@Injectable({
providedIn: 'root'
})
export class CartService {
constructor(private cartStore: CartStore,
private cartQuery: CartQuery) {}
addProductToCart(productId: Product['id']) {
const findItem = this.cartQuery.getEntity(productId);
if (findItem) {
return this.cartStore.updateQuantity(productId);
}
const item = createCartItem({
productId
});
return this.cartStore.add(item);
}
}