feat(ticket-selector): implement ticket selector component with layout and functionality

src/app/core/services/catalog/catalog.interface.ts

@@ -48,6 +48,16 @@ export interface ProductAttribute {
 
 export type InventoryPolicy = 'tracked' | 'unlimited';
 
+export interface CatalogVariantOption {
+  value: string;
+  label: string;
+}
+
+export type CatalogVariantValue =
+  | string
+  | CatalogVariantOption
+  | Array<string | CatalogVariantOption>;
+
 export interface CatalogItemVariant {
   id: number;
   descripcion?: string | null;
@@ -60,7 +70,7 @@ export interface CatalogItemVariant {
   maximum_use_date?: string | null;
   effective_minimum_use_date?: string | null;
   effective_maximum_use_date?: string | null;
-  values: Record<string, string | string[]>;
+  values: Record<string, CatalogVariantValue>;
 }
 
 export interface SelectedCatalogItemVariant extends CatalogItemVariant {
@@ -91,15 +101,19 @@ export interface CatalogItemDetail {
   images?: string[];
 }
 
-export type CatalogProductLayout = 'row' | 'column_with_image' | 'column_with_cart';
+export type CatalogProductLayout =
-export type CatalogGroupLayout = 'paginated' | 'simple' | 'simple_vertical' | 'carousel';
+  | 'row'
+  | 'column_with_image'
+  | 'column_with_cart'
+  | 'ticket_selector';
+export type CatalogGroupLayout = 'paginated' | 'simple' | 'simple_vertical' | 'carousel' | 'single';
 
 export interface CatalogFeaturedItemVariant {
   id: number;
   descripcion?: string | null;
   precio?: string;
   stock_tecnico: number | null;
-  values: Record<string, string | string[]>;
+  values: Record<string, CatalogVariantValue>;
 }
 
 export interface CatalogFeaturedItem {

src/app/core/services/tenant.interface.ts

@@ -111,8 +111,8 @@ export interface Tenant {
   event?: TenantEvent | null;
   selected_bank_account_id?: number | null;
   selected_bank_account?: BankAccount | null;
-  search_product_layout?: 'row' | 'column_with_image' | 'column_with_cart';
+  search_product_layout?: 'row' | 'column_with_image' | 'column_with_cart' | 'ticket_selector';
-  search_group_layout?: 'paginated' | 'simple' | 'simple_vertical' | 'carousel';
+  search_group_layout?: 'paginated' | 'simple' | 'simple_vertical' | 'carousel' | 'single';
   search_items_per_page?: number;
   display_categories?: boolean;
   display_seach_bar?: boolean;

src/app/features/componentes-test/pages/reutilizables-test-page/reutilizables-test-page.component.html

@@ -754,6 +754,29 @@
     </div>
   </section>
 
+  <section
+    class="component-demo component-demo--ticket-selector card shadow-sm mt-4"
+    data-testid="ticket-selector-demo"
+  >
+    <div class="card-body">
+      <span class="eyebrow">Reusable Component</span>
+      <h2 class="mb-2">Selector de entradas (Ticket Selector Layout)</h2>
+      <p class="text-muted mb-4">
+        Demo de selección encadenada por tipo, sector, fila y asiento. Las combinaciones sin stock
+        no aparecen como disponibles.
+      </p>
+
+      <app-product-ticket-selector
+        [title]="testTicketSelectorProduct.title"
+        [description]="testTicketSelectorProduct.description"
+        [price]="testTicketSelectorProduct.price"
+        [imageUrl]="testTicketSelectorProduct.imageUrl"
+        [variants]="testTicketSelectorVariants"
+        (buy)="onTicketBuy($event)"
+      />
+    </div>
+  </section>
+
   <app-store-section title="PRODUCTOS" class="component-demo store-section-demo mt-5">
     <div class="row">
       @for (product of testProducts; track product.title) {

src/app/features/componentes-test/pages/reutilizables-test-page/reutilizables-test-page.component.scss

@@ -15,6 +15,10 @@
   border: 0;
 }
 
+.component-demo--ticket-selector {
+  width: min(100%, 76rem);
+}
+
 .store-section-demo {
   width: min(100%, 64rem);
 }

src/app/features/componentes-test/pages/reutilizables-test-page/reutilizables-test-page.component.ts

