feat(ts): add virtual index parameters (#1251)

* feat(ts): add virtual index parameters

fixes #1249

* Update packages/client-search/src/types/Settings.ts

* Apply suggestions from code review

Co-authored-by: Antoine Hémery <antoine.hemery@algolia.com>

* Update packages/client-search/src/types/SearchResponse.ts

Co-authored-by: Antoine Hémery <antoine.hemery@algolia.com>

Author: Haroenv

packages/client-search/src/types/SearchOptions.ts

@@ -342,4 +342,11 @@ export type SearchOptions = {
    * results.
    */
   readonly decompoundQuery?: boolean;
+
+  /**
+   * The relevancy threshold to apply to search in a virtual index [0-100]. A Bigger
+   * value means fewer, but more relevant results, smaller value means more, but
+   * less relevant results.
+   */
+  readonly relevancyStrictness?: number;
 };

packages/client-search/src/types/SearchResponse.ts

@@ -28,6 +28,11 @@ export type SearchResponse<TObject = {}> = {
    */
   nbHits: number;
 
+  /**
+   * Subset of hits selected when relevancyStrictness is applied.
+   */
+  nbSortedHits?: number;
+
   /**
    * Number of pages returned.
    *
@@ -215,4 +220,9 @@ export type SearchResponse<TObject = {}> = {
      */
     params?: Record<string, any>;
   };
+
+  /**
+   * The relevancy threshold applied to search in a virtual index.
+   */
+  appliedRelevancyStrictness?: number;
 };

packages/client-search/src/types/Settings.ts

@@ -297,4 +297,11 @@ export type Settings = {
    * transliteration to make words indexed in Katakana or Kanji searchable in Hiragana.
    */
   readonly attributesToTransliterate?: readonly string[];
+
+  /**
+   * The relevancy threshold to apply to search in a virtual index [0-100]. A Bigger
+   * value means fewer, but more relevant results, smaller value means more, but
+   * less relevant results.
+   */
+  readonly relevancyStrictness?: number;
 };