Duplicate records as drafts, and preview them from the form

The copy keeps the content, stack and team, but is unpublished, out of any
review, and gets a title marked as a copy and a free slug. It replaces
Filament's replicate action, which left the copy without a slug and still
published. The same copy is available through the API.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -1156,9 +1156,18 @@ horas y **solo abre ese registro**. El `SITE_PREVIEW_TOKEN` compartido sigue
 funcionando, pero es un secreto único que hay que pegar en un curl; esto se
 puede mandar por chat sin dar acceso a todos los borradores del sitio.
 
-**Duplicar** — en páginas, proyectos, servicios y convocatorias. Copia todo
-menos el slug y las fechas, porque dos registros no pueden responder en la misma
-URL.
+**Duplicar** — en páginas, proyectos, servicios y convocatorias, en la tabla y
+en el formulario, y por API (`POST /api/v1/{tipo}/{id}/duplicate`). La copia es
+un **borrador**: mismo contenido, misma tecnología, mismo equipo con sus roles,
+pero sin publicar, fuera de cualquier revisión, con el título marcado
+«(copia)» en cada idioma y un slug libre (`hola-copia`, `hola-copia-2`…). Se
+abre en cuanto se crea. Antes la copia salía sin slug —un registro sin
+dirección, que la salud del sitio marcaba— y conservaba el estado: duplicar una
+página publicada daba otra «publicada» sin URL.
+
+**Vista previa en el formulario** — el mismo botón de vista previa está también
+arriba de la edición de páginas, proyectos, servicios y convocatorias: se mira
+en la web real sin salir de lo que se está escribiendo.
 
 **Búsqueda global** — los doce recursos, desde la barra de arriba.
 

app/Filament/Resources/Calls/CallResource.php

@@ -10,6 +10,7 @@ use App\Filament\Resources\Calls\Pages\CreateCall;
 use App\Filament\Resources\Calls\Pages\EditCall;
 use App\Filament\Resources\Calls\Pages\ListCalls;
 use App\Filament\Resources\Calls\RelationManagers\ApplicationsRelationManager;
+use App\Filament\Support\DuplicateAction;
 use App\Filament\Support\PreviewAction;
 use App\Filament\Support\TranslatableTabs;
 use App\Filament\Support\TranslatedOptionLabel;
@@ -20,7 +21,6 @@ use Filament\Actions\BulkActionGroup;
 use Filament\Actions\DeleteAction;
 use Filament\Actions\DeleteBulkAction;
 use Filament\Actions\EditAction;
-use Filament\Actions\ReplicateAction;
 use Filament\Forms\Components\DatePicker;
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\Textarea;
@@ -230,17 +230,9 @@ class CallResource extends Resource
                     ->preload(),
             ])
             ->recordActions([
-                // A near-copy is a real workflow: the third similar service,
-                // next year's call. The slug is cleared because two records
-                // cannot answer at the same URL.
-                ReplicateAction::make()
-                    ->label(__('panel.actions.duplicate'))
-                    ->icon('heroicon-o-document-duplicate')
-                    ->excludeAttributes(['slug', 'published_at', 'unpublish_at'])
-                    ->modalHeading(__('panel.actions.duplicate_heading'))
-                    ->successNotificationTitle(__('panel.actions.duplicated')),
 
                 PreviewAction::for('call'),
+                DuplicateAction::make(),
 
                 EditAction::make(),
                 DeleteAction::make(),

app/Filament/Resources/Calls/Pages/EditCall.php

@@ -6,6 +6,8 @@ namespace App\Filament\Resources\Calls\Pages;
 
 use App\Filament\Concerns\WarnsOfConcurrentEditing;
 use App\Filament\Resources\Calls\CallResource;
+use App\Filament\Support\DuplicateAction;
+use App\Filament\Support\PreviewAction;
 use Filament\Actions\DeleteAction;
 use Filament\Resources\Pages\EditRecord;
 
