feat(catalog): refresh availability after cart changes

src/app/core/layout/store-layout/store-layout.component.ts

@@ -236,7 +236,6 @@ export class StoreLayoutComponent implements OnInit {
         cart_id: cart.id,
       });
 
-      this.cartService.clearCart();
       this.isCartOpen.set(false);
       await this.router.navigate(['/checkout'], {
         queryParams: { purchase: purchase.id },

src/app/core/services/cart/cart.service.spec.ts

@@ -7,11 +7,13 @@ import { CartService } from './cart.service';
 import { TenantService } from '../tenant.service';
 import { Cart } from './cart.interface';
 import { LOADING_MODE } from '../global-loading/loading-mode';
+import { CatalogAvailabilityService } from '../catalog/catalog-availability.service';
 
 describe('CartService', () => {
   let service: CartService;
   let httpMock: HttpTestingController;
   let tenantServiceMock: any;
+  let catalogAvailabilityService: CatalogAvailabilityService;
 
   const mockCart: Cart = {
     id: 123,
@@ -53,6 +55,7 @@ describe('CartService', () => {
     });
 
     service = TestBed.inject(CartService);
+    catalogAvailabilityService = TestBed.inject(CatalogAvailabilityService);
     httpMock = TestBed.inject(HttpTestingController);
   });
 
@@ -101,6 +104,9 @@ describe('CartService', () => {
   });
 
   it('should add item and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     service.addItem(5, 10, 2).subscribe((res) => {
       expect(res.data).toEqual(mockCart);
       expect(service.cart()).toEqual(mockCart);
@@ -115,9 +121,13 @@ describe('CartService', () => {
     });
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: mockCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
   });
 
   it('should update item quantity and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     const updatedCart = { ...mockCart, subtotal: '30.00' };
     updatedCart.items[0].cantidad = 3;
 
@@ -131,9 +141,13 @@ describe('CartService', () => {
     expect(req.request.body).toEqual({ cantidad: 3 });
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: updatedCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
   });
 
   it('should remove item and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     const emptyCart: Cart = {
       id: 123,
       tenant_codigo: 'acme',
@@ -151,5 +165,18 @@ describe('CartService', () => {
     expect(req.request.method).toBe('DELETE');
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: emptyCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
+  });
+
+  it('does not notify an availability change when a cart mutation fails', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
+    service.removeItem(10).subscribe({ error: vi.fn() });
+
+    const req = httpMock.expectOne('http://api.test/tenants/acme/cart/items/10');
+    req.flush({ message: 'Error' }, { status: 500, statusText: 'Server Error' });
+
+    expect(availabilityChanged).not.toHaveBeenCalled();
   });
 });

src/app/core/services/cart/cart.service.ts

@@ -3,6 +3,7 @@ import { catchError, map, Observable, tap } from 'rxjs';
 
 import { ApiResponse } from '../api-response.interface';
 import { BaseApiService } from '../base-api.service';
+import { CatalogAvailabilityService } from '../catalog/catalog-availability.service';
 import { TenantService } from '../tenant.service';
 import { Cart } from './cart.interface';
 
@@ -10,6 +11,7 @@ import { Cart } from './cart.interface';
   providedIn: 'root',
 })
 export class CartService extends BaseApiService {
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly tenantService = inject(TenantService);
 
   private readonly cartState = signal<Cart | null>(null);
@@ -60,6 +62,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {
@@ -93,6 +96,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {
@@ -111,6 +115,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {

src/app/core/services/catalog/catalog-availability.service.ts

@@ -0,0 +1,15 @@
+import { Injectable } from '@angular/core';
+import { Observable, Subject } from 'rxjs';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class CatalogAvailabilityService {
+  private readonly availabilityChangedSubject = new Subject<void>();
+
+  readonly availabilityChanged$: Observable<void> = this.availabilityChangedSubject.asObservable();
+
+  notifyAvailabilityChanged(): void {
+    this.availabilityChangedSubject.next();
+  }
+}

src/app/core/services/checkout.service.ts

@@ -3,7 +3,6 @@ import { firstValueFrom } from 'rxjs';
 
 import { environment } from '../../../environments/environment';
 import { BaseApiService } from './base-api.service';
-import { CartItemVariant } from './cart/cart.interface';
 
 export interface UpdatePurchaseCustomerPayload {
   dni: string;
@@ -74,7 +73,6 @@ export interface PurchaseDetailItemResponse {
   line_total: string;
   source_catalog_item_id: number | null;
   source_variant_id: number | null;
-  variants?: CartItemVariant[];
   item_details: {
     nombre: string;
     descripcion: string | null;
@@ -97,7 +95,7 @@ export interface PurchaseDetailResponse extends PurchaseStatusResponse {
   telefono: string | null;
   nombre_apellido: string | null;
   email: string | null;
-  items_source: 'purchase' | 'cart';
+  items_source: 'purchase';
   items: PurchaseDetailItemResponse[];
   tickets_count?: number;
   has_generated_tickets?: boolean;
@@ -171,104 +169,6 @@ export class CheckoutService extends BaseApiService {
     return purchase;
   }
 
-  async updateItemQuantity(
-    tenantCode: string,
-    purchaseId: number,
-    itemId: number,
-    quantity: number,
-    cartId: number | null = null,
-    itemsSource: 'purchase' | 'cart' = 'purchase',
-  ): Promise<PurchaseDetailResponse> {
-    if (itemsSource === 'cart' && cartId !== null) {
-      await firstValueFrom(
-        this.http.patch(
-          `${environment.url}tenants/${tenantCode}/checkout-carts/${cartId}/items/${itemId}`,
-          { cantidad: quantity },
-        ),
-      );
-
-      return this.getPurchase(tenantCode, purchaseId);
-    }
-
-    const response = await firstValueFrom(
-      this.http.patch<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
-        `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/items/${itemId}`,
-        { quantity },
-      ),
-    );
-
-    const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
-    if (!purchase) {
-      throw new Error('Error al actualizar la cantidad del producto.');
-    }
-
-    return purchase;
-  }
-
-  async updateItemVariant(
-    tenantCode: string,
-    purchaseId: number,
-    itemId: number,
-    variantId: number,
-    quantity: number,
-    cartId: number | null = null,
-    itemsSource: 'purchase' | 'cart' = 'purchase',
-  ): Promise<PurchaseDetailResponse> {
-    if (itemsSource === 'cart' && cartId !== null) {
-      await firstValueFrom(
-        this.http.patch(
-          `${environment.url}tenants/${tenantCode}/checkout-carts/${cartId}/items/${itemId}`,
-          { cantidad: quantity, variant_id: variantId },
-        ),
-      );
-    } else {
-      await firstValueFrom(
-        this.http.patch(
-          `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/items/${itemId}`,
-          { quantity, variant_id: variantId },
-        ),
-      );
-    }
-
-    return this.getPurchase(tenantCode, purchaseId);
-  }
-
-  async removeItem(
-    tenantCode: string,
-    purchaseId: number,
-    itemId: number,
-    cartId: number | null = null,
-    itemsSource: 'purchase' | 'cart' = 'purchase',
-  ): Promise<PurchaseDetailResponse> {
-    const url =
-      itemsSource === 'cart' && cartId !== null
-        ? `${environment.url}tenants/${tenantCode}/checkout-carts/${cartId}/items/${itemId}`
-        : `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/items/${itemId}`;
-
-    await firstValueFrom(this.http.delete(url));
-
-    return this.getPurchase(tenantCode, purchaseId);
-  }
-
-  async prepareItemEditing(
-    tenantCode: string,
-    purchaseId: number,
-  ): Promise<PurchaseDetailResponse> {
-    const response = await firstValueFrom(
-      this.http.post<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
-        `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/edit-items`,
-        {},
-      ),
-    );
-
-    const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
-    if (!purchase) {
-      throw new Error('Error al preparar la compra para editarla.');
-    }
-
-    return purchase;
-  }
-
   async completePurchase(tenantCode: string, purchaseId: number): Promise<PurchaseStatusResponse> {
     const response = await firstValueFrom(
       this.http.post<{ data?: PurchaseStatusResponse } | PurchaseStatusResponse>(

