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import { Router } from '@angular/router';
import { Actions, concatLatestFrom, createEffect, ofType } from '@ngrx/effects';
import { Store, select } from '@ngrx/store';
import { from } from 'rxjs';
import { concatMap, debounceTime, filter, map, mergeMap, switchMap, toArray, window } from 'rxjs/operators';
import { CustomFieldDefinition } from 'ish-core/models/custom-field-definition/custom-field-definition.model';
import { CustomFieldMapper } from 'ish-core/models/custom-field/custom-field.mapper';
import { LineItemUpdate } from 'ish-core/models/line-item-update/line-item-update.model';
import { BasketItemUpdateType, BasketItemsService } from 'ish-core/services/basket-items/basket-items.service';
import { BasketService } from 'ish-core/services/basket/basket.service';
import { getCustomFieldsForScope } from 'ish-core/store/core/server-config';
import { getProductEntities, loadProduct } from 'ish-core/store/shopping/products';
import { mapErrorToAction, mapToPayload, mapToPayloadProperty } from 'ish-core/utils/operators';
import {
addItemsToBasket,
addItemsToBasketFail,
addItemsToBasketSuccess,
addProductToBasket,
createBasketFail,
createBasketSuccess,
deleteBasketItem,
deleteBasketItemFail,
deleteBasketItemSuccess,
deleteBasketItems,
deleteBasketItemsFail,
deleteBasketItemsSuccess,
loadBasket,
updateBasketItem,
updateBasketItemFail,
updateBasketItemSuccess,
validateBasket,
} from './basket.actions';
import { getCurrentBasket, getCurrentBasketId } from './basket.selectors';
@Injectable()
export class BasketItemsEffects {
constructor(
private actions$: Actions,
private router: Router,
private store: Store,
private basketService: BasketService,
private basketItemsService: BasketItemsService
) {}
/**
* Add a product to the current basket.
* Triggers the internal action that handles the actual adding of the product to the basket.
*/
addProductToBasket$ = createEffect(() =>
this.actions$.pipe(
ofType(addProductToBasket),
mapToPayload(),
// add unit
concatLatestFrom(() => this.store.pipe(select(getProductEntities))),
map(([val, entities]) => ({ ...val, unit: entities[val.sku]?.packingUnit })),
// accumulate all actions
window(this.actions$.pipe(ofType(addProductToBasket), debounceTime(500))),
mergeMap(window$ => window$.pipe(toArray())),
filter(items => items.length > 0),
map(items => addItemsToBasket({ items }))
)
);
addItemsToBasket$ = createEffect(() =>
this.actions$.pipe(
ofType(addItemsToBasket),
mapToPayload(),
concatLatestFrom(() => this.store.pipe(select(getCurrentBasketId))),
concatMap(([{ items }, basketId]) => {
if (basketId) {
return this.basketItemsService.addItemsToBasket(items).pipe(
map(payload => addItemsToBasketSuccess(payload)),
mapErrorToAction(addItemsToBasketFail)
);
} else {
return this.basketService.createBasket().pipe(
switchMap(basket =>
this.basketItemsService.addItemsToBasket(items).pipe(
mergeMap(payload => [createBasketSuccess({ basket }), addItemsToBasketSuccess(payload)]),
mapErrorToAction(addItemsToBasketFail)
)
),
mapErrorToAction(createBasketFail)
);
}
})
)
);
/**
* Reload products when they are added to basket to update price and availability information
*/
loadProductsForAddItemsToBasket$ = createEffect(() =>
this.actions$.pipe(
ofType(addItemsToBasket),
mapToPayload(),
mergeMap(payload => [...payload.items.map(item => loadProduct({ sku: item.sku }))])
)
);
updateBasketItem$ = createEffect(() =>
this.actions$.pipe(
ofType(updateBasketItem),
mapToPayloadProperty('lineItemUpdate'),
concatLatestFrom(() => this.store.pipe(select(getCurrentBasket))),
filter(([payload, basket]) => !!basket.lineItems && !!payload),
concatLatestFrom(() => this.store.pipe(select(getCustomFieldsForScope('BasketLineItem')))),
concatMap(([[lineItem], customFieldDefinitions]) =>
this.basketItemsService
.updateBasketItem(lineItem.itemId, this.mapLineItemUpdate(lineItem, customFieldDefinitions))
.pipe(
map(payload => updateBasketItemSuccess(payload)),
mapErrorToAction(updateBasketItemFail)
)
)
)
);
/**
* Validates the basket after an update item error occurred
*/
validateBasketAfterUpdateFailure$ = createEffect(() =>
this.actions$.pipe(
ofType(updateBasketItemFail),
mapToPayload(),
concatLatestFrom(() => this.store.pipe(select(getCurrentBasket))),
map(() => validateBasket({ scopes: ['Products'] }))
)
);
/**
* Delete basket item effect.
*/
deleteBasketItem$ = createEffect(() =>
this.actions$.pipe(
ofType(deleteBasketItem),
mapToPayloadProperty('itemId'),
concatMap(itemId =>
this.basketItemsService.deleteBasketItem(itemId).pipe(
map(info => deleteBasketItemSuccess({ itemId, info })),
mapErrorToAction(deleteBasketItemFail)
)
)
)
);
/**
* Delete all basket items effect.
*/
deleteBasketItems$ = createEffect(() =>
this.actions$.pipe(
ofType(deleteBasketItems),
concatMap(() =>
this.basketItemsService.deleteBasketItems().pipe(
map(info => deleteBasketItemsSuccess({ info })),
mapErrorToAction(deleteBasketItemsFail)
)
)
)
);
/**
* Triggers a LoadBasket action after successful interaction with the Basket API.
*/
loadBasketAfterBasketItemsChangeSuccess$ = createEffect(() =>
this.actions$.pipe(
ofType(addItemsToBasketSuccess, updateBasketItemSuccess, deleteBasketItemSuccess, deleteBasketItemsSuccess),
map(() => loadBasket())
)
);
redirectToBasketIfBasketInteractionHasInfo$ = createEffect(
() =>
this.actions$.pipe(
ofType(addItemsToBasketSuccess, updateBasketItemSuccess, deleteBasketItemSuccess),
mapToPayloadProperty('info'),
filter(info => !!info?.[0]?.message),
concatMap(() => from(this.router.navigate(['/basket'], { queryParams: { error: true } })))
),
{ dispatch: false }
);
private mapLineItemUpdate(
update: LineItemUpdate,
customFieldDefinitions: CustomFieldDefinition[]
): BasketItemUpdateType {
const itemUpdate: Partial<BasketItemUpdateType> = {
product: update.sku,
};
if (update.quantity > 0) {
itemUpdate.quantity = { value: update.quantity, unit: update.unit };
}
Iif (update.customFields) {
itemUpdate.customFields = CustomFieldMapper.toData(update.customFields, customFieldDefinitions);
}
Iif (update.warrantySku || update.warrantySku === '') {
// eslint-disable-next-line unicorn/no-null
itemUpdate.warranty = update.warrantySku ? update.warrantySku : null;
} // undefined is not working here
return itemUpdate;
}
}
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