From 4bb69d1b06702cc9b2973e5044a5d3179b7d3d31 Mon Sep 17 00:00:00 2001
From: ncoronel <ncoronel@quo.ar>
Date: Mon, 29 Jun 2026 17:01:19 -0300
Subject: [PATCH] feat: implement store home page with paginated product
 listing and error handling

---
 .../store-home-page.component.html            |  60 +++--
 .../store-home-page.component.scss            |  94 +-------
 .../store-home-page.component.spec.ts         | 227 ++++++++++++++++++
 .../store-home-page.component.ts              | 112 ++++++++-
 4 files changed, 377 insertions(+), 116 deletions(-)
 create mode 100644 src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts

diff --git a/src/app/features/store/pages/store-home-page/store-home-page.component.html b/src/app/features/store/pages/store-home-page/store-home-page.component.html
index 759ca67..7d556cc 100644
--- a/src/app/features/store/pages/store-home-page/store-home-page.component.html
+++ b/src/app/features/store/pages/store-home-page/store-home-page.component.html
@@ -1,21 +1,45 @@
-<section class="store-home">
-  <div class="store-home__inner">
-    <div class="store-home__hero">
-      <span class="store-home__eyebrow">Store Layout</span>
-      <h1>Tienda en construccion</h1>
-      <p class="store-home__lead">
-        Esta pagina placeholder deja visible el shell del store mientras se conectan categorias,
-        catalogo y acciones reales.
-      </p>
-    </div>
+<section class="py-5">
+  <div class="container-xl px-3 px-md-4">
+    <app-store-section title="Productos">
+      <div class="d-grid gap-4">
+        @if (error()) {
+          <p class="alert text-center mb-0 store-home__alert-error">{{ error() }}</p>
+        } @else if (loading() && !productCards().length) {
+          <p class="alert alert-light border text-center mb-0">Cargando productos...</p>
+        } @else if (!productCards().length) {
+          <p class="alert alert-light border text-center mb-0">No hay productos disponibles en este momento.</p>
+        } @else {
+          <div class="row row-cols-1 row-cols-md-2 row-cols-xl-4 g-4">
+            @for (product of productCards(); track product.id) {
+              <div class="col">
+                <app-product-card
+                  [title]="product.title"
+                  [originalPrice]="product.originalPrice"
+                  [discount]="product.discount"
+                  [transferPrice]="product.transferPrice"
+                  [imageUrl]="product.imageUrl"
+                  (buy)="onBuyProduct(product.id)"
+                />
+              </div>
+            }
+          </div>
+        }
 
-    <div class="store-home__highlights">
-      @for (highlight of highlights; track highlight) {
-        <article class="store-home__card">
-          <span class="store-home__card-index" aria-hidden="true">0{{ $index + 1 }}</span>
-          <p>{{ highlight }}</p>
-        </article>
-      }
-    </div>
+        @if (loading() && productCards().length) {
+          <p class="alert alert-light border text-center mb-0 py-2">Actualizando productos...</p>
+        }
+
+        @if (totalPages() > 1) {
+          <div class="d-flex justify-content-center">
+            <app-paginator
+              [page]="currentPage()"
+              [totalPages]="totalPages()"
+              [disabled]="loading()"
+              (pageChange)="onPageChange($event)"
+            />
+          </div>
+        }
+      </div>
+    </app-store-section>
   </div>
 </section>
diff --git a/src/app/features/store/pages/store-home-page/store-home-page.component.scss b/src/app/features/store/pages/store-home-page/store-home-page.component.scss
index 8953f81..fc76535 100644
--- a/src/app/features/store/pages/store-home-page/store-home-page.component.scss
+++ b/src/app/features/store/pages/store-home-page/store-home-page.component.scss
@@ -2,95 +2,9 @@
   display: block;
 }
 
-.store-home {
-  padding: 3rem 0 4rem;
-}
-
-.store-home__inner {
-  width: min(100% - 3rem, 75rem);
-  margin: 0 auto;
-  display: grid;
-  gap: 1.5rem;
-}
-
-.store-home__hero {
-  padding: clamp(2rem, 4vw, 3rem);
-  border: 1px solid #e4e4e4;
-  border-radius: 1.5rem;