src/app/features/store/pages/category-items-page/category-items-page.component.spec.ts

@@ -7,6 +7,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -107,6 +108,16 @@ describe('CategoryItemsPageComponent', () => {
     expect(Array.isArray(productList.items())).toBe(false);
   });
 
+  it('reloads the current category page when catalog availability changes', () => {
+    const fixture = TestBed.createComponent(CategoryItemsPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(getCategoryItems).toHaveBeenCalledTimes(2);
+    expect(getCategoryItems).toHaveBeenLastCalledWith(7, { page: 1 });
+  });
+
   it('does not request the API when the category id is invalid', () => {
     TestBed.overrideProvider(ActivatedRoute, {
       useValue: {

src/app/features/store/pages/category-items-page/category-items-page.component.ts

@@ -16,6 +16,7 @@ import {
   finalize,
   map,
   of,
+  startWith,
   switchMap,
   tap,
 } from 'rxjs';
@@ -28,6 +29,7 @@ import {
   CategoryItemsResponse,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import {
@@ -50,6 +52,7 @@ interface CategoryRouteState {
 })
 export class CategoryItemsPageComponent {
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly destroyRef = inject(DestroyRef);
@@ -65,22 +68,29 @@ export class CategoryItemsPageComponent {
   protected readonly paginatedLayout: CatalogGroupLayout = 'paginated';
 
   constructor() {
-    combineLatest([this.route.paramMap, this.route.queryParamMap])
-      .pipe(
-        map(
-          ([params, queryParams]): CategoryRouteState => ({
-            categoryId: this.parsePositiveInteger(params.get('id')),
-            page: this.parsePositiveInteger(queryParams.get('page'), 1),
-          }),
-        ),
-        distinctUntilChanged(
-          (previous, current) =>
-            previous.categoryId === current.categoryId && previous.page === current.page,
-        ),
-        tap(() => {
-          this.results.set(null);
-          this.error.set(null);
+    const routeState$ = combineLatest([this.route.paramMap, this.route.queryParamMap]).pipe(
+      map(
+        ([params, queryParams]): CategoryRouteState => ({
+          categoryId: this.parsePositiveInteger(params.get('id')),
+          page: this.parsePositiveInteger(queryParams.get('page'), 1),
         }),
+      ),
+      distinctUntilChanged(
+        (previous, current) =>
+          previous.categoryId === current.categoryId && previous.page === current.page,
+      ),
+      tap(() => {
+        this.results.set(null);
+        this.error.set(null);
+      }),
+    );
+
+    combineLatest([
+      routeState$,
+      this.catalogAvailabilityService.availabilityChanged$.pipe(startWith(undefined)),
+    ])
+      .pipe(
+        map(([routeState]) => routeState),
         switchMap(({ categoryId, page }) => {
           if (categoryId === 0) {
             this.error.set('La categoría solicitada no es válida.');

src/app/features/store/pages/checkout-page/checkout-page.component.html

@@ -5,12 +5,7 @@
   </div>
 } @else {
   <div class="checkout-page">
-    <div
-      class="checkout-page__stepper-col"
-      [class.checkout-page__stepper-col--editing]="isEditingItems()"
-      [attr.aria-hidden]="isEditingItems()"
-      [attr.inert]="isEditingItems() ? '' : null"
-    >
+    <div class="checkout-page__stepper-col">
       <app-stepper #stepper [initialStepIndex]="checkoutStepIndex()">
         <app-step label="Datos" [isValid]="isStep1Valid()">
           <app-checkout-data-step
@@ -45,12 +40,6 @@
       </app-stepper>
     </div>
 
-    @if (isEditingItems()) {
-      <div class="checkout-page__editing-notice" role="status">
-        <p>Terminá de modificar las cantidades para continuar con el pago.</p>
-      </div>
-    }
-
     <div class="checkout-page__cart-col">
       <app-cart
         title="COMPRA"
@@ -58,23 +47,13 @@
         [subtotal]="cartSubtotal()"
         [discount]="cartDiscount()"
         [total]="cartTotal()"
-        [readonly]="!canModifyCart()"
+        [readonly]="true"
         [allowModify]="true"
         [showModifyWhenReadonly]="true"
-        [allowUpdateQuantity]="canUpdateCartQuantity()"
-        [allowUpdateVariant]="canUpdateCartVariant()"
-        [requireEditingMode]="true"
-        [allowDelete]="canDeleteCartItems()"
-        [persistQuantityChanges]="false"
-        [persistVariantChanges]="false"
-        [persistDeleteChanges]="false"
-        [editing]="isEditingItems()"
-        [editingDisabled]="isUpdatingItem() || isPreparingItemEdit()"
+        [modifyAsAction]="true"
+        [editingDisabled]="isCancellingPurchase()"
         backgroundColor="transparent"
-        (editingChange)="onEditingItemsChange($event)"
-        (itemQuantityChange)="onPurchaseItemQuantityChange($event)"
-        (itemVariantChange)="onPurchaseItemVariantChange($event)"
-        (itemRemove)="onPurchaseItemRemove($event)"
+        (modify)="onModifyPurchase()"
       />
     </div>
   </div>

src/app/features/store/pages/checkout-page/checkout-page.component.scss

@@ -11,8 +11,7 @@
       order: 1;
     }
 
-    .checkout-page__stepper-col,
-    .checkout-page__editing-notice {
+    .checkout-page__stepper-col {
       order: 2;
     }
   }
@@ -21,27 +20,6 @@
     min-width: 0;
     border-radius: 4px;
     min-height: 420px;
-
-    &--editing {
-      display: none;
-    }
-  }
-
-  &__editing-notice {
-    display: grid;
-    min-height: 420px;
-    place-items: center;
-    padding: 2rem;
-    border-radius: 4px;
-    background: #f5f5f5;
-    color: #666666;
-    text-align: center;
-
-    p {
-      max-width: 360px;
-      margin: 0;
-      font-size: 14px;
-    }
   }
 
