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import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { Router } from '@angular/router';
import { take } from 'rxjs/operators';
import { CheckoutFacade } from 'ish-core/facades/checkout.facade';
import { ShoppingFacade } from 'ish-core/facades/shopping.facade';
import { FeatureToggleService, FeatureToggleType } from 'ish-core/feature-toggle.module';
import { CompareFacade } from '../../../compare/facades/compare.facade';
import { OrderTemplatesFacade } from '../../../order-templates/facades/order-templates.facade';
import {
CopilotEmbeddedBasketToolInput,
CopilotEmbeddedCompareToolInput,
CopilotEmbeddedNavigateToolInput,
CopilotEmbeddedNavigationPage,
CopilotEmbeddedOrderTemplateToolInput,
CopilotEmbeddedToolCall,
CopilotEmbeddedToolName,
} from '../../models/copilot-embedded-tool-call/copilot-embedded-tool-call.model';
/**
* Reacts to the action tool calls a Flowise chatflow reports (`usedTools`) and triggers the
* corresponding action in the PWA - adding to the basket, comparing products, navigating and order
* template actions.
*
* Note: the `icmSearch` tool is intentionally NOT handled here. Unlike the Copilot bubble (which
* navigates to the search results page), the Copilot Embedded renders the found products in its
* results panel on the same page - the products are mapped by the `CopilotEmbeddedService`, so no
* navigation is required.
*/
@Injectable({ providedIn: 'root' })
export class CopilotEmbeddedToolCallService {
private destroyRef = inject(DestroyRef);
private ngZone = inject(NgZone);
private router = inject(Router);
private shoppingFacade = inject(ShoppingFacade);
private checkoutFacade = inject(CheckoutFacade);
private compareFacade = inject(CompareFacade);
private orderTemplatesFacade = inject(OrderTemplatesFacade);
private featureToggleService = inject(FeatureToggleService);
/**
* Triggers the PWA actions of the tool calls of a chatflow response; tool calls without an action are ignored.
*
* @param toolCalls The `usedTools` of the response.
*/
triggerToolCallActions(toolCalls: CopilotEmbeddedToolCall[]): void {
(toolCalls ?? []).forEach(toolCall => this.triggerToolCallAction(toolCall));
}
private triggerToolCallAction(toolCall: CopilotEmbeddedToolCall): void {
// narrowed to the known tools so that misspelled cases do not compile; other tools end in `default`
switch (toolCall?.tool as CopilotEmbeddedToolName) {
case 'PWA_basket':
this.triggerBasketAction(toolCall.toolInput as CopilotEmbeddedBasketToolInput);
break;
case 'PWA_compare_products':
if (this.featureToggleService.enabled('compare')) {
this.compareFacade.compareProducts((toolCall.toolInput as CopilotEmbeddedCompareToolInput)?.SKUs?.split(';'));
this.navigate('/compare');
}
break;
case 'PWA_navigate_to_page':
this.triggerNavigation(toolCall.toolInput as CopilotEmbeddedNavigateToolInput);
break;
case 'PWA_order_template_actions':
if (this.featureToggleService.enabled('orderTemplates')) {
this.triggerOrderTemplateAction(toolCall.toolInput as CopilotEmbeddedOrderTemplateToolInput);
}
break;
default:
break;
}
}
/**
* Makes sure navigation triggered by the chatflow runs within the Angular zone (the streaming
* response is processed in a `fetch` callback outside of it).
*/
private navigate(url: string) {
this.ngZone.run(() => this.router.navigateByUrl(url));
}
/**
* Triggers the corresponding basket action based on the `PWA_basket` tool call.
*/
private triggerBasketAction(toolInput: CopilotEmbeddedBasketToolInput) {
const operation = toolInput?.operation;
const skusAndQty = (toolInput?.items?.split(';') ?? []).map(item => {
const [sku, param] = item.split(':');
const isAllQty = param?.toLowerCase() === 'all';
return { sku, qty: isAllQty ? 1 : Number(param) || 1, isAllQty };
});
switch (operation) {
case 'add':
this.shoppingFacade.addProductsToBasket(skusAndQty.map(({ sku, qty }) => ({ sku, quantity: qty })));
break;
case 'update':
case 'remove':
this.checkoutFacade.basket$.pipe(take(1), takeUntilDestroyed(this.destroyRef)).subscribe(basket => {
skusAndQty.forEach(({ sku, qty, isAllQty }) => {
basket?.lineItems
?.filter(li => li?.productSKU === sku)
?.forEach(item => {
if (operation === 'update') {
this.checkoutFacade.updateBasketItem({ itemId: item.id, quantity: qty });
} else if (isAllQty) {
this.checkoutFacade.deleteBasketItem(item.id);
} else {
const newQty = item?.quantity?.value - qty;
if (newQty >= 0) {
this.checkoutFacade.updateBasketItem({ itemId: item.id, quantity: newQty });
}
}
});
});
});
break;
case 'clear':
this.checkoutFacade.deleteBasketItems();
break;
case 'view':
this.navigate('/basket');
break;
default:
break;
}
}
/**
* Triggers the corresponding navigation route based on the `PWA_navigate_to_page` tool call.
*/
private triggerNavigation(toolInput: CopilotEmbeddedNavigateToolInput) {
const { page, sku, categoryId, orderId, orderTemplateId } = toolInput ?? {};
const navigationMap: Record<CopilotEmbeddedNavigationPage, () => void> = {
home: () => this.navigate('/'),
basket: () => this.navigate('/basket'),
product: () => this.navigate(`/product/${sku}`),
category: () => this.navigate(`/category/${categoryId}`),
order: () => this.navigate(`/account/orders/${orderId}`),
orderHistory: () => this.navigate('/account/orders'),
orderTemplates: () => this.navigate('/account/order-templates'),
orderTemplate: () => this.navigate(`/account/order-templates/${orderTemplateId}`),
myAccount: () => this.navigate('/account'),
contact: () => this.navigate('/contact'),
imprint: () => this.navigate('/page/page.legalnotice'),
login: () => this.navigate('/login'),
logout: () => this.navigate('/logout'),
};
const requiredFeature: Partial<Record<CopilotEmbeddedNavigationPage, FeatureToggleType>> = {
orderTemplates: 'orderTemplates',
orderTemplate: 'orderTemplates',
};
if (requiredFeature[page] && !this.featureToggleService.enabled(requiredFeature[page])) {
return;
}
Eif (navigationMap[page]) {
navigationMap[page]();
}
}
/**
* Triggers the corresponding order template action based on the `PWA_order_template_actions` tool call.
*/
private triggerOrderTemplateAction(toolInput: CopilotEmbeddedOrderTemplateToolInput) {
const { operation, sku, orderTemplateId, title, quantity } = toolInput ?? {};
switch (operation) {
case 'create':
this.orderTemplatesFacade.addOrderTemplate({ title });
break;
case 'add':
if (sku && orderTemplateId) {
this.orderTemplatesFacade.addProductToOrderTemplate(orderTemplateId, sku, quantity ? Number(quantity) : 1);
}
break;
case 'remove':
if (sku && orderTemplateId) {
this.orderTemplatesFacade.removeProductFromOrderTemplate(orderTemplateId, sku);
}
break;
case 'delete':
if (orderTemplateId) {
this.orderTemplatesFacade.deleteOrderTemplate(orderTemplateId);
}
break;
default:
break;
}
}
}
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