet name of the attribute for used for faceting\n   * @param {string} value optional, will test if the value is used for refinement\n   * if there is one, otherwise will test if the facet contains any refinement\n   * @return {boolean}\n   */\n  isDisjunctiveFacetRefined: function isDisjunctiveFacetRefined(facet, value) {\n    if (!this.isDisjunctiveFacet(facet)) {\n      return false;\n    }\n    return RefinementList.isRefined(this.disjunctiveFacetsRefinements, facet, value);\n  },\n  /**\n   * Returns true if the facet contains a refinement, or if a value passed is a\n   * refinement for the facet.\n   * @method\n   * @param {string} facet name of the attribute for used for faceting\n   * @param {string} value optional, will test if the value is used for refinement\n   * if there is one, otherwise will test if the facet contains any refinement\n   * @return {boolean}\n   */\n  isHierarchicalFacetRefined: function isHierarchicalFacetRefined(facet, value) {\n    if (!this.isHierarchicalFacet(facet)) {\n      return false;\n    }\n\n    var refinements = this.getHierarchicalRefinement(facet);\n\n    if (!value) {\n      return refinements.length > 0;\n    }\n\n    return refinements.indexOf(value) !== -1;\n  },\n  /**\n   * Test if the triple (attribute, operator, value) is already refined.\n   * If only the attribute and the operator are provided, it tests if the\n   * contains any refinement value.\n   * @method\n   * @param {string} attribute attribute for which the refinement is applied\n   * @param {string} [operator] operator of the refinement\n   * @param {string} [value] value of the refinement\n   * @return {boolean} true if it is refined\n   */\n  isNumericRefined: function isNumericRefined(attribute, operator, value) {\n    if (value === undefined && operator === undefined) {\n      return !!this.numericRefinements[attribute];\n    }\n\n    var isOperatorDefined =\n      this.numericRefinements[attribute] &&\n      this.numericRefinements[attribute][operator] !== undefined;\n\n    if (value === undefined || !isOperatorDefined) {\n      return isOperatorDefined;\n    }\n\n    var parsedValue = valToNumber(value);\n    var isAttributeValueDefined =\n      findArray(this.numericRefinements[attribute][operator], parsedValue) !==\n      undefined;\n\n    return isOperatorDefined && isAttributeValueDefined;\n  },\n  /**\n   * Returns true if the tag refined, false otherwise\n   * @method\n   * @param {string} tag the tag to check\n   * @return {boolean}\n   */\n  isTagRefined: function isTagRefined(tag) {\n    return this.tagRefinements.indexOf(tag) !== -1;\n  },\n  /**\n   * Returns the list of all disjunctive facets refined\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {string[]}\n   */\n  getRefinedDisjunctiveFacets: function getRefinedDisjunctiveFacets() {\n    var self = this;\n\n    // attributes used for numeric filter can also be disjunctive\n    var disjunctiveNumericRefinedFacets = intersection(\n      Object.keys(this.numericRefinements).filter(function(facet) {\n        return Object.keys(self.numericRefinements[facet]).length > 0;\n      }),\n      this.disjunctiveFacets\n    );\n\n    return Object.keys(this.disjunctiveFacetsRefinements).filter(function(facet) {\n      return self.disjunctiveFacetsRefinements[facet].length > 0;\n    })\n      .concat(disjunctiveNumericRefinedFacets)\n      .concat(this.getRefinedHierarchicalFacets());\n  },\n  /**\n   * Returns the list of all disjunctive facets refined\n   * @method\n   * @param {string} facet name of the attribute used for faceting\n   * @param {value} value value used for filtering\n   * @return {string[]}\n   */\n  getRefinedHierarchicalFacets: function getRefinedHierarchicalFacets() {\n    var self = this;\n    return intersection(\n      // enforce the order between the two arrays,\n      // so that refinement name index === hierarchical facet index\n      this.hierarchicalFacets.map(function(facet) { return facet.name; }),\n      Object.keys(this.hierarchicalFacetsRefinements).filter(function(facet) {\n        return self.hierarchicalFacetsRefinements[facet].length > 0;\n      })\n    );\n  },\n  /**\n   * Returned the list of all disjunctive facets not refined\n   * @method\n   * @return {string[]}\n   */\n  getUnrefinedDisjunctiveFacets: function() {\n    var refinedFacets = this.getRefinedDisjunctiveFacets();\n\n    return this.disjunctiveFacets.filter(function(f) {\n      return refinedFacets.indexOf(f) === -1;\n    });\n  },\n\n  managedParameters: [\n    'index',\n    'facets', 'disjunctiveFacets', 'facetsRefinements',\n    'facetsExcludes', 'disjunctiveFacetsRefinements',\n    'numericRefinements', 'tagRefinements', 'hierarchicalFacets', 'hierarchicalFacetsRefinements'\n  ],\n  getQueryParams: function getQueryParams() {\n    var managedParameters = this.managedParameters;\n\n    var queryParams = {};\n\n    var self = this;\n    Object.keys(this).forEach(function(paramName) {\n      var paramValue = self[paramName];\n      if (managedParameters.indexOf(paramName) === -1 && paramValue !== undefined) {\n        queryParams[paramName] = paramValue;\n      }\n    });\n\n    return queryParams;\n  },\n  /**\n   * Let the user set a specific value for a given parameter. Will return the\n   * same instance if the parameter is invalid or if the value is the same as the\n   * previous one.\n   * @method\n   * @param {string} parameter the parameter name\n   * @param {any} value the value to be set, must be compliant with the definition\n   * of the attribute on the object\n   * @return {SearchParameters} the updated state\n   */\n  setQueryParameter: function setParameter(parameter, value) {\n    if (this[parameter] === value) return this;\n\n    var modification = {};\n\n    modification[parameter] = value;\n\n    return this.setQueryParameters(modification);\n  },\n  /**\n   * Let the user set any of the parameters with a plain object.\n   * @method\n   * @param {object} params all the keys and the values to be updated\n   * @return {SearchParameters} a new updated instance\n   */\n  setQueryParameters: function setQueryParameters(params) {\n    if (!params) return this;\n\n    var error = SearchParameters.validate(this, params);\n\n    if (error) {\n      throw error;\n    }\n\n    var self = this;\n    var nextWithNumbers = SearchParameters._parseNumbers(params);\n    var previousPlainObject = Object.keys(this).reduce(function(acc, key) {\n      acc[key] = self[key];\n      return acc;\n    }, {});\n\n    var nextPlainObject = Object.keys(nextWithNumbers).reduce(\n      function(previous, key) {\n        var isPreviousValueDefined = previous[key] !== undefined;\n        var isNextValueDefined = nextWithNumbers[key] !== undefined;\n\n        if (isPreviousValueDefined && !isNextValueDefined) {\n          return omit(previous, [key]);\n        }\n\n        if (isNextValueDefined) {\n          previous[key] = nextWithNumbers[key];\n        }\n\n        return previous;\n      },\n      previousPlainObject\n    );\n\n    return new this.constructor(nextPlainObject);\n  },\n\n  /**\n   * Returns a new instance with the page reset. Two scenarios possible:\n   * the page is omitted -> return the given instance\n   * the page is set -> return a new instance with a page of 0\n   * @return {SearchParameters} a new updated instance\n   */\n  resetPage: function() {\n    if (this.page === undefined) {\n      return this;\n    }\n\n    return this.setPage(0);\n  },\n\n  /**\n   * Helper function to get the hierarchicalFacet separator or the default one (`>`)\n   * @param  {object} hierarchicalFacet\n   * @return {string} returns the hierarchicalFacet.separator or `>` as default\n   */\n  _getHierarchicalFacetSortBy: function(hierarchicalFacet) {\n    return hierarchicalFacet.sortBy || ['isRefined:desc', 'name:asc'];\n  },\n\n  /**\n   * Helper function to get the hierarchicalFacet separator or the default one (`>`)\n   * @private\n   * @param  {object} hierarchicalFacet\n   * @return {string} returns the hierarchicalFacet.separator or `>` as default\n   */\n  _getHierarchicalFacetSeparator: function(hierarchicalFacet) {\n    return hierarchicalFacet.separator || ' > ';\n  },\n\n  /**\n   * Helper function to get the hierarchicalFacet prefix path or null\n   * @private\n   * @param  {object} hierarchicalFacet\n   * @return {string} returns the hierarchicalFacet.rootPath or null as default\n   */\n  _getHierarchicalRootPath: function(hierarchicalFacet) {\n    return hierarchicalFacet.rootPath || null;\n  },\n\n  /**\n   * Helper function to check if we show the parent level of the hierarchicalFacet\n   * @private\n   * @param  {object} hierarchicalFacet\n   * @return {string} returns the hierarchicalFacet.showParentLevel or true as default\n   */\n  _getHierarchicalShowParentLevel: function(hierarchicalFacet) {\n    if (typeof hierarchicalFacet.showParentLevel === 'boolean') {\n      return hierarchicalFacet.showParentLevel;\n    }\n    return true;\n  },\n\n  /**\n   * Helper function to get the hierarchicalFacet by it's name\n   * @param  {string} hierarchicalFacetName\n   * @return {object} a hierarchicalFacet\n   */\n  getHierarchicalFacetByName: function(hierarchicalFacetName) {\n    return find(\n      this.hierarchicalFacets,\n      function(f) {\n        return f.name === hierarchicalFacetName;\n      }\n    );\n  },\n\n  /**\n   * Get the current breadcrumb for a hierarchical facet, as an array\n   * @param  {string} facetName Hierarchical facet name\n   * @return {array.<string>} the path as an array of string\n   */\n  getHierarchicalFacetBreadcrumb: function(facetName) {\n    if (!this.isHierarchicalFacet(facetName)) {\n      return [];\n    }\n\n    var refinement = this.getHierarchicalRefinement(facetName)[0];\n    if (!refinement) return [];\n\n    var separator = this._getHierarchicalFacetSeparator(\n      this.getHierarchicalFacetByName(facetName)\n    );\n    var path = refinement.split(separator);\n    return path.map(function(part) {\n      return part.trim();\n    });\n  },\n\n  toString: function() {\n    return JSON.stringify(this, null, 2);\n  }\n};\n\n/**\n * Callback used for clearRefinement method\n * @callback SearchParameters.clearCallback\n * @param {OperatorList|FacetList} value the value of the filter\n * @param {string} key the current attribute name\n * @param {string} type `numeric`, `disjunctiveFacet`, `conjunctiveFacet`, `hierarchicalFacet` or `exclude`\n * depending on the type of facet\n * @return {boolean} `true` if the element should be removed. `false` otherwise.\n */\nmodule.exports = SearchParameters;\n",
    "'use strict';\n\nmodule.exports = generateTrees;\n\nvar orderBy = require('../functions/orderBy');\nvar find = require('../functions/find');\nvar prepareHierarchicalFacetSortBy = require('../functions/formatSort');\n\nfunction generateTrees(state) {\n  return function generate(hierarchicalFacetResult, hierarchicalFacetIndex) {\n    var hierarchicalFacet = state.hierarchicalFacets[hierarchicalFacetIndex];\n    var hierarchicalFacetRefinement =\n      (state.hierarchicalFacetsRefinements[hierarchicalFacet.name] &&\n        state.hierarchicalFacetsRefinements[hierarchicalFacet.name][0]) ||\n      '';\n    var hierarchicalSeparator = state._getHierarchicalFacetSeparator(\n      hierarchicalFacet\n    );\n    var hierarchicalRootPath = state._getHierarchicalRootPath(\n      hierarchicalFacet\n    );\n    var hierarchicalShowParentLevel = state._getHierarchicalShowParentLevel(\n      hierarchicalFacet\n    );\n    var sortBy = prepareHierarchicalFacetSortBy(\n      state._getHierarchicalFacetSortBy(hierarchicalFacet)\n    );\n\n    var rootExhaustive = hierarchicalFacetResult.every(function(facetResult) {\n      return facetResult.exhaustive;\n    });\n\n    var generateTreeFn = generateHierarchicalTree(\n      sortBy,\n      hierarchicalSeparator,\n      hierarchicalRootPath,\n      hierarchicalShowParentLevel,\n      hierarchicalFacetRefinement\n    );\n\n    var results = hierarchicalFacetResult;\n\n    if (hierarchicalRootPath) {\n      results = hierarchicalFacetResult.slice(\n        hierarchicalRootPath.split(hierarchicalSeparator).length\n      );\n    }\n\n    return results.reduce(generateTreeFn, {\n      name: state.hierarchicalFacets[hierarchicalFacetIndex].name,\n      count: null, // root level, no count\n      isRefined: true, // root level, always refined\n      path: null, // root level, no path\n      exhaustive: rootExhaustive,\n      data: null\n    });\n  };\n}\n\nfunction generateHierarchicalTree(\n  sortBy,\n  hierarchicalSeparator,\n  hierarchicalRootPath,\n  hierarchicalShowParentLevel,\n  currentRefinement\n) {\n  return function generateTree(\n    hierarchicalTree,\n    hierarchicalFacetResult,\n    currentHierarchicalLevel\n  ) {\n    var parent = hierarchicalTree;\n\n    if (currentHierarchicalLevel > 0) {\n      var level = 0;\n\n      parent = hierarchicalTree;\n\n      while (level < currentHierarchicalLevel) {\n        /**\n         * @type {object[]]} hierarchical data\n         */\n        var data = parent && Array.isArray(parent.data) ? parent.data : [];\n        parent = find(data, function(subtree) {\n          return subtree.isRefined;\n        });\n        level++;\n      }\n    }\n\n    // we found a refined parent, let's add current level data under it\n    if (parent) {\n      // filter values in case an object has multiple categories:\n      //   {\n      //     categories: {\n      //       level0: ['beers', 'bières'],\n      //       level1: ['beers > IPA', 'bières > Belges']\n      //     }\n      //   }\n      //\n      // If parent refinement is `beers`, then we do not want to have `bières > Belges`\n      // showing up\n\n      var picked = Object.keys(hierarchicalFacetResult.data)\n        .map(function(facetValue) {\n          return [facetValue, hierarchicalFacetResult.data[facetValue]];\n        })\n        .filter(function(tuple) {\n          var facetValue = tuple[0];\n          return onlyMatchingTree(\n            facetValue,\n            parent.path || hierarchicalRootPath,\n            currentRefinement,\n            hierarchicalSeparator,\n            hierarchicalRootPath,\n            hierarchicalShowParentLevel\n          );\n        });\n\n      parent.data = orderBy(\n        picked.map(function(tuple) {\n          var facetValue = tuple[0];\n          var facetCount = tuple[1];\n\n          return format(\n            facetCount,\n            facetValue,\n            hierarchicalSeparator,\n            currentRefinement,\n            hierarchicalFacetResult.exhaustive\n          );\n        }),\n        sortBy[0],\n        sortBy[1]\n      );\n    }\n\n    return hierarchicalTree;\n  };\n}\n\nfunction onlyMatchingTree(\n  facetValue,\n  parentPath,\n  currentRefinement,\n  hierarchicalSeparator,\n  hierarchicalRootPath,\n  hierarchicalShowParentLevel\n) {\n  // we want the facetValue is a child of hierarchicalRootPath\n  if (\n    hierarchicalRootPath &&\n    (facetValue.indexOf(hierarchicalRootPath) !