fix(searchForFacetValues): only call client.search

This signature is the easiest to detect and makes the required signature of the searchClient simpler (only `search`, `getRecommendations` and `addAlgoliaAgent` are now used).

In this PR I also fix the signature of `search` in `SearchClient` type to make this usage fit reality

Author: Haroenv

packages/algoliasearch-helper/src/algoliasearch.helper.js

@@ -322,21 +322,6 @@ AlgoliaSearchHelper.prototype.searchForFacetValues = function (
   maxFacetHits,
   userState
 ) {
-  var clientHasSFFV =
-    typeof this.client.searchForFacetValues === 'function' &&
-    // v5 has a wrong sffv signature
-    typeof this.client.searchForFacets !== 'function';
-  var clientHasInitIndex = typeof this.client.initIndex === 'function';
-  if (
-    !clientHasSFFV &&
-    !clientHasInitIndex &&
-    typeof this.client.search !== 'function'
-  ) {
-    throw new Error(
-      'search for facet values (searchable) was called, but this client does not have a function client.searchForFacetValues or client.initIndex(index).searchForFacetValues'
-    );
-  }
-
   var state = this.state.setQueryParameters(userState || {});
   var isDisjunctive = state.isDisjunctiveFacet(facet);
   var algoliaQuery = requestBuilder.getSearchForFacetQuery(
@@ -349,34 +334,15 @@ AlgoliaSearchHelper.prototype.searchForFacetValues = function (
   this._currentNbQueries++;
   // eslint-disable-next-line consistent-this
   var self = this;
-  var searchForFacetValuesPromise;
-  // newer algoliasearch ^3.27.1 - ~4.0.0
-  if (clientHasSFFV) {
-    searchForFacetValuesPromise = this.client.searchForFacetValues([
-      { indexName: state.index, params: algoliaQuery },
-    ]);
-    // algoliasearch < 3.27.1
-  } else if (clientHasInitIndex) {
-    searchForFacetValuesPromise = this.client
-      .initIndex(state.index)
-      .searchForFacetValues(algoliaQuery);
-    // algoliasearch ~5.0.0
-  } else {
-    // @MAJOR only use client.search
-    delete algoliaQuery.facetName;
-    searchForFacetValuesPromise = this.client
-      .search([
-        {
-          type: 'facet',
-          facet: facet,
-          indexName: state.index,
-          params: algoliaQuery,
-        },
-      ])
-      .then(function processResponse(response) {
-        return response.results[0];
-      });
-  }
+
+  var searchForFacetValuesPromise = this.client.search([
+    {
+      type: 'facet',
+      facet: facet,
+      indexName: state.index,
+      params: algoliaQuery,
+    },
+  ]);
 
   this.emit('searchForFacetValues', {
     state: state,
@@ -389,16 +355,16 @@ AlgoliaSearchHelper.prototype.searchForFacetValues = function (
       self._currentNbQueries--;
       if (self._currentNbQueries === 0) self.emit('searchQueueEmpty');
 
-      content = Array.isArray(content) ? content[0] : content;
+      var result = content.results[0];
 
-      content.facetHits.forEach(function (f) {
+      result.facetHits.forEach(function (f) {
         f.escapedValue = escapeFacetValue(f.value);
         f.isRefined = isDisjunctive
           ? state.isDisjunctiveFacetRefined(facet, f.escapedValue)
           : state.isFacetRefined(facet, f.escapedValue);
       });
 
-      return content;
+      return result;
     },
     function (e) {
       self._currentNbQueries--;

packages/algoliasearch-helper/src/requestBuilder.js

@@ -434,7 +434,6 @@ var requestBuilder = {
       : state;
     var searchForFacetSearchParameters = {
       facetQuery: query,
-      facetName: facetName,
     };
     if (typeof maxFacetHits === 'number') {
       searchForFacetSearchParameters.maxFacetHits = maxFacetHits;

packages/algoliasearch-helper/test/spec/algoliasearch.helper/events.js

@@ -7,9 +7,6 @@ function makeFakeClient() {
     search: jest.fn(function () {
       return new Promise(function () {});
     }),
-    searchForFacetValues: jest.fn(function () {
-      return new Promise(function () {});
-    }),
   };
 }
 
