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import { TranslateService } from '@ngx-translate/core';
import { RxState } from '@rx-angular/state';
import { isEqual, pick } from 'lodash-es';
import { BehaviorSubject, Observable, combineLatest, race } from 'rxjs';
import {
debounceTime,
distinctUntilChanged,
distinctUntilKeyChanged,
filter,
first,
map,
skip,
skipWhile,
startWith,
switchMap,
take,
} from 'rxjs/operators';
import { AttributeGroupTypes } from 'ish-core/models/attribute-group/attribute-group.types';
import { Image } from 'ish-core/models/image/image.model';
import { Pricing } from 'ish-core/models/price/price.model';
import { ProductLinksDictionary } from 'ish-core/models/product-links/product-links.model';
import { ProductVariationHelper } from 'ish-core/models/product-variation/product-variation.helper';
import { ProductView } from 'ish-core/models/product-view/product-view.model';
import {
ProductCompletenessLevel,
ProductHelper,
SkuQuantityType,
VariationProduct,
VariationProductMaster,
} from 'ish-core/models/product/product.model';
import { Promotion } from 'ish-core/models/promotion/promotion.model';
import { generateProductUrl } from 'ish-core/routing/product/product.route';
import { mapToProperty, whenTruthy } from 'ish-core/utils/operators';
import { ProductContextDisplayPropertiesService } from 'ish-core/utils/product-context-display-properties/product-context-display-properties.service';
import { AppFacade } from './app.facade';
import { ShoppingFacade } from './shopping.facade';
declare type DisplayEval = ((product: ProductView) => boolean) | boolean;
export interface ProductContextDisplayProperties<T = boolean> {
readOnly: T;
name: T;
description: T;
sku: T;
inventory: T;
price: T;
promotions: T;
quantity: T;
variations: T;
bundleParts: T;
retailSetParts: T;
shipment: T;
addToBasket: T;
addToWishlist: T;
addToOrderTemplate: T;
addToCompare: T;
addToQuote: T;
addToNotification: T;
}
const defaultDisplayProperties: ProductContextDisplayProperties<true | undefined> = {
readOnly: undefined,
name: true,
description: true,
sku: true,
inventory: true,
price: true,
promotions: true,
quantity: true,
variations: true,
bundleParts: true,
retailSetParts: true,
shipment: true,
addToBasket: true,
addToWishlist: true,
addToOrderTemplate: true,
addToCompare: true,
addToQuote: true,
addToNotification: true,
};
export interface ExternalDisplayPropertiesProvider {
setup(
context$: Observable<Pick<ProductContext, 'product' | 'prices'>>
): Observable<Partial<ProductContextDisplayProperties<false>>>;
}
export const EXTERNAL_DISPLAY_PROPERTY_PROVIDER = new InjectionToken<ExternalDisplayPropertiesProvider>(
'externalDisplayPropertiesProvider'
);
export interface ProductContext {
sku: string;
requiredCompletenessLevel: ProductCompletenessLevel | true;
product: ProductView;
prices: Pricing;
hasProductError: boolean;
productURL: string;
loading: boolean;
label: string;
categoryId: string;
displayProperties: Partial<ProductContextDisplayProperties>;
// lazy
links: ProductLinksDictionary;
promotions: Promotion[];
parts: SkuQuantityType[];
variations: VariationProduct[];
variationCount: number;
productMaster: VariationProductMaster;
// quantity
quantity: number;
allowZeroQuantity: boolean;
minQuantity: number;
maxQuantity: number;
stepQuantity: number;
quantityError: string;
hasQuantityError: boolean;
// child contexts
propagateActive: boolean;
children: Record<string | number, ProductContext>;
// selected warranty
selectedWarranty: string;
}
@Injectable()
export class ProductContextFacade extends RxState<ProductContext> implements OnDestroy {