== 0 ||\n      hierarchicalRootPath === facetValue)\n  ) {\n    return false;\n  }\n\n  // we always want root levels (only when there is no prefix path)\n  return (\n    (!hierarchicalRootPath &&\n      facetValue.indexOf(hierarchicalSeparator) === -1) ||\n    // if there is a rootPath, being root level mean 1 level under rootPath\n    (hierarchicalRootPath &&\n      facetValue.split(hierarchicalSeparator).length -\n        hierarchicalRootPath.split(hierarchicalSeparator).length ===\n        1) ||\n    // if current refinement is a root level and current facetValue is a root level,\n    // keep the facetValue\n    (facetValue.indexOf(hierarchicalSeparator) === -1 &&\n      currentRefinement.indexOf(hierarchicalSeparator) === -1) ||\n    // currentRefinement is a child of the facet value\n    currentRefinement.indexOf(facetValue) === 0 ||\n    // facetValue is a child of the current parent, add it\n    (facetValue.indexOf(parentPath + hierarchicalSeparator) === 0 &&\n      (hierarchicalShowParentLevel ||\n        facetValue.indexOf(currentRefinement) === 0))\n  );\n}\n\nfunction format(\n  facetCount,\n  facetValue,\n  hierarchicalSeparator,\n  currentRefinement,\n  exhaustive\n) {\n  var parts = facetValue.split(hierarchicalSeparator);\n  return {\n    name: parts[parts.length - 1].trim(),\n    path: facetValue,\n    count: facetCount,\n    isRefined:\n      currentRefinement === facetValue ||\n      currentRefinement.indexOf(facetValue + hierarchicalSeparator) === 0,\n    exhaustive: exhaustive,\n    data: null\n  };\n}\n",
    "'use strict';\n\nvar merge = require('../functions/merge');\nvar defaultsPure = require('../functions/defaultsPure');\nvar orderBy = require('../functions/orderBy');\nvar compact = require('../functions/compact');\nvar find = require('../functions/find');\nvar findIndex = require('../functions/findIndex');\nvar formatSort = require('../functions/formatSort');\n\nvar generateHierarchicalTree = require('./generate-hierarchical-tree');\n\n/**\n * @typedef SearchResults.Facet\n * @type {object}\n * @property {string} name name of the attribute in the record\n * @property {object} data the faceting data: value, number of entries\n * @property {object} stats undefined unless facet_stats is retrieved from algolia\n */\n\n/**\n * @typedef SearchResults.HierarchicalFacet\n * @type {object}\n * @property {string} name name of the current value given the hierarchical level, trimmed.\n * If root node, you get the facet name\n * @property {number} count number of objects matching this hierarchical value\n * @property {string} path the current hierarchical value full path\n * @property {boolean} isRefined `true` if the current value was refined, `false` otherwise\n * @property {HierarchicalFacet[]} data sub values for the current level\n */\n\n/**\n * @typedef SearchResults.FacetValue\n * @type {object}\n * @property {string} name the facet value itself\n * @property {number} count times this facet appears in the results\n * @property {boolean} isRefined is the facet currently selected\n * @property {boolean} isExcluded is the facet currently excluded (only for conjunctive facets)\n */\n\n/**\n * @typedef Refinement\n * @type {object}\n * @property {string} type the type of filter used:\n * `numeric`, `facet`, `exclude`, `disjunctive`, `hierarchical`\n * @property {string} attributeName name of the attribute used for filtering\n * @property {string} name the value of the filter\n * @property {number} numericValue the value as a number. Only for numeric filters.\n * @property {string} operator the operator used. Only for numeric filters.\n * @property {number} count the number of computed hits for this filter. Only on facets.\n * @property {boolean} exhaustive if the count is exhaustive\n */\n\n/**\n * @param {string[]} attributes\n */\nfunction getIndices(attributes) {\n  var indices = {};\n\n  attributes.forEach(function(val, idx) {\n    indices[val] = idx;\n  });\n\n  return indices;\n}\n\nfunction assignFacetStats(dest, facetStats, key) {\n  if (facetStats && facetStats[key]) {\n    dest.stats = facetStats[key];\n  }\n}\n\n/**\n * @typedef {Object} HierarchicalFacet\n * @property {string} name\n * @property {string[]} attributes\n */\n\n/**\n * @param {HierarchicalFacet[]} hierarchicalFacets\n * @param {string} hierarchicalAttributeName\n */\nfunction findMatchingHierarchicalFacetFromAttributeName(\n  hierarchicalFacets,\n  hierarchicalAttributeName\n) {\n  return find(hierarchicalFacets, function facetKeyMatchesAttribute(\n    hierarchicalFacet\n  ) {\n    var facetNames = hierarchicalFacet.attributes || [];\n    return facetNames.indexOf(hierarchicalAttributeName) > -1;\n  });\n}\n\n/*eslint-disable */\n/**\n * Constructor for SearchResults\n * @class\n * @classdesc SearchResults contains the results of a query to Algolia using the\n * {@link AlgoliaSearchHelper}.\n * @param {SearchParameters} state state that led to the response\n * @param {array.<object>} results the results from algolia client\n * @example <caption>SearchResults of the first query in\n * <a href=\"http://demos.algolia.com/instant-search-demo\">the instant search demo</a></caption>\n{\n   \"hitsPerPage\": 10,\n   \"processingTimeMS\": 2,\n   \"facets\": [\n      {\n         \"name\": \"type\",\n         \"data\": {\n            \"HardGood\": 6627,\n            \"BlackTie\": 550,\n            \"Music\": 665,\n            \"Software\": 131,\n            \"Game\": 456,\n            \"Movie\": 1571\n         },\n         \"exhaustive\": false\n      },\n      {\n         \"exhaustive\": false,\n         \"data\": {\n            \"Free shipping\": 5507\n         },\n         \"name\": \"shipping\"\n      }\n  ],\n   \"hits\": [\n      {\n         \"thumbnailImage\": \"http://img.bbystatic.com/BestBuy_US/images/products/1688/1688832_54x108_s.gif\",\n         \"_highlightResult\": {\n            \"shortDescription\": {\n               \"matchLevel\": \"none\",\n               \"value\": \"Safeguard your PC, Mac, Android and iOS devices with comprehensive Internet protection\",\n               \"matchedWords\": []\n            },\n            \"category\": {\n               \"matchLevel\": \"none\",\n               \"value\": \"Computer Security Software\",\n               \"matchedWords\": []\n            },\n            \"manufacturer\": {\n               \"matchedWords\": [],\n               \"value\": \"Webroot\",\n               \"matchLevel\": \"none\"\n            },\n            \"name\": {\n               \"value\": \"Webroot SecureAnywhere Internet Security (3-Device) (1-Year Subscription) - Mac/Windows\",\n               \"matchedWords\": [],\n               \"matchLevel\": \"none\"\n            }\n         },\n         \"image\": \"http://img.bbystatic.com/BestBuy_US/images/products/1688/1688832_105x210_sc.jpg\",\n         \"shipping\": \"Free shipping\",\n         \"bestSellingRank\": 4,\n         \"shortDescription\": \"Safeguard your PC, Mac, Android and iOS devices with comprehensive Internet protection\",\n         \"url\": \"http://www.bestbuy.com/site/webroot-secureanywhere-internet-security-3-devi…d=1219060687969&skuId=1688832&cmp=RMX&ky=2d3GfEmNIzjA0vkzveHdZEBgpPCyMnLTJ\",\n         \"name\": \"Webroot SecureAnywhere Internet Security (3-Device) (1-Year Subscription) - Mac/Windows\",\n         \"category\": \"Computer Security Software\",\n         \"salePrice_range\": \"1 - 50\",\n         \"objectID\": \"1688832\",\n         \"type\": \"Software\",\n         \"customerReviewCount\": 5980,\n         \"salePrice\": 49.99,\n         \"manufacturer\": \"Webroot\"\n      },\n      ....\n  ],\n   \"nbHits\": 10000,\n   \"disjunctiveFacets\": [\n      {\n         \"exhaustive\": false,\n         \"data\": {\n            \"5\": 183,\n            \"12\": 112,\n            \"7\": 149,\n            ...\n         },\n         \"name\": \"customerReviewCount\",\n         \"stats\": {\n            \"max\": 7461,\n            \"avg\": 157.939,\n            \"min\": 1\n         }\n      },\n      {\n         \"data\": {\n            \"Printer Ink\": 142,\n            \"Wireless Speakers\": 60,\n            \"Point & Shoot Cameras\": 48,\n            ...\n         },\n         \"name\": \"category\",\n         \"exhaustive\": false\n      },\n      {\n         \"exhaustive\": false,\n         \"data\": {\n            \"> 5000\": 2,\n            \"1 - 50\": 6524,\n            \"501 - 2000\": 566,\n            \"201 - 500\": 1501,\n            \"101 - 200\": 1360,\n            \"2001 - 5000\": 47\n         },\n         \"name\": \"salePrice_range\"\n      },\n      {\n         \"data\": {\n            \"Dynex™\": 202,\n            \"Insignia™\": 230,\n            \"PNY\": 72,\n            ...\n         },\n         \"name\": \"manufacturer\",\n         \"exhaustive\": false\n      }\n  ],\n   \"query\": \"\",\n   \"nbPages\": 100,\n   \"page\": 0,\n   \"index\": \"bestbuy\"\n}\n **/\n/*eslint-enable */\nfunction SearchResults(state, results) {\n  var mainSubResponse = results[0];\n\n  this._rawResults = results;\n\n  /**\n   * query used to generate the results\n   * @member {string}\n   */\n  this.query = mainSubResponse.query;\n  /**\n   * The query as parsed by the engine given all the rules.\n   * @member {string}\n   */\n  this.parsedQuery = mainSubResponse.parsedQuery;\n  /**\n   * all the records that match the search parameters. Each record is\n   * augmented with a new attribute `_highlightResult`\n   * which is an object keyed by attribute and with the following properties:\n   *  - `value` : the value of the facet highlighted (html)\n   *  - `matchLevel`: full, partial or none depending on how the query terms match\n   * @member {object[]}\n   */\n  this.hits = mainSubResponse.hits;\n  /**\n   * index where the results come from\n   * @member {string}\n   */\n  this.index = mainSubResponse.index;\n  /**\n   * number of hits per page requested\n   * @member {number}\n   */\n  this.hitsPerPage = mainSubResponse.hitsPerPage;\n  /**\n   * total number of hits of this query on the index\n   * @member {number}\n   */\n  this.nbHits = mainSubResponse.nbHits;\n  /**\n   * total number of pages with respect to the number of hits per page and the total number of hits\n   * @member {number}\n   */\n  this.nbPages = mainSubResponse.nbPages;\n  /**\n   * current page\n   * @member {number}\n   */\n  this.page = mainSubResponse.page;\n  /**\n   * sum of the processing time of all the queries\n   * @member {number}\n   */\n  this.processingTimeMS = results.reduce(function(sum, result) {\n    return result.processingTimeMS === undefined\n      ? sum\n      : sum + result.processingTimeMS;\n  }, 0);\n  /**\n   * The position if the position was guessed by IP.\n   * @member {string}\n   * @example \"48.8637,2.3615\",\n   */\n  this.aroundLatLng = mainSubResponse.aroundLatLng;\n  /**\n   * The radius computed by Algolia.\n   * @member {string}\n   * @example \"126792922\",\n   */\n  this.automaticRadius = mainSubResponse.automaticRadius;\n  /**\n   * String identifying the server used to serve this request.\n   *\n   * getRankingInfo needs to be set to `true` for this to be returned\n   *\n   * @member {string}\n   * @example \"c7-use-2.algolia.net\",\n   */\n  this.serverUsed = mainSubResponse.serverUsed;\n  /**\n   * Boolean that indicates if the computation of the counts did time out.\n   * @deprecated\n   * @member {boolean}\n   */\n  this.timeoutCounts = mainSubResponse.timeoutCounts;\n  /**\n   * Boolean that indicates if the computation of the hits did time out.\n   * @deprecated\n   * @member {boolean}\n   */\n  this.timeoutHits = mainSubResponse.timeoutHits;\n\n  /**\n   * True if the counts of the facets is exhaustive\n   * @member {boolean}\n   */\n  this.exhaustiveFacetsCount = mainSubResponse.exhaustiveFacetsCount;\n\n  /**\n   * True if the number of hits is exhaustive\n   * @member {boolean}\n   */\n  this.exhaustiveNbHits = mainSubResponse.exhaustiveNbHits;\n\n\n  /**\n   * Contains the userData if they are set by a [query rule](https://www.algolia.com/doc/guides/query-rules/query-rules-overview/).