@@ -7,6 +7,7 @@ import { InputComponent } from '../../../../shared/components/input/input.compon
 import { PaginatorComponent } from '../../../../shared/components/paginator/paginator.component';
 import { ProductColumnWithImageComponent } from '../../../../shared/components/product-column-with-image/product-column-with-image.component';
 import { ProductRowCardComponent } from '../../../../shared/components/product-row-card/product-row-card.component';
+import { ProductTicketSelectorComponent } from '../../../../shared/components/product-ticket-selector/product-ticket-selector.component';
 import { ProductVerticalWithCartCardComponent } from '../../../../shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component';
 import { StoreSectionComponent } from '../../../../shared/components/store-section/store-section.component';
 import { ModalService } from '../../../../core/services/modal.service';
@@ -32,6 +33,11 @@ interface CarouselProductMock {
   imageUrl: string;
 }
 
+const ticketOption = (value: string, label: string = value): { value: string; label: string } => ({
+  value,
+  label,
+});
+
 @Component({
   selector: 'app-reutilizables-test-page',
   imports: [
@@ -41,6 +47,7 @@ interface CarouselProductMock {
     PaginatorComponent,
     ProductColumnWithImageComponent,
     ProductRowCardComponent,
+    ProductTicketSelectorComponent,
     ProductVerticalWithCartCardComponent,
     StoreSectionComponent,
     IconButtonComponent,
@@ -216,6 +223,134 @@ export class ReutilizablesTestPageComponent {
     price: 11500,
   };
 
+  protected readonly testTicketSelectorProduct = {
+    title: 'ENTRADAS DESFILE PURA TENDENCIA',
+    description: '',
+    price: 40000,
+    imageUrl: '/images/ticket-selector-entrada-pasarela.png',
+    variants: [
+      {
+        id: 1001,
+        precio: 250000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
+          sector: ticketOption('a', 'Sector A'),
+          fila: ticketOption('1', 'Fila 1'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1002,
+        precio: 250000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
+          sector: ticketOption('a', 'Sector A'),
+          fila: ticketOption('1', 'Fila 1'),
+          asiento: ticketOption('2', 'Asiento 2'),
+        },
+      },
+      {
+        id: 1003,
+        precio: 250000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
+          sector: ticketOption('c', 'Sector C'),
+          fila: ticketOption('1', 'Fila 1'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1004,
+        precio: 200000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
+          sector: ticketOption('a', 'Sector A'),
+          fila: ticketOption('2', 'Fila 2'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1005,
+        precio: 200000,
+        stock_tecnico: 0,
+        values: {
+          tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
+          sector: ticketOption('a', 'Sector A'),
+          fila: ticketOption('2', 'Fila 2'),
+          asiento: ticketOption('2', 'Asiento 2'),
+        },
+      },
+      {
+        id: 1006,
+        precio: 100000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('general', 'General'),
+          sector: ticketOption('b', 'Sector B'),
+          fila: ticketOption('3', 'Fila 3'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1007,
+        precio: 100000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('general', 'General'),
+          sector: ticketOption('b', 'Sector B'),
+          fila: ticketOption('3', 'Fila 3'),
+          asiento: ticketOption('2', 'Asiento 2'),
+        },
+      },
+      {
+        id: 1008,
+        precio: 90000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('general', 'General'),
+          sector: ticketOption('d', 'Sector D'),
+          fila: ticketOption('3', 'Fila 3'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1009,
+        precio: 65000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('general', 'General'),
+          sector: ticketOption('d', 'Sector D'),
+          fila: ticketOption('4', 'Fila 4'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+      {
+        id: 1010,
+        precio: 40000,
+        stock_tecnico: 1,
+        values: {
+          tipo: ticketOption('general', 'General'),
+          sector: ticketOption('d', 'Sector D'),
+          fila: ticketOption('5', 'Fila 5'),
+          asiento: ticketOption('1', 'Asiento 1'),
+        },
+      },
+    ],
+  };
+
+  protected readonly testTicketSelectorVariants = this.testTicketSelectorProduct.variants.map(
+    (variant) => ({
+      value: variant.id,
+      precio: variant.precio,
+      stock_tecnico: variant.stock_tecnico,
+      values: variant.values,
+    }),
+  );
+
   protected readonly cartMockItems: CartItemMock[] = [
     {
       imageUrl: null,
@@ -272,6 +407,12 @@ export class ReutilizablesTestPageComponent {
     alert(`Comprando: ${productTitle}`);
   }
 
