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import { Store, select } from '@ngrx/store';
import { isEqual } from 'lodash-es';
import { Observable, combineLatest, identity } from 'rxjs';
import { debounce, distinctUntilChanged, filter, map, pairwise, startWith, switchMap, tap } from 'rxjs/operators';
import { PRICE_UPDATE } from 'ish-core/configurations/injection-keys';
import { PriceItemHelper } from 'ish-core/models/price-item/price-item.helper';
import { ProductListingID } from 'ish-core/models/product-listing/product-listing.model';
import { ProductCompletenessLevel, ProductHelper } from 'ish-core/models/product/product.model';
import { selectRouteParam } from 'ish-core/store/core/router';
import { addProductToBasket } from 'ish-core/store/customer/basket';
import { getPriceDisplayType } from 'ish-core/store/customer/user';
import {
getCategory,
getCategoryIdByRefId,
getNavigationCategories,
getNavigationCategoryTree,
getSelectedCategory,
loadCategoryByRef,
loadCategoryTree,
loadTopLevelCategories,
} from 'ish-core/store/shopping/categories';
import { getAvailableFilter } from 'ish-core/store/shopping/filter';
import {
getProductListingLoading,
getProductListingView,
getProductListingViewType,
loadMoreProducts,
} from 'ish-core/store/shopping/product-listing';
import { loadProductPrices } from 'ish-core/store/shopping/product-prices';
import { getProductPrice } from 'ish-core/store/shopping/product-prices/product-prices.selectors';
import {
getFailedProducts,
getProduct,
getProductLinks,
getProductParts,
getProductVariationCount,
getProductVariations,
loadProduct,
loadProductIfNotLoaded,
loadProductLinks,
loadProductParts,
loadProductVariationsIfNotLoaded,
} from 'ish-core/store/shopping/products';
import { getPromotion, getPromotions, loadPromotion } from 'ish-core/store/shopping/promotions';
import { getSearchTerm, getSuggestSearchResults, suggestSearch } from 'ish-core/store/shopping/search';
import { getWarranty, getWarrantyError, getWarrantyLoading, warrantyActions } from 'ish-core/store/shopping/warranties';
import { toObservable } from 'ish-core/utils/functions';
import { InjectSingle } from 'ish-core/utils/injection';
import { mapToProperty, whenFalsy, whenTruthy } from 'ish-core/utils/operators';
/* eslint-disable @typescript-eslint/member-ordering */
@Injectable({ providedIn: 'root' })
export class ShoppingFacade {
constructor(private store: Store, @Inject(PRICE_UPDATE) private priceUpdate: InjectSingle<typeof PRICE_UPDATE>) {}
// CATEGORY
selectedCategory$ = this.store.pipe(select(getSelectedCategory));
selectedCategoryId$ = this.store.pipe(select(selectRouteParam('categoryUniqueId')));
category$(uniqueId: string) {
return this.store.pipe(select(getCategory(uniqueId)));
}
categoryIdByRefId$(categoryRefId: string) {
this.store.dispatch(loadCategoryByRef({ categoryId: categoryRefId }));
return this.store.pipe(select(getCategoryIdByRefId(categoryRefId)));
}
navigationCategories$(uniqueId?: string) {
Iif (!uniqueId) {
this.store.dispatch(loadTopLevelCategories());
}
return this.store.pipe(
select(getNavigationCategories(uniqueId)),
// prevent to display an empty navigation bar after login/logout);
filter(categories => !!categories?.length)
);
}
navigationCategoryTree$(categoryRef: string, depth: number) {
this.store.dispatch(loadCategoryTree({ categoryRef, depth }));
return this.store.pipe(select(getNavigationCategoryTree(categoryRef, depth)));
}
// PRODUCT
selectedProductId$ = this.store.pipe(select(selectRouteParam('sku')));
product$(sku: string | Observable<string>, level: ProductCompletenessLevel | true) {
const completenessLevel = level === true ? ProductCompletenessLevel.Detail : level;
return toObservable(sku).pipe(
tap(plainSKU => {
if (level === true) {
this.store.dispatch(loadProduct({ sku: plainSKU }));
} else E{
this.store.dispatch(loadProductIfNotLoaded({ sku: plainSKU, level }));
}
}),
switchMap(plainSKU =>
this.store.pipe(
select(getProduct(plainSKU)),
startWith(undefined),
pairwise(),
tap(([prev, curr]) => {
Iif (
ProductHelper.isReadyForDisplay(prev, completenessLevel) &&
!ProductHelper.isReadyForDisplay(curr, completenessLevel)
) {
level === true
? this.store.dispatch(loadProduct({ sku: plainSKU }))
: this.store.dispatch(loadProductIfNotLoaded({ sku: plainSKU, level }));
}
}),
map(([, curr]) => curr),
filter(p => ProductHelper.isReadyForDisplay(p, completenessLevel))
)
)
);
}
failedProducts$ = this.store.pipe(select(getFailedProducts));
