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import { Injectable } from '@angular/core';
import { range } from 'lodash-es';
import { Observable, from, identity, of, throwError } from 'rxjs';
import { defaultIfEmpty, map, mergeMap, switchMap, toArray, withLatestFrom } from 'rxjs/operators';
import { AppFacade } from 'ish-core/facades/app.facade';
import { AttributeGroupTypes } from 'ish-core/models/attribute-group/attribute-group.types';
import { CategoryHelper } from 'ish-core/models/category/category.model';
import { Link } from 'ish-core/models/link/link.model';
import { ProductLinksDictionary } from 'ish-core/models/product-links/product-links.model';
import { SortableAttributesType } from 'ish-core/models/product-listing/product-listing.model';
import { ProductData, ProductDataStub, ProductVariationLink } from 'ish-core/models/product/product.interface';
import { ProductMapper } from 'ish-core/models/product/product.mapper';
import {
Product,
ProductHelper,
SkuQuantityType,
VariationProduct,
VariationProductMaster,
} from 'ish-core/models/product/product.model';
import { ApiService, unpackEnvelope } from 'ish-core/services/api/api.service';
import { omit } from 'ish-core/utils/functions';
import { mapToProperty } from 'ish-core/utils/operators';
import { URLFormParams, appendFormParamsToHttpParams } from 'ish-core/utils/url-form-params';
import STUB_ATTRS from './products-list-attributes';
/**
* The Products Service handles the interaction with the 'products' REST API.
*/
@Injectable({ providedIn: 'root' })
export class ProductsService {
constructor(private apiService: ApiService, private productMapper: ProductMapper, private appFacade: AppFacade) {}
/**
* Get the full Product data for the given Product SKU.
*
* @param sku The Product SKU for the product of interest.
* @returns The Product data.
*/
getProduct(sku: string): Observable<Product> {
Iif (!sku) {
return throwError(() => new Error('getProduct() called without a sku'));
}
const params = new HttpParams().set('allImages', true).set('extended', true);
return this.apiService
.get<ProductData>(`products/${this.apiService.encodeResourceId(sku)}`, { sendSPGID: true, params })
.pipe(map(element => this.productMapper.fromData(element)));
}
/**
* Get a sorted list of all products (as SKU list) assigned to a given Category respecting pagination.
*
* @param categoryUniqueId The unique Category ID.
* @param page The page to request (1-based numbering)
* @param sortKey The sortKey to sort the list, default value is ''.
* @returns A list of the categories products SKUs [skus], the unique Category ID [categoryUniqueId] and a list of possible sort keys [sortKeys].
*/
getCategoryProducts(
categoryUniqueId: string,
amount: number,
sortKey?: string,
offset = 0
): Observable<{ products: Product[]; sortableAttributes: SortableAttributesType[]; total: number }> {
Iif (!categoryUniqueId) {
return throwError(() => new Error('getCategoryProducts() called without categoryUniqueId'));
}
let params = new HttpParams()
.set('attrs', STUB_ATTRS)
.set('attributeGroup', AttributeGroupTypes.ProductLabelAttributes)
.set('amount', amount.toString())
.set('offset', offset.toString())
.set('returnSortKeys', 'true')
.set('productFilter', 'fallback_searchquerydefinition');
Iif (sortKey && sortKey !== 'default') {
params = params.set('sortKey', sortKey);
}
return this.apiService
.get<{
elements: ProductDataStub[];
sortableAttributes: { [id: string]: SortableAttributesType };
categoryUniqueId: string;
total: number;
}>(`categories/${CategoryHelper.getCategoryPath(categoryUniqueId)}/products`, { sendSPGID: true, params })
.pipe(
map(response => ({
products: response.elements.map((element: ProductDataStub) => this.productMapper.fromStubData(element)),
sortableAttributes: Object.values(response.sortableAttributes || {}),
total: response.total ? response.total : response.elements.length,
})),
withLatestFrom(
this.appFacade.serverSetting$<boolean>('preferences.ChannelPreferences.EnableAdvancedVariationHandling')
),
map(([{ products, sortableAttributes, total }, advancedVariationHandling]) => ({
products: this.postProcessMasters(products, advancedVariationHandling),
sortableAttributes,
total,
}))
);
}
/**
* Get products for a given search term respecting pagination.