@@ -18,6 +20,9 @@ class EditCall extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            // Seeing it on the real site without leaving the form.
+            PreviewAction::for('call'),
+            DuplicateAction::make(),
             DeleteAction::make(),
         ];
     }

app/Filament/Resources/Pages/Pages/EditPage.php

@@ -7,6 +7,8 @@ namespace App\Filament\Resources\Pages\Pages;
 use App\Enums\PageStatus;
 use App\Filament\Concerns\WarnsOfConcurrentEditing;
 use App\Filament\Resources\Pages\PageResource;
+use App\Filament\Support\DuplicateAction;
+use App\Filament\Support\PreviewAction;
 use Filament\Actions\DeleteAction;
 use Filament\Actions\ForceDeleteAction;
 use Filament\Actions\RestoreAction;
@@ -21,6 +23,9 @@ class EditPage extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            // Seeing it on the real site without leaving the form.
+            PreviewAction::for('page'),
+            DuplicateAction::make(),
             DeleteAction::make(),
             ForceDeleteAction::make(),
             RestoreAction::make(),

app/Filament/Resources/Pages/Tables/PagesTable.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Filament\Resources\Pages\Tables;
 
 use App\Enums\PageStatus;
+use App\Filament\Support\DuplicateAction;
 use App\Filament\Support\PreviewAction;
 use App\Filament\Support\ReviewActions;
 use App\Filament\Support\ReviewStatusColumn;
@@ -20,7 +21,6 @@ use Filament\Actions\DeleteAction;
 use Filament\Actions\DeleteBulkAction;
 use Filament\Actions\EditAction;
 use Filament\Actions\ForceDeleteBulkAction;
-use Filament\Actions\ReplicateAction;
 use Filament\Actions\RestoreBulkAction;
 use Filament\Notifications\Notification;
 use Filament\Tables\Columns\IconColumn;
@@ -211,17 +211,8 @@ class PagesTable
                         && Auth::user()?->can('publish', $record))
                     ->action(fn (Page $record) => $record->update(['status' => PageStatus::Draft])),
 
-                // A near-copy is a real workflow: the third similar service,
-                // next year's call. The slug is cleared because two records
-                // cannot answer at the same URL.
-                ReplicateAction::make()
-                    ->label(__('panel.actions.duplicate'))
-                    ->icon('heroicon-o-document-duplicate')
-                    ->excludeAttributes(['slug', 'published_at', 'unpublish_at'])
-                    ->modalHeading(__('panel.actions.duplicate_heading'))
-                    ->successNotificationTitle(__('panel.actions.duplicated')),
-
                 PreviewAction::for('page'),
+                DuplicateAction::make(),
 
                 EditAction::make(),
                 DeleteAction::make(),

app/Filament/Resources/Projects/Pages/EditProject.php

@@ -6,6 +6,8 @@ namespace App\Filament\Resources\Projects\Pages;
 
 use App\Filament\Concerns\WarnsOfConcurrentEditing;
 use App\Filament\Resources\Projects\ProjectResource;
+use App\Filament\Support\DuplicateAction;
+use App\Filament\Support\PreviewAction;
 use Filament\Actions\DeleteAction;
 use Filament\Resources\Pages\EditRecord;
 
@@ -18,6 +20,9 @@ class EditProject extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            // Seeing it on the real site without leaving the form.
+            PreviewAction::for('project'),
+            DuplicateAction::make(),
             DeleteAction::make(),
         ];
     }

app/Filament/Resources/Projects/Tables/ProjectsTable.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Filament\Resources\Projects\Tables;
 
 use App\Enums\ProjectStatus;
+use App\Filament\Support\DuplicateAction;
 use App\Filament\Support\PreviewAction;
 use App\Filament\Support\ReviewActions;
 use App\Filament\Support\ReviewStatusColumn;
@@ -19,7 +20,6 @@ use Filament\Actions\DeleteAction;
 use Filament\Actions\DeleteBulkAction;
 use Filament\Actions\EditAction;
 use Filament\Actions\ForceDeleteBulkAction;
-use Filament\Actions\ReplicateAction;
 use Filament\Actions\RestoreBulkAction;
 use Filament\Notifications\Notification;
 use Filament\Tables\Columns\IconColumn;
@@ -197,17 +197,8 @@ class ProjectsTable
                         && Auth::user()?->can('publish', $record))
                     ->action(fn (Project $record) => $record->update(['published_at' => now()])),
 