   &__cart-col {

src/app/features/store/pages/checkout-page/checkout-page.component.spec.ts

@@ -3,13 +3,12 @@ import { signal } from '@angular/core';
 import { getTestBed, TestBed } from '@angular/core/testing';
 import { BrowserTestingModule, platformBrowserTesting } from '@angular/platform-browser/testing';
 import { ActivatedRoute, convertToParamMap, Router } from '@angular/router';
-import { of } from 'rxjs';
 import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { AuthService } from '../../../../core/services/auth/auth.service';
-import { CartService } from '../../../../core/services/cart/cart.service';
 import { CheckoutService } from '../../../../core/services/checkout.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { GlobalLoadingService } from '../../../../core/services/global-loading/global-loading.service';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { CartEditingPolicy } from '../../../../core/services/tenant.interface';
@@ -19,24 +18,18 @@ describe('CheckoutPageComponent payment validation', () => {
   let checkoutServiceStub: {
     startCheckout: ReturnType<typeof vi.fn>;
     updateCustomerData: ReturnType<typeof vi.fn>;
-    updateItemQuantity: ReturnType<typeof vi.fn>;
-    updateItemVariant: ReturnType<typeof vi.fn>;
-    removeItem: ReturnType<typeof vi.fn>;
-    prepareItemEditing: ReturnType<typeof vi.fn>;
     cancelPurchase: ReturnType<typeof vi.fn>;
     generatePaymentIntent: ReturnType<typeof vi.fn>;
     submitPurchaseForReview: ReturnType<typeof vi.fn>;
     getPurchase: ReturnType<typeof vi.fn>;
     withCustomLoading: ReturnType<typeof vi.fn>;
   };
-  let cartServiceStub: {
-    cart: ReturnType<typeof signal>;
-    isUpdating: ReturnType<typeof signal<boolean>>;
-    loadCart: ReturnType<typeof vi.fn>;
-    clearCart: ReturnType<typeof vi.fn>;
-  };
   let routerStub: { navigate: ReturnType<typeof vi.fn> };
   let toastServiceStub: { danger: ReturnType<typeof vi.fn> };
+  let globalLoadingServiceStub: {
+    start: ReturnType<typeof vi.fn>;
+    stop: ReturnType<typeof vi.fn>;
+  };
   let routeQueryParamMap: ReturnType<typeof convertToParamMap>;
   let authUserState: ReturnType<typeof signal>;
   let tenantState: ReturnType<
@@ -65,10 +58,6 @@ describe('CheckoutPageComponent payment validation', () => {
         total: '0.00',
       }),
       updateCustomerData: vi.fn(),
-      updateItemQuantity: vi.fn(),
-      updateItemVariant: vi.fn(),
-      removeItem: vi.fn(),
-      prepareItemEditing: vi.fn(),
       cancelPurchase: vi.fn().mockResolvedValue({ status: 'cancelled' }),
       generatePaymentIntent: vi.fn().mockResolvedValue({
         qr_data: { qr_code: 'qr-value' },
@@ -78,29 +67,9 @@ describe('CheckoutPageComponent payment validation', () => {
       withCustomLoading: vi.fn(),
     };
     checkoutServiceStub.withCustomLoading.mockReturnValue(checkoutServiceStub);
-    cartServiceStub = {
-      cart: signal({
-        id: 10,
-        tenant_codigo: 'tenant-test',
-        status: 'active',
-        items: [],
-        subtotal: '0.00',
-      }),
-      isUpdating: signal(false),
-      loadCart: vi.fn().mockReturnValue(of({})),
-      clearCart: vi.fn(),
-    };
-    cartServiceStub.clearCart.mockImplementation(() => {
-      cartServiceStub.cart.set({
-        id: null,
-        tenant_codigo: 'tenant-test',
-        status: 'active',
-        items: [],
-        subtotal: '0.00',
-      });
-    });
     routerStub = { navigate: vi.fn() };
     toastServiceStub = { danger: vi.fn() };
+    globalLoadingServiceStub = { start: vi.fn(), stop: vi.fn() };
     routeQueryParamMap = convertToParamMap({});
     authUserState = signal(null);
     tenantState = signal({
@@ -119,9 +88,9 @@ describe('CheckoutPageComponent payment validation', () => {
       providers: [
         { provide: CheckoutService, useValue: checkoutServiceStub },
         { provide: CatalogService, useValue: { getCatalogItem: vi.fn() } },
-        { provide: CartService, useValue: cartServiceStub },
         { provide: TenantService, useValue: { tenant: tenantState } },
         { provide: AuthService, useValue: { user: authUserState } },
+        { provide: GlobalLoadingService, useValue: globalLoadingServiceStub },
         { provide: ToastService, useValue: toastServiceStub },
         {
           provide: ActivatedRoute,
@@ -168,7 +137,6 @@ describe('CheckoutPageComponent payment validation', () => {
 
     await vi.advanceTimersByTimeAsync(5_000);
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(2);
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
     expect(checkoutServiceStub.generatePaymentIntent).toHaveBeenCalledTimes(1);
   });
@@ -240,7 +208,6 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(4);
     expect(checkoutServiceStub.getPurchase).toHaveBeenLastCalledWith('tenant-test', 25);
     expect(component.transferValidationStatus()).toBe('error');
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).not.toHaveBeenCalled();
   });
 
@@ -253,7 +220,6 @@ describe('CheckoutPageComponent payment validation', () => {
     await vi.advanceTimersByTimeAsync(3_000);
 
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledWith('tenant-test', 25);
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
   });
 
@@ -268,7 +234,6 @@ describe('CheckoutPageComponent payment validation', () => {
 
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(4);
     expect(component.transferValidationStatus()).toBe('error');
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).not.toHaveBeenCalled();
   });
 
@@ -477,83 +442,30 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
   });
 
-  it('updates a purchase item while editing and refreshes checkout totals', async () => {
-    const updatedPurchase = {
-      id: 25,
-      items: [],
-      subtotal: '300.00',
-      total: '300.00',
-    };
-    checkoutServiceStub.updateItemQuantity.mockResolvedValue(updatedPurchase);
-    const { component } = createComponent();
-    component.isEditingItems.set(true);
-
-    await component.onPurchaseItemQuantityChange({
-      item: {
-        cartItemId: 91,
-        imageUrl: null,
-        product: 'Remera',
-        originalPrice: null,
-        discountedPrice: 100,
-        discountPercentage: null,
-        attributes: [],
-        quantity: 2,
-      },
-      quantity: 3,
+  it('shows the API error in a toast when cancelling the purchase fails', async () => {
+    const message = 'La compra venció. Iniciá una nueva compra.';
+    checkoutServiceStub.cancelPurchase.mockRejectedValue({
+      error: { code: 'purchase.expired', message },
     });
+    const { component } = createComponent();
 