+  protected onTicketBuy(variantIds: number[]): void {
+    this.toastService.success(
+      `Compra iniciada para ${variantIds.length} entrada/s: ${variantIds.join(', ')}.`,
+    );
+  }
+
   protected onFileChange(file: File | null): void {
     this.fileName = file?.name ?? '';
   }

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

@@ -10,7 +10,7 @@ import {
 } from '@angular/core';
 import { HttpErrorResponse } from '@angular/common/http';
 import { ActivatedRoute, Router } from '@angular/router';
-import { Subscription } from 'rxjs';
+import { firstValueFrom, Subscription } from 'rxjs';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
@@ -178,13 +178,23 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
 
     this.creatingDirectPurchase.set(true);
     try {
-      const purchase = await this.injector.get(CheckoutService).startCheckout(tenant.codigo, {
+      const checkoutService = this.injector.get(CheckoutService);
-        direct_item: {
+      const variantIds = event.variantIds ?? [];
-          catalog_item_id: event.product.id,
+      const purchase =
-          variant_id: event.variant ?? null,
+        variantIds.length > 1
-          cantidad: event.quantity,
+          ? await this.startTicketCheckout(
-        },
+              checkoutService,
-      });
+              tenant.codigo,
+              event.product.id,
+              variantIds,
+            )
+          : await checkoutService.startCheckout(tenant.codigo, {
+              direct_item: {
+                catalog_item_id: event.product.id,
+                variant_id: event.variant ?? null,
+                cantidad: event.quantity,
+              },
+            });
       await this.router.navigate(['/checkout'], { queryParams: { purchase: purchase.id } });
     } catch (error) {
       console.error('Failed to create direct purchase:', error);
@@ -194,6 +204,24 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
     }
   }
 
+  private async startTicketCheckout(
+    checkoutService: CheckoutService,
+    tenantCode: string,
+    catalogItemId: number,
+    variantIds: number[],
+  ) {
+    for (const variantId of variantIds) {
+      await firstValueFrom(this.cartService.addItem(catalogItemId, variantId, 1));
+    }
+
+    const cartId = this.cartService.cart()?.id;
+    if (cartId === null || cartId === undefined) {
+      throw new Error('No se pudo crear el carrito para las entradas seleccionadas.');
+    }
+
+    return checkoutService.startCheckout(tenantCode, { cart_id: cartId });
+  }
+
   protected onAddToCart(event: ProductListCartEvent): void {
     this.cartService.addItem(event.product.id, event.variant ?? null, event.quantity).subscribe({
       next: (response) => {

src/app/shared/components/product-list/product-list.component.html

@@ -27,6 +27,17 @@
           (addToCart)="emitColumnCart(item, $event)"
         />
       }
+      @case ('ticket_selector') {
+        <app-product-ticket-selector
+          [title]="item.nombre"
+          [description]="item.descripcion ?? ''"
+          [price]="price(item)"
+          [imageUrl]="loadImages() ? (item.image ?? null) : null"
+          [variants]="variantsFor(item)"
+          [disabled]="loading()"
+          (buy)="emitTicketBuy(item, $event)"
+        />
+      }
       @default {
         <app-product-column-with-image
           [imageUrl]="loadImages() ? (item.image ?? null) : null"
@@ -54,8 +65,11 @@
     class="product-list"
     [class.product-list--row]="effectiveLayout() === 'row'"
     [class.product-list--column]="effectiveLayout() !== 'row'"
-    [class.product-list--adaptive]="groupLayout() !== 'simple_vertical'"
+    [class.product-list--adaptive]="
+      groupLayout() !== 'simple_vertical' && groupLayout() !== 'single'
+    "
     [class.product-list--simple-vertical]="groupLayout() === 'simple_vertical'"
+    [class.product-list--single]="groupLayout() === 'single'"
   >
     @for (item of itemData(); track item.id; let index = $index) {
       <ng-container

src/app/shared/components/product-list/product-list.component.scss

@@ -27,6 +27,10 @@
     grid-template-columns: minmax(0, 1fr);
   }
 
+  &--single {
+    grid-template-columns: minmax(0, 1fr);
+  }
+
   &__item {
     width: 100%;
     min-width: 0;

src/app/shared/components/product-list/product-list.component.spec.ts

@@ -13,6 +13,7 @@ describe('ProductListComponent', () => {
   const items: ProductListItem[] = [
     {
       id: 1,
+      type: 'product',
       nombre: 'Producto uno',
       descripcion: 'Primera descripcion',
       precio: '100.00',
@@ -21,6 +22,7 @@ describe('ProductListComponent', () => {
     },
     {
       id: 2,
+      type: 'product',
       nombre: 'Producto dos',
       descripcion: 'Segunda descripcion',
       precio: 200,
@@ -216,6 +218,40 @@ describe('ProductListComponent', () => {
     expect(element.querySelectorAll('app-product-column-with-image')).toHaveLength(2);
   });
 