-                // A near-copy is a real workflow: the third similar service,
-                // next year's call. The slug is cleared because two records
-                // cannot answer at the same URL.
-                ReplicateAction::make()
-                    ->label(__('panel.actions.duplicate'))
-                    ->icon('heroicon-o-document-duplicate')
-                    ->excludeAttributes(['slug', 'published_at', 'unpublish_at'])
-                    ->modalHeading(__('panel.actions.duplicate_heading'))
-                    ->successNotificationTitle(__('panel.actions.duplicated')),
-
                 PreviewAction::for('project'),
+                DuplicateAction::make(),
 
                 EditAction::make(),
                 DeleteAction::make(),

app/Filament/Resources/Services/Pages/EditService.php

@@ -6,6 +6,8 @@ namespace App\Filament\Resources\Services\Pages;
 
 use App\Filament\Concerns\WarnsOfConcurrentEditing;
 use App\Filament\Resources\Services\ServiceResource;
+use App\Filament\Support\DuplicateAction;
+use App\Filament\Support\PreviewAction;
 use Filament\Actions\DeleteAction;
 use Filament\Resources\Pages\EditRecord;
 
@@ -18,6 +20,9 @@ class EditService extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            // Seeing it on the real site without leaving the form.
+            PreviewAction::for('service'),
+            DuplicateAction::make(),
             DeleteAction::make(),
         ];
     }

app/Filament/Resources/Services/ServiceResource.php

@@ -9,6 +9,7 @@ use App\Filament\RelationManagers\RevisionsRelationManager;
 use App\Filament\Resources\Services\Pages\CreateService;
 use App\Filament\Resources\Services\Pages\EditService;
 use App\Filament\Resources\Services\Pages\ListServices;
+use App\Filament\Support\DuplicateAction;
 use App\Filament\Support\PreviewAction;
 use App\Filament\Support\ReviewActions;
 use App\Filament\Support\ReviewStatusColumn;
@@ -26,7 +27,6 @@ use Filament\Actions\DeleteAction;
 use Filament\Actions\DeleteBulkAction;
 use Filament\Actions\EditAction;
 use Filament\Actions\ForceDeleteBulkAction;
-use Filament\Actions\ReplicateAction;
 use Filament\Actions\RestoreBulkAction;
 use Filament\Forms\Components\DateTimePicker;
 use Filament\Forms\Components\Select;
@@ -323,17 +323,8 @@ class ServiceResource extends Resource
                 ReviewActions::request(),
                 ReviewActions::returnForChanges(),
 
-                // A near-copy is a real workflow: the third similar service,
-                // next year's call. The slug is cleared because two records
-                // cannot answer at the same URL.
-                ReplicateAction::make()
-                    ->label(__('panel.actions.duplicate'))
-                    ->icon('heroicon-o-document-duplicate')
-                    ->excludeAttributes(['slug', 'published_at', 'unpublish_at'])
-                    ->modalHeading(__('panel.actions.duplicate_heading'))
-                    ->successNotificationTitle(__('panel.actions.duplicated')),
-
                 PreviewAction::for('service'),
+                DuplicateAction::make(),
 