-    expect(checkoutServiceStub.updateItemQuantity).toHaveBeenCalledWith(
-      'tenant-test',
-      25,
-      91,
-      3,
-      null,
-      'purchase',
+    await component.onModifyPurchase();
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(message);
+    expect(routerStub.navigate).not.toHaveBeenCalled();
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+    expect(component.isCancellingPurchase()).toBe(false);
+  });
+
+  it('cancels the current purchase and opens the active cart when Modificar is clicked', async () => {
+    let finishNavigation!: (navigated: boolean) => void;
+    routerStub.navigate.mockReturnValue(
+      new Promise<boolean>((resolve) => {
+        finishNavigation = resolve;
+      }),
     );
-    expect(component.createdPurchase()).toBe(updatedPurchase);
-    expect(component.isUpdatingItem()).toBe(false);
-  });
-
-  it('keeps the payment step selected while editing and regenerates payment afterward', async () => {
-    const editablePurchase = {
-      id: 25,
-      status: 'created',
-      items: [],
-      subtotal: '100.00',
-      total: '100.00',
-    };
-    checkoutServiceStub.prepareItemEditing.mockResolvedValue(editablePurchase);
     const { component } = createComponent();
-    component.stepper = { currentStepIndex: signal(1) };
-    const selectPaymentMethod = vi
-      .spyOn(component, 'selectPaymentMethod')
-      .mockResolvedValue(undefined);
-
-    await component.onEditingItemsChange(true);
-
-    expect(checkoutServiceStub.prepareItemEditing).toHaveBeenCalledWith('tenant-test', 25);
-    expect(component.isEditingItems()).toBe(true);
-    expect(component.createdPurchase()).toBe(editablePurchase);
-
-    await component.onEditingItemsChange(false);
-
-    expect(component.stepper.currentStepIndex()).toBe(1);
-    expect(selectPaymentMethod).toHaveBeenCalledWith('qr');
-    expect(component.isEditingItems()).toBe(false);
-  });
-
-  it('shows Modificar and returns to the home cart when checkout editing is disabled', async () => {
-    tenantState.set({
-      codigo: 'tenant-test',
-      checkout_editing_policy: {
-        code: 'disabled',
-        allow_modify: false,
-        allow_delete: false,
-        allow_update_quantity: false,
-        allow_update_variant: false,
-      },
-    });
-    const { fixture, component } = createComponent();
     component.createdPurchase.set({
       id: 25,
       status: 'created',
@@ -577,23 +489,26 @@ describe('CheckoutPageComponent payment validation', () => {
       subtotal: '200.00',
       total: '200.00',
     });
-    fixture.detectChanges();
+    const modification = component.onModifyPurchase();
+    await Promise.resolve();
+    await Promise.resolve();
 
-    const modifyButton = (fixture.nativeElement as HTMLElement).querySelector('.cart-edit-btn');
-    expect(modifyButton?.textContent?.trim()).toBe('Modificar');
-    expect(
-      (fixture.nativeElement as HTMLElement).querySelector('app-quantity-selector'),
-    ).toBeNull();
-
-    await component.onEditingItemsChange(true);
-
-    expect(component.canUpdateCartQuantity()).toBe(false);
-    expect(component.canModifyCart()).toBe(false);
-    expect(component.isEditingItems()).toBe(false);
-    expect(checkoutServiceStub.prepareItemEditing).not.toHaveBeenCalled();
+    expect(checkoutServiceStub.cancelPurchase).toHaveBeenCalledWith('tenant-test', 25);
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).not.toHaveBeenCalled();
+    expect(component.createdPurchaseId()).toBeNull();
+    expect(component.createdPurchase()).toBeNull();
     expect(routerStub.navigate).toHaveBeenCalledWith(['/'], {
       queryParams: { openCart: true },
     });
+
+    finishNavigation(true);
+    await modification;
+
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+
+    await component.canDeactivate();
+
   });
 
   it('updates customer data on the existing purchase before payment', async () => {
@@ -630,14 +545,26 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(component.stepper.next).toHaveBeenCalledOnce();
   });
 
-  it('keeps the checkout purchase intact when navigating away', async () => {
+  it('cancels the current purchase when navigating away from checkout', async () => {
     const { component } = createComponent();
 
     await expect(component.canDeactivate()).resolves.toBe(true);
 
-    expect(checkoutServiceStub.cancelPurchase).not.toHaveBeenCalled();
-    expect(cartServiceStub.loadCart).toHaveBeenCalled();
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
+    expect(checkoutServiceStub.cancelPurchase).toHaveBeenCalledWith('tenant-test', 25);
+    expect(component.createdPurchaseId()).toBeNull();
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+  });
+
+  it('prevents leaving checkout when the purchase cannot be cancelled', async () => {
+    checkoutServiceStub.cancelPurchase.mockRejectedValue({
+      error: { message: 'No se pudo cancelar la compra.' },
+    });
+    const { component } = createComponent();
+
+    await expect(component.canDeactivate()).resolves.toBe(false);
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith('No se pudo cancelar la compra.');
     expect(component.createdPurchaseId()).toBe(25);
   });
 

src/app/features/store/pages/checkout-page/checkout-page.component.ts

@@ -11,7 +11,7 @@ import {
 import { HttpErrorResponse } from '@angular/common/http';
 import { FormBuilder, Validators } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
-import { firstValueFrom, startWith } from 'rxjs';
+import { startWith } from 'rxjs';
 
 import { TenantService } from '../../../../core/services/tenant.service';
 import {
@@ -20,9 +20,8 @@ import {
   PurchaseDetailResponse,
 } from '../../../../core/services/checkout.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
-import { CartService } from '../../../../core/services/cart/cart.service';
+import { GlobalLoadingService } from '../../../../core/services/global-loading/global-loading.service';
 import { ToastService } from '../../../../core/services/toast.service';
-import { BankAccount } from '../../../../core/services/tenant.interface';
 import { CartComponent, CartItemMock } from '../../../../shared/components/cart/cart.component';
 import { StepComponent } from '../../../../shared/components/stepper/step.component';
 import { StepperComponent } from '../../../../shared/components/stepper/stepper.component';
@@ -65,9 +64,9 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   private readonly tenantService = inject(TenantService);
   private readonly checkoutService = inject(CheckoutService);
   private readonly authService = inject(AuthService);
-  private readonly cartService = inject(CartService);
-  private readonly qrPollingIntervalMs = 5_000;
+  private readonly globalLoadingService = inject(GlobalLoadingService);
   private readonly toastService = inject(ToastService);
+  private readonly qrPollingIntervalMs = 5_000;
   private readonly qrPollingMaxAttempts = 9;
   private readonly transferPollingIntervalMs = 3_000;
   private readonly transferPollingMaxAttempts = 4;
@@ -80,6 +79,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   private transferPollingRunId = 0;
   private paymentMethodRequestId = 0;
   private navigationStarted = false;
+  private cancelPurchasePromise: Promise<boolean> | null = null;
 
   @ViewChild(StepperComponent) stepper!: StepperComponent;
 
