feat: tambah database notifications dan widget activity log di dashboard

app/Observers/ActivityObserver.php

@@ -4,6 +4,7 @@ namespace App\Observers;
 
 use App\Models\Activity;
 use App\Models\ActivityLog;
+use App\Services\NotificationService;
 use Illuminate\Support\Facades\Auth;
 
 class ActivityObserver
@@ -36,6 +37,22 @@ class ActivityObserver
                 'model_id'    => $activity->id,
                 'description' => "Status kegiatan '{$activity->title}' diubah dari {$old} menjadi {$new}",
             ]);
+
+            if ($new === 'pending') {
+                NotificationService::toRole('ketua', 'Kegiatan Menunggu Persetujuan',
+                    "Kegiatan \"{$activity->title}\" diajukan untuk disetujui.", 'warning',
+                    route('filament.admin.resources.activities.edit', $activity));
+            }
+
+            if (in_array($new, ['approved', 'rejected'])) {
+                NotificationService::send(
+                    $activity->creator,
+                    $new === 'approved' ? 'Kegiatan Disetujui' : 'Kegiatan Ditolak',
+                    "Kegiatan \"{$activity->title}\" telah " . ($new === 'approved' ? 'disetujui.' : 'ditolak.'),
+                    $new === 'approved' ? 'success' : 'danger',
+                    route('filament.admin.resources.activities.edit', $activity)
+                );
+            }
         }
     }