@@ -297,7 +294,7 @@ test(
     helper.on('searchForFacetValues', searchedForFacetValues);
 
     expect(searchedForFacetValues).toHaveBeenCalledTimes(0);
-    expect(fakeClient.searchForFacetValues).toHaveBeenCalledTimes(0);
+    expect(fakeClient.search).toHaveBeenCalledTimes(0);
 
     helper.searchForFacetValues('city', 'NYC');
     expect(searchedForFacetValues).toHaveBeenCalledTimes(1);
@@ -306,7 +303,7 @@ test(
       facet: 'city',
       query: 'NYC',
     });
-    expect(fakeClient.searchForFacetValues).toHaveBeenCalledTimes(1);
+    expect(fakeClient.search).toHaveBeenCalledTimes(1);
   }
 );
 

packages/algoliasearch-helper/test/spec/algoliasearch.helper/pendingSearch.js

@@ -1,7 +1,6 @@
 'use strict';
 
 var algoliasearch = require('algoliasearch');
-var isV5 = (algoliasearch.apiClientVersion || '')[0] === '5';
 algoliasearch = algoliasearch.algoliasearch || algoliasearch;
 
 var algoliasearchHelper = require('../../../index');
@@ -72,85 +71,45 @@ test('When searchOnce with promises, hasPendingRequests is true', function (done
   triggerCb();
 });
 
-if (!isV5) {
-  test('When searchForFacetValues, hasPendingRequests is true (v3, v4)', function (done) {
-    var client = algoliasearch('dsf', 'dsfdf');
+test('When searchForFacetValues, hasPendingRequests is true', function (done) {
+  var client = algoliasearch('dsf', 'dsfdf');
 
-    let triggerCb;
-    client.searchForFacetValues = function () {
-      return new Promise(function (resolve) {
-        triggerCb = function () {
-          resolve([
+  let triggerCb;
+  client.search = function () {
+    return new Promise(function (resolve) {
+      triggerCb = function () {
+        resolve({
+          results: [
             {
               exhaustiveFacetsCount: true,
               facetHits: [],
               processingTimeMS: 3,
             },
-          ]);
-        };
-      });
-    };
-
-    var helper = algoliasearchHelper(client, 'test_hotels-node');
-    var countNoMoreSearch = 0;
-    helper.on('searchQueueEmpty', function () {
-      countNoMoreSearch += 1;
-    });
-
-    expect(helper.hasPendingRequests()).toBe(false);
-
-    helper.searchForFacetValues('').then(function () {
-      expect(helper.hasPendingRequests()).toBe(false);
-      expect(countNoMoreSearch).toBe(1);
-      done();
+          ],
+        });
+      };
     });
+  };
 
-    expect(helper.hasPendingRequests()).toBe(true);
-    expect(countNoMoreSearch).toBe(0);
-
-    triggerCb();
+  var helper = algoliasearchHelper(client, 'test_hotels-node');
+  var countNoMoreSearch = 0;
+  helper.on('searchQueueEmpty', function () {
+    countNoMoreSearch += 1;
   });
-} else {
-  test('When searchForFacetValues, hasPendingRequests is true (v5)', function (done) {
-    var client = algoliasearch('dsf', 'dsfdf');
-
-    let triggerCb;
-    client.search = function () {
-      return new Promise(function (resolve) {
-        triggerCb = function () {
-          resolve({
-            results: [
-              {
-                exhaustiveFacetsCount: true,
-                facetHits: [],
-                processingTimeMS: 3,
-              },
-            ],
-          });
-        };
-      });
-    };
 
-    var helper = algoliasearchHelper(client, 'test_hotels-node');
-    var countNoMoreSearch = 0;
-    helper.on('searchQueueEmpty', function () {
-      countNoMoreSearch += 1;
-    });
+  expect(helper.hasPendingRequests()).toBe(false);
 
+  helper.searchForFacetValues('').then(function () {
     expect(helper.hasPendingRequests()).toBe(false);
+    expect(countNoMoreSearch).toBe(1);
+    done();
+  });
 
-    helper.searchForFacetValues('').then(function () {
-      expect(helper.hasPendingRequests()).toBe(false);
-      expect(countNoMoreSearch).toBe(1);
-      done();
-    });
-
-    expect(helper.hasPendingRequests()).toBe(true);
-    expect(countNoMoreSearch).toBe(0);
+  expect(helper.hasPendingRequests()).toBe(true);
+  expect(countNoMoreSearch).toBe(0);
 
-    triggerCb();
-  });
-}
+  triggerCb();
+});
 
 test('When helper.search(), hasPendingRequests is true', function (done) {
   var testData = require('../../datasets/SearchParameters/search.dataset')();