-  background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
-  box-shadow: 0 1.2rem 2.2rem rgba(17, 17, 17, 0.06);
-}
-
-.store-home__eyebrow {
-  display: inline-block;
-  margin-bottom: 0.75rem;
-  font-size: 0.78rem;
-  font-weight: 700;
-  letter-spacing: 0.08em;
-  text-transform: uppercase;
-  color: #666666;
-}
-
-h1 {
-  margin-bottom: 0.75rem;
-  font-size: clamp(2rem, 4vw, 3.25rem);
-  font-weight: 700;
-  letter-spacing: -0.05em;
-}
-
-.store-home__lead {
-  max-width: 42rem;
+.store-home__alert-error {
   margin: 0;
-  font-size: 1rem;
-  line-height: 1.6;
-  color: #4a4a4a;
-}
-
-.store-home__highlights {
-  display: grid;
-  grid-template-columns: repeat(3, minmax(0, 1fr));
-  gap: 1rem;
-}
-
-.store-home__card {
-  display: grid;
-  gap: 0.9rem;
-  padding: 1.5rem;
-  border: 1px solid #e4e4e4;
-  border-radius: 1.25rem;
-  background-color: #ffffff;
-  box-shadow: 0 0.75rem 1.5rem rgba(17, 17, 17, 0.04);
-}
-
-.store-home__card-index {
-  font-size: 0.85rem;
-  font-weight: 700;
-  letter-spacing: 0.08em;
-  color: #707070;
-}
-
-.store-home__card p {
-  margin: 0;
-  line-height: 1.6;
-  color: #333333;
-}
-
-@media (max-width: 991.98px) {
-  .store-home__highlights {
-    grid-template-columns: repeat(2, minmax(0, 1fr));
-  }
-}
-
-@media (max-width: 767.98px) {
-  .store-home {
-    padding: 2rem 0 3rem;
-  }
-
-  .store-home__inner {
-    width: min(100% - 1.5rem, 75rem);
-  }
-
-  .store-home__highlights {
-    grid-template-columns: minmax(0, 1fr);
-  }
+  border-color: rgba(var(--tenant-danger-rgb, 220, 53, 69), 0.18);
+  background-color: rgba(var(--tenant-danger-rgb, 220, 53, 69), 0.08);
+  color: var(--tenant-danger, #dc3545);
 }
diff --git a/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts b/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts
new file mode 100644
index 0000000..ffe3e59
--- /dev/null
+++ b/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts
@@ -0,0 +1,227 @@
+import { TestBed } from '@angular/core/testing';
+import { Subject, of, throwError } from 'rxjs';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { ApiPaginatedResponse } from '../../../../core/services/api-paginated-response.interface';
+import { Product } from '../../../../core/services/catalog/catalog.interface';
+import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { StoreHomePageComponent } from './store-home-page.component';
+
+function createPaginatedResponse(
+  products: Product[],
+  currentPage: number,
+  lastPage: number
+): ApiPaginatedResponse<Product[]> {
+  return {
+    data: products,
+    meta: {
+      current_page: currentPage,
+      from: products.length ? 1 : null,
+      last_page: lastPage,
+      links: [],
+      path: '/productos',
+      per_page: 12,
+      to: products.length || null,
+      total: products.length
+    },
+    links: {
+      first: '/productos?page=1',
+      last: `/productos?page=${lastPage}`,
+      prev: currentPage > 1 ? `/productos?page=${currentPage - 1}` : null,
+      next: currentPage < lastPage ? `/productos?page=${currentPage + 1}` : null
+    }
+  };
+}
+
+describe('StoreHomePageComponent', () => {
+  const pageOneProducts: Product[] = [
+    {
+      id: 1,
+      tenant_codigo: 'test',
+      categoria_id: 10,
+      slug: 'auriculares-bluetooth',
+      nombre: 'Auriculares Bluetooth',
+      precio: '24999'
+    },
+    {
+      id: 2,
+      tenant_codigo: 'test',
+      categoria_id: 11,
+      slug: 'teclado-mecanico',
+      nombre: 'Teclado Mecanico',
+      precio: '18999'
+    }
+  ];
+
+  beforeEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it('loads page 1 on init, renders the products title and the fetched product cards', async () => {
+    const catalogServiceStub = {
+      getProductos: vi.fn().mockReturnValue(of(createPaginatedResponse(pageOneProducts, 1, 3)))
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        {
+          provide: CatalogService,
+          useValue: catalogServiceStub
+        }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(catalogServiceStub.getProductos).toHaveBeenCalledWith({ page: 1 });
+    expect(element.querySelector('.store-section__title')?.textContent?.trim()).toBe('Productos');