\n   * @member {object[]}\n   */\n  this.userData = mainSubResponse.userData;\n\n  /**\n   * queryID is the unique identifier of the query used to generate the current search results.\n   * This value is only available if the `clickAnalytics` search parameter is set to `true`.\n   * @member {string}\n   */\n  this.queryID = mainSubResponse.queryID;\n\n  /**\n   * disjunctive facets results\n   * @member {SearchResults.Facet[]}\n   */\n  this.disjunctiveFacets = [];\n  /**\n   * disjunctive facets results\n   * @member {SearchResults.HierarchicalFacet[]}\n   */\n  this.hierarchicalFacets = state.hierarchicalFacets.map(function initFutureTree() {\n    return [];\n  });\n  /**\n   * other facets results\n   * @member {SearchResults.Facet[]}\n   */\n  this.facets = [];\n\n  var disjunctiveFacets = state.getRefinedDisjunctiveFacets();\n\n  var facetsIndices = getIndices(state.facets);\n  var disjunctiveFacetsIndices = getIndices(state.disjunctiveFacets);\n  var nextDisjunctiveResult = 1;\n\n  var self = this;\n  // Since we send request only for disjunctive facets that have been refined,\n  // we get the facets information from the first, general, response.\n\n  var mainFacets = mainSubResponse.facets || {};\n\n  Object.keys(mainFacets).forEach(function(facetKey) {\n    var facetValueObject = mainFacets[facetKey];\n\n    var hierarchicalFacet = findMatchingHierarchicalFacetFromAttributeName(\n      state.hierarchicalFacets,\n      facetKey\n    );\n\n    if (hierarchicalFacet) {\n      // Place the hierarchicalFacet data at the correct index depending on\n      // the attributes order that was defined at the helper initialization\n      var facetIndex = hierarchicalFacet.attributes.indexOf(facetKey);\n      var idxAttributeName = findIndex(state.hierarchicalFacets, function(f) {\n        return f.name === hierarchicalFacet.name;\n      });\n      self.hierarchicalFacets[idxAttributeName][facetIndex] = {\n        attribute: facetKey,\n        data: facetValueObject,\n        exhaustive: mainSubResponse.exhaustiveFacetsCount\n      };\n    } else {\n      var isFacetDisjunctive = state.disjunctiveFacets.indexOf(facetKey) !== -1;\n      var isFacetConjunctive = state.facets.indexOf(facetKey) !== -1;\n      var position;\n\n      if (isFacetDisjunctive) {\n        position = disjunctiveFacetsIndices[facetKey];\n        self.disjunctiveFacets[position] = {\n          name: facetKey,\n          data: facetValueObject,\n          exhaustive: mainSubResponse.exhaustiveFacetsCount\n        };\n        assignFacetStats(self.disjunctiveFacets[position], mainSubResponse.facets_stats, facetKey);\n      }\n      if (isFacetConjunctive) {\n        position = facetsIndices[facetKey];\n        self.facets[position] = {\n          name: facetKey,\n          data: facetValueObject,\n          exhaustive: mainSubResponse.exhaustiveFacetsCount\n        };\n        assignFacetStats(self.facets[position], mainSubResponse.facets_stats, facetKey);\n      }\n    }\n  });\n\n  // Make sure we do not keep holes within the hierarchical facets\n  this.hierarchicalFacets = compact(this.hierarchicalFacets);\n\n  // aggregate the refined disjunctive facets\n  disjunctiveFacets.forEach(function(disjunctiveFacet) {\n    var result = results[nextDisjunctiveResult];\n    var facets = result && result.facets ? result.facets : {};\n    var hierarchicalFacet = state.getHierarchicalFacetByName(disjunctiveFacet);\n\n    // There should be only item in facets.\n    Object.keys(facets).forEach(function(dfacet) {\n      var facetResults = facets[dfacet];\n\n      var position;\n\n      if (hierarchicalFacet) {\n        position = findIndex(state.hierarchicalFacets, function(f) {\n          return f.name === hierarchicalFacet.name;\n        });\n        var attributeIndex = findIndex(self.hierarchicalFacets[position], function(f) {\n          return f.attribute === dfacet;\n        });\n\n        // previous refinements and no results so not able to find it\n        if (attributeIndex === -1) {\n          return;\n        }\n\n        self.hierarchicalFacets[position][attributeIndex].data = merge(\n          {},\n          self.hierarchicalFacets[position][attributeIndex].data,\n          facetResults\n        );\n      } else {\n        position = disjunctiveFacetsIndices[dfacet];\n\n        var dataFromMainRequest = mainSubResponse.facets && mainSubResponse.facets[dfacet] || {};\n\n        self.disjunctiveFacets[position] = {\n          name: dfacet,\n          data: defaultsPure({}, facetResults, dataFromMainRequest),\n          exhaustive: result.exhaustiveFacetsCount\n        };\n        assignFacetStats(self.disjunctiveFacets[position], result.facets_stats, dfacet);\n\n        if (state.disjunctiveFacetsRefinements[dfacet]) {\n          state.disjunctiveFacetsRefinements[dfacet].forEach(function(refinementValue) {\n            // add the disjunctive refinements if it is no more retrieved\n            if (!self.disjunctiveFacets[position].data[refinementValue] &&\n              state.disjunctiveFacetsRefinements[dfacet].indexOf(refinementValue) > -1) {\n              self.disjunctiveFacets[position].data[refinementValue] = 0;\n            }\n          });\n        }\n      }\n    });\n    nextDisjunctiveResult++;\n  });\n\n  // if we have some root level values for hierarchical facets, merge them\n  state.getRefinedHierarchicalFacets().forEach(function(refinedFacet) {\n    var hierarchicalFacet = state.getHierarchicalFacetByName(refinedFacet);\n    var separator = state._getHierarchicalFacetSeparator(hierarchicalFacet);\n\n    var currentRefinement = state.getHierarchicalRefinement(refinedFacet);\n    // if we are already at a root refinement (or no refinement at all), there is no\n    // root level values request\n    if (currentRefinement.length === 0 || currentRefinement[0].split(separator).length < 2) {\n      return;\n    }\n\n    var result = results[nextDisjunctiveResult];\n    var facets = result && result.facets\n      ? result.facets\n      : {};\n    Object.keys(facets).forEach(function(dfacet) {\n      var facetResults = facets[dfacet];\n      var position = findIndex(state.hierarchicalFacets, function(f) {\n        return f.name === hierarchicalFacet.name;\n      });\n      var attributeIndex = findIndex(self.hierarchicalFacets[position], function(f) {\n        return f.attribute === dfacet;\n      });\n\n      // previous refinements and no results so not able to find it\n      if (attributeIndex === -1) {\n        return;\n      }\n\n      // when we always get root levels, if the hits refinement is `beers > IPA` (count: 5),\n      // then the disjunctive values will be `beers` (count: 100),\n      // but we do not want to display\n      //   | beers (100)\n      //     > IPA (5)\n      // We want\n      //   | beers (5)\n      //     > IPA (5)\n      var defaultData = {};\n\n      if (currentRefinement.length > 0) {\n        var root = currentRefinement[0].split(separator)[0];\n        defaultData[root] = self.hierarchicalFacets[position][attributeIndex].data[root];\n      }\n\n      self.hierarchicalFacets[position][attributeIndex].data = defaultsPure(\n        defaultData,\n        facetResults,\n        self.hierarchicalFacets[position][attributeIndex].data\n      );\n    });\n\n    nextDisjunctiveResult++;\n  });\n\n  // add the excludes\n  Object.keys(state.facetsExcludes).forEach(function(facetName) {\n    var excludes = state.facetsExcludes[facetName];\n    var position = facetsIndices[facetName];\n\n    self.facets[position] = {\n      name: facetName,\n      data: mainSubResponse.facets[facetName],\n      exhaustive: mainSubResponse.exhaustiveFacetsCount\n    };\n    excludes.forEach(function(facetValue) {\n      self.facets[position] = self.facets[position] || {name: facetName};\n      self.facets[position].data = self.facets[position].data || {};\n      self.facets[position].data[facetValue] = 0;\n    });\n  });\n\n  /**\n   * @type {Array}\n   */\n  this.hierarchicalFacets = this.hierarchicalFacets.map(generateHierarchicalTree(state));\n\n  /**\n   * @type {Array}\n   */\n  this.facets = compact(this.facets);\n  /**\n   * @type {Array}\n   */\n  this.disjunctiveFacets = compact(this.disjunctiveFacets);\n\n  this._state = state;\n}\n\n/**\n * Get a facet object with its name\n * @deprecated\n * @param {string} name name of the faceted attribute\n * @return {SearchResults.Facet} the facet object\n */\nSearchResults.prototype.getFacetByName = function(name) {\n  function predicate(facet) {\n    return facet.name === name;\n  }\n\n  return find(this.facets, predicate) ||\n    find(this.disjunctiveFacets, predicate) ||\n    find(this.hierarchicalFacets, predicate);\n};\n\n/**\n * Get the facet values of a specified attribute from a SearchResults object.\n * @private\n * @param {SearchResults} results the search results to search in\n * @param {string} attribute name of the faceted attribute to search for\n * @return {array|object} facet values. For the hierarchical facets it is an object.\n */\nfunction extractNormalizedFacetValues(results, attribute) {\n  function predicate(facet) {\n    return facet.name === attribute;\n  }\n\n  if (results._state.isConjunctiveFacet(attribute)) {\n    var facet = find(results.facets, predicate);\n    if (!facet) return [];\n\n    return Object.keys(facet.data).map(function(name) {\n      return {\n        name: name,\n        count: facet.data[name],\n        isRefined: results._state.isFacetRefined(attribute, name),\n        isExcluded: results._state.isExcludeRefined(attribute, name)\n      };\n    });\n  } else if (results._state.isDisjunctiveFacet(attribute)) {\n    var disjunctiveFacet = find(results.disjunctiveFacets, predicate);\n    if (!disjunctiveFacet) return [];\n\n    return Object.keys(disjunctiveFacet.data).map(function(name) {\n      return {\n        name: name,\n        count: disjunctiveFacet.data[name],\n        isRefined: results._state.isDisjunctiveFacetRefined(attribute, name)\n      };\n    });\n  } else if (results._state.isHierarchicalFacet(attribute)) {\n    return find(results.hierarchicalFacets, predicate);\n  }\n}\n\n/**\n * Sort nodes of a hierarchical facet results\n * @private\n * @param {HierarchicalFacet} node node to upon which we want to apply the sort\n */\nfunction recSort(sortFn, node) {\n  if (!node.data || node.data.length === 0) {\n    return node;\n  }\n\n  var children = node.data.map(function(childNode) {\n    return recSort(sortFn, childNode);\n  });\n  var sortedChildren = sortFn(children);\n  var newNode = merge({}, node, {data: sortedChildren});\n  return newNode;\n}\n\nSearchResults.DEFAULT_SORT = ['isRefined:desc', 'count:desc', 'name:asc'];\n\nfunction vanillaSortFn(order, data) {\n  return data.sort(order);\n}\n\n/**\n * Get a the list of values for a given facet attribute. Those values are sorted\n * refinement first, descending count (bigger value on top), and name ascending\n * (alphabetical order). The sort formula can overridden using either string based\n * predicates or a function.\n *\n * This method will return all the values returned by the Algolia engine plus all\n * the values already refined. This means that it can happen that the\n * `maxValuesPerFacet` [configuration](https://www.algolia.com/doc/rest-api/search#param-maxValuesPerFacet)\n * might not be respected if you have facet values that are already refined.\n * @param {string} attribute attribute name\n * @param {object} opts configuration options.\n * @param {Array.<string> | function} opts.sortBy\n * When using strings, it consists of\n * the name of the [FacetValue](#SearchResults.FacetValue) or the\n * [HierarchicalFacet](#SearchResults.HierarchicalFacet) attributes with the\n * order (`asc` or `desc`). For example to order the value by count, the\n * argument would be `['count:asc']`.\n *\n * If only the attribute name is specified, the ordering defaults to the one\n * specified in the default value for this attribute.\n *\n * When not specified, the order is\n * ascending.  This parameter can also be a function which takes two facet\n * values and should return a number, 0 if equal, 1 if the first argument is\n * bigger or -1 otherwise.\n *\n * The default value for this attribute `['isRefined:desc', 'count:desc', 'name:asc']`\n * @return {FacetValue[]|HierarchicalFacet|undefined} depending on the type of facet of\n * the attribute requested (hierarchical, disjunctive or conjunctive)\n * @example\n * helper.on('result', function(event){\n *   //get values ordered only by name ascending using the string predicate\n *   event.results.getFacetValues('city', {sortBy: ['name:asc']});\n *   //get values  ordered only by count ascending using a function\n *   event.results.getFacetValues('city', {\n *     // this is equivalent to ['count:asc']\n *     sortBy: function(a, b) {\n *       if (a.count === b.count) return 0;\n *       if (a.count > b.count)   return 1;\n *       if (b.count > a.count)   return -1;\n *     }\n *   });\n * });\n */\nSearchResults.prototype.getFacetValues = function(attribute, opts) {\n  var facetValues = extractNormalizedFacetValues(this, attribute);\n  if (!facetValues) {\n    return undefined;\n  }\n\n  var options = defaultsPure({}, opts, {sortBy: SearchResults.DEFAULT_SORT});\n\n  if (Array.isArray(options.sortBy)) {\n    var order = formatSort(options.sortBy, SearchResults.DEFAULT_SORT);\n    if (Array.isArray(facetValues)) {\n      return orderBy(facetValues, order[0], order[1]);\n    }\n    // If facetValues is not an array, it's an object thus a hierarchical facet object\n    return recSort(function(hierarchicalFacetValues) {\n      return orderBy(hierarchicalFacetValues, order[0], order[1]);\n    }, facetValues);\n  } else if (typeof options.sortBy === 'function') {\n    if (Array.isArray(facetValues)) {\n      return facetValues.sort(options.sortBy);\n    }\n    // If facetValues is not an array, it's an object thus a hierarchical facet object\n    return recSort(function(data) {\n      return vanillaSortFn(options.sortBy, data);\n    }, facetValues);\n  }\n  throw new Error(\n    'options.sortBy is optional but if defined it must be ' +\n    'either an array of string (predicates) or a sorting function'\n  );\n};\n\n/**\n * Returns the facet stats if attribute is defined and the facet contains some.