+  it('renders a single ticket selector and emits its selected variant', async () => {
+    const ticket: ProductListItem = {
+      ...items[0],
+      variants: [
+        {
+          id: 401,
+          precio: '10000.00',
+          stock_tecnico: 1,
+          values: { tipo: 'VIP', sector: 'A', fila: '3', asiento: '12' },
+        },
+      ],
+    };
+    const fixture = await render('ticket_selector', [ticket], 'single');
+    const buySpy = vi.fn();
+    fixture.componentInstance.buy.subscribe(buySpy);
+    await fixture.whenStable();
+    fixture.detectChanges();
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(element.querySelector('.product-list--single')).not.toBeNull();
+    expect(element.querySelectorAll('app-product-ticket-selector')).toHaveLength(1);
+    expect(element.querySelectorAll('.variant-selector__select')).toHaveLength(4);
+
+    (element.querySelector('.ticket-selector__actions .btn-primary') as HTMLButtonElement).click();
+
+    expect(buySpy).toHaveBeenCalledWith({
+      product: ticket,
+      quantity: 1,
+      variant: 401,
+      variantIds: [401],
+      directPurchase: true,
+    });
+  });
+
   it('renders carousel groups with the reusable carousel', async () => {
     const fixture = await render('column_with_image', items, 'carousel');
     const element = fixture.nativeElement as HTMLElement;

src/app/shared/components/product-list/product-list.component.ts

@@ -26,6 +26,7 @@ import {
   Variant as RowVariant,
 } from '../product-row-card/product-row-card.component';
 import { ProductVerticalWithCartCardComponent } from '../product-vertical-with-cart-card/product-vertical-with-cart-card.component';
+import { ProductTicketSelectorComponent } from '../product-ticket-selector/product-ticket-selector.component';
 
 export type ProductListLayout = CatalogProductLayout;
 export type ProductListVariant = CatalogFeaturedItemVariant;
@@ -41,6 +42,7 @@ export interface ProductListBuyEvent {
   product: ProductListItem;
   quantity: number;
   variant?: number | null;
+  variantIds?: number[];
   directPurchase: boolean;
 }
 
@@ -53,6 +55,7 @@ export interface ProductListBuyEvent {
     PaginatorComponent,
     ProductRowCardComponent,
     ProductVerticalWithCartCardComponent,
+    ProductTicketSelectorComponent,
   ],
   templateUrl: './product-list.component.html',
   styleUrl: './product-list.component.scss',
@@ -110,6 +113,7 @@ export class ProductListComponent {
       value: variant.id,
       descripcion: variant.descripcion,
       precio: variant.precio,
+      stock_tecnico: variant.stock_tecnico,
       values: variant.values,
     }));
   }
@@ -159,4 +163,14 @@ export class ProductListComponent {
   protected emitProductDetailBuy(product: ProductListItem): void {
     this.buy.emit({ product, quantity: 1, variant: null, directPurchase: false });
   }
+
+  protected emitTicketBuy(product: ProductListItem, variantIds: number[]): void {
+    this.buy.emit({
+      product,
+      quantity: variantIds.length,
+      variant: variantIds[0] ?? null,
+      variantIds,
+      directPurchase: true,
+    });
+  }
 }

src/app/shared/components/product-row-card/product-row-card.component.ts

@@ -10,6 +10,7 @@ export interface Variant extends VariantSelectorVariant {
   label?: string;
   descripcion?: string | null;
   precio?: string | number;
+  stock_tecnico?: number | null;
 }
 
 @Component({

src/app/shared/components/product-ticket-selector/product-ticket-selector.component.html