@@ -93,19 +93,6 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   protected readonly createdPurchase = signal<PurchaseDetailResponse | null>(null);
   protected readonly isLoadingPurchase = signal(true);
   protected readonly checkoutStepIndex = signal(0);
-  protected readonly canUpdateCartQuantity = computed(
-    () => this.tenantService.tenant()?.checkout_editing_policy?.allow_update_quantity ?? false,
-  );
-  protected readonly canUpdateCartVariant = computed(
-    () => this.tenantService.tenant()?.checkout_editing_policy?.allow_update_variant ?? false,
-  );
-  protected readonly canDeleteCartItems = computed(
-    () => this.tenantService.tenant()?.checkout_editing_policy?.allow_delete ?? false,
-  );
-  protected readonly canModifyCart = computed(
-    () => this.tenantService.tenant()?.checkout_editing_policy?.allow_modify ?? false,
-  );
-
   protected readonly cartSubtotal = computed(() => {
     const purchase = this.createdPurchase();
     return purchase ? parseFloat(purchase.subtotal) : 0;
@@ -134,9 +121,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   protected readonly transferDni = signal<string>('');
 
   protected readonly isUpdatingPurchase = signal(false);
-  protected readonly isEditingItems = signal(false);
-  protected readonly isUpdatingItem = signal(false);
-  protected readonly isPreparingItemEdit = signal(false);
+  protected readonly isCancellingPurchase = signal(false);
   protected readonly createdPurchaseId = signal<number | null>(null);
   protected readonly isGeneratingIntent = signal(false);
   protected readonly isPaymentLoading = computed(() => this.isGeneratingIntent());
@@ -198,191 +183,29 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       })),
       quantity: item.quantity,
       variantId: item.source_variant_id,
-      variants: item.variants,
     };
   }
 
-  protected async onEditingItemsChange(editing: boolean): Promise<void> {
-    if (this.isUpdatingItem() || this.isPreparingItemEdit()) {
+  protected async onModifyPurchase(): Promise<void> {
+    if (this.isCancellingPurchase()) {
       return;
     }
 
-    if (editing && !this.canModifyCart()) {
-      const tenant = this.tenantService.tenant();
-      const purchaseId = this.createdPurchaseId();
-
-      if (!tenant || !purchaseId) {
-        return;
-      }
-
-      this.isPreparingItemEdit.set(true);
-      try {
-        await this.checkoutService.cancelPurchase(tenant.codigo, purchaseId);
-        this.createdPurchaseId.set(null);
-        this.createdPurchase.set(null);
-        await firstValueFrom(this.cartService.loadCart());
-        await this.router.navigate(['/'], {
-          queryParams: { openCart: true },
-        });
-      } catch (error) {
-        this.handleCheckoutError(error, 'No se pudo restaurar el carrito para editarlo.');
-      } finally {
-        this.isPreparingItemEdit.set(false);
-      }
-
-      return;
-    }
-
-    if (!editing) {
-      this.isEditingItems.set(false);
-
-      if (this.stepper?.currentStepIndex() === 1) {
-        void this.selectPaymentMethod(this.selectedPaymentMethod());
-      }
-
-      return;
-    }
-
-    this.isEditingItems.set(true);
-    this.stopQrPolling();
-    this.stopTransferPolling();
-    this.qrData.set(null);
-    this.qrPaymentStatus.set('idle');
-    this.transferAccount.set(null);
-    this.transferValidationStatus.set('idle');
-
-    const tenant = this.tenantService.tenant();
-    const purchaseId = this.createdPurchaseId();
-
-    if (!tenant || !purchaseId) {
-      this.isEditingItems.set(false);
-      return;
-    }
-
-    this.isPreparingItemEdit.set(true);
+    this.globalLoadingService.start();
     try {
-      const purchase = await this.checkoutService.prepareItemEditing(tenant.codigo, purchaseId);
-      this.createdPurchase.set(purchase);
-    } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo preparar la compra para editarla.');
-      this.isEditingItems.set(false);
+      const cancelled = await this.cancelCurrentPurchase();
+      if (!cancelled) return;
+
+      await this.router.navigate(['/'], {
+        queryParams: { openCart: true },
+      });
     } finally {
-      this.isPreparingItemEdit.set(false);
-    }
-  }
-
-  protected async onPurchaseItemQuantityChange(event: {
-    item: CartItemMock;
-    quantity: number;
-  }): Promise<void> {
-    const tenant = this.tenantService.tenant();
-    const purchaseId = this.createdPurchaseId();
-    const itemId = event.item.cartItemId;
-
-    if (
-      !this.canUpdateCartQuantity() ||
-      !tenant ||
-      !purchaseId ||
-      !itemId ||
-      this.isUpdatingItem() ||
-      !this.isEditingItems()
-    ) {
-      return;
-    }
-
-    this.isUpdatingItem.set(true);
-    try {
-      const purchase = await this.checkoutService.updateItemQuantity(
-        tenant.codigo,
-        purchaseId,
-        itemId,
-        event.quantity,
-        this.createdPurchase()?.cart_id ?? null,
-        this.createdPurchase()?.items_source ?? 'purchase',
-      );
-      this.createdPurchase.set(purchase);
-    } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo actualizar la cantidad del producto.');
-    } finally {
-      this.isUpdatingItem.set(false);
-    }
-  }
-
-  protected async onPurchaseItemVariantChange(event: {
-    item: CartItemMock;
-    variantId: number;
-  }): Promise<void> {
-    const tenant = this.tenantService.tenant();
-    const purchase = this.createdPurchase();
-    const itemId = event.item.cartItemId;
-
-    if (
-      !this.canUpdateCartVariant() ||
-      !tenant ||
-      !purchase ||
-      !itemId ||
-      this.isUpdatingItem() ||
-      !this.isEditingItems()
-    ) {
-      return;
-    }
-
-    this.isUpdatingItem.set(true);
-    try {
-      this.createdPurchase.set(
-        await this.checkoutService.updateItemVariant(
-          tenant.codigo,
-          purchase.id,
-          itemId,
-          event.variantId,
-          event.item.quantity,
-          purchase.cart_id,
-          purchase.items_source,
-        ),
-      );
-    } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo actualizar la variante del producto.');
-    } finally {
-      this.isUpdatingItem.set(false);
-    }
-  }
-
-  protected async onPurchaseItemRemove(event: { item: CartItemMock }): Promise<void> {
-    const tenant = this.tenantService.tenant();
-    const purchase = this.createdPurchase();
-    const itemId = event.item.cartItemId;
-
-    if (
-      !this.canDeleteCartItems() ||
-      !tenant ||
-      !purchase ||
-      !itemId ||
-      this.isUpdatingItem() ||
-      !this.isEditingItems()
-    ) {
-      return;
-    }
-
-    this.isUpdatingItem.set(true);
-    try {
-      this.createdPurchase.set(
-        await this.checkoutService.removeItem(
-          tenant.codigo,
-          purchase.id,
-          itemId,
-          purchase.cart_id,
-          purchase.items_source,
-        ),
-      );
-    } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo eliminar el producto de la compra.');
-    } finally {
-      this.isUpdatingItem.set(false);
+      this.globalLoadingService.stop();
     }
   }
 
   protected async onStep1Continue(): Promise<void> {
-    if (this.form.invalid || this.isUpdatingPurchase() || this.isEditingItems()) return;
+    if (this.form.invalid || this.isUpdatingPurchase()) return;
 
     const tenant = this.tenantService.tenant();
     const purchaseId = this.createdPurchaseId();
@@ -405,39 +228,76 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       // Auto trigger intent for default option
       void this.selectPaymentMethod(this.selectedPaymentMethod());
     } catch (error) {
-      this.handleCheckoutError(error, 'No se pudieron actualizar los datos de la compra.');
+      console.error('Failed to create purchase:', error);
+      this.showRequestError(error, 'No se pudieron actualizar los datos de la compra.');
     } finally {
       this.isUpdatingPurchase.set(false);
     }
   }
 
   protected async onCancel(): Promise<void> {
-    if (await this.canDeactivate()) {
-      void this.router.navigate(['/']);
-    }
+    void this.router.navigate(['/']);
   }
 
   public async canDeactivate(): Promise<boolean> {
     this.stopQrPolling();
     this.stopTransferPolling();
 
