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import { Router } from '@angular/router';
import { Actions, concatLatestFrom, createEffect, ofType } from '@ngrx/effects';
import { routerNavigatedAction } from '@ngrx/router-store';
import { Store, select } from '@ngrx/store';
import { Action } from '@ngrx/store/src/models';
import { from } from 'rxjs';
import { concatMap, map, sample, switchMap, withLatestFrom } from 'rxjs/operators';
import { ProductListingMapper } from 'ish-core/models/product-listing/product-listing.mapper';
import { generateProductUrl } from 'ish-core/routing/product/product.route';
import { ProductsServiceProvider } from 'ish-core/service-provider/products.service-provider';
import { SuggestionsServiceProvider } from 'ish-core/service-provider/suggestions.service-provider';
import { ofUrl, selectRouteParam } from 'ish-core/store/core/router';
import { personalizationStatusDetermined } from 'ish-core/store/customer/user';
import { loadCategorySuccess } from 'ish-core/store/shopping/categories';
import { loadFilterSuccess } from 'ish-core/store/shopping/filter';
import {
getProductListingItemsPerPage,
loadMoreProducts,
setProductListingPages,
} from 'ish-core/store/shopping/product-listing';
import { loadProductSuccess } from 'ish-core/store/shopping/products';
import { HttpStatusCodeService } from 'ish-core/utils/http-status-code/http-status-code.service';
import {
mapErrorToAction,
mapToPayload,
mapToPayloadProperty,
useCombinedObservableOnAction,
whenTruthy,
} from 'ish-core/utils/operators';
import {
addSearchTermToSuggestion,
searchProducts,
searchProductsFail,
suggestSearch,
suggestSearchFail,
suggestSearchSuccess,
} from './search.actions';
@Injectable()
export class SearchEffects {
constructor(
private actions$: Actions,
private store: Store,
private suggestionsServiceProvider: SuggestionsServiceProvider,
private productsServiceProvider: ProductsServiceProvider,
private httpStatusCodeService: HttpStatusCodeService,
private productListingMapper: ProductListingMapper,
private router: Router
) {}
/**
* Effect that listens for search route changes and triggers a search action.
*/
triggerSearch$ = createEffect(() =>
this.store.pipe(
sample(
this.actions$.pipe(
useCombinedObservableOnAction(
this.actions$.pipe(ofType(routerNavigatedAction)),
personalizationStatusDetermined
)
)
),
ofUrl(/^\/search.*/),
withLatestFrom(this.store.pipe(select(selectRouteParam('searchTerm')))),
map(([, searchTerm]) => searchTerm),
whenTruthy(),
concatMap(searchTerm => [
addSearchTermToSuggestion({ searchTerm }),
loadMoreProducts({ id: { type: 'search', value: searchTerm } }),
])
)
);
searchProducts$ = createEffect(() =>
this.actions$.pipe(
ofType(searchProducts),
mapToPayload(),
map(payload => ({ ...payload, page: payload.page ? payload.page : 1 })),
concatLatestFrom(() => this.store.pipe(select(getProductListingItemsPerPage('search')))),
map(([payload, pageSize]) => ({ ...payload, amount: pageSize, offset: (payload.page - 1) * pageSize })),
concatMap(({ searchTerm, amount, offset, sorting, page }) =>
this.productsServiceProvider
.get()
.searchProducts({ searchTerm, amount, offset, sorting })
.pipe(
concatMap(({ total, products, sortableAttributes, filter }) => {
// route to product detail page if only one product was found
Iif (total === 1) {
this.router.navigate([generateProductUrl(products[0])]);
}
// provide the data for the search result page
return [
...products.map(product => loadProductSuccess({ product })),
setProductListingPages(
this.productListingMapper.createPages(
products.map(p => p.sku),
'search',
searchTerm,
amount,
{
startPage: page,
sorting,
sortableAttributes,
itemCount: total,
}
)
),
filter?.length ? loadFilterSuccess({ filterNavigation: { filter } }) : { type: 'no_filter_action' },
];
}),
mapErrorToAction(searchProductsFail)
)
)
)
);
suggestSearch$ =
!SSR &&
createEffect(() =>
this.actions$.pipe(
ofType(suggestSearch),
mapToPayloadProperty('searchTerm'),
switchMap(searchTerm =>
this.suggestionsServiceProvider
.get()
.searchSuggestions(searchTerm)
.pipe(
concatMap(({ suggestions, categories, products }) => {
const actions: Action[] = [suggestSearchSuccess({ suggestions })];
Iif (categories) {
actions.push(loadCategorySuccess({ categories }));
}
Iif (products) {
products.map(product => actions.push(loadProductSuccess({ product })));
}
return actions;
}),
mapErrorToAction(suggestSearchFail)
)
)
)
);
redirectIfSearchProductFail$ = createEffect(
() =>
this.actions$.pipe(
ofType(searchProductsFail),
concatMap(() => from(this.httpStatusCodeService.setStatus(404)))
),
{ dispatch: false }
);
}
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