\n * Otherwise returns undefined.\n * @param {string} attribute name of the faceted attribute\n * @return {object} The stats of the facet\n */\nSearchResults.prototype.getFacetStats = function(attribute) {\n  if (this._state.isConjunctiveFacet(attribute)) {\n    return getFacetStatsIfAvailable(this.facets, attribute);\n  } else if (this._state.isDisjunctiveFacet(attribute)) {\n    return getFacetStatsIfAvailable(this.disjunctiveFacets, attribute);\n  }\n\n  return undefined;\n};\n\n/**\n * @typedef {Object} FacetListItem\n * @property {string} name\n */\n\n/**\n * @param {FacetListItem[]} facetList (has more items, but enough for here)\n * @param {string} facetName\n */\nfunction getFacetStatsIfAvailable(facetList, facetName) {\n  var data = find(facetList, function(facet) {\n    return facet.name === facetName;\n  });\n  return data && data.stats;\n}\n\n/**\n * Returns all refinements for all filters + tags. It also provides\n * additional information: count and exhaustiveness for each filter.\n *\n * See the [refinement type](#Refinement) for an exhaustive view of the available\n * data.\n *\n * Note that for a numeric refinement, results are grouped per operator, this\n * means that it will return responses for operators which are empty.\n *\n * @return {Array.<Refinement>} all the refinements\n */\nSearchResults.prototype.getRefinements = function() {\n  var state = this._state;\n  var results = this;\n  var res = [];\n\n  Object.keys(state.facetsRefinements).forEach(function(attributeName) {\n    state.facetsRefinements[attributeName].forEach(function(name) {\n      res.push(getRefinement(state, 'facet', attributeName, name, results.facets));\n    });\n  });\n\n  Object.keys(state.facetsExcludes).forEach(function(attributeName) {\n    state.facetsExcludes[attributeName].forEach(function(name) {\n      res.push(getRefinement(state, 'exclude', attributeName, name, results.facets));\n    });\n  });\n\n  Object.keys(state.disjunctiveFacetsRefinements).forEach(function(attributeName) {\n    state.disjunctiveFacetsRefinements[attributeName].forEach(function(name) {\n      res.push(getRefinement(state, 'disjunctive', attributeName, name, results.disjunctiveFacets));\n    });\n  });\n\n  Object.keys(state.hierarchicalFacetsRefinements).forEach(function(attributeName) {\n    state.hierarchicalFacetsRefinements[attributeName].forEach(function(name) {\n      res.push(getHierarchicalRefinement(state, attributeName, name, results.hierarchicalFacets));\n    });\n  });\n\n\n  Object.keys(state.numericRefinements).forEach(function(attributeName) {\n    var operators = state.numericRefinements[attributeName];\n    Object.keys(operators).forEach(function(operator) {\n      operators[operator].forEach(function(value) {\n        res.push({\n          type: 'numeric',\n          attributeName: attributeName,\n          name: value,\n          numericValue: value,\n          operator: operator\n        });\n      });\n    });\n  });\n\n  state.tagRefinements.forEach(function(name) {\n    res.push({type: 'tag', attributeName: '_tags', name: name});\n  });\n\n  return res;\n};\n\n/**\n * @typedef {Object} Facet\n * @property {string} name\n * @property {Object} data\n * @property {boolean} exhaustive\n */\n\n/**\n * @param {*} state\n * @param {*} type\n * @param {string} attributeName\n * @param {*} name\n * @param {Facet[]} resultsFacets\n */\nfunction getRefinement(state, type, attributeName, name, resultsFacets) {\n  var facet = find(resultsFacets, function(f) {\n    return f.name === attributeName;\n  });\n  var count = facet && facet.data && facet.data[name] ? facet.data[name] : 0;\n  var exhaustive = (facet && facet.exhaustive) || false;\n\n  return {\n    type: type,\n    attributeName: attributeName,\n    name: name,\n    count: count,\n    exhaustive: exhaustive\n  };\n}\n\n/**\n * @param {*} state\n * @param {string} attributeName\n * @param {*} name\n * @param {Facet[]} resultsFacets\n */\nfunction getHierarchicalRefinement(state, attributeName, name, resultsFacets) {\n  var facetDeclaration = state.getHierarchicalFacetByName(attributeName);\n  var separator = state._getHierarchicalFacetSeparator(facetDeclaration);\n  var split = name.split(separator);\n  var rootFacet = find(resultsFacets, function(facet) {\n    return facet.name === attributeName;\n  });\n\n  var facet = split.reduce(function(intermediateFacet, part) {\n    var newFacet =\n      intermediateFacet && find(intermediateFacet.data, function(f) {\n        return f.name === part;\n      });\n    return newFacet !== undefined ? newFacet : intermediateFacet;\n  }, rootFacet);\n\n  var count = (facet && facet.count) || 0;\n  var exhaustive = (facet && facet.exhaustive) || false;\n  var path = (facet && facet.path) || '';\n\n  return {\n    type: 'hierarchical',\n    attributeName: attributeName,\n    name: path,\n    count: count,\n    exhaustive: exhaustive\n  };\n}\n\nmodule.exports = SearchResults;\n",
    "'use strict';\n\nvar SearchParameters = require('./SearchParameters');\nvar SearchResults = require('./SearchResults');\nvar DerivedHelper = require('./DerivedHelper');\nvar requestBuilder = require('./requestBuilder');\n\nvar events = require('events');\nvar inherits = require('./functions/inherits');\nvar objectHasKeys = require('./functions/objectHasKeys');\n\nvar version = require('./version');\n\n/**\n * Event triggered when a parameter is set or updated\n * @event AlgoliaSearchHelper#event:change\n * @property {object} event\n * @property {SearchParameters} event.state the current parameters with the latest changes applied\n * @property {SearchResults} event.results the previous results received from Algolia. `null` before the first request\n * @example\n * helper.on('change', function(event) {\n *   console.log('The parameters have changed');\n * });\n */\n\n/**\n * Event triggered when a main search is sent to Algolia\n * @event AlgoliaSearchHelper#event:search\n * @property {object} event\n * @property {SearchParameters} event.state the parameters used for this search\n * @property {SearchResults} event.results the results from the previous search. `null` if it is the first search.\n * @example\n * helper.on('search', function(event) {\n *   console.log('Search sent');\n * });\n */\n\n/**\n * Event triggered when a search using `searchForFacetValues` is sent to Algolia\n * @event AlgoliaSearchHelper#event:searchForFacetValues\n * @property {object} event\n * @property {SearchParameters} event.state the parameters used for this search it is the first search.\n * @property {string} event.facet the facet searched into\n * @property {string} event.query the query used to search in the facets\n * @example\n * helper.on('searchForFacetValues', function(event) {\n *   console.log('searchForFacetValues sent');\n * });\n */\n\n/**\n * Event triggered when a search using `searchOnce` is sent to Algolia\n * @event AlgoliaSearchHelper#event:searchOnce\n * @property {object} event\n * @property {SearchParameters} event.state the parameters used for this search it is the first search.\n * @example\n * helper.on('searchOnce', function(event) {\n *   console.log('searchOnce sent');\n * });\n */\n\n/**\n * Event triggered when the results are retrieved from Algolia\n * @event AlgoliaSearchHelper#event:result\n * @property {object} event\n * @property {SearchResults} event.results the results received from Algolia\n * @property {SearchParameters} event.state the parameters used to query Algolia. Those might be different from the one in the helper instance (for example if the network is unreliable).\n * @example\n * helper.on('result', function(event) {\n *   console.log('Search results received');\n * });\n */\n\n/**\n * Event triggered when Algolia sends back an error. For example, if an unknown parameter is\n * used, the error can be caught using this event.\n * @event AlgoliaSearchHelper#event:error\n * @property {object} event\n * @property {Error} event.error the error returned by the Algolia.\n * @example\n * helper.on('error', function(event) {\n *   console.log('Houston we got a problem.');\n * });\n */\n\n/**\n * Event triggered when the queue of queries have been depleted (with any result or outdated queries)\n * @event AlgoliaSearchHelper#event:searchQueueEmpty\n * @example\n * helper.on('searchQueueEmpty', function() {\n *   console.log('No more search pending');\n *   // This is received before the result event if we're not expecting new results\n * });\n *\n * helper.search();\n */\n\n/**\n * Initialize a new AlgoliaSearchHelper\n * @class\n * @classdesc The AlgoliaSearchHelper is a class that ease the management of the\n * search. It provides an event based interface for search callbacks:\n *  - change: when the internal search state is changed.\n *    This event contains a {@link SearchParameters} object and the\n *    {@link SearchResults} of the last result if any.\n *  - search: when a search is triggered using the `search()` method.\n *  - result: when the response is retrieved from Algolia and is processed.\n *    This event contains a {@link SearchResults} object and the\n *    {@link SearchParameters} corresponding to this answer.\n *  - error: when the response is an error. This event contains the error returned by the server.\n * @param  {AlgoliaSearch} client an AlgoliaSearch client\n * @param  {string} index the index name to query\n * @param  {SearchParameters | object} options an object defining the initial\n * config of the search. It doesn't have to be a {SearchParameters},\n * just an object containing the properties you need from it.\n */\nfunction AlgoliaSearchHelper(client, index, options) {\n  if (typeof client.addAlgoliaAgent === 'function') {\n    client.addAlgoliaAgent('JS Helper (' + version + ')');\n  }\n\n  this.setClient(client);\n  var opts = options || {};\n  opts.index = index;\n  this.state = SearchParameters.make(opts);\n  this.lastResults = null;\n  this._queryId = 0;\n  this._lastQueryIdReceived = -1;\n  this.derivedHelpers = [];\n  this._currentNbQueries = 0;\n}\n\ninherits(AlgoliaSearchHelper, events.EventEmitter);\n\n/**\n * Start the search with the parameters set in the state. When the\n * method is called, it triggers a `search` event. The results will\n * be available through the `result` event. If an error occurs, an\n * `error` will be fired instead.\n * @return {AlgoliaSearchHelper}\n * @fires search\n * @fires result\n * @fires error\n * @chainable\n */\nAlgoliaSearchHelper.prototype.search = function() {\n  this._search({onlyWithDerivedHelpers: false});\n  return this;\n};\n\nAlgoliaSearchHelper.prototype.searchOnlyWithDerivedHelpers = function() {\n  this._search({onlyWithDerivedHelpers: true});\n  return this;\n};\n\n/**\n * Gets the search query parameters that would be sent to the Algolia Client\n * for the hits\n * @return {object} Query Parameters\n */\nAlgoliaSearchHelper.prototype.getQuery = function() {\n  var state = this.state;\n  return requestBuilder._getHitsSearchParams(state);\n};\n\n/**\n * Start a search using a modified version of the current state. This method does\n * not trigger the helper lifecycle and does not modify the state kept internally\n * by the helper. This second aspect means that the next search call will be the\n * same as a search call before calling searchOnce.\n * @param {object} options can contain all the parameters that can be set to SearchParameters\n * plus the index\n * @param {function} [callback] optional callback executed when the response from the\n * server is back.