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import { Router } from '@angular/router';
import { Actions, concatLatestFrom, createEffect, ofType } from '@ngrx/effects';
import { Store, select } from '@ngrx/store';
import { intersection } from 'lodash-es';
import { EMPTY, Observable, from } from 'rxjs';
import { concatMap, filter, map, withLatestFrom } from 'rxjs/operators';
import { BasketFeedbackView } from 'ish-core/models/basket-feedback/basket-feedback.model';
import {
BasketValidationResultType,
BasketValidationScopeType,
} from 'ish-core/models/basket-validation/basket-validation.model';
import { CheckoutStepType } from 'ish-core/models/checkout/checkout-step.type';
import { BasketService } from 'ish-core/services/basket/basket.service';
import { getServerConfigParameter } from 'ish-core/store/core/server-config';
import { createOrder } from 'ish-core/store/customer/orders';
import { loadProduct } from 'ish-core/store/shopping/products';
import { mapErrorToAction, mapToPayload, mapToPayloadProperty, whenTruthy } from 'ish-core/utils/operators';
import {
continueCheckout,
continueCheckoutFail,
continueCheckoutSuccess,
continueCheckoutWithIssues,
continueWithFastCheckout,
loadBasketEligiblePaymentMethods,
loadBasketEligibleShippingMethods,
loadBasketFail,
startCheckout,
startCheckoutFail,
startCheckoutSuccess,
startFastCheckout,
submitBasket,
validateBasket,
} from './basket.actions';
import { getCurrentBasket } from './basket.selectors';
@Injectable()
export class BasketValidationEffects {
constructor(
private actions$: Actions,
private store: Store,
private router: Router,
private basketService: BasketService
) {}
// validation step for each checkout step type
private validationSteps: { [targetStep: string | number]: { scopes: BasketValidationScopeType[]; route: string } } = {
[CheckoutStepType.BeforeCheckout]: { scopes: ['Products', 'Promotion', 'Value', 'CostCenter'], route: '/basket' },
[CheckoutStepType.Addresses]: {
scopes: ['InvoiceAddress', 'ShippingAddress', 'Addresses'],
route: '/checkout/address',
},
[CheckoutStepType.Shipping]: { scopes: ['Shipping'], route: '/checkout/shipping' },
[CheckoutStepType.Payment]: { scopes: ['Payment'], route: '/checkout/payment' },
[CheckoutStepType.Review]: { scopes: ['All', 'CostCenter'], route: '/checkout/review' },
[CheckoutStepType.Receipt]: { scopes: ['All'], route: 'auto' }, // targetRoute will be calculated in dependence of the validation result
};
/**
* Jumps to the first checkout step (no basket acceleration)
*/
startCheckoutWithoutAcceleration$ = createEffect(() =>
this.actions$.pipe(
ofType(startCheckout),
concatLatestFrom(() => this.store.pipe(select(getServerConfigParameter<boolean>('basket.acceleration')))),
filter(([, acc]) => !acc),
map(() => continueCheckout({ targetStep: CheckoutStepType.Addresses }))
)
);
/**
* Check the basket before starting the basket acceleration
*/
startCheckoutWithAcceleration$ = createEffect(() =>
this.actions$.pipe(
ofType(startCheckout),
concatLatestFrom(() => this.store.pipe(select(getServerConfigParameter<boolean>('basket.acceleration')))),
filter(([, acc]) => acc),
concatMap(() =>
this.basketService.validateBasket(this.validationSteps[CheckoutStepType.BeforeCheckout].scopes).pipe(
map(basketValidation => startCheckoutSuccess({ basketValidation })),
mapErrorToAction(startCheckoutFail)
)
)
)
);
/**
* Validates the basket and jumps to the next possible checkout step (basket acceleration)
*/
continueCheckoutWithAcceleration$ = createEffect(
() =>
this.actions$.pipe(
ofType(startCheckoutSuccess),
mapToPayload(),
map(payload => payload.basketValidation.results),
filter(results => results.valid && !results.adjusted),
concatMap(() =>
this.basketService
.validateBasket(this.validationSteps[CheckoutStepType.Review].scopes)
.pipe(
concatMap(basketValidation =>
basketValidation?.results?.valid
? from(this.router.navigate([this.validationSteps[CheckoutStepType.Review].route]))
: this.jumpToTargetRoute('auto', basketValidation?.results)
)
)
)
),
{ dispatch: false }
);
/**
* validates the basket but doesn't change the route
*/
validateBasket$ = createEffect(() =>
this.actions$.pipe(
ofType(validateBasket),
mapToPayloadProperty('scopes'),
whenTruthy(),
concatMap(scopes =>
this.basketService.validateBasket(scopes).pipe(
map(basketValidation =>
basketValidation.results.valid
? continueCheckoutSuccess({ targetRoute: undefined, basketValidation })
: continueCheckoutWithIssues({ targetRoute: undefined, basketValidation })
),
mapErrorToAction(continueCheckoutFail)
)
)
)
);
/**
* Validates the basket before the user is allowed to jump to the next basket step
*/
validateBasketAndContinueCheckout$ = createEffect(() =>
this.actions$.pipe(
ofType(continueCheckout),
mapToPayloadProperty('targetStep'),
whenTruthy(),
concatMap(targetStep => {
const targetRoute = this.validationSteps[targetStep].route;
return this.basketService.validateBasket(this.validationSteps[targetStep - 1].scopes).pipe(
withLatestFrom(this.store.pipe(select(getCurrentBasket))),
concatMap(([basketValidation, basket]) =>
basketValidation.results.valid
? targetStep === CheckoutStepType.Receipt && !basketValidation.results.adjusted
? basket.approval?.approvalRequired
? [continueCheckoutSuccess({ targetRoute: undefined, basketValidation }), submitBasket()]
: [continueCheckoutSuccess({ targetRoute: undefined, basketValidation }), createOrder()]
: [continueCheckoutSuccess({ targetRoute, basketValidation })]
: [continueCheckoutWithIssues({ targetRoute, basketValidation })]
),
mapErrorToAction(continueCheckoutFail)
);
})
)
);
/**
* Validation the basket before starting the fast checkout effect.
