feat(categories): add category retrieval and pagination for tenant-specific products

app/Domains/Catalog/Controllers/CatalogController.php

@@ -4,9 +4,11 @@ namespace App\Domains\Catalog\Controllers;
 
 use App\Domains\Catalog\Enums\GroupLayout;
 use App\Domains\Catalog\Models\CatalogItem;
+use App\Domains\Catalog\Models\Category;
 use App\Domains\Catalog\Models\FeaturedGroup;
 use App\Domains\Catalog\Models\FeaturedItem;
 use App\Domains\Catalog\Requests\CatalogItemDetailRequest;
+use App\Domains\Catalog\Requests\CategoryPageRequest;
 use App\Domains\Catalog\Requests\FeaturedGroupPageRequest;
 use App\Domains\Catalog\Requests\SearchCatalogItemsRequest;
 use App\Domains\Catalog\Requests\StoreCatalogItemRequest;
@@ -57,6 +59,32 @@ class CatalogController extends Controller
         );
     }
 
+    public function category(
+        CategoryPageRequest $request,
+        Tenant $tenant,
+        Category $category,
+        CatalogService $catalogService,
+    ): AnonymousResourceCollection {
+        abort_unless($category->tenant_code === $tenant->codigo, 404);
+
+        return CatalogSearchItemResource::collection(
+            $catalogService->categoryItems(
+                $tenant,
+                $category,
+                $tenant->search_items_per_page,
+                (int) $request->validated('page', 1),
+            )
+        )->additional([
+            'category' => [
+                'id' => $category->id,
+                'nombre' => $category->nombre,
+                'categoria_id' => $category->categoria_id,
+            ],
+            'layout' => $tenant->search_product_layout->value,
+            'group_layout' => $tenant->search_group_layout->value,
+        ]);
+    }
+
     public function featuredGroupItems(
         FeaturedGroupPageRequest $request,
         Tenant $tenant,

app/Domains/Catalog/Requests/CategoryPageRequest.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Domains\Catalog\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class CategoryPageRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /** @return array<string, list<string>> */
+    public function rules(): array
+    {
+        return [
+            'page' => ['sometimes', 'integer', 'min:1'],
+        ];
+    }
+}

app/Domains/Catalog/Services/CatalogService.php

@@ -7,6 +7,7 @@ use App\Domains\Attachable\Services\AttachmentService;
 use App\Domains\Catalog\Enums\CatalogItemType;
 use App\Domains\Catalog\Models\Attribute;
 use App\Domains\Catalog\Models\CatalogItem;
+use App\Domains\Catalog\Models\Category;
 use App\Domains\Catalog\Models\Inventory;
 use App\Domains\Catalog\Models\ItemAttribute;
 use App\Domains\Catalog\Models\Variant;
@@ -210,6 +211,29 @@ class CatalogService
         ]));
     }
 
+    /** @return LengthAwarePaginator<CatalogItem> */
+    public function categoryItems(
+        Tenant $tenant,
+        Category $category,
+        int $perPage,
+        int $page,
+    ): LengthAwarePaginator {
+        return CatalogItem::query()
+            ->where('tenant_code', $tenant->codigo)
+            ->where('category_id', $category->id)
+            ->with([
+                'attachments',
+                'inventory',
+                'variants.inventory',
+                'variants.attachments',
+                'variants.definitions.itemAttribute.attribute',
+                'bundleComponents.catalogItem',
+                'bundleComponents.variant.catalogItem',
+            ])
+            ->orderBy('nombre')
+            ->paginate(perPage: $perPage, pageName: 'page', page: $page);
+    }
+
     public function delete(CatalogItem $catalogItem): void
     {
         DB::transaction(function () use ($catalogItem): void {

app/Domains/Catalog/routes/api.php

@@ -9,6 +9,8 @@ Route::prefix('tenants/{tenant:codigo}')->group(function (): void {
         ->name('catalog.featured-groups.items.index');
     Route::get('catalog-items', [CatalogController::class, 'search'])
         ->name('catalog-items.index');
+    Route::get('categories/{category}', [CatalogController::class, 'category'])
+        ->name('categories.show');
     Route::get('catalog-items/{catalogItem}', [CatalogController::class, 'show']);
     Route::post('catalog-items', [CatalogController::class, 'store']);
 });

app/Domains/Tenant/Controllers/BootstrapTenantController.php

@@ -16,7 +16,14 @@ class BootstrapTenantController extends Controller
 
         return TenantResource::make(
             Tenant::query()
-                ->with(['headerLogo', 'footerLogo', 'mainCarouselImages', 'menues', 'socialMedia'])
+                ->with([
+                    'headerLogo',
+                    'footerLogo',
+                    'mainCarouselImages',
+                    'menues',
+                    'socialMedia',
+                    'categories' => fn ($query) => $query->orderBy('nombre'),
+                ])
                 ->where('dominio', $dominio)
                 ->firstOrFail()
         );

app/Domains/Tenant/Models/Tenant.php

@@ -6,6 +6,7 @@ use App\Domains\Attachable\Models\Attachment;
 use App\Domains\Catalog\Enums\GroupLayout;
 use App\Domains\Catalog\Enums\ProductLayout;
 use App\Domains\Catalog\Models\CatalogItem;
+use App\Domains\Catalog\Models\Category;
 use App\Domains\Menu\Models\Menu;
 use App\Domains\Menu\Models\TenantMenu;
 use Illuminate\Database\Eloquent\Attributes\Fillable;
@@ -109,6 +110,14 @@ class Tenant extends Model
         return $this->hasMany(CatalogItem::class, 'tenant_code', 'codigo');
     }
 
+    /**
+     * @return HasMany<Category, $this>
+     */
+    public function categories(): HasMany
+    {
+        return $this->hasMany(Category::class, 'tenant_code', 'codigo');
+    }
+
     /**
      * @return BelongsToMany<SocialMedia, $this>
      */

app/Domains/Tenant/Resources/TenantResource.php

@@ -2,6 +2,7 @@
 
 namespace App\Domains\Tenant\Resources;
 
+use App\Domains\Catalog\Models\Category;
 use App\Domains\Menu\Models\Menu;
 use App\Domains\Tenant\Models\Tenant;
 use Illuminate\Http\Request;
@@ -64,9 +65,43 @@ class TenantResource extends JsonResource
                 'menues',
                 fn () => $this->menuTree($this->menues)
             ),
+            'categories' => $this->whenLoaded(
+                'categories',
+                fn () => $this->categoryTree($this->categories)
+            ),
         ];
     }
 
+    /**
+     * @param  Collection<int, Category>  $categories
+     * @return Collection<int, array<string, mixed>>
+     */
+    private function categoryTree(Collection $categories): Collection
+    {
+        $categoryIds = $categories->pluck('id')->flip();
+        $childrenByParent = $categories
+            ->filter(fn (Category $category) => $category->categoria_id !== null
+                && $categoryIds->has($category->categoria_id))
+            ->groupBy('categoria_id');
+
+        $formatCategory = function (Category $category) use (&$formatCategory, $childrenByParent): array {
+            return [
+                'id' => $category->id,
+                'nombre' => $category->nombre,
+                'subcategories' => $childrenByParent
+                    ->get($category->id, collect())
+                    ->map($formatCategory)
+                    ->values(),
+            ];
+        };
+
+        return $categories
+            ->filter(fn (Category $category) => $category->categoria_id === null
+                || ! $categoryIds->has($category->categoria_id))
+            ->map($formatCategory)
+            ->values();
+    }
+
     /**
      * @param  Collection<int, Menu>  $menus
      * @return Collection<int, array<string, mixed>>