Merged in CST-12914-ldn-breadcrumbs (pull request #1115)

CST-12914 ldn breadcrumbs

Approved-by: Giuseppe Digilio

src/app/admin/admin-ldn-services/admin-ldn-services-routing.module.ts

@@ -1,12 +1,12 @@
 import { NgModule } from '@angular/core';
-import {RouterModule} from '@angular/router';
+import { RouterModule, Routes } from '@angular/router';
-import {I18nBreadcrumbResolver} from 'src/app/core/breadcrumbs/i18n-breadcrumb.resolver';
 import { LdnServicesOverviewComponent } from './ldn-services-directory/ldn-services-directory.component';
+import { NavigationBreadcrumbResolver } from '../../core/breadcrumbs/navigation-breadcrumb.resolver';
+import { I18nBreadcrumbResolver } from '../../core/breadcrumbs/i18n-breadcrumb.resolver';
 import { LdnServiceFormComponent } from './ldn-service-form/ldn-service-form.component';
 
-@NgModule({
+
-  imports: [
+const moduleRoutes: Routes = [
-    RouterModule.forChild([
   {
     path: '',
     pathMatch: 'full',
@@ -16,17 +16,30 @@ import {LdnServiceFormComponent} from './ldn-service-form/ldn-service-form.compo
   },
   {
     path: 'new',
-        resolve: {breadcrumb: I18nBreadcrumbResolver},
+    resolve: {breadcrumb: NavigationBreadcrumbResolver},
     component: LdnServiceFormComponent,
     data: {title: 'ldn-register-new-service.title', breadcrumbKey: 'ldn-register-new-service'}
   },
   {
     path: 'edit/:serviceId',
-        resolve: {breadcrumb: I18nBreadcrumbResolver},
+    resolve: {breadcrumb: NavigationBreadcrumbResolver},
     component: LdnServiceFormComponent,
     data: {title: 'ldn-edit-service.title', breadcrumbKey: 'ldn-edit-service'}
   },
-    ]),
+];
+
+
+@NgModule({
+  imports: [
+    RouterModule.forChild(moduleRoutes.map(route => {
+      return {...route, data: {
+          ...route.data,
+          relatedRoutes: moduleRoutes.filter(relatedRoute => relatedRoute.path !== route.path)
+            .map((relatedRoute) => {
+              return {path: relatedRoute.path, data: relatedRoute.data};
+            })
+      }};
+    }))
   ]
 })
 export class AdminLdnServicesRoutingModule {

src/app/core/breadcrumbs/navigation-breadcrumb.resolver.spec.ts

@@ -0,0 +1,52 @@
+import { NavigationBreadcrumbResolver } from './navigation-breadcrumb.resolver';
+
+describe('NavigationBreadcrumbResolver', () => {
+  describe('resolve', () => {
+    let resolver: NavigationBreadcrumbResolver;
+    let NavigationBreadcrumbService: any;
+    let i18nKey: string;
+    let relatedI18nKey: string;
+    let route: any;
+    let expectedPath;
+    let state;
+    beforeEach(() => {
+      i18nKey = 'example.key';
+      relatedI18nKey = 'related.key';
+      route = {
+        data: {
+          breadcrumbKey: i18nKey,
+          relatedRoutes: [
+            {
+              path: '',
+              data: {breadcrumbKey: relatedI18nKey},
+            }
+          ]
+        },
+        routeConfig: {
+          path: 'example'
+        },
+        parent: {
+          routeConfig: {
+            path: ''
+          },
+          url: [{
+            path: 'base'
+          }]
+        } as any
+      };
+
+      state = {
+        url: '/base/example'
+      };
+      expectedPath = '/base/example:/base';
+      NavigationBreadcrumbService = {};
+      resolver = new NavigationBreadcrumbResolver(NavigationBreadcrumbService);
+    });
+
+    it('should resolve the breadcrumb config', () => {
+      const resolvedConfig = resolver.resolve(route, state);
+      const expectedConfig = { provider: NavigationBreadcrumbService, key: `${i18nKey}:${relatedI18nKey}`, url: expectedPath };
+      expect(resolvedConfig).toEqual(expectedConfig);
+    });
+  });
+});

