feat: refactor variant selection to use app-variant-selector for improved maintainability

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.html

@@ -21,18 +21,10 @@
         </div>
 
         <div class="product-vertical-with-cart-card__variant-selectors">
-          @for (selector of variantSelectors(); track selector.key) {
-            <select
-              class="form-select product-vertical-with-cart-card__variant-select"
-              [attr.aria-label]="selector.label"
-              [ngModel]="selectedValues()[selector.key]"
-              (ngModelChange)="onVariantValueChange(selector.key, $event)"
-            >
-              @for (option of selector.options; track option) {
-                <option [ngValue]="option">{{ option }}</option>
-              }
-            </select>
-          }
+          <app-variant-selector
+            [variants]="selectorVariants()"
+            [(selectedVariant)]="selectedVariant"
+          />
         </div>
       </div>
     }

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.scss

@@ -66,24 +66,22 @@
   }
 
   &__variant-selectors {
-    display: flex;
-    align-items: center;
     width: 100%;
-    gap: 8px;
   }
 
-  &__variant-select {
-    flex: 1 1 0;
-    min-width: 0;
-    height: 40px;
-    border-color: #d8d8d8;
-    color: #6f6f6f;
-    font-size: 12px;
+  &__variant-selectors app-variant-selector {
+    width: 100%;
+  }
 
-    &:focus {
-      border-color: var(--tenant-primary, #009933);
-      box-shadow: 0 0 0 0.2rem color-mix(in srgb, transparent 75%, var(--tenant-primary, #009933));
-    }
+  &__variant-selectors ::ng-deep .variant-selector {
+    flex-wrap: nowrap;
+    width: 100%;
+  }
+
+  &__variant-selectors ::ng-deep .variant-selector__select {
+    flex: 1 1 0;
+    width: 0;
+    min-width: 0;
   }
 
   &__price {

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts

@@ -131,7 +131,7 @@ describe('ProductVerticalWithCartCardComponent', () => {
     expect(summary?.querySelector('.product-vertical-with-cart-card__price')).not.toBeNull();
     expect(summary?.querySelector('app-quantity-selector')).not.toBeNull();
     expect(
-      selectors?.querySelectorAll('.product-vertical-with-cart-card__variant-select'),
+      selectors?.querySelectorAll('.variant-selector__select'),
     ).toHaveLength(1);
     expect(selectors?.querySelector('app-quantity-selector')).toBeNull();
   });
@@ -150,7 +150,7 @@ describe('ProductVerticalWithCartCardComponent', () => {
     expect(layout?.querySelector('.product-vertical-with-cart-card__summary')).not.toBeNull();
     expect(
       layout?.querySelectorAll(
-        '.product-vertical-with-cart-card__variant-selectors .product-vertical-with-cart-card__variant-select',
+        '.product-vertical-with-cart-card__variant-selectors .variant-selector__select',
       ),
     ).toHaveLength(2);
   });
@@ -166,7 +166,7 @@ describe('ProductVerticalWithCartCardComponent', () => {
     fixture.componentInstance.buy.subscribe(buySpy);
 
     const select = fixture.nativeElement.querySelector(
-      '.product-vertical-with-cart-card__variant-select',
+      '.variant-selector__select',
     ) as HTMLSelectElement;
     select.value = select.options[1].value;
     select.dispatchEvent(new Event('change'));
@@ -207,7 +207,7 @@ describe('ProductVerticalWithCartCardComponent', () => {
     ).toBe('$ 10.000');
 
     const select = element.querySelector(
-      '.product-vertical-with-cart-card__variant-select',
+      '.variant-selector__select',
     ) as HTMLSelectElement;
     select.value = select.options[1].value;
     select.dispatchEvent(new Event('change'));