                 EditAction::make(),
                 DeleteAction::make(),

app/Filament/Support/DuplicateAction.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Filament\Support;
+
+use App\Support\Duplicator;
+use Filament\Actions\Action;
+use Filament\Notifications\Notification;
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * "Duplicate": a draft copy to start the next one from, opened straight away.
+ */
+final class DuplicateAction
+{
+    public static function make(): Action
+    {
+        return Action::make('duplicate')
+            ->label(__('panel.duplicate.label'))
+            ->icon('heroicon-o-document-duplicate')
+            ->color('gray')
+            ->requiresConfirmation()
+            ->modalHeading(__('panel.duplicate.heading'))
+            ->modalDescription(__('panel.duplicate.hint'))
+            ->authorize('create')
+            ->action(function (Model $record, $livewire): void {
+                $copy = Duplicator::duplicate($record);
+
+                Notification::make()
+                    ->title(__('panel.duplicate.done'))
+                    ->success()
+                    ->send();
+
+                $livewire->redirect($livewire::getResource()::getUrl('edit', ['record' => $copy]));
+            });
+    }
+}

app/Http/Controllers/Api/V1/DuplicateController.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api\V1;
+
+use App\Http\Controllers\Api\V1\Concerns\ResolvesContent;
+use App\Http\Controllers\Controller;
+use App\Support\ContentTypes;
+use App\Support\Duplicator;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+/**
+ * A draft copy of a page, project, service or call — the panel's "Duplicate".
+ */
+class DuplicateController extends Controller
+{
+    use ResolvesContent;
+
+    public function store(Request $request): JsonResponse
+    {
+        $record = $this->record($request);
+
+        $this->authorize('view', $record);
+        $this->authorize('create', $record::class);
+
+        $copy = Duplicator::duplicate($record);
+
+        return response()->json(['data' => [
+            'type' => $this->content($request),
+            'id' => $copy->getKey(),
+            'title' => ContentTypes::title($copy),
+            'slug' => (object) $copy->getTranslations('slug'),
+        ]], 201);
+    }
+}

app/Support/Duplicator.php

@@ -0,0 +1,121 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Support;
+
+use App\Enums\PageStatus;
+use App\Models\Call;
+use App\Models\Page;
+use App\Models\Project;
+use App\Models\Service;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\DB;
+use InvalidArgumentException;
+
+/**
+ * A copy of a record to start the next one from: same text, same stack, same
+ * team, but a draft — off the site, out of any review, and with a title and
+ * an address that say it is a copy.
+ */
+final class Duplicator
+{
+    /**
+     * @var array<class-string<Model>, array<int, string>>
+     */
+    public const RELATIONS = [
+        Page::class => [],
+        Project::class => ['technologies', 'services', 'members'],
+        Service::class => ['technologies', 'projects'],
+        Call::class => ['technologies'],
+    ];
+
+    /**
+     * Never copied: where it stands rather than what it says.
+     */
+    protected const RESET = [
+        'published_at', 'unpublish_at', 'review_requested_at', 'review_requested_by', 'reviewer_id',
+    ];
+
+    public static function supports(Model $record): bool
+    {
+        return array_key_exists($record::class, self::RELATIONS);
+    }
+
+    public static function duplicate(Model $record): Model
+    {
+        if (! self::supports($record)) {
+            throw new InvalidArgumentException($record::class.' cannot be duplicated.');
+        }
+
+        // Read again: a table row carries aggregates — view counts, summed
+        // stars — that are not columns and cannot be inserted.
+        $record = $record->fresh() ?? $record;
+
+        return DB::transaction(function () use ($record): Model {
+            $copy = $record->replicate(array_values(array_filter(
+                self::RESET,
+                fn (string $column) => array_key_exists($column, $record->getAttributes()),
+            )));
+
+            $titles = [];
+            $slugs = [];
+
+            foreach ((array) $record->getTranslations('title') as $locale => $title) {
+                if (filled($title)) {
+                    $titles[$locale] = $title.' '.__('panel.duplicate.title_suffix', [], $locale);
+                }
+            }
+
+            foreach ((array) $record->getTranslations('slug') as $locale => $slug) {
+                if (filled($slug)) {
+                    $slugs[$locale] = self::freeSlug($record, $locale, $slug.'-'.__('panel.duplicate.slug_suffix', [], $locale));
+                }
+            }
+
+            $copy->setTranslations('title', $titles);
+            $copy->setTranslations('slug', $slugs);
+
+            match (true) {
+                $copy instanceof Page => $copy->forceFill(['status' => PageStatus::Draft, 'author_id' => Auth::id() ?? $record->author_id]),
+                $copy instanceof Service => $copy->forceFill(['is_published' => false]),
+                default => null,
+            };
+
+            $copy->save();
+
+            foreach (self::RELATIONS[$record::class] as $relation) {
+                $related = $record->{$relation}()->get();
+
+                $copy->{$relation}()->sync(
+                    $relation === 'members'
+                        ? $related->mapWithKeys(fn ($member) => [$member->id => ['role' => $member->pivot->role]])->all()
+                        : $related->pluck('id')->all(),
+                );
+            }
+
+            return $copy;
+        });
+    }
+
+    /**
+     * The slug, or the slug with a number after it, whichever nobody has.
+     */
+    protected static function freeSlug(Model $record, string $locale, string $slug): string
+    {
+        $candidate = $slug;
+        $n = 2;
+        $query = fn (string $value) => $record::query()
+            ->when(method_exists($record, 'bootSoftDeletes'), fn ($q) => $q->withTrashed())
+            ->where("slug->{$locale}", $value)
+            ->exists();
+
+        while ($query($candidate)) {
+            $candidate = "{$slug}-{$n}";
+            $n++;
+        }
+
+        return $candidate;
+    }
+}

