Event-Thumbnails: Vorschaubilder mit Auto-Resize und Typ-Logos

- Migration: thumbnail-Spalte in events-Tabelle
- Event-Model: imageUrl() liefert Custom-Thumbnail oder Standard-Logo
  je Event-Typ (Logo_Training.png, Logo_Heimspiel.png, etc.)
- Thumbnail-Upload neben Typ-Auswahl bei Erstellen/Bearbeiten
  mit Live-Vorschau und Entfernen-Button
- Automatische Skalierung auf max. FullHD (1920x1080) via GD
  und Speicherung als JPEG (Qualität 85)
- Event-Listen (App + Admin): Logo/Thumbnail links im Terminblock
- Übersetzungen in allen 6 Sprachen

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/Admin/EventController.php

@@ -99,6 +99,7 @@ class EventController extends Controller
         $event->updated_by = $request->user()->id;
         $event->save();
 
+        $this->handleThumbnail($request, $event);
         $this->createParticipantsForTeam($event);
         $this->syncAssignments($event, $request);
         $this->saveKnownLocation($validated, $request->input('location_name'));
@@ -172,6 +173,7 @@ class EventController extends Controller
             $event->syncParticipants($request->user()->id);
         }
 
+        $this->handleThumbnail($request, $event);
         $this->syncAssignments($event, $request);
         $this->saveKnownLocation($validated, $request->input('location_name'));
         $this->syncEventFiles($event, $request);
@@ -349,6 +351,7 @@ class EventController extends Controller
             'new_files.*' => ['file', 'max:10240', 'mimes:pdf,docx,xlsx,jpg,jpeg,png,gif,webp'],
             'new_file_categories' => ['nullable', 'array'],
             'new_file_categories.*' => ['integer', 'exists:file_categories,id'],
+            'thumbnail' => ['nullable', 'image', 'max:10240', 'mimes:jpg,jpeg,png,gif,webp'],
         ]);
 
         $validated = $request->validate([
@@ -666,4 +669,68 @@ class EventController extends Controller
 
         return count($dates);
     }
+
+    /**
+     * Thumbnail hochladen, auf max. 1920x1080 skalieren und als JPEG speichern.
+     */
+    private function handleThumbnail(Request $request, Event $event): void
+    {
+        // Thumbnail entfernen
+        if ($request->boolean('remove_thumbnail') && $event->thumbnail) {
+            Storage::disk('public')->delete('thumbnails/' . $event->thumbnail);
+            $event->thumbnail = null;
+            $event->save();
+            return;
+        }
+
+        if (!$request->hasFile('thumbnail')) {
+            return;
+        }
+
+        // Altes Thumbnail löschen
+        if ($event->thumbnail) {
+            Storage::disk('public')->delete('thumbnails/' . $event->thumbnail);
+        }
+
+        $uploadedFile = $request->file('thumbnail');
+        $storedName = Str::uuid() . '.jpg';
+
+        // Bild laden und auf max. FullHD skalieren
+        $imageData = file_get_contents($uploadedFile->getRealPath());
+        $source = @imagecreatefromstring($imageData);
+
+        if (!$source) {
+            return;
+        }
+
+        $origWidth = imagesx($source);
+        $origHeight = imagesy($source);
+        $maxWidth = 1920;
+        $maxHeight = 1080;
+
+        // Nur verkleinern, nicht vergrößern
+        if ($origWidth > $maxWidth || $origHeight > $maxHeight) {
+            $ratio = min($maxWidth / $origWidth, $maxHeight / $origHeight);
+            $newWidth = (int) round($origWidth * $ratio);
+            $newHeight = (int) round($origHeight * $ratio);
+
+            $resized = imagecreatetruecolor($newWidth, $newHeight);
+            imagecopyresampled($resized, $source, 0, 0, 0, 0, $newWidth, $newHeight, $origWidth, $origHeight);
+            imagedestroy($source);
+            $source = $resized;
+        }
+
+        // Verzeichnis sicherstellen
+        $dir = storage_path('app/public/thumbnails');
+        if (!is_dir($dir)) {
+            mkdir($dir, 0755, true);
+        }
+
+        // Als JPEG speichern (Qualität 85)
+        imagejpeg($source, $dir . '/' . $storedName, 85);
+        imagedestroy($source);
+
+        $event->thumbnail = $storedName;
+        $event->save();
+    }
 }

app/Models/Event.php

@@ -36,6 +36,7 @@ class Event extends Model
         'opponent',
         'score_home',
         'score_away',
+        'thumbnail',
     ];
 
     protected function casts(): array
@@ -300,6 +301,27 @@ class Event extends Model
         return $query->where('team_id', $teamId);
     }
 
+    /**
+     * URL zum Event-Bild: Custom-Thumbnail oder Standard-Logo nach Event-Typ.
+     */
+    public function imageUrl(): string
+    {
+        if ($this->thumbnail) {
+            return asset('storage/thumbnails/' . $this->thumbnail);
+        }
+
+        $map = [
+            'home_game' => 'Logo_Heimspiel.png',
+            'away_game' => 'Logo_Auswärtsspiel.png',
+            'training' => 'Logo_Training.png',
+            'tournament' => 'Logo_Turnier.png',
+            'meeting' => 'Logo_Besprechung.png',
+            'other' => 'Logo_Sonstiges.png',
+        ];
+
+        return asset('images/' . ($map[$this->type->value] ?? 'Logo_Sonstiges.png'));
+    }
+
     public function isPartOfSeries(): bool
     {
         return $this->event_series_id !== null;