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.ts

@@ -2,17 +2,17 @@ import {
   ChangeDetectionStrategy,
   Component,
   computed,
-  effect,
   input,
   model,
   output,
-  signal,
-  untracked,
 } from '@angular/core';
-import { FormsModule } from '@angular/forms';
 
 import { ButtonComponent } from '../button/button.component';
 import { QuantitySelectorComponent } from '../quantity-selector/quantity-selector.component';
+import {
+  VariantSelectorComponent,
+  VariantSelectorVariant,
+} from '../variant-selector/variant-selector.component';
 
 export interface VerticalCartVariant {
   id: number;
@@ -21,15 +21,9 @@ export interface VerticalCartVariant {
   values: Record<string, string>;
 }
 
-interface VariantSelector {
-  key: string;
-  label: string;
-  options: string[];
-}
-
 @Component({
   selector: 'app-product-vertical-with-cart-card',
-  imports: [ButtonComponent, FormsModule, QuantitySelectorComponent],
+  imports: [ButtonComponent, QuantitySelectorComponent, VariantSelectorComponent],
   templateUrl: './product-vertical-with-cart-card.component.html',
   styleUrl: './product-vertical-with-cart-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -46,8 +40,6 @@ export class ProductVerticalWithCartCardComponent {
   readonly buy = output<{ quantity: number; variant: number | null }>();
   readonly addToCart = output<{ quantity: number; variant: number | null }>();
 
-  protected readonly selectedValues = signal<Record<string, string>>({});
-
   protected readonly selectedVariantData = computed(() =>
     this.variants().find((variant) => variant.id === this.selectedVariant()),
   );
@@ -60,54 +52,10 @@ export class ProductVerticalWithCartCardComponent {
     return Number.isFinite(variantPrice) ? variantPrice : this.price();
   });
   protected readonly formattedPrice = computed(() => this.formatCurrency(this.effectivePrice()));
-  protected readonly variantSelectors = computed<VariantSelector[]>(() => {
-    const variants = this.variants();
-    const keys = Array.from(new Set(variants.flatMap((variant) => Object.keys(variant.values))));
-
-    return keys.map((key) => ({
-      key,
-      label: this.formatVariantLabel(key),
-      options: Array.from(
-        new Set(
-          variants
-            .map((variant) => variant.values[key])
-            .filter((value): value is string => Boolean(value)),
-        ),
-      ),
-    }));
-  });
-
-  protected readonly hasVariants = computed(() => this.variantSelectors().length > 0);
-
-  constructor() {
-    effect(() => {
-      const variants = this.variants();
-
-      untracked(() => {
-        if (variants.length === 0) {
-          this.selectedValues.set({});
-          this.selectedVariant.set(null);
-          return;
-        }
-
-        const selected =
-          variants.find((variant) => variant.id === this.selectedVariant()) ?? variants[0];
-        this.selectedValues.set({ ...selected.values });
-        this.selectedVariant.set(selected.id);
-      });
-    });
-  }
-
-  protected onVariantValueChange(key: string, value: string): void {
-    const values = { ...this.selectedValues(), [key]: value };
-    const selectors = this.variantSelectors();
-    const matchingVariant = this.variants().find((variant) =>
-      selectors.every((selector) => variant.values[selector.key] === values[selector.key]),
-    );
-
-    this.selectedValues.set(values);
-    this.selectedVariant.set(matchingVariant?.id ?? null);
-  }
+  protected readonly selectorVariants = computed<VariantSelectorVariant[]>(() =>
+    this.variants().map((variant) => ({ value: variant.id, values: variant.values })),
+  );
+  protected readonly hasVariants = computed(() => this.selectorVariants().length > 0);
 
   protected onAddToCart(): void {
     this.addToCart.emit({ quantity: this.quantity(), variant: this.selectedVariant() });
@@ -117,11 +65,6 @@ export class ProductVerticalWithCartCardComponent {
     this.buy.emit({ quantity: this.quantity(), variant: this.selectedVariant() });
   }
 
-  private formatVariantLabel(key: string): string {
-    const label = key.replace(/[_-]+/g, ' ');
-    return label.charAt(0).toUpperCase() + label.slice(1);
-  }
-
   private formatCurrency(value: number): string {
     const rounded = Math.round(value);
     const parts = rounded.toString().split('.');