private privateConfig$ = new BehaviorSubject<Partial<ProductContextDisplayProperties>>({});
private loggingActive: boolean;
private lazyFieldsInitialized: string[] = [];
set config(config: Partial<ProductContextDisplayProperties>) {
this.privateConfig$.next(config);
}
private validProductSKU$ = this.select('product').pipe(
filter(p => !!p && !p.failed),
mapToProperty('sku')
);
private masterProductSKU$ = this.select('product').pipe(
switchMap(product =>
ProductHelper.isMasterProduct(product) ? this.validProductSKU$ : this.select('product', 'productMasterSKU')
),
whenTruthy()
);
constructor(
private shoppingFacade: ShoppingFacade,
private appFacade: AppFacade,
private translate: TranslateService,
injector: Injector
) {
super();
this.set({
requiredCompletenessLevel: ProductCompletenessLevel.List,
propagateActive: true,
allowZeroQuantity: false,
children: {},
// eslint-disable-next-line unicorn/no-null
categoryId: null,
});
this.connect(
combineLatest([
this.select('sku').pipe(whenTruthy()),
this.select('requiredCompletenessLevel').pipe(whenTruthy()),
]).pipe(
filter(([sku, level]) => !!sku && !!level),
switchMap(([sku, level]) =>
this.shoppingFacade.product$(sku, level).pipe(
map(product => ({
product,
loading: false,
})),
startWith({ loading: true })
)
)
)
);
this.hold(combineLatest([this.select('product'), this.select('displayProperties')]), args =>
this.postProductFetch(...args)
);
this.connect(
'productURL',
combineLatest([
this.select('product'),
this.select('categoryId').pipe(switchMap(categoryId => this.shoppingFacade.category$(categoryId))),
]).pipe(
map(args => generateProductUrl(...args)),
distinctUntilChanged()
)
);
this.connect(
'minQuantity',
combineLatest([this.select('product'), this.select('allowZeroQuantity')]).pipe(
map(([product, allowZeroQuantity]) => (allowZeroQuantity ? 0 : product.minOrderQuantity || 1)),
distinctUntilChanged()
)
);
this.connect(
'maxQuantity',
combineLatest([this.select('product'), this.appFacade.serverSetting$<number>('basket.maxItemQuantity')]).pipe(
map(([product, fromConfig]) => product?.maxOrderQuantity || fromConfig || 100),
distinctUntilChanged()
)
);
this.connect(
'stepQuantity',
this.select('product').pipe(
map(product => product?.stepQuantity || 1),
distinctUntilChanged()
)
);
this.connect(
combineLatest([
this.select('product'),
this.select('minQuantity'),
this.select('maxQuantity'),
this.select('stepQuantity'),
this.select('quantity').pipe(distinctUntilChanged()),
]).pipe(
map(([product, minOrderQuantity, maxOrderQuantity, stepQuantity, quantity]) => {
if (product && !product.failed) {
if (Number.isNaN(quantity)) {
return this.translate.instant('product.quantity.integer.text');
} else if (quantity < minOrderQuantity) {
return this.translate.instant('product.quantity.greaterthan.text', { 0: minOrderQuantity });
} else if (quantity > maxOrderQuantity) {
return this.translate.instant('product.quantity.lessthan.text', { 0: maxOrderQuantity });
} else if (quantity % stepQuantity !== 0) {
return this.translate.instant('product.quantity.step.text', { 0: stepQuantity });
}
}
return;
}),
map(quantityError => ({
quantityError,
hasQuantityError: !!quantityError,
})),
distinctUntilChanged(isEqual)
)
);
this.connect(
'hasQuantityError',
this.select('sku').pipe(
whenTruthy(),
distinctUntilChanged(),
switchMap(() =>
this.select('children').pipe(
map(children => Object.values(children)),
debounceTime(300),
skipWhile(children => !children?.length),
map(children => !children.length || children.some(child => child.hasQuantityError)),
distinctUntilChanged()
)
)
)
);
this.connect(
'quantity',
this.select('product').pipe(
whenTruthy(),
map(p => p.minOrderQuantity),
first()
),