+    if (this.cancelPurchasePromise) {
+      return this.cancelPurchasePromise;
+    }
+
     if (this.navigationStarted) {
       return true;
     }
 
-    // The checkout cart remains attached to its purchase. Once the user adds a
-    // new item, the cart API creates a separate active cart automatically.
+    this.globalLoadingService.start();
     try {
-      await firstValueFrom(this.cartService.loadCart());
-    } catch (error) {
-      console.error('Failed to load the active cart after leaving checkout:', error);
+      return await this.cancelCurrentPurchase();
+    } finally {
+      this.globalLoadingService.stop();
+    }
+  }
+
+  private cancelCurrentPurchase(): Promise<boolean> {
+    if (this.cancelPurchasePromise) {
+      return this.cancelPurchasePromise;
     }
 
-    return true;
+    this.cancelPurchasePromise = this.performPurchaseCancellation().finally(() => {
+      this.cancelPurchasePromise = null;
+    });
+
+    return this.cancelPurchasePromise;
+  }
+
+  private async performPurchaseCancellation(): Promise<boolean> {
+    const tenant = this.tenantService.tenant();
+    const purchaseId = this.createdPurchaseId();
+    if (!tenant || !purchaseId) {
+      return true;
+    }
+
+    this.isCancellingPurchase.set(true);
+
+    try {
+      await this.checkoutService.cancelPurchase(tenant.codigo, purchaseId);
+      this.createdPurchaseId.set(null);
+      this.createdPurchase.set(null);
+
+      this.navigationStarted = true;
+      return true;
+    } catch (error) {
+      console.error('Failed to cancel the current purchase:', error);
+      this.showRequestError(error, 'No se pudo cancelar la compra.');
+      return false;
+    } finally {
+      this.isCancellingPurchase.set(false);
+    }
   }
 
   protected async selectPaymentMethod(method: PaymentMethod): Promise<void> {
-    if (this.navigationStarted || this.isEditingItems()) {
+    if (this.navigationStarted) {
       return;
     }
 
@@ -481,17 +341,14 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         this.startQrPolling();
       }
     } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo generar la intenci\u00f3n de pago.');
+      console.error('Failed to generate payment intent:', error);
+      this.showRequestError(error, 'No se pudo generar el pago.');
     } finally {
       this.isGeneratingIntent.set(false);
     }
   }
 
   protected async generateTransferIntent(dni: string): Promise<void> {
-    if (this.isEditingItems()) {
-      return;
-    }
-
     const purchaseId = this.createdPurchaseId();
     const tenant = this.tenantService.tenant();
 
@@ -518,7 +375,8 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         });
       }
     } catch (error) {
-      this.handleCheckoutError(error, 'No se pudo generar la intenci\u00f3n de transferencia.');
+      console.error('Failed to generate transfer payment intent:', error);
+      this.showRequestError(error, 'No se pudo generar el pago por transferencia.');
     } finally {
       this.isGeneratingIntent.set(false);
     }
@@ -549,7 +407,6 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       !purchaseId ||
       !tenant ||
       this.navigationStarted ||
-      this.isEditingItems() ||
       this.transferValidationStatus() === 'checking'
     ) {
       return;
@@ -579,7 +436,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
     } catch (error) {
       const expired = this.handleCheckoutError(
         error,
-        'No se pudo enviar la compra a revisi\u00f3n.',
+        'No se pudo enviar el pago para su validación.',
       );
 
       if (!expired && runId === this.transferPollingRunId) {
@@ -771,6 +628,8 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       return;
     }
 
+    this.createdPurchaseId.set(purchaseId);
+
     try {
       const purchase = await this.checkoutService
         .withCustomLoading()
@@ -811,30 +670,41 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       }
     } catch (error) {
       console.error('Failed to load purchase:', error);
+      this.showRequestError(error, 'No se pudo cargar la compra.');
       void this.router.navigate(['/']);
     }
   }
 
+  private showRequestError(error: unknown, fallbackMessage: string): void {
+    const payload =
+      typeof error === 'object' && error !== null && 'error' in error
+        ? (error as { error?: { message?: unknown } }).error
+        : undefined;
+    const message =
+      typeof payload?.message === 'string' && payload.message.trim()
+        ? payload.message
+        : fallbackMessage;
+
+    this.toastService.danger(message);
+  }
+
   private handleCheckoutError(error: unknown, fallbackMessage: string): boolean {
     if (!(error instanceof HttpErrorResponse)) {
       this.toastService.danger(fallbackMessage);
-
       return false;
     }
 
     const response = error.error as ApiErrorResponse | null;
 
     if (response?.code === 'purchase.expired' || this.hasExpiredPurchase()) {
-      this.navigationStarted = true;
       this.stopQrPolling();
       this.stopTransferPolling();
       this.toastService.danger(
         response?.code === 'purchase.expired' && response.message
           ? response.message
-          : 'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+          : 'La compra venció. Iniciá una nueva compra.',
       );
       void this.router.navigate(['/']);
-
       return true;
     }
 
@@ -843,7 +713,6 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       : undefined;
 
     this.toastService.danger(validationMessage ?? response?.message ?? fallbackMessage);
-
     return false;
   }
 

src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts

@@ -9,6 +9,7 @@ import { beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CatalogItemDetail } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { ProductDetailPageComponent } from './product-detail-page.component';
@@ -176,6 +177,21 @@ describe('ProductDetailPageComponent', () => {
     expect(element.querySelector('.product-carousel__discount-badge')).toBeNull();
   });
 
+  it('reloads product availability when the cart changes', async () => {
+    catalogServiceStub.getCatalogItem.mockReturnValue(
+      of({ ...mockProduct, maximum_addable_quantity: 4 }),
+    );
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+    fixture.detectChanges();
+
+    expect(catalogServiceStub.getCatalogItem).toHaveBeenCalledWith(1, undefined);
+    expect(fixture.componentInstance['selectedVariantMax']()).toBe(4);
+  });
+
   it('shows error message if the resolver cannot load the product', async () => {
     resolveProductError(PRODUCT_DETAIL_ERROR_MESSAGE);
     await configureTestingModule();
@@ -510,9 +526,9 @@ describe('ProductDetailPageComponent', () => {
     await configureTestingModule();
     const fixture = TestBed.createComponent(ProductDetailPageComponent);
     fixture.detectChanges();
-    const buyButton = Array.from(fixture.nativeElement.querySelectorAll('app-button button')).find(
-      (button) => button.textContent?.trim() === 'Comprar',
-    ) as HTMLButtonElement;
+    const buyButton = Array.from(
+      fixture.nativeElement.querySelectorAll('app-button button') as NodeListOf<HTMLButtonElement>,
+    ).find((button) => button.textContent?.trim() === 'Comprar') as HTMLButtonElement;
 
     buyButton.click();
     await Promise.resolve();

src/app/features/store/pages/product-detail-page/product-detail-page.component.ts