*
* @param searchTerm The search term to look for matching products.
* @param page The page to request (1-based numbering)
* @param sortKey The sortKey to sort the list, default value is ''.
* @returns A list of matching Product stubs with a list of possible sort keys and the total amount of results.
*/
searchProducts(
searchTerm: string,
amount: number,
sortKey?: string,
offset = 0
): Observable<{ products: Product[]; sortableAttributes: SortableAttributesType[]; total: number }> {
Iif (!searchTerm) {
return throwError(() => new Error('searchProducts() called without searchTerm'));
}
let params = new HttpParams()
.set('searchTerm', searchTerm)
.set('amount', amount.toString())
.set('offset', offset.toString())
.set('attrs', STUB_ATTRS)
.set('attributeGroup', AttributeGroupTypes.ProductLabelAttributes)
.set('returnSortKeys', 'true');
Iif (sortKey && sortKey !== 'default') {
params = params.set('sortKey', sortKey);
}
return this.apiService
.get<{
elements: ProductDataStub[];
sortKeys: string[];
sortableAttributes: { [id: string]: SortableAttributesType };
total: number;
}>('products', { sendSPGID: true, params })
.pipe(
map(response => ({
products: response.elements.map(element => this.productMapper.fromStubData(element)),
sortableAttributes: Object.values(response.sortableAttributes || {}),
total: response.total ? response.total : response.elements.length,
})),
withLatestFrom(
this.appFacade.serverSetting$<boolean>('preferences.ChannelPreferences.EnableAdvancedVariationHandling')
),
map(([{ products, sortableAttributes, total }, advancedVariationHandling]) => ({
products: this.postProcessMasters(products, advancedVariationHandling),
sortableAttributes,
total,
}))
);
}
getProductsForMaster(
masterSKU: string,
amount: number,
sortKey?: string,
offset = 0
): Observable<{ products: Product[]; sortableAttributes: SortableAttributesType[]; total: number }> {
Iif (!masterSKU) {
return throwError(() => new Error('getProductsForMaster() called without masterSKU'));
}
let params = new HttpParams()
.set('MasterSKU', masterSKU)
.set('amount', amount.toString())
.set('offset', offset.toString())
.set('attrs', STUB_ATTRS)
.set('attributeGroup', AttributeGroupTypes.ProductLabelAttributes)
.set('returnSortKeys', 'true');
Iif (sortKey && sortKey !== 'default') {
params = params.set('sortKey', sortKey);
}
return this.apiService
.get<{
elements: ProductDataStub[];
sortableAttributes: { [id: string]: SortableAttributesType };
total: number;
}>('products', { sendSPGID: true, params })
.pipe(
map(response => ({
products: response.elements.map(element => this.productMapper.fromStubData(element)) as Product[],
sortableAttributes: Object.values(response.sortableAttributes || {}),
total: response.total ? response.total : response.elements.length,
}))
);
}
getFilteredProducts(
searchParameter: URLFormParams,
amount: number,
sortKey?: string,
offset = 0
): Observable<{ total: number; products: Partial<Product>[]; sortableAttributes: SortableAttributesType[] }> {
let params = new HttpParams()
.set('amount', amount ? amount.toString() : '')
.set('offset', offset.toString())
.set('attrs', STUB_ATTRS)
.set('attributeGroup', AttributeGroupTypes.ProductLabelAttributes)
.set('returnSortKeys', 'true');
Iif (sortKey && sortKey !== 'default') {
params = params.set('sortKey', sortKey);
}
params = appendFormParamsToHttpParams(omit(searchParameter, 'category'), params);
const resource = searchParameter.category
? `categories/${this.apiService.encodeResourceId(searchParameter.category[0])}/products`
: 'products';
return this.apiService
.get<{
total: number;
elements: ProductDataStub[];
sortableAttributes: { [id: string]: SortableAttributesType };
}>(resource, { params, sendSPGID: true })
.pipe(
map(x => ({
products: x.elements.map(stub => this.productMapper.fromStubData(stub)),
total: x.total,
sortableAttributes: Object.values(x.sortableAttributes || {}),
})),
withLatestFrom(
this.appFacade.serverSetting$<boolean>('preferences.ChannelPreferences.EnableAdvancedVariationHandling')
),
map(([{ products, sortableAttributes, total }, advancedVariationHandling]) => ({
products: params.has('MasterSKU') ? products : this.postProcessMasters(products, advancedVariationHandling),
sortableAttributes,
total,
}))
);
}
/**
* exchange single-return variation products to master products for B2B
*/
private postProcessMasters(products: Partial<Product>[], advancedVariationHandling: boolean): Product[] {
Iif (advancedVariationHandling) {
return products.map(p =>
ProductHelper.isVariationProduct(p) ? { sku: p.productMasterSKU, completenessLevel: 0 } : p
) as Product[];
}
return products as Product[];
}
/**
* Get product variations for the given master product sku.