\n * @return {promise|undefined} if a callback is passed the method returns undefined\n * otherwise it returns a promise containing an object with two keys :\n *  - content with a SearchResults\n *  - state with the state used for the query as a SearchParameters\n * @example\n * // Changing the number of records returned per page to 1\n * // This example uses the callback API\n * var state = helper.searchOnce({hitsPerPage: 1},\n *   function(error, content, state) {\n *     // if an error occurred it will be passed in error, otherwise its value is null\n *     // content contains the results formatted as a SearchResults\n *     // state is the instance of SearchParameters used for this search\n *   });\n * @example\n * // Changing the number of records returned per page to 1\n * // This example uses the promise API\n * var state1 = helper.searchOnce({hitsPerPage: 1})\n *                 .then(promiseHandler);\n *\n * function promiseHandler(res) {\n *   // res contains\n *   // {\n *   //   content : SearchResults\n *   //   state   : SearchParameters (the one used for this specific search)\n *   // }\n * }\n */\nAlgoliaSearchHelper.prototype.searchOnce = function(options, cb) {\n  var tempState = !options ? this.state : this.state.setQueryParameters(options);\n  var queries = requestBuilder._getQueries(tempState.index, tempState);\n  var self = this;\n\n  this._currentNbQueries++;\n\n  this.emit('searchOnce', {\n    state: tempState\n  });\n\n  if (cb) {\n    this.client\n      .search(queries)\n      .then(function(content) {\n        self._currentNbQueries--;\n        if (self._currentNbQueries === 0) {\n          self.emit('searchQueueEmpty');\n        }\n\n        cb(null, new SearchResults(tempState, content.results), tempState);\n      })\n      .catch(function(err) {\n        self._currentNbQueries--;\n        if (self._currentNbQueries === 0) {\n          self.emit('searchQueueEmpty');\n        }\n\n        cb(err, null, tempState);\n      });\n\n    return undefined;\n  }\n\n  return this.client.search(queries).then(function(content) {\n    self._currentNbQueries--;\n    if (self._currentNbQueries === 0) self.emit('searchQueueEmpty');\n    return {\n      content: new SearchResults(tempState, content.results),\n      state: tempState,\n      _originalResponse: content\n    };\n  }, function(e) {\n    self._currentNbQueries--;\n    if (self._currentNbQueries === 0) self.emit('searchQueueEmpty');\n    throw e;\n  });\n};\n\n/**\n * Structure of each result when using\n * [`searchForFacetValues()`](reference.html#AlgoliaSearchHelper#searchForFacetValues)\n * @typedef FacetSearchHit\n * @type {object}\n * @property {string} value the facet value\n * @property {string} highlighted the facet value highlighted with the query string\n * @property {number} count number of occurrence of this facet value\n * @property {boolean} isRefined true if the value is already refined\n */\n\n/**\n * Structure of the data resolved by the\n * [`searchForFacetValues()`](reference.html#AlgoliaSearchHelper#searchForFacetValues)\n * promise.\n * @typedef FacetSearchResult\n * @type {object}\n * @property {FacetSearchHit} facetHits the results for this search for facet values\n * @property {number} processingTimeMS time taken by the query inside the engine\n */\n\n/**\n * Search for facet values based on an query and the name of a faceted attribute. This\n * triggers a search and will return a promise. On top of using the query, it also sends\n * the parameters from the state so that the search is narrowed down to only the possible values.\n *\n * See the description of [FacetSearchResult](reference.html#FacetSearchResult)\n * @param {string} facet the name of the faceted attribute\n * @param {string} query the string query for the search\n * @param {number} [maxFacetHits] the maximum number values returned. Should be > 0 and <= 100\n * @param {object} [userState] the set of custom parameters to use on top of the current state. Setting a property to `undefined` removes\n * it in the generated query.\n * @return {promise.<FacetSearchResult>} the results of the search\n */\nAlgoliaSearchHelper.prototype.searchForFacetValues = function(facet, query, maxFacetHits, userState) {\n  var clientHasSFFV = typeof this.client.searchForFacetValues === 'function';\n  if (\n    !clientHasSFFV &&\n    typeof this.client.initIndex !== 'function'\n  ) {\n    throw new Error(\n      'search for facet values (searchable) was called, but this client does not have a function client.searchForFacetValues or client.initIndex(index).searchForFacetValues'\n    );\n  }\n  var state = this.state.setQueryParameters(userState || {});\n  var isDisjunctive = state.isDisjunctiveFacet(facet);\n  var algoliaQuery = requestBuilder.getSearchForFacetQuery(facet, query, maxFacetHits, state);\n\n  this._currentNbQueries++;\n  var self = this;\n\n  this.emit('searchForFacetValues', {\n    state: state,\n    facet: facet,\n    query: query\n  });\n\n  var searchForFacetValuesPromise = clientHasSFFV\n    ? this.client.searchForFacetValues([{indexName: state.index, params: algoliaQuery}])\n    : this.client.initIndex(state.index).searchForFacetValues(algoliaQuery);\n\n  return searchForFacetValuesPromise.then(function addIsRefined(content) {\n    self._currentNbQueries--;\n    if (self._currentNbQueries === 0) self.emit('searchQueueEmpty');\n\n    content = Array.isArray(content) ? content[0] : content;\n\n    content.facetHits.forEach(function(f) {\n      f.isRefined = isDisjunctive\n        ? state.isDisjunctiveFacetRefined(facet, f.value)\n        : state.isFacetRefined(facet, f.value);\n    });\n\n    return content;\n  }, function(e) {\n    self._currentNbQueries--;\n    if (self._currentNbQueries === 0) self.emit('searchQueueEmpty');\n    throw e;\n  });\n};\n\n/**\n * Sets the text query used for the search.\n *\n * This method resets the current page to 0.\n * @param  {string} q the user query\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.setQuery = function(q) {\n  this._change({\n    state: this.state.resetPage().setQuery(q),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Remove all the types of refinements except tags. A string can be provided to remove\n * only the refinements of a specific attribute. For more advanced use case, you can\n * provide a function instead. This function should follow the\n * [clearCallback definition](#SearchParameters.clearCallback).\n *\n * This method resets the current page to 0.\n * @param {string} [name] optional name of the facet / attribute on which we want to remove all refinements\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n * @example\n * // Removing all the refinements\n * helper.clearRefinements().search();\n * @example\n * // Removing all the filters on a the category attribute.\n * helper.clearRefinements('category').search();\n * @example\n * // Removing only the exclude filters on the category facet.\n * helper.clearRefinements(function(value, attribute, type) {\n *   return type === 'exclude' && attribute === 'category';\n * }).search();\n */\nAlgoliaSearchHelper.prototype.clearRefinements = function(name) {\n  this._change({\n    state: this.state.resetPage().clearRefinements(name),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Remove all the tag filters.\n *\n * This method resets the current page to 0.\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.clearTags = function() {\n  this._change({\n    state: this.state.resetPage().clearTags(),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Adds a disjunctive filter to a faceted attribute with the `value` provided. If the\n * filter is already set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value (will be converted to string)\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.addDisjunctiveFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().addDisjunctiveFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#addDisjunctiveFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.addDisjunctiveRefine = function() {\n  return this.addDisjunctiveFacetRefinement.apply(this, arguments);\n};\n\n/**\n * Adds a refinement on a hierarchical facet. It will throw\n * an exception if the facet is not defined or if the facet\n * is already refined.\n *\n * This method resets the current page to 0.\n * @param {string} facet the facet name\n * @param {string} path the hierarchical facet path\n * @return {AlgoliaSearchHelper}\n * @throws Error if the facet is not defined or if the facet is refined\n * @chainable\n * @fires change\n */\nAlgoliaSearchHelper.prototype.addHierarchicalFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().addHierarchicalFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Adds a an numeric filter to an attribute with the `operator` and `value` provided. If the\n * filter is already set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param  {string} attribute the attribute on which the numeric filter applies\n * @param  {string} operator the operator of the filter\n * @param  {number} value the value of the filter\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.addNumericRefinement = function(attribute, operator, value) {\n  this._change({\n    state: this.state.resetPage().addNumericRefinement(attribute, operator, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Adds a filter to a faceted attribute with the `value` provided. If the\n * filter is already set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value (will be converted to string)\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.addFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().addFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#addFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.addRefine = function() {\n  return this.addFacetRefinement.apply(this, arguments);\n};\n\n\n/**\n * Adds a an exclusion filter to a faceted attribute with the `value` provided. If the\n * filter is already set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value (will be converted to string)\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.addFacetExclusion = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().addExcludeRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#addFacetExclusion}\n */\nAlgoliaSearchHelper.prototype.addExclude = function() {\n  return this.addFacetExclusion.apply(this, arguments);\n};\n\n/**\n * Adds a tag filter with the `tag` provided. If the\n * filter is already set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param {string} tag the tag to add to the filter\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.addTag = function(tag) {\n  this._change({\n    state: this.state.resetPage().addTagRefinement(tag),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Removes an numeric filter to an attribute with the `operator` and `value` provided. If the\n * filter is not set, it doesn't change the filters.\n *\n * Some parameters are optional, triggering different behavior:\n *  - if the value is not provided, then all the numeric value will be removed for the\n *  specified attribute/operator couple.\n *  - if the operator is not provided either, then all the numeric filter on this attribute\n *  will be removed.\n *\n * This method resets the current page to 0.\n * @param  {string} attribute the attribute on which the numeric filter applies\n * @param  {string} [operator] the operator of the filter\n * @param  {number} [value] the value of the filter\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeNumericRefinement = function(attribute, operator, value) {\n  this._change({\n    state: this.state.resetPage().removeNumericRefinement(attribute, operator, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Removes a disjunctive filter to a faceted attribute with the `value` provided. If the\n * filter is not set, it doesn't change the filters.\n *\n * If the value is omitted, then this method will remove all the filters for the\n * attribute.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} [value] the associated value\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeDisjunctiveFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().removeDisjunctiveFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#removeDisjunctiveFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.removeDisjunctiveRefine = function() {\n  return this.removeDisjunctiveFacetRefinement.apply(this, arguments);\n};\n\n/**\n * Removes the refinement set on a hierarchical facet.\n * @param {string} facet the facet name\n * @return {AlgoliaSearchHelper}\n * @throws Error if the facet is not defined or if the facet is not refined\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeHierarchicalFacetRefinement = function(facet) {\n  this._change({\n    state: this.state.resetPage().removeHierarchicalFacetRefinement(facet),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Removes a filter to a faceted attribute with the `value` provided. If the\n * filter is not set, it doesn't change the filters.\n *\n * If the value is omitted, then this method will remove all the filters for the\n * attribute.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} [value] the associated value\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().removeFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#removeFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.removeRefine = function() {\n  return this.removeFacetRefinement.apply(this, arguments);\n};\n\n/**\n * Removes an exclusion filter to a faceted attribute with the `value` provided. If the\n * filter is not set, it doesn't change the filters.\n *\n * If the value is omitted, then this method will remove all the filters for the\n * attribute.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} [value] the associated value\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeFacetExclusion = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().removeExcludeRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#removeFacetExclusion}\n */\nAlgoliaSearchHelper.prototype.removeExclude = function() {\n  return this.removeFacetExclusion.apply(this, arguments);\n};\n\n/**\n * Removes a tag filter with the `tag` provided. If the\n * filter is not set, it doesn't change the filters.\n *\n * This method resets the current page to 0.