@@ -0,0 +1,66 @@
+<article class="ticket-selector">
+  <header class="ticket-selector__header">
+    <div>
+      <h3 class="ticket-selector__title">{{ title() }}</h3>
+      @if (description()) {
+        <p class="ticket-selector__description">{{ description() }}</p>
+      }
+    </div>
+    <span class="ticket-selector__price text-primary">
+      @if (priceRange().hasRange) {
+        de <strong>{{ priceRange().minimum }}</strong> a
+        <strong>{{ priceRange().maximum }}</strong>
+      } @else {
+        <strong>{{ priceRange().minimum }}</strong>
+      }
+    </span>
+  </header>
+
+  <div class="ticket-selector__selection">
+    <span class="ticket-selector__label">Seleccioná Entrada/s:</span>
+
+    <div class="ticket-selector__rows">
+      @for (row of rows(); track row.id) {
+        <div class="ticket-selector__row">
+          <app-variant-selector
+            class="ticket-selector__fields"
+            [variants]="variantsForRow(row.id)"
+            [disabled]="disabled()"
+            [selectedVariant]="row.variantId"
+            (selectedVariantChange)="updateRow(row.id, $event)"
+          />
+          <app-icon-button
+            variant="trash"
+            ariaLabel="Eliminar entrada"
+            [disabled]="disabled()"
+            (clicked)="removeRow(row.id)"
+          />
+        </div>
+      }
+    </div>
+
+    <app-button
+      hostClass="ticket-selector__add-row"
+      buttonClass="ticket-selector__add-row-button"
+      variant="secondary"
+      [disabled]="disabled() || !canAddRow()"
+      (click)="addRow()"
+    >
+      + Agregar entrada
+    </app-button>
+
+    @if (selectableVariants().length === 0) {
+      <p class="ticket-selector__empty">No hay entradas disponibles.</p>
+    }
+
+    <div class="ticket-selector__actions">
+      <app-button variant="primary" [disabled]="disabled() || !hasSelection()" (click)="onBuy()">
+        Comprar
+      </app-button>
+    </div>
+  </div>
+
+  @if (imageUrl(); as image) {
+    <img class="ticket-selector__map" [src]="image" [alt]="'Plano de ubicaciones de ' + title()" />
+  }
+</article>

src/app/shared/components/product-ticket-selector/product-ticket-selector.component.scss

@@ -0,0 +1,141 @@
+:host {
+  display: block;
+  width: 100%;
+}
+
+.ticket-selector {
+  width: 100%;
+
+  &__header {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 1rem;
+    padding-bottom: 1.25rem;
+    border-bottom: 1px solid var(--border-color);
+  }
+
+  &__title {
+    margin: 0;
+    color: #666;
+    font-size: 22px;
+    font-weight: 700;
+    letter-spacing: 0.4px;
+    text-transform: uppercase;
+  }
+
+  &__description {
+    margin: 0.35rem 0 0;
+    color: #777;
+    font-size: 13px;
+  }
+
+  &__price {
+    flex: 0 0 auto;
+    font-size: 16px;
+    font-weight: 400;
+
+    strong {
+      font-weight: 700;
+    }
+  }
+
+  &__selection {
+    padding-top: 1rem;
+  }
+
+  &__label {
+    display: block;
+    margin-bottom: 0.5rem;
+    color: #555;
+    font-size: 15px;
+    font-weight: 700;
+  }
+
+  &__rows {
+    display: grid;
+    gap: 0.5rem;
+  }
+
+  &__row {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto;
+    align-items: end;
+    gap: 0.5rem;
+  }
+
+  &__fields {
+    min-width: 0;
+
+    ::ng-deep .variant-selector {
+      display: grid;
+      grid-template-columns: repeat(4, minmax(120px, 1fr));
+      gap: 0.5rem;
+    }
+  }
+
+  &__add-row {
+    display: block;
+    width: 100%;
+    margin-top: 0.5rem;
+
+    ::ng-deep .ticket-selector__add-row-button {
+      width: 100%;
+    }
+  }
+
+  &__empty {
+    margin: 0;
+    color: #777;
+    font-size: 13px;
+  }
+
+  &__actions {
+    display: flex;
+    justify-content: flex-end;
+    gap: 0.75rem;
+    margin-top: 0.75rem;
+
+    app-button {
+      min-width: 170px;
+    }
+  }
+
+  &__map {
+    display: block;
+    width: min(100%, 720px);
+    max-height: 680px;
+    margin: 3rem auto 0;
+    object-fit: contain;
+  }
+}
+
+@media (max-width: 767.98px) {
+  .ticket-selector {
+    &__header {
+      flex-direction: column;
+    }
+
+    &__fields {
+      ::ng-deep .variant-selector {
+        grid-template-columns: 1fr;
+      }
+    }
+
+    &__actions {
+      flex-direction: column-reverse;
+
+      app-button {
+        width: 100%;
+
+        ::ng-deep .btn {
+          width: 100%;
+        }
+      }
+    }
+
+    &__map {
+      margin-top: 2rem;
+    }
+  }
+}

src/app/shared/components/product-ticket-selector/product-ticket-selector.component.ts