+    expect(element.querySelectorAll('app-product-card')).toHaveLength(2);
+    expect(element.textContent).toContain('Auriculares Bluetooth');
+    expect(element.textContent).toContain('Teclado Mecanico');
+    expect(element.querySelector('[data-testid="paginator-status"]')?.textContent?.trim()).toBe('1/3');
+  });
+
+  it('requests the next page when the paginator emits a page change', async () => {
+    const catalogServiceStub = {
+      getProductos: vi
+        .fn()
+        .mockReturnValueOnce(of(createPaginatedResponse(pageOneProducts, 1, 3)))
+        .mockReturnValueOnce(
+          of(
+            createPaginatedResponse(
+              [
+                {
+                  id: 3,
+                  tenant_codigo: 'test',
+                  categoria_id: 12,
+                  slug: 'mouse-gamer',
+                  nombre: 'Mouse Gamer',
+                  precio: '15999'
+                }
+              ],
+              2,
+              3
+            )
+          )
+        )
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        {
+          provide: CatalogService,
+          useValue: catalogServiceStub
+        }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+    (element.querySelector('[data-testid="paginator-next"]') as HTMLButtonElement).click();
+    fixture.detectChanges();
+
+    expect(catalogServiceStub.getProductos).toHaveBeenNthCalledWith(1, { page: 1 });
+    expect(catalogServiceStub.getProductos).toHaveBeenNthCalledWith(2, { page: 2 });
+    expect(element.querySelector('[data-testid="paginator-status"]')?.textContent?.trim()).toBe('2/3');
+    expect(element.textContent).toContain('Mouse Gamer');
+  });
+
+  it('disables the paginator while a new page request is in flight', async () => {
+    const nextPageSubject = new Subject<ApiPaginatedResponse<Product[]>>();
+    const catalogServiceStub = {
+      getProductos: vi
+        .fn()
+        .mockReturnValueOnce(of(createPaginatedResponse(pageOneProducts, 1, 3)))
+        .mockReturnValueOnce(nextPageSubject.asObservable())
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        {
+          provide: CatalogService,
+          useValue: catalogServiceStub
+        }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+    (element.querySelector('[data-testid="paginator-next"]') as HTMLButtonElement).click();
+    fixture.detectChanges();
+
+    expect(
+      Array.from(element.querySelectorAll('app-paginator button')).every(
+        (button) => (button as HTMLButtonElement).disabled
+      )
+    ).toBe(true);
+    expect(element.textContent).toContain('Actualizando productos...');
+
+    nextPageSubject.next(createPaginatedResponse(pageOneProducts, 2, 3));
+    nextPageSubject.complete();
+    fixture.detectChanges();
+
+    expect(
+      Array.from(element.querySelectorAll('app-paginator button')).some(
+        (button) => !(button as HTMLButtonElement).disabled
+      )
+    ).toBe(true);
+  });
+
+  it('shows an empty-state message and hides the paginator when there are no products', async () => {
+    const catalogServiceStub = {
+      getProductos: vi.fn().mockReturnValue(of(createPaginatedResponse([], 1, 1)))
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        {
+          provide: CatalogService,
+          useValue: catalogServiceStub
+        }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(element.textContent).toContain('No hay productos disponibles en este momento.');
+    expect(element.querySelector('app-paginator')).toBeNull();
+  });
+
+  it('shows an error message when the catalog request fails', async () => {
+    const catalogServiceStub = {
+      getProductos: vi.fn().mockReturnValue(throwError(() => new Error('boom')))
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        {
+          provide: CatalogService,
+          useValue: catalogServiceStub
+        }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(element.textContent).toContain('No pudimos cargar los productos en este momento.');
+    expect(element.querySelectorAll('app-product-card')).toHaveLength(0);
+  });
+});
