import { inject } from '@angular/core'; import { ActivatedRouteSnapshot, ResolveFn, RouterStateSnapshot, } from '@angular/router'; import { Store } from '@ngrx/store'; import { Observable } from 'rxjs'; import { AppState } from '../app.reducer'; import { CollectionDataService } from '../core/data/collection-data.service'; import { RemoteData } from '../core/data/remote-data'; import { ResolvedAction } from '../core/resolving/resolver.actions'; import { Collection } from '../core/shared/collection.model'; import { getFirstCompletedRemoteData } from '../core/shared/operators'; import { followLink, FollowLinkConfig, } from '../shared/utils/follow-link-config.model'; /** * The self links defined in this list are expected to be requested somewhere in the near future * Requesting them as embeds will limit the number of requests */ export const COLLECTION_PAGE_LINKS_TO_FOLLOW: FollowLinkConfig<Collection>[] = [ followLink('parentCommunity', {}, followLink('parentCommunity'), ), followLink('logo'), ]; /** * Method for resolving a collection based on the parameters in the current route * @param {ActivatedRouteSnapshot} route The current ActivatedRouteSnapshot * @param {RouterStateSnapshot} state The current RouterStateSnapshot * @param collectionService * @param store * @returns Observable<<RemoteData<Collection>> Emits the found collection based on the parameters in the current route, * or an error if something went wrong */ export const collectionPageResolver: ResolveFn<RemoteData<Collection>> = ( route: ActivatedRouteSnapshot, state: RouterStateSnapshot, collectionService: CollectionDataService = inject(CollectionDataService), store: Store<AppState> = inject(Store<AppState>), ): Observable<RemoteData<Collection>> => { const collectionRD$ = collectionService.findById( route.params.id, true, false, ...COLLECTION_PAGE_LINKS_TO_FOLLOW, ).pipe( getFirstCompletedRemoteData(), ); collectionRD$.subscribe((collectionRD: RemoteData<Collection>) => { store.dispatch(new ResolvedAction(state.url, collectionRD.payload)); }); return collectionRD$; };