[ACS-5093] Optimise Categories facet names load (#8498)

* [ACS-5093] removed redundant API call

* [ACS-5093] added error handling

docs/content-services/services/category.service.md

@@ -22,6 +22,9 @@ Manages categories in Content Services.
 -   **getCategory**(categoryId: `string`): [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`CategoryEntry`](https://github.com/Alfresco/alfresco-js-api/blob/master/src/api/content-rest-api/docs/CategoryEntry.md)`>`<br/>
     Gets a specific category by categoryId.
     -   _categoryId:_ `string`  - The identifier of a category
+    -   _opts:_ `any`  - Optional parameters
+    -   _opts.fields_ `string[]` - A list of field names
+    -   _opts.include_ `string[]` - Returns additional information about the category. The following optional fields can be requested: count, path
     -   **Returns** [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`CategoryEntry`](https://github.com/Alfresco/alfresco-js-api/blob/master/src/api/content-rest-api/docs/CategoryEntry.md)`>` - CategoryEntry object (defined in JS-API) containing information about the category.
 -   **createSubcategories**(parentCategoryId: `string`, payload: [`CategoryBody[]`](https://github.com/Alfresco/alfresco-js-api/blob/master/src/api/content-rest-api/docs/CategoryBody.md)): [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`CategoryPaging`](https://github.com/Alfresco/alfresco-js-api/blob/master/src/api/content-rest-api/docs/CategoryPaging.md) | [`CategoryEntry`](https://github.com/Alfresco/alfresco-js-api/blob/master/src/api/content-rest-api/docs/CategoryEntry.md)`>`<br/>
     Creates subcategories under category with provided categoryId.

lib/content-services/src/lib/category/services/category.service.spec.ts

@@ -67,8 +67,8 @@ describe('CategoryService', () => {
 
     it('should fetch the category with the provided categoryId', fakeAsync(() => {
         const getSpy = spyOn(categoryService.categoriesApi, 'getCategory').and.returnValue(Promise.resolve(fakeCategoryEntry));
-        categoryService.getCategory(fakeParentCategoryId).subscribe(() => {
-            expect(getSpy).toHaveBeenCalledOnceWith(fakeParentCategoryId);
+        categoryService.getCategory(fakeParentCategoryId, {include: ['path']}).subscribe(() => {
+            expect(getSpy).toHaveBeenCalledOnceWith(fakeParentCategoryId, {include: ['path']});
         });
     }));
 

lib/content-services/src/lib/category/services/category.service.ts

@@ -62,10 +62,15 @@ export class CategoryService {
      * Get a category by ID
      *
      * @param categoryId The identifier of a category.
+     * @param opts Optional parameters.
+     * @param opts.fields A list of field names.
+     * @param opts.include Returns additional information about the category. The following optional fields can be requested:
+     * count
+     * path
      * @return Observable<CategoryEntry>
      */
-    getCategory(categoryId: string): Observable<CategoryEntry> {
-        return from(this.categoriesApi.getCategory(categoryId));
+    getCategory(categoryId: string, opts?: any): Observable<CategoryEntry> {
+        return from(this.categoriesApi.getCategory(categoryId, opts));
     }
 
     /**

lib/content-services/src/lib/search/services/search-facet-filters.service.spec.ts

@@ -34,8 +34,7 @@ describe('SearchFacetFiltersService', () => {
             providers: [{
                 provide: CategoryService,
                 useValue: {
-                    getCategory: () => EMPTY,
-                    searchCategories: () => EMPTY
+                    getCategory: () => EMPTY
                 }
             }]
         });
@@ -472,22 +471,9 @@ describe('SearchFacetFiltersService', () => {
     });
 
     it('should load category names for cm:categories facet', () => {
-        const entry = {id: 'test-id-test', name: 'name'};
+        const entry = {id: 'test-id-test', name: 'name', path: '/categories/General/Test Category/Subcategory'};
         searchFacetFiltersService.responseFacets = null;
         spyOn(categoryService, 'getCategory').and.returnValue(of({entry}));
-        spyOn(categoryService, 'searchCategories').and.returnValue(of({
-                    list: {
-                        entries: [{
-                            entry: {
-                                ...entry,
-                                nodeType: 'node-type',
-                                path: { name: '/categories/General/Test Category/Subcategory'},
-                                isFolder: false,
-                                isFile: false
-                            }
-                        }]
-                    }
-                }));
 
         queryBuilder.config = {
             categories: [],
@@ -521,8 +507,7 @@ describe('SearchFacetFiltersService', () => {
 
         searchFacetFiltersService.onDataLoaded(data);
 
-        expect(categoryService.getCategory).toHaveBeenCalledWith(entry.id);
-        expect(categoryService.searchCategories).toHaveBeenCalledWith(entry.name);
+        expect(categoryService.getCategory).toHaveBeenCalledWith(entry.id, { include: [ 'path' ]});
         expect(searchFacetFiltersService.responseFacets[1].buckets.items[0].display).toBe(`Test Category/Subcategory/${entry.name}`);
         expect(searchFacetFiltersService.responseFacets[1].buckets.length).toEqual(1);
         expect(searchFacetFiltersService.responseFacets.length).toEqual(2);

lib/content-services/src/lib/search/services/search-facet-filters.service.ts

@@ -22,7 +22,7 @@ import { SEARCH_QUERY_SERVICE_TOKEN } from '../search-query-service.token';
 import { SearchQueryBuilderService } from './search-query-builder.service';
 import { TranslationService } from '@alfresco/adf-core';
 import { SearchService } from './search.service';
-import { catchError, concatMap, takeUntil } from 'rxjs/operators';
+import { catchError, takeUntil } from 'rxjs/operators';
 import { GenericBucket, GenericFacetResponse, ResultSetContext, ResultSetPaging } from '@alfresco/js-api';
 import { SearchFilterList } from '../models/search-filter-list.model';
 import { FacetFieldBucket } from '../models/facet-field-bucket.interface';
@@ -345,19 +345,14 @@ export class SearchFacetFiltersService implements OnDestroy {
     private loadCategoryNames(bucketList: FacetFieldBucket[]) {
         bucketList.forEach((item) => {
             const categoryId = item.label.split('/').pop();
-            this.categoryService.getCategory(categoryId)
-                .pipe(
-                    concatMap((categoryEntry) => this.categoryService.searchCategories(categoryEntry.entry.name)),
-                    catchError(error => throwError(error))
-                )
+            this.categoryService.getCategory(categoryId, {include: ['path']})
+                .pipe(catchError(error => throwError(error)))
                 .subscribe(
-                    result => {
+                    category => {
                         const nextAfterGeneralPathPartIndex = 3;
                         const pathSeparator = '/';
-                        const currentCat = result.list.entries.filter(entry => entry.entry.id === categoryId)[0];
-                        const path = currentCat.entry.path.name.split(pathSeparator).slice(nextAfterGeneralPathPartIndex).join('/');
-
-                        item.display = path ? `${path}/${currentCat.entry.name}` : currentCat.entry.name;
+                        const path = category.entry.path.split(pathSeparator).slice(nextAfterGeneralPathPartIndex).join('/');
+                        item.display = path ? `${path}/${category.entry.name}` : category.entry.name;
                     }
                 );
         });