diff --git a/src/app/features/store/pages/store-home-page/store-home-page.component.ts b/src/app/features/store/pages/store-home-page/store-home-page.component.ts
index b708858..f097236 100644
--- a/src/app/features/store/pages/store-home-page/store-home-page.component.ts
+++ b/src/app/features/store/pages/store-home-page/store-home-page.component.ts
@@ -1,14 +1,110 @@
-import { Component } from '@angular/core';
+import { ChangeDetectionStrategy, Component, OnDestroy, OnInit, computed, inject, signal } from '@angular/core';
+import { Subscription } from 'rxjs';
+
+import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { Product } from '../../../../core/services/catalog/catalog.interface';
+import { ProductCardComponent } from '../../../../shared/components/product-card/product-card.component';
+import { PaginatorComponent } from '../../../../shared/components/paginator/paginator.component';
+import { StoreSectionComponent } from '../../../../shared/components/store-section/store-section.component';
+
+interface StoreHomeProductCardViewModel {
+  id: number;
+  title: string;
+  originalPrice: number;
+  discount: null;
+  transferPrice: null;
+  imageUrl: null;
+}
 
 @Component({
   selector: 'app-store-home-page',
+  imports: [StoreSectionComponent, ProductCardComponent, PaginatorComponent],
   templateUrl: './store-home-page.component.html',
-  styleUrl: './store-home-page.component.scss'
+  styleUrl: './store-home-page.component.scss',
+  changeDetection: ChangeDetectionStrategy.OnPush
 })
-export class StoreHomePageComponent {
-  protected readonly highlights = [
-    'Header y footer listos para conectar con datos reales.',
-    'Barra de categorias reservada para sumar dropdown despues.',
-    'Placeholder inicial para validar layout, espaciados y responsive.'
-  ];
+export class StoreHomePageComponent implements OnInit, OnDestroy {
+  private readonly catalogService = inject(CatalogService);
+
+  private activeRequestId = 0;
+  private productsRequestSubscription: Subscription | null = null;
+
+  protected readonly currentPage = signal(1);
+  protected readonly products = signal<Product[]>([]);
+  protected readonly totalPages = signal(0);
+  protected readonly loading = signal(false);
+  protected readonly error = signal<string | null>(null);
+
+  protected readonly productCards = computed<StoreHomeProductCardViewModel[]>(() =>
+    this.products().map((product) => ({
+      id: product.id,
+      title: product.nombre,
+      originalPrice: this.parseProductPrice(product.precio),
+      discount: null,
+      transferPrice: null,
+      imageUrl: null
+    }))
+  );
+
+  ngOnInit(): void {
+    this.loadProducts(1);
+  }
+
+  ngOnDestroy(): void {
+    this.productsRequestSubscription?.unsubscribe();
+  }
+
+  protected onPageChange(page: number): void {
+    if (page === this.currentPage() || page < 1) {
+      return;
+    }
+
+    this.loadProducts(page);
+  }
+
+  protected onBuyProduct(_productId: number): void {}
+
+  private loadProducts(page: number): void {
+    this.activeRequestId += 1;
+    const requestId = this.activeRequestId;
+
+    this.productsRequestSubscription?.unsubscribe();
+    this.loading.set(true);
+    this.error.set(null);
+
+    this.productsRequestSubscription = this.catalogService.getProductos({ page }).subscribe({
+      next: (response) => {
+        if (requestId !== this.activeRequestId) {
+          return;
+        }
+
+        this.products.set(response.data ?? []);
+        this.currentPage.set(response.meta.current_page);
+        this.totalPages.set(response.meta.last_page);
+      },
+      error: () => {
+        if (requestId !== this.activeRequestId) {
+          return;
+        }
+
+        this.products.set([]);
+        this.totalPages.set(0);
+        this.loading.set(false);
+        this.error.set('No pudimos cargar los productos en este momento.');
+      },
+      complete: () => {
+        if (requestId !== this.activeRequestId) {
+          return;
+        }
+
+        this.loading.set(false);
+      }
+    });
+  }
+
+  private parseProductPrice(price: string): number {
+    const parsedPrice = Number(price);
+
+    return Number.isFinite(parsedPrice) ? parsedPrice : 0;
+  }
 }