@@ -17,6 +17,7 @@ import { ActivatedRoute, Router, RouterModule } from '@angular/router';
 import { Subscription } from 'rxjs';
 
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import {
@@ -51,6 +52,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   private readonly route = inject(ActivatedRoute);
   private readonly router = inject(Router);
   private readonly catalogService = inject(CatalogService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly toastService = inject(ToastService);
   private readonly cartService = inject(CartService);
   private readonly checkoutService = inject(CheckoutService);
@@ -64,6 +66,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
 
   private routeSub: Subscription | null = null;
   private productSub: Subscription | null = null;
+  private availabilityChangedSub: Subscription | null = null;
   private carouselResizeObserver: ResizeObserver | null = null;
   private observedCarouselPreview: HTMLElement | null = null;
   private measurementTimer: ReturnType<typeof setTimeout> | null = null;
@@ -150,6 +153,10 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
+    this.availabilityChangedSub = this.catalogAvailabilityService.availabilityChanged$.subscribe(
+      () => this.refreshProductAvailability(),
+    );
+
     this.routeSub = this.route.data.subscribe((data) => {
       const resolvedData = data['productDetailData'] as ProductDetailResolvedData | undefined;
 
@@ -160,6 +167,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
+    this.availabilityChangedSub?.unsubscribe();
     this.routeSub?.unsubscribe();
     this.productSub?.unsubscribe();
     this.carouselResizeObserver?.disconnect();
@@ -196,6 +204,32 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
       });
   }
 
+  private refreshProductAvailability(): void {
+    const currentProduct = this.product();
+    if (!currentProduct) {
+      return;
+    }
+
+    const variantId = this.selectedVariant()?.id;
+    this.productSub?.unsubscribe();
+    this.productSub = this.catalogService
+      .withCustomLoading()
+      .getCatalogItem(currentProduct.id, variantId)
+      .subscribe({
+        next: (product) => {
+          this.applyProduct(product, false);
+
+          const maximum = this.selectedVariantMax();
+          if (maximum !== null && this.quantity() > maximum) {
+            this.quantity.set(Math.max(1, maximum));
+          }
+        },
+        error: () => {
+          // Keep the last known availability if the silent refresh fails.
+        },
+      });
+  }
+
   private applyResolvedData(resolvedData: ProductDetailResolvedData): void {
     this.productSub?.unsubscribe();
     this.loading.set(false);

src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts

@@ -15,6 +15,7 @@ import {
 describe('productDetailResolver', () => {
   const product: CatalogItemDetail = {
     id: 1,
+    type: 'product',
     category_id: 10,
     brand_id: null,
     slug: 'auriculares-bluetooth',

src/app/features/store/pages/search-page/search-page.component.spec.ts

@@ -7,6 +7,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -108,6 +109,16 @@ describe('SearchPageComponent', () => {
     );
   });
 
+  it('repeats the current search when catalog availability changes', () => {
+    const fixture = TestBed.createComponent(SearchPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(searchCatalog).toHaveBeenCalledTimes(2);
+    expect(searchCatalog).toHaveBeenLastCalledWith({ q: 'running', page: 1 });
+  });
+
   it('renders the search title and query subtitle with the category header layout', () => {
     const fixture = TestBed.createComponent(SearchPageComponent);
     fixture.detectChanges();

src/app/features/store/pages/search-page/search-page.component.ts

@@ -9,7 +9,17 @@ import {
   signal,
 } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { catchError, distinctUntilChanged, finalize, map, of, switchMap, tap } from 'rxjs';
+import {
+  catchError,
+  combineLatest,
+  distinctUntilChanged,
+  finalize,
+  map,
+  of,
+  startWith,
+  switchMap,
+  tap,
+} from 'rxjs';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
@@ -22,6 +32,7 @@ import {
   CatalogProductLayout,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { ApiPaginatedResponse } from '../../../../core/services/api-paginated-response.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -46,6 +57,7 @@ interface SearchRouteState {
 export class SearchPageComponent {
   private readonly minSearchLength = 3;
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly destroyRef = inject(DestroyRef);
@@ -86,26 +98,33 @@ export class SearchPageComponent {
   });
 
   constructor() {
-    this.route.queryParamMap
-      .pipe(
-        map(
-          (params): SearchRouteState => ({
-            query: params.get('q')?.trim() ?? '',
-            page: this.parsePage(params.get('page')),
-          }),
-        ),
-        distinctUntilChanged(
-          (previous, current) => previous.query === current.query && previous.page === current.page,
-        ),
-        tap(({ query }) => {
-          this.query.set(query);
-          this.results.set(null);
-          this.error.set(
-            query.length >= this.minSearchLength
-              ? null
-              : `Ingresá al menos ${this.minSearchLength} caracteres para buscar.`,
-          );
+    const routeState$ = this.route.queryParamMap.pipe(
+      map(
+        (params): SearchRouteState => ({
+          query: params.get('q')?.trim() ?? '',
+          page: this.parsePage(params.get('page')),
         }),
+      ),
+      distinctUntilChanged(
+        (previous, current) => previous.query === current.query && previous.page === current.page,
+      ),
+      tap(({ query }) => {
+        this.query.set(query);
+        this.results.set(null);
+        this.error.set(
+          query.length >= this.minSearchLength
+            ? null
+            : `Ingresá al menos ${this.minSearchLength} caracteres para buscar.`,
+        );
+      }),
+    );
+
+    combineLatest([
+      routeState$,
+      this.catalogAvailabilityService.availabilityChanged$.pipe(startWith(undefined)),
+    ])
+      .pipe(
+        map(([routeState]) => routeState),
         switchMap(({ query, page }) => {
           if (query.length < this.minSearchLength) {
             return of(null);

src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts

@@ -12,6 +12,7 @@ import {
   CatalogFeaturedItem,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -78,12 +79,14 @@ function provideActivatedRoute(catalogData: StoreHomeCatalogResolvedData) {
 const pageOneItems: CatalogFeaturedItem[] = [
   {
     id: 1,
+    type: 'product',
     nombre: 'Auriculares Bluetooth',
     precio: '24999.00',
     image: '/catalog/auriculares.jpg',
   },
   {
     id: 2,
+    type: 'product',
     nombre: 'Teclado Mecanico',
     precio: '18999.00',
     image: null,
@@ -159,6 +162,30 @@ describe('StoreHomePageComponent', () => {
     );
   });
 
+  it('reloads the catalog when availability changes', async () => {
+    const refreshedCatalog = createCatalog();
+    const catalogServiceStub = {
+      getCatalog: vi.fn().mockReturnValue(of(refreshedCatalog)),
+      getFeaturedGroupItems: vi.fn(),
+      withCustomLoading: vi.fn(),
+    };
+    catalogServiceStub.withCustomLoading.mockReturnValue(catalogServiceStub);
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        provideActivatedRoute({ response: createCatalog(), error: null }),
+        { provide: CatalogService, useValue: catalogServiceStub },
+      ],
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(catalogServiceStub.getCatalog).toHaveBeenCalledOnce();
+  });
+
   it('renders the carousel URLs received in tenant extras', async () => {
     const carousel = ['https://example.com/carousel-1.webp', 'https://example.com/carousel-2.webp'];
 