*/
getProductVariations(sku: string): Observable<{
products: Partial<VariationProduct>[];
defaultVariation: string;
masterProduct: Partial<VariationProductMaster>;
}> {
Iif (!sku) {
return throwError(() => new Error('getProductVariations() called without a sku'));
}
const params = new HttpParams().set('extended', true);
return this.apiService
.get<{ elements: Link[]; total: number; amount: number }>(
`products/${this.apiService.encodeResourceId(sku)}/variations`,
{
sendSPGID: true,
params,
}
)
.pipe(
switchMap(resp =>
!resp.total
? of(resp.elements)
: of(resp).pipe(
mergeMap(res => {
const amount = res.amount;
const chunks = Math.ceil((res.total - amount) / amount);
return from(
range(1, chunks + 1)
.map(i => [i * amount, Math.min(amount, res.total - amount * i)])
.map(([offset, length]) =>
this.apiService
.get<{ elements: Link[] }>(`products/${this.apiService.encodeResourceId(sku)}/variations`, {
sendSPGID: true,
params: params.set('amount', length).set('offset', offset),
})
.pipe(mapToProperty('elements'))
)
);
}),
mergeMap(identity, 2),
toArray(),
map(resp2 => [...resp.elements, ...resp2.flat()])
)
),
map((links: ProductVariationLink[]) => ({
products: links.map(link => this.productMapper.fromVariationLink(link, sku)),
defaultVariation: ProductMapper.findDefaultVariation(links),
})),
map(data => ({ ...data, masterProduct: ProductMapper.constructMasterStub(sku, data.products) })),
defaultIfEmpty({ products: [], defaultVariation: undefined, masterProduct: undefined })
);
}
/**
* get product bundle information for the given bundle sku.
*/
getProductBundles(sku: string): Observable<{ stubs: Partial<Product>[]; bundledProducts: SkuQuantityType[] }> {
Iif (!sku) {
return throwError(() => new Error('getProductBundles() called without a sku'));
}
return this.apiService.get(`products/${this.apiService.encodeResourceId(sku)}/bundles`, { sendSPGID: true }).pipe(
unpackEnvelope<Link>(),
map(links => ({
stubs: links.map(link => this.productMapper.fromLink(link)),
bundledProducts: this.productMapper.fromProductBundleData(links),
}))
);
}
/**
* get product retail set information for the given retail set sku.
*/
getRetailSetParts(sku: string): Observable<Partial<Product>[]> {
Iif (!sku) {
return throwError(() => new Error('getRetailSetParts() called without a sku'));
}
return this.apiService
.get(`products/${this.apiService.encodeResourceId(sku)}/partOfRetailSet`, { sendSPGID: true })
.pipe(
unpackEnvelope<Link>(),
map(links => links.map(link => this.productMapper.fromRetailSetLink(link))),
defaultIfEmpty([])
);
}
getProductLinks(sku: string): Observable<ProductLinksDictionary> {
return this.apiService.get(`products/${this.apiService.encodeResourceId(sku)}/links`, { sendSPGID: true }).pipe(
unpackEnvelope<{ linkType: string; categoryLinks: Link[]; productLinks: Link[] }>(),
map(links =>
links.reduce(
(acc, link) => ({
...acc,
[link.linkType]: {
products: !link.productLinks
? []
: link.productLinks.map(pl => pl.uri).map(ProductMapper.parseSkuFromURI),
categories: !link.categoryLinks
? []
: link.categoryLinks.map(cl =>
cl.uri.split('/categories/')[1].replace('/', CategoryHelper.uniqueIdSeparator)
),
},
}),
{}
)
)
);
}
}
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