feat(slides): add sort_order column, bulk delete, and reorder endpoints

Add sort_order to slides table with migration and model fillable.
Add destroyBulk() for batch soft-delete by type/service_id and
reorder() for drag-and-drop slide ordering. Auto-assign sort_order
on image and zip uploads.

app/Http/Controllers/SlideController.php

@@ -76,6 +76,50 @@ public function destroy(Slide $slide): JsonResponse
         ]);
     }
 
+    public function destroyBulk(Request $request): JsonResponse
+    {
+        $validated = $request->validate([
+            'type' => ['required', Rule::in(['information', 'moderation', 'sermon'])],
+            'service_id' => ['nullable', 'exists:services,id'],
+        ]);
+
+        $query = Slide::where('type', $validated['type']);
+
+        if ($validated['service_id']) {
+            $query->where('service_id', $validated['service_id']);
+        } else {
+            // Information slides without service_id (global)
+            $query->whereNull('service_id');
+        }
+
+        $count = $query->count();
+        $query->delete(); // soft-delete via SoftDeletes trait
+
+        return response()->json([
+            'success' => true,
+            'message' => $count.' Folien wurden gelöscht.',
+            'count' => $count,
+        ]);
+    }
+
+    public function reorder(Request $request): JsonResponse
+    {
+        $validated = $request->validate([
+            'slides' => ['required', 'array', 'min:1'],
+            'slides.*.id' => ['required', 'integer', 'exists:slides,id'],
+            'slides.*.sort_order' => ['required', 'integer', 'min:0'],
+        ]);
+
+        foreach ($validated['slides'] as $item) {
+            Slide::where('id', $item['id'])->update(['sort_order' => $item['sort_order']]);
+        }
+
+        return response()->json([
+            'success' => true,
+            'message' => 'Reihenfolge wurde aktualisiert.',
+        ]);
+    }
+
     public function updateExpireDate(Request $request, Slide $slide): JsonResponse
     {
         if ($slide->type !== 'information') {
@@ -97,6 +141,13 @@ public function updateExpireDate(Request $request, Slide $slide): JsonResponse
         ]);
     }
 
+    private function nextSortOrder(string $type, ?int $serviceId): int
+    {
+        return (int) Slide::where('type', $type)
+            ->when($serviceId, fn ($q) => $q->where('service_id', $serviceId), fn ($q) => $q->whereNull('service_id'))
+            ->max('sort_order') + 1;
+    }
+
     private function handleImage(
         UploadedFile $file,
         FileConversionService $conversionService,
@@ -117,6 +168,7 @@ private function handleImage(
                 'expire_date' => $expireDate,
                 'uploader_name' => $uploaderName,
                 'uploaded_at' => now(),
+                'sort_order' => $this->nextSortOrder($type, $serviceId),
             ]);
 
             return response()->json([
@@ -179,6 +231,8 @@ private function handleZip(
             $results = $conversionService->processZip($file);
             $slides = [];
 
+            $sortOrder = $this->nextSortOrder($type, $serviceId);
+
             foreach ($results as $result) {
                 // Skip PPT job results (they are handled asynchronously)
                 if (isset($result['job_id'])) {
@@ -194,6 +248,7 @@ private function handleZip(
                     'expire_date' => $expireDate,
                     'uploader_name' => $uploaderName,
                     'uploaded_at' => now(),
+                    'sort_order' => $sortOrder++,
                 ]);
             }
 

app/Models/Slide.php

@@ -21,6 +21,7 @@ class Slide extends Model
         'expire_date',
         'uploader_name',
         'uploaded_at',
+        'sort_order',
     ];
 
     protected function casts(): array

database/migrations/2026_03_02_140000_add_sort_order_to_slides_table.php

@@ -0,0 +1,22 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('slides', function (Blueprint $table) {
+            $table->unsignedInteger('sort_order')->default(0)->after('uploaded_at');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('slides', function (Blueprint $table) {
+            $table->dropColumn('sort_order');
+        });
+    }
+};