\n * @param {string} tag tag to remove from the filter\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.removeTag = function(tag) {\n  this._change({\n    state: this.state.resetPage().removeTagRefinement(tag),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Adds or removes an exclusion filter to a faceted attribute with the `value` provided. If\n * the value is set then it removes it, otherwise it adds the filter.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.toggleFacetExclusion = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().toggleExcludeFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#toggleFacetExclusion}\n */\nAlgoliaSearchHelper.prototype.toggleExclude = function() {\n  return this.toggleFacetExclusion.apply(this, arguments);\n};\n\n/**\n * Adds or removes a filter to a faceted attribute with the `value` provided. If\n * the value is set then it removes it, otherwise it adds the filter.\n *\n * This method can be used for conjunctive, disjunctive and hierarchical filters.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value\n * @return {AlgoliaSearchHelper}\n * @throws Error will throw an error if the facet is not declared in the settings of the helper\n * @fires change\n * @chainable\n * @deprecated since version 2.19.0, see {@link AlgoliaSearchHelper#toggleFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.toggleRefinement = function(facet, value) {\n  return this.toggleFacetRefinement(facet, value);\n};\n\n/**\n * Adds or removes a filter to a faceted attribute with the `value` provided. If\n * the value is set then it removes it, otherwise it adds the filter.\n *\n * This method can be used for conjunctive, disjunctive and hierarchical filters.\n *\n * This method resets the current page to 0.\n * @param  {string} facet the facet to refine\n * @param  {string} value the associated value\n * @return {AlgoliaSearchHelper}\n * @throws Error will throw an error if the facet is not declared in the settings of the helper\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.toggleFacetRefinement = function(facet, value) {\n  this._change({\n    state: this.state.resetPage().toggleFacetRefinement(facet, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * @deprecated since version 2.4.0, see {@link AlgoliaSearchHelper#toggleFacetRefinement}\n */\nAlgoliaSearchHelper.prototype.toggleRefine = function() {\n  return this.toggleFacetRefinement.apply(this, arguments);\n};\n\n/**\n * Adds or removes a tag filter with the `value` provided. If\n * the value is set then it removes it, otherwise it adds the filter.\n *\n * This method resets the current page to 0.\n * @param {string} tag tag to remove or add\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.toggleTag = function(tag) {\n  this._change({\n    state: this.state.resetPage().toggleTagRefinement(tag),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Increments the page number by one.\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n * @example\n * helper.setPage(0).nextPage().getPage();\n * // returns 1\n */\nAlgoliaSearchHelper.prototype.nextPage = function() {\n  var page = this.state.page || 0;\n  return this.setPage(page + 1);\n};\n\n/**\n * Decrements the page number by one.\n * @fires change\n * @return {AlgoliaSearchHelper}\n * @chainable\n * @example\n * helper.setPage(1).previousPage().getPage();\n * // returns 0\n */\nAlgoliaSearchHelper.prototype.previousPage = function() {\n  var page = this.state.page || 0;\n  return this.setPage(page - 1);\n};\n\n/**\n * @private\n */\nfunction setCurrentPage(page) {\n  if (page < 0) throw new Error('Page requested below 0.');\n\n  this._change({\n    state: this.state.setPage(page),\n    isPageReset: false\n  });\n\n  return this;\n}\n\n/**\n * Change the current page\n * @deprecated\n * @param  {number} page The page number\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.setCurrentPage = setCurrentPage;\n\n/**\n * Updates the current page.\n * @function\n * @param  {number} page The page number\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.setPage = setCurrentPage;\n\n/**\n * Updates the name of the index that will be targeted by the query.\n *\n * This method resets the current page to 0.\n * @param {string} name the index name\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.setIndex = function(name) {\n  this._change({\n    state: this.state.resetPage().setIndex(name),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Update a parameter of the search. This method reset the page\n *\n * The complete list of parameters is available on the\n * [Algolia website](https://www.algolia.com/doc/rest#query-an-index).\n * The most commonly used parameters have their own [shortcuts](#query-parameters-shortcuts)\n * or benefit from higher-level APIs (all the kind of filters and facets have their own API)\n *\n * This method resets the current page to 0.\n * @param {string} parameter name of the parameter to update\n * @param {any} value new value of the parameter\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n * @example\n * helper.setQueryParameter('hitsPerPage', 20).search();\n */\nAlgoliaSearchHelper.prototype.setQueryParameter = function(parameter, value) {\n  this._change({\n    state: this.state.resetPage().setQueryParameter(parameter, value),\n    isPageReset: true\n  });\n\n  return this;\n};\n\n/**\n * Set the whole state (warning: will erase previous state)\n * @param {SearchParameters} newState the whole new state\n * @return {AlgoliaSearchHelper}\n * @fires change\n * @chainable\n */\nAlgoliaSearchHelper.prototype.setState = function(newState) {\n  this._change({\n    state: SearchParameters.make(newState),\n    isPageReset: false\n  });\n\n  return this;\n};\n\n/**\n * Override the current state without triggering a change event.\n * Do not use this method unless you know what you are doing. (see the example\n * for a legit use case)\n * @param {SearchParameters} newState the whole new state\n * @return {AlgoliaSearchHelper}\n * @example\n *  helper.on('change', function(state){\n *    // In this function you might want to find a way to store the state in the url/history\n *    updateYourURL(state)\n *  })\n *  window.onpopstate = function(event){\n *    // This is naive though as you should check if the state is really defined etc.\n *    helper.overrideStateWithoutTriggeringChangeEvent(event.state).search()\n *  }\n * @chainable\n */\nAlgoliaSearchHelper.prototype.overrideStateWithoutTriggeringChangeEvent = function(newState) {\n  this.state = new SearchParameters(newState);\n  return this;\n};\n\n/**\n * Check if an attribute has any numeric, conjunctive, disjunctive or hierarchical filters.\n * @param {string} attribute the name of the attribute\n * @return {boolean} true if the attribute is filtered by at least one value\n * @example\n * // hasRefinements works with numeric, conjunctive, disjunctive and hierarchical filters\n * helper.hasRefinements('price'); // false\n * helper.addNumericRefinement('price', '>', 100);\n * helper.hasRefinements('price'); // true\n *\n * helper.hasRefinements('color'); // false\n * helper.addFacetRefinement('color', 'blue');\n * helper.hasRefinements('color'); // true\n *\n * helper.hasRefinements('material'); // false\n * helper.addDisjunctiveFacetRefinement('material', 'plastic');\n * helper.hasRefinements('material'); // true\n *\n * helper.hasRefinements('categories'); // false\n * helper.toggleFacetRefinement('categories', 'kitchen > knife');\n * helper.hasRefinements('categories'); // true\n *\n */\nAlgoliaSearchHelper.prototype.hasRefinements = function(attribute) {\n  if (objectHasKeys(this.state.getNumericRefinements(attribute))) {\n    return true;\n  } else if (this.state.isConjunctiveFacet(attribute)) {\n    return this.state.isFacetRefined(attribute);\n  } else if (this.state.isDisjunctiveFacet(attribute)) {\n    return this.state.isDisjunctiveFacetRefined(attribute);\n  } else if (this.state.isHierarchicalFacet(attribute)) {\n    return this.state.isHierarchicalFacetRefined(attribute);\n  }\n\n  // there's currently no way to know that the user did call `addNumericRefinement` at some point\n  // thus we cannot distinguish if there once was a numeric refinement that was cleared\n  // so we will return false in every other situations to be consistent\n  // while what we should do here is throw because we did not find the attribute in any type\n  // of refinement\n  return false;\n};\n\n/**\n * Check if a value is excluded for a specific faceted attribute. If the value\n * is omitted then the function checks if there is any excluding refinements.\n *\n * @param  {string}  facet name of the attribute for used for faceting\n * @param  {string}  [value] optional value. If passed will test that this value\n   * is filtering the given facet.\n * @return {boolean} true if refined\n * @example\n * helper.isExcludeRefined('color'); // false\n * helper.isExcludeRefined('color', 'blue') // false\n * helper.isExcludeRefined('color', 'red') // false\n *\n * helper.addFacetExclusion('color', 'red');\n *\n * helper.isExcludeRefined('color'); // true\n * helper.isExcludeRefined('color', 'blue') // false\n * helper.isExcludeRefined('color', 'red') // true\n */\nAlgoliaSearchHelper.prototype.isExcluded = function(facet, value) {\n  return this.state.isExcludeRefined(facet, value);\n};\n\n/**\n * @deprecated since 2.4.0, see {@link AlgoliaSearchHelper#hasRefinements}\n */\nAlgoliaSearchHelper.prototype.isDisjunctiveRefined = function(facet, value) {\n  return this.state.isDisjunctiveFacetRefined(facet, value);\n};\n\n/**\n * Check if the string is a currently filtering tag.\n * @param {string} tag tag to check\n * @return {boolean}\n */\nAlgoliaSearchHelper.prototype.hasTag = function(tag) {\n  return this.state.isTagRefined(tag);\n};\n\n/**\n * @deprecated since 2.4.0, see {@link AlgoliaSearchHelper#hasTag}\n */\nAlgoliaSearchHelper.prototype.isTagRefined = function() {\n  return this.hasTagRefinements.apply(this, arguments);\n};\n\n\n/**\n * Get the name of the currently used index.\n * @return {string}\n * @example\n * helper.setIndex('highestPrice_products').getIndex();\n * // returns 'highestPrice_products'\n */\nAlgoliaSearchHelper.prototype.getIndex = function() {\n  return this.state.index;\n};\n\nfunction getCurrentPage() {\n  return this.state.page;\n}\n\n/**\n * Get the currently selected page\n * @deprecated\n * @return {number} the current page\n */\nAlgoliaSearchHelper.prototype.getCurrentPage = getCurrentPage;\n/**\n * Get the currently selected page\n * @function\n * @return {number} the current page\n */\nAlgoliaSearchHelper.prototype.getPage = getCurrentPage;\n\n/**\n * Get all the tags currently set to filters the results.\n *\n * @return {string[]} The list of tags currently set.\n */\nAlgoliaSearchHelper.prototype.getTags = function() {\n  return this.state.tagRefinements;\n};\n\n/**\n * Get the list of refinements for a given attribute. This method works with\n * conjunctive, disjunctive, excluding and numerical filters.\n *\n * See also SearchResults#getRefinements\n *\n * @param {string} facetName attribute name used for faceting\n * @return {Array.<FacetRefinement|NumericRefinement>} All Refinement are objects that contain a value, and\n * a type. Numeric also contains an operator.\n * @example\n * helper.addNumericRefinement('price', '>', 100);\n * helper.getRefinements('price');\n * // [\n * //   {\n * //     \"value\": [\n * //       100\n * //     ],\n * //     \"operator\": \">\",\n * //     \"type\": \"numeric\"\n * //   }\n * // ]\n * @example\n * helper.addFacetRefinement('color', 'blue');\n * helper.addFacetExclusion('color', 'red');\n * helper.getRefinements('color');\n * // [\n * //   {\n * //     \"value\": \"blue\",\n * //     \"type\": \"conjunctive\"\n * //   },\n * //   {\n * //     \"value\": \"red\",\n * //     \"type\": \"exclude\"\n * //   }\n * // ]\n * @example\n * helper.addDisjunctiveFacetRefinement('material', 'plastic');\n * // [\n * //   {\n * //     \"value\": \"plastic\",\n * //     \"type\": \"disjunctive\"\n * //   }\n * // ]\n */\nAlgoliaSearchHelper.prototype.getRefinements = function(facetName) {\n  var refinements = [];\n\n  if (this.state.isConjunctiveFacet(facetName)) {\n    var conjRefinements = this.state.getConjunctiveRefinements(facetName);\n\n    conjRefinements.forEach(function(r) {\n      refinements.push({\n        value: r,\n        type: 'conjunctive'\n      });\n    });\n\n    var excludeRefinements = this.state.getExcludeRefinements(facetName);\n\n    excludeRefinements.forEach(function(r) {\n      refinements.push({\n        value: r,\n        type: 'exclude'\n      });\n    });\n  } else if (this.state.isDisjunctiveFacet(facetName)) {\n    var disjRefinements = this.state.getDisjunctiveRefinements(facetName);\n\n    disjRefinements.forEach(function(r) {\n      refinements.push({\n        value: r,\n        type: 'disjunctive'\n      });\n    });\n  }\n\n  var numericRefinements = this.state.getNumericRefinements(facetName);\n\n  Object.keys(numericRefinements).forEach(function(operator) {\n    var value = numericRefinements[operator];\n\n    refinements.push({\n      value: value,\n      operator: operator,\n      type: 'numeric'\n    });\n  });\n\n  return refinements;\n};\n\n/**\n * Return the current refinement for the (attribute, operator)\n * @param {string} attribute attribute in the record\n * @param {string} operator operator applied on the refined values\n * @return {Array.