*/
startFastCheckoutProcess$ = createEffect(() =>
this.actions$.pipe(
ofType(startFastCheckout),
mapToPayloadProperty('paymentId'),
concatMap(paymentId =>
this.basketService.validateBasket(this.validationSteps[0].scopes).pipe(
map(basketValidation =>
basketValidation.results.valid
? continueWithFastCheckout({ targetRoute: undefined, basketValidation, paymentId })
: continueCheckoutWithIssues({ targetRoute: undefined, basketValidation })
),
mapErrorToAction(startCheckoutFail)
)
)
)
);
/**
* Jumps to the next checkout step after basket validation. In case of adjustments related data like product data, eligible shipping methods etc. are loaded.
*/
jumpToNextCheckoutStep$ = createEffect(
() =>
this.actions$.pipe(
ofType(continueCheckoutSuccess, continueCheckoutWithIssues),
mapToPayload(),
concatMap(payload => this.jumpToTargetRoute(payload.targetRoute, payload.basketValidation?.results))
),
{ dispatch: false }
);
loadDataForNextCheckoutStep$ = createEffect(() =>
this.actions$.pipe(
ofType(continueCheckoutSuccess, continueCheckoutWithIssues),
mapToPayload(),
filter(payload => payload.basketValidation?.results.adjusted && !!payload.basketValidation.results.infos),
map(payload => payload.basketValidation),
concatMap(validation => {
// Load eligible shipping methods if shipping infos are available
if (validation.scopes.includes('Shipping')) {
return [loadBasketEligibleShippingMethods()];
// Load eligible payment methods if payment infos are available
} else if (validation.scopes.includes('Payment')) {
return [loadBasketEligiblePaymentMethods()];
} else {
// Load products if product related infos are available
return validation.results.infos
.filter(info => info.parameters?.productSku)
.map(info => loadProduct({ sku: info.parameters.productSku }));
}
})
)
);
// if the basket is expired or doesn't exist - clear the basket and go to cart page
handleBasketNotFoundError$ = createEffect(() =>
this.actions$.pipe(
ofType(startCheckoutFail, continueCheckoutFail),
mapToPayloadProperty('error'),
filter(error => error?.code === 'basket.not_found.error' || error?.errors[0]?.code === 'basket.not_found.error'),
concatMap(error =>
from(
this.router.navigate([this.validationSteps[CheckoutStepType.BeforeCheckout].route], {
queryParams: { error: true },
})
).pipe(map(() => loadBasketFail({ error })))
)
)
);
private extractScopes(elements: BasketFeedbackView[]): string[] {
return elements
?.filter(el => !!el.parameters?.scopes?.length)
.reduce((acc, el) => [...acc, ...el.parameters.scopes], [])
.filter((val, idx, arr) => !!val && arr.indexOf(val) === idx);
}
/**
* Navigates to the target route, in case targetRoute equals 'auto' the target route will be calculated based on the calculation result
*/
private jumpToTargetRoute(targetRoute: string, results: BasketValidationResultType): Observable<boolean> {
Iif (!targetRoute || !results) {
return EMPTY;
}
if (targetRoute === 'auto') {
let scopes = this.extractScopes(results.errors);
Iif (!scopes?.length) {
scopes = this.extractScopes(results.infos);
}
const foundKey = Object.keys(this.validationSteps).find(
key => intersection(this.validationSteps[key].scopes, scopes).length
);
const foundStep = this.validationSteps[foundKey];
if (foundStep) {
return from(this.router.navigate([foundStep.route], { queryParams: { error: true } }));
}
// otherwise stay on the current page
} else if (results.valid && !results.adjusted) {
return from(this.router.navigate([targetRoute]));
}
return EMPTY;
}
}
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