lang/ca/panel.php

@@ -144,6 +144,15 @@ return [
         'select_all' => 'Selecciona-ho tot',
     ],
 
+    'duplicate' => [
+        'label' => 'Duplicar',
+        'heading' => 'Duplicar com a esborrany',
+        'hint' => 'Es crea una còpia amb el mateix contingut, sense publicar i fora de qualsevol revisió, i s\'obre per editar-la.',
+        'done' => 'Còpia creada',
+        'title_suffix' => '(còpia)',
+        'slug_suffix' => 'copia',
+    ],
+
     'permissions' => [
         'groups' => [
             'general' => 'General',
@@ -182,12 +191,6 @@ return [
         ],
     ],
 
-    'actions' => [
-        'duplicate' => 'Duplicar',
-        'duplicate_heading' => 'Duplicar aquest registre',
-        'duplicated' => 'Duplicat. Posa-li un slug i una data abans de publicar-lo.',
-    ],
-
     'preview' => [
         'label' => 'Vista prèvia',
         'heading' => 'Enllaços de vista prèvia',

lang/en/panel.php

@@ -144,6 +144,15 @@ return [
         'select_all' => 'Select all',
     ],
 
+    'duplicate' => [
+        'label' => 'Duplicate',
+        'heading' => 'Duplicate as a draft',
+        'hint' => 'A copy with the same content is made, unpublished and out of any review, and opened for editing.',
+        'done' => 'Copy made',
+        'title_suffix' => '(copy)',
+        'slug_suffix' => 'copy',
+    ],
+
     'permissions' => [
         'groups' => [
             'general' => 'General',
@@ -182,12 +191,6 @@ return [
         ],
     ],
 
-    'actions' => [
-        'duplicate' => 'Duplicate',
-        'duplicate_heading' => 'Duplicate this record',
-        'duplicated' => 'Duplicated. Give it a slug and a date before publishing it.',
-    ],
-
     'preview' => [
         'label' => 'Preview',
         'heading' => 'Preview links',

lang/es/panel.php

@@ -144,6 +144,15 @@ return [
         'select_all' => 'Seleccionar todos',
     ],
 
+    'duplicate' => [
+        'label' => 'Duplicar',
+        'heading' => 'Duplicar como borrador',
+        'hint' => 'Se crea una copia con el mismo contenido, sin publicar y fuera de cualquier revisión, y se abre para editarla.',
+        'done' => 'Copia creada',
+        'title_suffix' => '(copia)',
+        'slug_suffix' => 'copia',
+    ],
+
     'permissions' => [
         'groups' => [
             'general' => 'General',
@@ -182,12 +191,6 @@ return [
         ],
     ],
 