<number|number[]>} refined values\n */\nAlgoliaSearchHelper.prototype.getNumericRefinement = function(attribute, operator) {\n  return this.state.getNumericRefinement(attribute, operator);\n};\n\n/**\n * Get the current breadcrumb for a hierarchical facet, as an array\n * @param  {string} facetName Hierarchical facet name\n * @return {array.<string>} the path as an array of string\n */\nAlgoliaSearchHelper.prototype.getHierarchicalFacetBreadcrumb = function(facetName) {\n  return this.state.getHierarchicalFacetBreadcrumb(facetName);\n};\n\n// /////////// PRIVATE\n\n/**\n * Perform the underlying queries\n * @private\n * @return {undefined}\n * @fires search\n * @fires result\n * @fires error\n */\nAlgoliaSearchHelper.prototype._search = function(options) {\n  var state = this.state;\n  var states = [];\n  var mainQueries = [];\n\n  if (!options.onlyWithDerivedHelpers) {\n    mainQueries = requestBuilder._getQueries(state.index, state);\n\n    states.push({\n      state: state,\n      queriesCount: mainQueries.length,\n      helper: this\n    });\n\n    this.emit('search', {\n      state: state,\n      results: this.lastResults\n    });\n  }\n\n  var derivedQueries = this.derivedHelpers.map(function(derivedHelper) {\n    var derivedState = derivedHelper.getModifiedState(state);\n    var derivedStateQueries = requestBuilder._getQueries(derivedState.index, derivedState);\n\n    states.push({\n      state: derivedState,\n      queriesCount: derivedStateQueries.length,\n      helper: derivedHelper\n    });\n\n    derivedHelper.emit('search', {\n      state: derivedState,\n      results: derivedHelper.lastResults\n    });\n\n    return derivedStateQueries;\n  });\n\n  var queries = Array.prototype.concat.apply(mainQueries, derivedQueries);\n  var queryId = this._queryId++;\n\n  this._currentNbQueries++;\n\n  try {\n    this.client.search(queries)\n      .then(this._dispatchAlgoliaResponse.bind(this, states, queryId))\n      .catch(this._dispatchAlgoliaError.bind(this, queryId));\n  } catch (error) {\n    // If we reach this part, we're in an internal error state\n    this.emit('error', {\n      error: error\n    });\n  }\n};\n\n/**\n * Transform the responses as sent by the server and transform them into a user\n * usable object that merge the results of all the batch requests. It will dispatch\n * over the different helper + derived helpers (when there are some).\n * @private\n * @param {array.<{SearchParameters, AlgoliaQueries, AlgoliaSearchHelper}>}\n *  state state used for to generate the request\n * @param {number} queryId id of the current request\n * @param {object} content content of the response\n * @return {undefined}\n */\nAlgoliaSearchHelper.prototype._dispatchAlgoliaResponse = function(states, queryId, content) {\n  // FIXME remove the number of outdated queries discarded instead of just one\n\n  if (queryId < this._lastQueryIdReceived) {\n    // Outdated answer\n    return;\n  }\n\n  this._currentNbQueries -= (queryId - this._lastQueryIdReceived);\n  this._lastQueryIdReceived = queryId;\n\n  if (this._currentNbQueries === 0) this.emit('searchQueueEmpty');\n\n  var results = content.results.slice();\n\n  states.forEach(function(s) {\n    var state = s.state;\n    var queriesCount = s.queriesCount;\n    var helper = s.helper;\n    var specificResults = results.splice(0, queriesCount);\n\n    var formattedResponse = helper.lastResults = new SearchResults(state, specificResults);\n\n    helper.emit('result', {\n      results: formattedResponse,\n      state: state\n    });\n  });\n};\n\nAlgoliaSearchHelper.prototype._dispatchAlgoliaError = function(queryId, error) {\n  if (queryId < this._lastQueryIdReceived) {\n    // Outdated answer\n    return;\n  }\n\n  this._currentNbQueries -= queryId - this._lastQueryIdReceived;\n  this._lastQueryIdReceived = queryId;\n\n  this.emit('error', {\n    error: error\n  });\n\n  if (this._currentNbQueries === 0) this.emit('searchQueueEmpty');\n};\n\nAlgoliaSearchHelper.prototype.containsRefinement = function(query, facetFilters, numericFilters, tagFilters) {\n  return query ||\n    facetFilters.length !== 0 ||\n    numericFilters.length !== 0 ||\n    tagFilters.length !== 0;\n};\n\n/**\n * Test if there are some disjunctive refinements on the facet\n * @private\n * @param {string} facet the attribute to test\n * @return {boolean}\n */\nAlgoliaSearchHelper.prototype._hasDisjunctiveRefinements = function(facet) {\n  return this.state.disjunctiveRefinements[facet] &&\n    this.state.disjunctiveRefinements[facet].length > 0;\n};\n\nAlgoliaSearchHelper.prototype._change = function(event) {\n  var state = event.state;\n  var isPageReset = event.isPageReset;\n\n  if (state !== this.state) {\n    this.state = state;\n\n    this.emit('change', {\n      state: this.state,\n      results: this.lastResults,\n      isPageReset: isPageReset\n    });\n  }\n};\n\n/**\n * Clears the cache of the underlying Algolia client.\n * @return {AlgoliaSearchHelper}\n */\nAlgoliaSearchHelper.prototype.clearCache = function() {\n  this.client.clearCache && this.client.clearCache();\n  return this;\n};\n\n/**\n * Updates the internal client instance. If the reference of the clients\n * are equal then no update is actually done.\n * @param  {AlgoliaSearch} newClient an AlgoliaSearch client\n * @return {AlgoliaSearchHelper}\n */\nAlgoliaSearchHelper.prototype.setClient = function(newClient) {\n  if (this.client === newClient) return this;\n\n  if (typeof newClient.addAlgoliaAgent === 'function') {\n    newClient.addAlgoliaAgent('JS Helper (' + version + ')');\n  }\n  this.client = newClient;\n\n  return this;\n};\n\n/**\n * Gets the instance of the currently used client.\n * @return {AlgoliaSearch}\n */\nAlgoliaSearchHelper.prototype.getClient = function() {\n  return this.client;\n};\n\n/**\n * Creates an derived instance of the Helper. A derived helper\n * is a way to request other indices synchronised with the lifecycle\n * of the main Helper. This mechanism uses the multiqueries feature\n * of Algolia to aggregate all the requests in a single network call.\n *\n * This method takes a function that is used to create a new SearchParameter\n * that will be used to create requests to Algolia. Those new requests\n * are created just before the `search` event. The signature of the function\n * is `SearchParameters -> SearchParameters`.\n *\n * This method returns a new DerivedHelper which is an EventEmitter\n * that fires the same `search`, `result` and `error` events. Those\n * events, however, will receive data specific to this DerivedHelper\n * and the SearchParameters that is returned by the call of the\n * parameter function.\n * @param {function} fn SearchParameters -> SearchParameters\n * @return {DerivedHelper}\n */\nAlgoliaSearchHelper.prototype.derive = function(fn) {\n  var derivedHelper = new DerivedHelper(this, fn);\n  this.derivedHelpers.push(derivedHelper);\n  return derivedHelper;\n};\n\n/**\n * This method detaches a derived Helper from the main one. Prefer using the one from the\n * derived helper itself, to remove the event listeners too.\n * @private\n * @return {undefined}\n * @throws Error\n */\nAlgoliaSearchHelper.prototype.detachDerivedHelper = function(derivedHelper) {\n  var pos = this.derivedHelpers.indexOf(derivedHelper);\n  if (pos === -1) throw new Error('Derived helper already detached');\n  this.derivedHelpers.splice(pos, 1);\n};\n\n/**\n * This method returns true if there is currently at least one on-going search.\n * @return {boolean} true if there is a search pending\n */\nAlgoliaSearchHelper.prototype.hasPendingRequests = function() {\n  return this._currentNbQueries > 0;\n};\n\n/**\n * @typedef AlgoliaSearchHelper.NumericRefinement\n * @type {object}\n * @property {number[]} value the numbers that are used for filtering this attribute with\n * the operator specified.\n * @property {string} operator the faceting data: value, number of entries\n * @property {string} type will be 'numeric'\n */\n\n/**\n * @typedef AlgoliaSearchHelper.FacetRefinement\n * @type {object}\n * @property {string} value the string use to filter the attribute\n * @property {string} type the type of filter: 'conjunctive', 'disjunctive', 'exclude'\n */\n\nmodule.exports = AlgoliaSearchHelper;\n",
    "'use strict';\n\nmodule.exports = function compact(array) {\n  if (!Array.isArray(array)) {\n    return [];\n  }\n\n  return array.filter(Boolean);\n};\n",
    "'use strict';\n\n// NOTE: this behaves like lodash/defaults, but doesn't mutate the target\n// it also preserve keys order\nmodule.exports = function defaultsPure() {\n  var sources = Array.prototype.slice.call(arguments);\n  return sources.reduce(function(acc, source) {\n    Object.keys(Object(source)).forEach(function(key) {\n      if (source[key] !== undefined && !Object.hasOwnProperty.call(acc, key)) {\n        acc[key] = source[key];\n      }\n    });\n    return acc;\n  }, {});\n};\n",
    "'use strict';\n\n// @MAJOR can be replaced by native Array#find when we change support\nmodule.exports = function find(array, comparator) {\n  if (!Array.isArray(array)) {\n    return undefined;\n  }\n\n  for (var i = 0; i < array.length; i++) {\n    if (comparator(array[i])) {\n      return array[i];\n    }\n  }\n};\n",
    "'use strict';\n\n// @MAJOR can be replaced by native Array#findIndex when we change support\nmodule.exports = function find(array, comparator) {\n  if (!Array.isArray(array)) {\n    return -1;\n  }\n\n  for (var i = 0; i < array.length; i++) {\n    if (comparator(array[i])) {\n      return i;\n    }\n  }\n  return -1;\n};\n",
    "'use strict';\n\nvar find = require('./find');\n\n/**\n * Transform sort format from user friendly notation to lodash format\n * @param {string[]} sortBy array of predicate of the form \"attribute:order\"\n * @param {string[]} [defaults] array of predicate of the form \"attribute:order\"\n * @return {array.<string[]>} array containing 2 elements : attributes, orders\n */\nmodule.exports = function formatSort(sortBy, defaults) {\n  var defaultInstructions = (defaults || []).map(function(sort) {\n    return sort.split(':');\n  });\n\n  return sortBy.reduce(\n    function preparePredicate(out, sort) {\n      var sortInstruction = sort.split(':');\n\n      var matchingDefault = find(defaultInstructions, function(\n        defaultInstruction\n      ) {\n        return defaultInstruction[0] === sortInstruction[0];\n      });\n\n      if (sortInstruction.length > 1 || !matchingDefault) {\n        out[0].push(sortInstruction[0]);\n        out[1].push(sortInstruction[1]);\n        return out;\n      }\n\n      out[0].push(matchingDefault[0]);\n      out[1].push(matchingDefault[1]);\n      return out;\n    },\n    [[], []]\n  );\n};\n",
    "'use strict';\n\nfunction inherits(ctor, superCtor) {\n  ctor.prototype = Object.create(superCtor.prototype, {\n    constructor: {\n      value: ctor,\n      enumerable: false,\n      writable: true,\n      configurable: true\n    }\n  });\n}\n\nmodule.exports = inherits;\n",
    "'use strict';\n\nfunction intersection(arr1, arr2) {\n  return arr1.filter(function(value, index) {\n    return (\n      arr2.indexOf(value) > -1 &&\n      arr1.indexOf(value) === index /* skips duplicates */\n    );\n  });\n}\n\nmodule.exports = intersection;\n",
    "'use strict';\n\nfunction clone(value) {\n  if (typeof value === 'object' && value !== null) {\n    return _merge(Array.isArray(value) ? [] : {}, value);\n  }\n  return value;\n}\n\nfunction isObjectOrArrayOrFunction(value) {\n  return (\n    typeof value === 'function' ||\n    Array.isArray(value) ||\n    Object.prototype.toString.call(value) === '[object Object]'\n  );\n}\n\nfunction _merge(target, source) {\n  if (target === source) {\n    return target;\n  }\n\n  for (var key in source) {\n    if (!Object.prototype.hasOwnProperty.call(source, key)) {\n      continue;\n    }\n\n    var sourceVal = source[key];\n    var targetVal = target[key];\n\n    if (typeof targetVal !== 'undefined' && typeof sourceVal === 'undefined') {\n      continue;\n    }\n\n    if (isObjectOrArrayOrFunction(targetVal) && isObjectOrArrayOrFunction(sourceVal)) {\n      target[key] = _merge(targetVal, sourceVal);\n    } else {\n      target[key] = clone(sourceVal);\n    }\n  }\n  return target;\n}\n\n/**\n * This method is like Object.assign, but recursively merges own and inherited\n * enumerable keyed properties of source objects into the destination object.\n *\n * NOTE: this behaves like lodash/merge, but:\n * - does mutate functions if they are a source\n * - treats non-plain objects as plain\n * - does not work for circular objects\n * - treats sparse arrays as sparse\n * - does not convert Array-like objects (Arguments, NodeLists, etc.) to arrays\n *\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n */\n\nfunction merge(target) {\n  if (!isObjectOrArrayOrFunction(target)) {\n    target = {};\n  }\n\n  for (var i = 1, l = arguments.length; i < l; i++) {\n    var source = arguments[i];\n\n    if (isObjectOrArrayOrFunction(source)) {\n      _merge(target, source);\n    }\n  }\n  return target;\n}\n\nmodule.exports = merge;\n",
    "'use strict';\n\nfunction objectHasKeys(obj) {\n  return obj && Object.keys(obj).length > 0;\n}\n\nmodule.exports = objectHasKeys;\n",
    "'use strict';\n\n// https://github.com/babel/babel/blob/3aaafae053fa75febb3aa45d45b6f00646e30ba4/packages/babel-helpers/src/helpers.js#L604-L620\nfunction _objectWithoutPropertiesLoose(source, excluded) {\n  if (source === null) return {};\n  var target = {};\n  var sourceKeys = Object.keys(source);\n  var key;\n  var i;\n  for (i = 0; i < sourceKeys.length; i++) {\n    key = sourceKeys[i];\n    if (excluded.indexOf(key) >= 0) continue;\n    target[key] = source[key];\n  }\n  return target;\n}\n\nmodule.exports = _objectWithoutPropertiesLoose;\n",