// remove all SKUs from the productSKUs that are also contained in the failed products
excludeFailedProducts$(productSKUs: string[] | Observable<string[]>) {
return combineLatest([toObservable(productSKUs), this.store.pipe(select(getFailedProducts))]).pipe(
distinctUntilChanged<[string[], string[]]>(isEqual),
map(([skus, failed]) => skus.filter(sku => !failed.includes(sku)))
);
}
productPrices$(sku: string | Observable<string>, fresh = false) {
return toObservable(sku).pipe(
whenTruthy(),
switchMap(plainSKU =>
combineLatest([
this.store.pipe(
select(getProductPrice(plainSKU)),
// reset state when updates are forced
this.priceUpdate === 'always' || fresh ? startWith(undefined) : identity,
distinctUntilChanged(),
tap(prices => {
Iif (!prices) {
this.store.dispatch(loadProductPrices({ skus: [plainSKU] }));
}
}),
whenTruthy()
),
this.store.pipe(select(getPriceDisplayType)),
]).pipe(map(args => PriceItemHelper.selectPricing(...args)))
)
);
}
private lazyLoadVariations(sku: string | Observable<string>) {
return this.product$(sku, ProductCompletenessLevel.List).pipe(
whenTruthy(),
filter(ProductHelper.isMasterProduct),
mapToProperty('sku'),
distinctUntilChanged(),
tap(sku => {
this.store.dispatch(loadProductVariationsIfNotLoaded({ sku }));
})
);
}
productVariations$(sku: string | Observable<string>) {
return this.lazyLoadVariations(sku).pipe(switchMap(sku => this.store.pipe(select(getProductVariations(sku)))));
}
productVariationCount$(sku: string | Observable<string>) {
return this.lazyLoadVariations(sku).pipe(
switchMap(plainSKU => this.store.pipe(select(getProductVariationCount(plainSKU))))
);
}
// CHECKOUT
addProductToBasket(sku: string, quantity: number, warrantySku?: string) {
this.store.dispatch(addProductToBasket({ sku, quantity, warrantySku }));
}
// PRODUCT LISTING
productListingView$(id: ProductListingID | Observable<ProductListingID>) {
return toObservable(id).pipe(
whenTruthy(),
tap(id => this.store.dispatch(loadMoreProducts({ id }))),
switchMap(id => this.store.pipe(select(getProductListingView(id))))
);
}
productListingViewType$ = this.store.pipe(select(getProductListingViewType));
productListingLoading$ = this.store.pipe(select(getProductListingLoading));
loadMoreProducts(id: ProductListingID, page: number) {
this.store.dispatch(loadMoreProducts({ id, page }));
}
// PRODUCT LINKS
productLinks$(sku: string | Observable<string>) {
return toObservable(sku).pipe(
whenTruthy(),
switchMap(plainSKU =>
this.store.pipe(
select(getProductLinks(plainSKU)),
tap(links => {
Iif (!links) {
this.store.dispatch(loadProductLinks({ sku: plainSKU }));
}
})
)
)
);
}
// PRODUCT RETAIL SET / BUNDLES
productParts$(sku: string | Observable<string>) {
return toObservable(sku).pipe(
whenTruthy(),
tap(plainSKU => {
this.store.dispatch(loadProductParts({ sku: plainSKU }));
}),
switchMap(plainSKU => this.store.pipe(select(getProductParts(plainSKU))))
);
}
// SEARCH
searchTerm$ = this.store.pipe(select(getSearchTerm));
searchResults$(searchTerm: Observable<string>) {
return searchTerm.pipe(
tap(term => this.store.dispatch(suggestSearch({ searchTerm: term }))),
switchMap(term => this.store.pipe(select(getSuggestSearchResults(term))))
);
}
searchLoading$ = this.store.pipe(select(getProductListingLoading));
searchItemsCount$ = this.searchTerm$.pipe(
debounce(() => this.store.pipe(select(getProductListingLoading), whenFalsy())),
switchMap(term =>
this.store.pipe(
select(getProductListingView({ type: 'search', value: term })),
map(view => view.itemCount)
)
)
);
// FILTER
currentFilter$(withCategoryFilter: boolean) {
return this.store.pipe(
select(getAvailableFilter),
whenTruthy(),
map(x => (withCategoryFilter ? x : { ...x, filter: x.filter?.filter(f => f.id !== 'CategoryUUIDLevelMulti') }))
);
}
// PROMOTIONS
promotion$(promotionId: string) {
this.store.dispatch(loadPromotion({ promoId: promotionId }));
return this.store.pipe(select(getPromotion(promotionId)));
}
promotions$(promotionIds: string[]) {
promotionIds.forEach(promotionId => {
this.store.dispatch(loadPromotion({ promoId: promotionId }));
});
return this.store.pipe(select(getPromotions(promotionIds)));
}
// WARRANTIES
warrantyById$(warrantyId: string) {
this.store.dispatch(warrantyActions.loadWarranty({ warrantyId }));
return this.store.pipe(select(getWarranty(warrantyId)));
}
warrantyError$ = this.store.pipe(select(getWarrantyError));
warrantyLoading$ = this.store.pipe(select(getWarrantyLoading));
}
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