-    'actions' => [
-        'duplicate' => 'Duplicar',
-        'duplicate_heading' => 'Duplicar este registro',
-        'duplicated' => 'Duplicado. Ponle un slug y una fecha antes de publicarlo.',
-    ],
-
     'preview' => [
         'label' => 'Vista previa',
         'heading' => 'Enlaces de vista previa',

public/openapi.yaml

@@ -4023,6 +4023,126 @@ paths:
               schema: { $ref: "#/components/schemas/AuditLogCollection" }
         "403": { $ref: "#/components/responses/Forbidden" }
 
+  /v1/pages/{page}/duplicate:
+    post:
+      tags: [Reviews]
+      summary: Duplicate a page as a draft
+      description: |
+        A copy to start the next one from: the same content and relations,
+        unpublished, out of any review, its title marked as a copy and a free
+        slug in each language.
+      parameters:
+        - name: page
+          in: path
+          required: true
+          schema: { type: integer }
+      responses:
+        "201":
+          description: The copy
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    type: object
+                    properties:
+                      type: { type: string }
+                      id: { type: integer }
+                      title: { type: string }
+                      slug: { type: object, additionalProperties: { type: string } }
+        "403": { $ref: "#/components/responses/Forbidden" }
+
+  /v1/projects/{project}/duplicate:
+    post:
+      tags: [Reviews]
+      summary: Duplicate a project as a draft
+      description: |
+        A copy to start the next one from: the same content and relations,
+        unpublished, out of any review, its title marked as a copy and a free
+        slug in each language.
+      parameters:
+        - name: project
+          in: path
+          required: true
+          schema: { type: integer }
+      responses:
+        "201":
+          description: The copy
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    type: object
+                    properties:
+                      type: { type: string }
+                      id: { type: integer }
+                      title: { type: string }
+                      slug: { type: object, additionalProperties: { type: string } }
+        "403": { $ref: "#/components/responses/Forbidden" }
+
+  /v1/services/{service}/duplicate:
+    post:
+      tags: [Reviews]
+      summary: Duplicate a service as a draft
+      description: |
+        A copy to start the next one from: the same content and relations,
+        unpublished, out of any review, its title marked as a copy and a free
+        slug in each language.
+      parameters:
+        - name: service
+          in: path
+          required: true
+          schema: { type: integer }
+      responses:
+        "201":
+          description: The copy
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    type: object
+                    properties:
+                      type: { type: string }
+                      id: { type: integer }
+                      title: { type: string }
+                      slug: { type: object, additionalProperties: { type: string } }
+        "403": { $ref: "#/components/responses/Forbidden" }
+
+  /v1/calls/{call}/duplicate:
+    post:
+      tags: [Reviews]
+      summary: Duplicate a call as a draft
+      description: |
+        A copy to start the next one from: the same content and relations,
+        unpublished, out of any review, its title marked as a copy and a free
+        slug in each language.
+      parameters:
+        - name: call
+          in: path
+          required: true
+          schema: { type: integer }
+      responses:
+        "201":
+          description: The copy
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    type: object
+                    properties:
+                      type: { type: string }
+                      id: { type: integer }
+                      title: { type: string }
+                      slug: { type: object, additionalProperties: { type: string } }
+        "403": { $ref: "#/components/responses/Forbidden" }
+
   /v1/media:
     get:
       tags: [Media]

routes/api.php

@@ -18,6 +18,7 @@ use App\Http\Controllers\Api\V1\BatchController;
 use App\Http\Controllers\Api\V1\CallController;
 use App\Http\Controllers\Api\V1\CategoryController;
 use App\Http\Controllers\Api\V1\ClientController;
+use App\Http\Controllers\Api\V1\DuplicateController;
 use App\Http\Controllers\Api\V1\HealthController;
 use App\Http\Controllers\Api\V1\MaintenanceController;
 use App\Http\Controllers\Api\V1\MeController;
@@ -298,6 +299,10 @@ Route::prefix('v1')->name('api.v1.')->group(function () {
             Route::post("{$resource}/{{$parameter}}/preview", [PreviewController::class, 'store'])
                 ->defaults('content', $resource)
                 ->name("{$resource}.preview");
+
+            Route::post("{$resource}/{{$parameter}}/duplicate", [DuplicateController::class, 'store'])
+                ->defaults('content', $resource)
+                ->name("{$resource}.duplicate");
         }
 