@@ -378,7 +405,9 @@ describe('StoreHomePageComponent', () => {
   });
 
   it('requests another page for the selected featured group', async () => {
-    const pageTwoItems = [{ id: 3, nombre: 'Mouse Gamer', precio: '15999.00', image: null }];
+    const pageTwoItems: CatalogFeaturedItem[] = [
+      { id: 3, type: 'product', nombre: 'Mouse Gamer', precio: '15999.00', image: null },
+    ];
     const catalogServiceStub = {
       getCatalog: vi.fn(),
       getFeaturedGroupItems: vi.fn().mockReturnValue(of(createItemsPage(pageTwoItems, 2, 2))),

src/app/features/store/pages/store-home-page/store-home-page.component.ts

@@ -15,6 +15,7 @@ import { finalize, Subscription } from 'rxjs';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
 import { CatalogFeaturedGroup } from '../../../../core/services/catalog/catalog.interface';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -49,6 +50,7 @@ import {
 })
 export class StoreHomePageComponent implements OnInit, OnDestroy {
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly route = inject(ActivatedRoute);
@@ -96,9 +98,13 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
   protected readonly hasMainCarouselImages = computed(() => this.mainCarouselImages().length > 0);
 
   private catalogRequestSubscription: Subscription | null = null;
+  private availabilityChangedSubscription: Subscription | null = null;
   private readonly groupRequestSubscriptions = new Map<number, Subscription>();
 
   ngOnInit(): void {
+    this.availabilityChangedSubscription =
+      this.catalogAvailabilityService.availabilityChanged$.subscribe(() => this.loadCatalog(true));
+
     const resolvedData = this.route.snapshot.data['catalogData'] as
       | StoreHomeCatalogResolvedData
       | undefined;
@@ -112,6 +118,7 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
+    this.availabilityChangedSubscription?.unsubscribe();
     this.catalogRequestSubscription?.unsubscribe();
     this.groupRequestSubscriptions.forEach((subscription) => subscription.unsubscribe());
   }
@@ -264,20 +271,27 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
     });
   }
 
-  private loadCatalog(): void {
-    this.loading.set(true);
-    this.error.set(null);
+  private loadCatalog(silent = false): void {
+    if (!silent) {
+      this.loading.set(true);
+      this.error.set(null);
+    }
     this.catalogRequestSubscription?.unsubscribe();
 
     this.catalogRequestSubscription = this.catalogService
       .withCustomLoading()
       .getCatalog()
       .subscribe({
-        next: (catalog) => this.catalog.set(catalog),
+        next: (catalog) => {
+          this.catalog.set(catalog);
+          this.error.set(null);
+        },
         error: () => {
-          this.catalog.set([]);
+          if (!silent) {
+            this.catalog.set([]);
+            this.error.set(STORE_HOME_PRODUCTS_ERROR_MESSAGE);
+          }
           this.loading.set(false);
-          this.error.set(STORE_HOME_PRODUCTS_ERROR_MESSAGE);
         },
         complete: () => this.loading.set(false),
       });

src/app/shared/components/cart/cart.component.html

@@ -9,17 +9,17 @@
       @if (
         allowModify() &&
         (!readonly() || showModifyWhenReadonly()) &&
-        requireEditingMode() &&
+        (requireEditingMode() || modifyAsAction()) &&
         items().length > 0
       ) {
         <button
           class="btn btn-link p-0 border-0 cart-edit-btn"
           type="button"
-          [attr.aria-pressed]="editing()"
+          [attr.aria-pressed]="modifyAsAction() ? null : editing()"
           [disabled]="editingDisabled()"
           (click)="toggleEditing()"
         >
-          {{ editing() ? 'Listo' : 'Modificar' }}
+          {{ !modifyAsAction() && editing() ? 'Listo' : 'Modificar' }}
         </button>
       }
 

src/app/shared/components/cart/cart.component.spec.ts

@@ -367,6 +367,57 @@ describe('CartComponent', () => {
     expect(editingChange).toHaveBeenLastCalledWith(false);
   });
 
+  it('emits Modificar as an action without toggling to Listo', async () => {
+    await TestBed.configureTestingModule({
+      imports: [CartComponent],
+      providers: [
+        {
+          provide: CartService,
+          useValue: {
+            cart: signal(null).asReadonly(),
+            updateItemQuantity: vi.fn(),
+            removeItem: vi.fn(),
+          },
+        },
+        { provide: ModalService, useValue: {} },
+        {
+          provide: ToastService,
+          useValue: { success: vi.fn(), info: vi.fn(), danger: vi.fn() },
+        },
+      ],
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(CartComponent);
+    fixture.componentRef.setInput('items', [
+      {
+        cartItemId: 10,
+        imageUrl: null,
+        product: 'Producto de prueba',
+        originalPrice: null,
+        discountedPrice: 1000,
+        discountPercentage: null,
+        attributes: [],
+        quantity: 1,
+      },
+    ]);
+    fixture.componentRef.setInput('readonly', true);
+    fixture.componentRef.setInput('showModifyWhenReadonly', true);
+    fixture.componentRef.setInput('modifyAsAction', true);
+    const modify = vi.fn();
+    fixture.componentInstance.modify.subscribe(modify);
+    fixture.detectChanges();
+
+    const modifyButton = fixture.debugElement.query(By.css('.cart-edit-btn'));
+    expect(modifyButton.nativeElement.textContent.trim()).toBe('Modificar');
+
+    modifyButton.nativeElement.click();
+    fixture.detectChanges();
+
+    expect(modify).toHaveBeenCalledOnce();
+    expect(modifyButton.nativeElement.textContent.trim()).toBe('Modificar');
+    expect(fixture.componentInstance.editing()).toBe(false);
+  });
+
   it('allows editing directly when the optional Modificar toggle is disabled', async () => {
     await TestBed.configureTestingModule({
       imports: [CartComponent],

src/app/shared/components/cart/cart.component.ts

@@ -56,6 +56,7 @@ export class CartComponent {
   readonly allowUpdateQuantity = input<boolean>(true);
   readonly allowModify = input<boolean>(true);
   readonly showModifyWhenReadonly = input<boolean>(false);
+  readonly modifyAsAction = input<boolean>(false);
   readonly requireEditingMode = input<boolean>(false);
   readonly allowUpdateVariant = input<boolean>(true);
   readonly allowDelete = input<boolean>(true);
@@ -66,6 +67,7 @@ export class CartComponent {
   readonly editing = model<boolean>(false);
 
   readonly closed = output<void>();
+  readonly modify = output<void>();
   readonly itemQuantityChange = output<{
     item: CartItemMock;
     index: number;
@@ -257,6 +259,11 @@ export class CartComponent {
       return;
     }
 
+    if (this.modifyAsAction()) {
+      this.modify.emit();
+      return;
+    }
+
     const editing = !this.editing();
     this.editing.set(editing);
   }