(state, minOrderQuantity) => (state.quantity ??= minOrderQuantity)
);
this.connect(
'quantity',
this.select('product').pipe(
whenTruthy(),
distinctUntilKeyChanged('sku'),
map(p => p.minOrderQuantity),
skip(1)
)
);
this.connect(
'quantity',
this.select('sku').pipe(
whenTruthy(),
distinctUntilChanged(),
switchMap(() =>
this.select('children').pipe(
map(children => Object.values(children)),
debounceTime(300),
skipWhile(children => !children?.length),
map(children =>
children.reduce(
(sum, child) =>
sum +
(Number.isInteger(child.quantity) && !child.hasQuantityError && !child.hasProductError
? child.quantity
: 0),
0
)
),
distinctUntilChanged()
)
)
)
);
this.connect(
'hasProductError',
this.select('product').pipe(
map(product => !!product && (!!product.failed || !product.available)),
distinctUntilChanged()
)
);
this.connect(
'hasProductError',
this.select('sku').pipe(
whenTruthy(),
distinctUntilChanged(),
switchMap(() =>
this.select('children').pipe(
map(children => Object.values(children)),
debounceTime(300),
skipWhile(children => !children?.length),
map(children => !children.length || children.some(child => child.hasProductError)),
distinctUntilChanged()
)
)
)
);
this.connect(
'label',
this.select('product').pipe(
map(
product =>
// eslint-disable-next-line unicorn/no-null
ProductHelper.getAttributesOfGroup(product, AttributeGroupTypes.ProductLabelAttributes)?.[0]?.name || null
),
distinctUntilChanged()
)
);
const externalDisplayPropertyProviders = [
injector.get(ProductContextDisplayPropertiesService),
...injector.get<ExternalDisplayPropertiesProvider[]>(EXTERNAL_DISPLAY_PROPERTY_PROVIDER, []),
].map(edp =>
edp.setup(
this.select().pipe(
map(context => pick(context, 'product', 'prices')),
distinctUntilChanged(isEqual)
)
)
);
const internalDisplayProperty$ = combineLatest([this.select('product'), this.privateConfig$]).pipe(
map(([product, privateConfig]) =>
Object.entries(defaultDisplayProperties)
.map(([k, v]: [keyof ProductContextDisplayProperties, DisplayEval]) => [k, privateConfig?.[k] ?? v])
.reduce<Partial<ProductContextDisplayProperties>>(
(acc, [k, v]: [keyof ProductContextDisplayProperties, DisplayEval]) => {
acc[k] = typeof v === 'function' ? v(product) : v;
return acc;
},
{}
)
)
);
this.connect('displayProperties', this.privateConfig$);
this.connect(
'displayProperties',
combineLatest([internalDisplayProperty$, ...externalDisplayPropertyProviders]).pipe(
map(props => props.reduce((acc, p) => ({ ...acc, ...p }), {}))
)
);
// set display properties for a parent context
this.connect(
'displayProperties',
race(
this.select('children').pipe(
skipWhile(children => !children || !Object.values(children)?.length),
map(() => true)
),
this.select().pipe(
map(context => context.parts),
skipWhile(parts => !parts?.length),
map(() => true)
),
this.select('sku').pipe(map(() => false))
).pipe(take(1)),
(state, setStandaloneProperties) =>
setStandaloneProperties
? {
...state.displayProperties,
readOnly: state.displayProperties.readOnly ?? true,
addToBasket: state.displayProperties.addToBasket ?? true,
}
: state.displayProperties
);
}
private get isMaximumLevel(): boolean {
return (
this.get('requiredCompletenessLevel') === ProductCompletenessLevel.Detail ||
this.get('requiredCompletenessLevel') === true
);
}
private postProductFetch(product: ProductView, displayProperties: Partial<ProductContextDisplayProperties>) {
if (
(ProductHelper.isRetailSet(product) || ProductHelper.isMasterProduct(product)) &&
displayProperties.price &&
!this.isMaximumLevel
) {
this.set('requiredCompletenessLevel', () => ProductCompletenessLevel.Detail);
}
}
select(): Observable<ProductContext>;