src/app/core/breadcrumbs/navigation-breadcrumb.resolver.ts

@@ -0,0 +1,52 @@
+import { BreadcrumbConfig } from '../../breadcrumbs/breadcrumb/breadcrumb-config.model';
+import { Injectable } from '@angular/core';
+import { ActivatedRouteSnapshot, Resolve, RouterStateSnapshot } from '@angular/router';
+import { NavigationBreadcrumbsService } from './navigation-breadcrumb.service';
+
+/**
+ * The class that resolves a BreadcrumbConfig object with an i18n key string for a route and related parents
+ */
+@Injectable({
+  providedIn: 'root'
+})
+export class NavigationBreadcrumbResolver implements Resolve<BreadcrumbConfig<string>> {
+
+  private parentRoutes: ActivatedRouteSnapshot[] = [];
+  constructor(protected breadcrumbService: NavigationBreadcrumbsService) {
+  }
+
+  /**
+   * Method to collect all parent routes snapshot from current route snapshot
+   * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
+   */
+  private getParentRoutes(route: ActivatedRouteSnapshot): void {
+    if (route.parent) {
+      this.parentRoutes.push(route.parent);
+      this.getParentRoutes(route.parent);
+    }
+  }
+  /**
+   * Method for resolving an I18n breadcrumb configuration object
+   * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot
+   * @param {RouterStateSnapshot} state The current RouterStateSnapshot
+   * @returns BreadcrumbConfig object
+   */
+  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): BreadcrumbConfig<string> {
+    this.getParentRoutes(route);
+    const relatedRoutes = route.data.relatedRoutes;
+    const parentPaths = this.parentRoutes.map(parent => parent.routeConfig?.path);
+    const relatedParentRoutes = relatedRoutes.filter(relatedRoute => parentPaths.includes(relatedRoute.path));
+    const baseUrlSegmentPath = route.parent.url[route.parent.url.length - 1].path;
+    const baseUrl = state.url.substring(0, state.url.lastIndexOf(baseUrlSegmentPath) + baseUrlSegmentPath.length);
+
+
+    const combinedParentBreadcrumbKeys = relatedParentRoutes.reduce((previous, current) => {
+      return `${previous}:${current.data.breadcrumbKey}`;
+    }, route.data.breadcrumbKey);
+    const combinedUrls = relatedParentRoutes.reduce((previous, current) => {
+      return `${previous}:${baseUrl}${current.path}`;
+    }, state.url);
+
+    return {provider: this.breadcrumbService, key: combinedParentBreadcrumbKeys, url: combinedUrls};
+  }
+}

src/app/core/breadcrumbs/navigation-breadcrumb.service.ts

@@ -0,0 +1,30 @@
+import { Breadcrumb } from '../../breadcrumbs/breadcrumb/breadcrumb.model';
+import { BreadcrumbsProviderService } from './breadcrumbsProviderService';
+import { Observable, of as observableOf } from 'rxjs';
+import { Injectable } from '@angular/core';
+
+/**
+ * The postfix for i18n breadcrumbs
+ */
+export const BREADCRUMB_MESSAGE_POSTFIX = '.breadcrumbs';
+
+/**
+ * Service to calculate i18n breadcrumbs for a single part of the route
+ */
+@Injectable({
+  providedIn: 'root'
+})
+export class NavigationBreadcrumbsService implements BreadcrumbsProviderService<string> {
+
+  /**
+   * Method to calculate the breadcrumbs
+   * @param key The key used to resolve the breadcrumb
+   * @param url The url to use as a link for this breadcrumb
+   */
+  getBreadcrumbs(key: string, url: string): Observable<Breadcrumb[]> {
+    const keys = key.split(':');
+    const urls = url.split(':');
+    const breadcrumbs = keys.map((currentKey, index) => new Breadcrumb(currentKey + BREADCRUMB_MESSAGE_POSTFIX, urls[index] ));
+    return observableOf(breadcrumbs.reverse());
+  }
+}

src/app/core/breadcrumbs/navigation-breadcrumbs.service.spec.ts

@@ -0,0 +1,43 @@
+import { TestBed, waitForAsync } from '@angular/core/testing';
+import { Breadcrumb } from '../../breadcrumbs/breadcrumb/breadcrumb.model';
+import { getTestScheduler } from 'jasmine-marbles';
+import { BREADCRUMB_MESSAGE_POSTFIX } from './i18n-breadcrumbs.service';
+import { NavigationBreadcrumbsService } from './navigation-breadcrumb.service';
+
+describe('NavigationBreadcrumbsService', () => {
+  let service: NavigationBreadcrumbsService;
+  let exampleString;
+  let exampleURL;
+  let childrenString;
+  let childrenUrl;
+  let parentString;
+  let parentUrl;
+
+  function init() {
+    exampleString = 'example.string:parent.string';
+    exampleURL = 'example.com:parent.com';
+    childrenString = 'example.string';
+    childrenUrl = 'example.com';
+    parentString = 'parent.string';
+    parentUrl = 'parent.com';
+  }
+
+  beforeEach(waitForAsync(() => {
+    init();
+    TestBed.configureTestingModule({}).compileComponents();
+  }));
+
+  beforeEach(() => {
+    service = new NavigationBreadcrumbsService();
+  });
+
+  describe('getBreadcrumbs', () => {
+    it('should return an array of breadcrumbs based on strings by adding the postfix', () => {
+      const breadcrumbs = service.getBreadcrumbs(exampleString, exampleURL);
+      getTestScheduler().expectObservable(breadcrumbs).toBe('(a|)', { a: [
+          new Breadcrumb(childrenString + BREADCRUMB_MESSAGE_POSTFIX, childrenUrl),
+          new Breadcrumb(parentString + BREADCRUMB_MESSAGE_POSTFIX, parentUrl),
+        ].reverse() });
+    });
+  });
+});