         // The library. A file is uploaded here and then referenced from a

tests/Feature/Panel/DuplicateTest.php

@@ -0,0 +1,98 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature\Panel;
+
+use App\Enums\PageStatus;
+use App\Filament\Resources\Pages\Pages\EditPage;
+use App\Filament\Resources\Projects\Pages\ListProjects;
+use App\Models\Member;
+use App\Models\Page;
+use App\Models\Project;
+use App\Models\Technology;
+use Database\Seeders\RolePermissionSeeder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Queue;
+use Livewire\Livewire;
+use PHPUnit\Framework\Attributes\Test;
+use Tests\FakesPireon;
+use Tests\TestCase;
+
+/**
+ * Duplicating: a draft copy to start the next record from, from the panel or
+ * the API.
+ */
+class DuplicateTest extends TestCase
+{
+    use FakesPireon, RefreshDatabase;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->seed(RolePermissionSeeder::class);
+        Queue::fake();
+    }
+
+    #[Test]
+    public function a_published_page_is_copied_as_a_draft_with_a_free_slug(): void
+    {
+        $this->actingAs($editor = $this->userWithRoles('editor'));
+
+        $page = Page::factory()->published()->create([
+            'title' => ['es' => 'Hola', 'en' => 'Hello'],
+            'slug' => ['es' => 'hola', 'en' => 'hello'],
+        ]);
+        Page::factory()->draft()->create(['slug' => ['es' => 'hola-copia']]);
+
+        Livewire::test(EditPage::class, ['record' => $page->getRouteKey()])
+            ->callAction('duplicate')
+            ->assertHasNoActionErrors();
+
+        $copy = Page::query()->latest('id')->first();
+
+        $this->assertSame(PageStatus::Draft, $copy->status);
+        $this->assertNull($copy->published_at);
+        $this->assertSame('Hola (copia)', $copy->getTranslation('title', 'es'));
+        $this->assertSame('Hello (copy)', $copy->getTranslation('title', 'en'));
+        $this->assertSame('hola-copia-2', $copy->getTranslation('slug', 'es'));
+        $this->assertSame($editor->id, $copy->author_id);
+        $this->assertSame($page->body, $copy->body);
+    }
+
+    #[Test]
+    public function a_project_keeps_its_stack_and_team(): void
+    {
+        $this->actingAs($this->userWithRoles('editor'));
+
+        $project = Project::factory()->published()->create();
+        $project->technologies()->attach(Technology::factory()->create());
+        $project->members()->attach(Member::factory()->create(), ['role' => 'Responsable']);
+
+        Livewire::test(ListProjects::class)->callTableAction('duplicate', $project);
+
+        $copy = Project::query()->latest('id')->first();
+
+        $this->assertNotSame($project->id, $copy->id);
+        $this->assertNull($copy->published_at);
+        $this->assertCount(1, $copy->technologies);
+        $this->assertSame('Responsable', $copy->members()->first()->pivot->role);
+    }
+
+    #[Test]
+    public function the_api_duplicates_too_and_only_for_who_may_create(): void
+    {
+        $page = Page::factory()->create();
+
+        $this->withHeaders($this->apiHeadersFor($this->userWithRoles('viewer')));
+        $this->postJson("/api/v1/pages/{$page->id}/duplicate")->assertForbidden();
+
+        $this->withHeaders($this->apiHeadersFor($this->userWithRoles('editor')));
+        $this->postJson("/api/v1/pages/{$page->id}/duplicate")
+            ->assertCreated()
+            ->assertJsonPath('data.type', 'pages');
+
+        $this->assertSame(2, Page::query()->count());
+    }
+}