select<K1 extends keyof ProductContext>(k1: K1): Observable<ProductContext[K1]>;
select<K1 extends keyof ProductContext, K2 extends keyof ProductContext[K1]>(
k1: K1,
k2: K2
): Observable<ProductContext[K1][K2]>;
select<K1 extends keyof ProductContext, K2 extends keyof ProductContext[K1]>(k1?: K1, k2?: K2) {
const wrap = <K extends keyof ProductContext>(key: K, obs: Observable<ProductContext[K]>) => {
if (!this.lazyFieldsInitialized.includes(key)) {
this.connect(key, obs);
this.lazyFieldsInitialized.push(key);
}
};
switch (k1) {
case 'variations':
wrap('variations', this.shoppingFacade.productVariations$(this.masterProductSKU$));
break;
case 'variationCount':
wrap('variationCount', this.shoppingFacade.productVariationCount$(this.validProductSKU$));
break;
case 'productMaster':
wrap(
'productMaster',
this.shoppingFacade
.product$(this.masterProductSKU$, ProductCompletenessLevel.List)
.pipe(filter(ProductHelper.isMasterProduct))
);
case 'links':
wrap('links', this.shoppingFacade.productLinks$(this.validProductSKU$));
break;
case 'promotions':
wrap(
'promotions',
combineLatest([this.select('displayProperties', 'promotions'), this.select('product', 'promotionIds')]).pipe(
filter(([visible]) => !!visible),
switchMap(([, ids]) => this.shoppingFacade.promotions$(ids))
)
);
break;
case 'parts':
wrap(
'parts',
combineLatest([
this.select('displayProperties', 'bundleParts'),
this.select('displayProperties', 'retailSetParts'),
]).pipe(
filter(([a, b]) => a || b),
switchMap(() => this.shoppingFacade.productParts$(this.validProductSKU$))
)
);
break;
case 'prices':
wrap(
'prices',
combineLatest([
this.select('displayProperties', 'price'),
this.select('product').pipe(
filter(p => !!p && !p.failed),
mapToProperty('sku'),
distinctUntilChanged()
),
this.select('requiredCompletenessLevel').pipe(
map(completeness => completeness === true),
distinctUntilChanged()
),
]).pipe(
filter(([visible]) => !!visible),
switchMap(([, sku, fresh]) => this.shoppingFacade.productPrices$(sku, fresh))
)
);
break;
}
return k2 ? super.select(k1, k2) : k1 ? super.select(k1) : super.select();
}
log(val: boolean) {
Iif (!this.loggingActive) {
this.hold(this.select().pipe(filter(() => !!val)), ctx => {
// eslint-disable-next-line no-console
console.log(ctx);
});
}
}
changeVariationOption(name: string, value: string) {
this.set('sku', () =>
ProductVariationHelper.findPossibleVariation(name, value, this.get('product'), this.get('variations'))
);
}
addToBasket() {
let items: SkuQuantityType[];
if (Object.values(this.get('children'))?.length) {
items = Object.values(this.get('children'));
} else if (this.get('parts')?.length && !ProductHelper.isProductBundle(this.get('product'))) {
items = this.get('parts');
} else {
items = [this.get()];
}
items
.filter(x => !!x && !!x.quantity)
.forEach(child => {
this.shoppingFacade.addProductToBasket(child.sku, child.quantity, this.get('selectedWarranty'));
});
}
validDebouncedQuantityUpdate$(time = 800) {
return this.select('quantity').pipe(
debounceTime(time),
filter(() => !this.get('hasQuantityError')),
distinctUntilChanged(),
skip(1)
);
}
getProductImage$(imageType: string, imageView: string): Observable<Image> {
return this.select('product').pipe(
whenTruthy(),
map(product =>
imageView
? ProductHelper.getImageByImageTypeAndImageView(product, imageType, imageView)
: ProductHelper.getPrimaryImage(product, imageType)
)
);
}
setSelectedWarranty(selectedWarranty: string) {
this.set('selectedWarranty', () => selectedWarranty);
}
ngOnDestroy(): void {
if (this.get('propagateActive')) {
this.set('propagateActive', () => false);
}
super.ngOnDestroy();
}
}
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