@@ -0,0 +1,112 @@
+import { ChangeDetectionStrategy, Component, computed, input, output, signal } from '@angular/core';
+
+import { ButtonComponent } from '../button/button.component';
+import { IconButtonComponent } from '../icon-button/icon-button.component';
+import {
+  VariantSelectorComponent,
+  VariantSelectorVariant,
+} from '../variant-selector/variant-selector.component';
+
+export interface TicketSelectorVariant extends VariantSelectorVariant {
+  precio?: string | number;
+  stock_tecnico?: number | null;
+}
+
+interface TicketSelectionRow {
+  id: number;
+  variantId: number | null;
+}
+
+@Component({
+  selector: 'app-product-ticket-selector',
+  imports: [ButtonComponent, IconButtonComponent, VariantSelectorComponent],
+  templateUrl: './product-ticket-selector.component.html',
+  styleUrl: './product-ticket-selector.component.scss',
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class ProductTicketSelectorComponent {
+  readonly title = input.required<string>();
+  readonly description = input<string>('');
+  readonly price = input<number>(0);
+  readonly imageUrl = input<string | null>(null);
+  readonly variants = input<TicketSelectorVariant[]>([]);
+  readonly disabled = input(false);
+
+  readonly buy = output<number[]>();
+
+  protected readonly rows = signal<TicketSelectionRow[]>([{ id: 1, variantId: null }]);
+  private nextRowId = 2;
+
+  protected readonly selectableVariants = computed<TicketSelectorVariant[]>(() =>
+    this.variants().filter((variant) => variant.stock_tecnico == null || variant.stock_tecnico > 0),
+  );
+  protected readonly hasSelection = computed(
+    () => this.rows().length > 0 && this.rows().every((row) => row.variantId !== null),
+  );
+  protected readonly canAddRow = computed(
+    () => this.rows().length < this.selectableVariants().length,
+  );
+  protected readonly priceRange = computed(() => {
+    const prices = this.variants()
+      .filter((variant) => variant.stock_tecnico == null || variant.stock_tecnico > 0)
+      .map((variant) => Number(variant.precio ?? this.price()))
+      .filter(Number.isFinite);
+
+    if (prices.length === 0) {
+      const price = this.formatCurrency(this.price());
+      return { minimum: price, maximum: price, hasRange: false };
+    }
+
+    const minimum = Math.min(...prices);
+    const maximum = Math.max(...prices);
+    return {
+      minimum: this.formatCurrency(minimum),
+      maximum: this.formatCurrency(maximum),
+      hasRange: minimum !== maximum,
+    };
+  });
+
+  protected onBuy(): void {
+    const variantIds = this.rows().flatMap((row) =>
+      row.variantId === null ? [] : [row.variantId],
+    );
+
+    if (variantIds.length === this.rows().length && variantIds.length > 0) {
+      this.buy.emit(variantIds);
+    }
+  }
+
+  protected addRow(): void {
+    if (!this.canAddRow()) return;
+    this.rows.update((rows) => [...rows, { id: this.nextRowId++, variantId: null }]);
+  }
+
+  protected removeRow(rowId: number): void {
+    this.rows.update((rows) => rows.filter((row) => row.id !== rowId));
+  }
+
+  protected updateRow(rowId: number, selectedVariant: unknown): void {
+    const variantId = typeof selectedVariant === 'number' ? selectedVariant : null;
+    this.rows.update((rows) => rows.map((row) => (row.id === rowId ? { ...row, variantId } : row)));
+  }
+
+  protected variantsForRow(rowId: number): VariantSelectorVariant[] {
+    const selectedByOtherRows = new Set(
+      this.rows()
+        .filter((row) => row.id !== rowId && row.variantId !== null)
+        .map((row) => row.variantId),
+    );
+
+    return this.selectableVariants().filter(
+      (variant) => !selectedByOtherRows.has(variant.value as number),
+    );
+  }
+
+  private formatCurrency(value: number): string {
+    return new Intl.NumberFormat('es-AR', {
+      style: 'currency',
+      currency: 'ARS',
+      maximumFractionDigits: 0,
+    }).format(value);
+  }
+}