    "'use strict';\n\nfunction compareAscending(value, other) {\n  if (value !== other) {\n    var valIsDefined = value !== undefined;\n    var valIsNull = value === null;\n\n    var othIsDefined = other !== undefined;\n    var othIsNull = other === null;\n\n    if (\n      (!othIsNull && value > other) ||\n      (valIsNull && othIsDefined) ||\n      !valIsDefined\n    ) {\n      return 1;\n    }\n    if (\n      (!valIsNull && value < other) ||\n      (othIsNull && valIsDefined) ||\n      !othIsDefined\n    ) {\n      return -1;\n    }\n  }\n  return 0;\n}\n\n/**\n * @param {Array<object>} collection object with keys in attributes\n * @param {Array<string>} iteratees attributes\n * @param {Array<string>} orders asc | desc\n */\nfunction orderBy(collection, iteratees, orders) {\n  if (!Array.isArray(collection)) {\n    return [];\n  }\n\n  if (!Array.isArray(orders)) {\n    orders = [];\n  }\n\n  var result = collection.map(function(value, index) {\n    return {\n      criteria: iteratees.map(function(iteratee) {\n        return value[iteratee];\n      }),\n      index: index,\n      value: value\n    };\n  });\n\n  result.sort(function comparer(object, other) {\n    var index = -1;\n\n    while (++index < object.criteria.length) {\n      var res = compareAscending(object.criteria[index], other.criteria[index]);\n      if (res) {\n        if (index >= orders.length) {\n          return res;\n        }\n        if (orders[index] === 'desc') {\n          return -res;\n        }\n        return res;\n      }\n    }\n\n    // This ensures a stable sort in V8 and other engines.\n    // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n    return object.index - other.index;\n  });\n\n  return result.map(function(res) {\n    return res.value;\n  });\n}\n\nmodule.exports = orderBy;\n",
    "'use strict';\n\nfunction valToNumber(v) {\n  if (typeof v === 'number') {\n    return v;\n  } else if (typeof v === 'string') {\n    return parseFloat(v);\n  } else if (Array.isArray(v)) {\n    return v.map(valToNumber);\n  }\n\n  throw new Error('The value should be a number, a parsable string or an array of those.');\n}\n\nmodule.exports = valToNumber;\n",
    "'use strict';\n\nvar merge = require('./functions/merge');\n\nvar requestBuilder = {\n  /**\n   * Get all the queries to send to the client, those queries can used directly\n   * with the Algolia client.\n   * @private\n   * @return {object[]} The queries\n   */\n  _getQueries: function getQueries(index, state) {\n    var queries = [];\n\n    // One query for the hits\n    queries.push({\n      indexName: index,\n      params: requestBuilder._getHitsSearchParams(state)\n    });\n\n    // One for each disjunctive facets\n    state.getRefinedDisjunctiveFacets().forEach(function(refinedFacet) {\n      queries.push({\n        indexName: index,\n        params: requestBuilder._getDisjunctiveFacetSearchParams(state, refinedFacet)\n      });\n    });\n\n    // maybe more to get the root level of hierarchical facets when activated\n    state.getRefinedHierarchicalFacets().forEach(function(refinedFacet) {\n      var hierarchicalFacet = state.getHierarchicalFacetByName(refinedFacet);\n\n      var currentRefinement = state.getHierarchicalRefinement(refinedFacet);\n      // if we are deeper than level 0 (starting from `beer > IPA`)\n      // we want to get the root values\n      var separator = state._getHierarchicalFacetSeparator(hierarchicalFacet);\n      if (currentRefinement.length > 0 && currentRefinement[0].split(separator).length > 1) {\n        queries.push({\n          indexName: index,\n          params: requestBuilder._getDisjunctiveFacetSearchParams(state, refinedFacet, true)\n        });\n      }\n    });\n\n    return queries;\n  },\n\n  /**\n   * Build search parameters used to fetch hits\n   * @private\n   * @return {object.<string, any>}\n   */\n  _getHitsSearchParams: function(state) {\n    var facets = state.facets\n      .concat(state.disjunctiveFacets)\n      .concat(requestBuilder._getHitsHierarchicalFacetsAttributes(state));\n\n\n    var facetFilters = requestBuilder._getFacetFilters(state);\n    var numericFilters = requestBuilder._getNumericFilters(state);\n    var tagFilters = requestBuilder._getTagFilters(state);\n    var additionalParams = {\n      facets: facets,\n      tagFilters: tagFilters\n    };\n\n    if (facetFilters.length > 0) {\n      additionalParams.facetFilters = facetFilters;\n    }\n\n    if (numericFilters.length > 0) {\n      additionalParams.numericFilters = numericFilters;\n    }\n\n    return merge({}, state.getQueryParams(), additionalParams);\n  },\n\n  /**\n   * Build search parameters used to fetch a disjunctive facet\n   * @private\n   * @param  {string} facet the associated facet name\n   * @param  {boolean} hierarchicalRootLevel ?? FIXME\n   * @return {object}\n   */\n  _getDisjunctiveFacetSearchParams: function(state, facet, hierarchicalRootLevel) {\n    var facetFilters = requestBuilder._getFacetFilters(state, facet, hierarchicalRootLevel);\n    var numericFilters = requestBuilder._getNumericFilters(state, facet);\n    var tagFilters = requestBuilder._getTagFilters(state);\n    var additionalParams = {\n      hitsPerPage: 1,\n      page: 0,\n      attributesToRetrieve: [],\n      attributesToHighlight: [],\n      attributesToSnippet: [],\n      tagFilters: tagFilters,\n      analytics: false,\n      clickAnalytics: false\n    };\n\n    var hierarchicalFacet = state.getHierarchicalFacetByName(facet);\n\n    if (hierarchicalFacet) {\n      additionalParams.facets = requestBuilder._getDisjunctiveHierarchicalFacetAttribute(\n        state,\n        hierarchicalFacet,\n        hierarchicalRootLevel\n      );\n    } else {\n      additionalParams.facets = facet;\n    }\n\n    if (numericFilters.length > 0) {\n      additionalParams.numericFilters = numericFilters;\n    }\n\n    if (facetFilters.length > 0) {\n      additionalParams.facetFilters = facetFilters;\n    }\n\n    return merge({}, state.getQueryParams(), additionalParams);\n  },\n\n  /**\n   * Return the numeric filters in an algolia request fashion\n   * @private\n   * @param {string} [facetName] the name of the attribute for which the filters should be excluded\n   * @return {string[]} the numeric filters in the algolia format\n   */\n  _getNumericFilters: function(state, facetName) {\n    if (state.numericFilters) {\n      return state.numericFilters;\n    }\n\n    var numericFilters = [];\n\n    Object.keys(state.numericRefinements).forEach(function(attribute) {\n      var operators = state.numericRefinements[attribute] || {};\n      Object.keys(operators).forEach(function(operator) {\n        var values = operators[operator] || [];\n        if (facetName !== attribute) {\n          values.forEach(function(value) {\n            if (Array.isArray(value)) {\n              var vs = value.map(function(v) {\n                return attribute + operator + v;\n              });\n              numericFilters.push(vs);\n            } else {\n              numericFilters.push(attribute + operator + value);\n            }\n          });\n        }\n      });\n    });\n\n    return numericFilters;\n  },\n\n  /**\n   * Return the tags filters depending\n   * @private\n   * @return {string}\n   */\n  _getTagFilters: function(state) {\n    if (state.tagFilters) {\n      return state.tagFilters;\n    }\n\n    return state.tagRefinements.join(',');\n  },\n\n\n  /**\n   * Build facetFilters parameter based on current refinements. The array returned\n   * contains strings representing the facet filters in the algolia format.\n   * @private\n   * @param  {string} [facet] if set, the current disjunctive facet\n   * @return {array.<string>}\n   */\n  _getFacetFilters: function(state, facet, hierarchicalRootLevel) {\n    var facetFilters = [];\n\n    var facetsRefinements = state.facetsRefinements || {};\n    Object.keys(facetsRefinements).forEach(function(facetName) {\n      var facetValues = facetsRefinements[facetName] || [];\n      facetValues.forEach(function(facetValue) {\n        facetFilters.push(facetName + ':' + facetValue);\n      });\n    });\n\n    var facetsExcludes = state.facetsExcludes || {};\n    Object.keys(facetsExcludes).forEach(function(facetName) {\n      var facetValues = facetsExcludes[facetName] || [];\n      facetValues.forEach(function(facetValue) {\n        facetFilters.push(facetName + ':-' + facetValue);\n      });\n    });\n\n    var disjunctiveFacetsRefinements = state.disjunctiveFacetsRefinements || {};\n    Object.keys(disjunctiveFacetsRefinements).forEach(function(facetName) {\n      var facetValues = disjunctiveFacetsRefinements[facetName] || [];\n      if (facetName === facet || !facetValues || facetValues.length === 0) {\n        return;\n      }\n      var orFilters = [];\n\n      facetValues.forEach(function(facetValue) {\n        orFilters.push(facetName + ':' + facetValue);\n      });\n\n      facetFilters.push(orFilters);\n    });\n\n    var hierarchicalFacetsRefinements = state.hierarchicalFacetsRefinements || {};\n    Object.keys(hierarchicalFacetsRefinements).forEach(function(facetName) {\n      var facetValues = hierarchicalFacetsRefinements[facetName] || [];\n      var facetValue = facetValues[0];\n\n      if (facetValue === undefined) {\n        return;\n      }\n\n      var hierarchicalFacet = state.getHierarchicalFacetByName(facetName);\n      var separator = state._getHierarchicalFacetSeparator(hierarchicalFacet);\n      var rootPath = state._getHierarchicalRootPath(hierarchicalFacet);\n      var attributeToRefine;\n      var attributesIndex;\n\n      // we ask for parent facet values only when the `facet` is the current hierarchical facet\n      if (facet === facetName) {\n        // if we are at the root level already, no need to ask for facet values, we get them from\n        // the hits query\n        if (facetValue.indexOf(separator) === -1 || (!rootPath && hierarchicalRootLevel === true) ||\n          (rootPath && rootPath.split(separator).length === facetValue.split(separator).length)) {\n          return;\n        }\n\n        if (!rootPath) {\n          attributesIndex = facetValue.split(separator).length - 2;\n          facetValue = facetValue.slice(0, facetValue.lastIndexOf(separator));\n        } else {\n          attributesIndex = rootPath.split(separator).length - 1;\n          facetValue = rootPath;\n        }\n\n        attributeToRefine = hierarchicalFacet.attributes[attributesIndex];\n      } else {\n        attributesIndex = facetValue.split(separator).length - 1;\n\n        attributeToRefine = hierarchicalFacet.attributes[attributesIndex];\n      }\n\n      if (attributeToRefine) {\n        facetFilters.push([attributeToRefine + ':' + facetValue]);\n      }\n    });\n\n    return facetFilters;\n  },\n\n  _getHitsHierarchicalFacetsAttributes: function(state) {\n    var out = [];\n\n    return state.hierarchicalFacets.reduce(\n      // ask for as much levels as there's hierarchical refinements\n      function getHitsAttributesForHierarchicalFacet(allAttributes, hierarchicalFacet) {\n        var hierarchicalRefinement = state.getHierarchicalRefinement(hierarchicalFacet.name)[0];\n\n        // if no refinement, ask for root level\n        if (!hierarchicalRefinement) {\n          allAttributes.push(hierarchicalFacet.attributes[0]);\n          return allAttributes;\n        }\n\n        var separator = state._getHierarchicalFacetSeparator(hierarchicalFacet);\n        var level = hierarchicalRefinement.split(separator).length;\n        var newAttributes = hierarchicalFacet.attributes.slice(0, level + 1);\n\n        return allAttributes.concat(newAttributes);\n      }, out);\n  },\n\n  _getDisjunctiveHierarchicalFacetAttribute: function(state, hierarchicalFacet, rootLevel) {\n    var separator = state._getHierarchicalFacetSeparator(hierarchicalFacet);\n    if (rootLevel === true) {\n      var rootPath = state._getHierarchicalRootPath(hierarchicalFacet);\n      var attributeIndex = 0;\n\n      if (rootPath) {\n        attributeIndex = rootPath.split(separator).length;\n      }\n      return [hierarchicalFacet.attributes[attributeIndex]];\n    }\n\n    var hierarchicalRefinement = state.getHierarchicalRefinement(hierarchicalFacet.name)[0] || '';\n    // if refinement is 'beers > IPA > Flying dog',\n    // then we want `facets: ['beers > IPA']` as disjunctive facet (parent level values)\n\n    var parentLevel = hierarchicalRefinement.split(separator).length - 1;\n    return hierarchicalFacet.attributes.slice(0, parentLevel + 1);\n  },\n\n  getSearchForFacetQuery: function(facetName, query, maxFacetHits, state) {\n    var stateForSearchForFacetValues = state.isDisjunctiveFacet(facetName) ?\n      state.clearRefinements(facetName) :\n      state;\n    var searchForFacetSearchParameters = {\n      facetQuery: query,\n      facetName: facetName\n    };\n    if (typeof maxFacetHits === 'number') {\n      searchForFacetSearchParameters.maxFacetHits = maxFacetHits;\n    }\n    return merge(\n      {},\n      requestBuilder._getHitsSearchParams(stateForSearchForFacetValues),\n      searchForFacetSearchParameters\n    );\n  }\n};\n\nmodule.exports = requestBuilder;\n",
    "'use strict';\n\nmodule.exports = '3.1.2';\n"
  ]
}