check if the task is future or ongoing to send email and notification on deletion

app/Http/Controllers/TasksController.php

@@ -10,6 +10,7 @@ use App\Mail\VolunteerUnassignToTaskMail;
 use App\Models\Events;
 use App\Models\Task;
 use App\Models\User;
+use Carbon\Carbon;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Gate;
@@ -147,6 +148,7 @@ class TasksController extends Controller
 
             $participants = $task->users;
 
+            if (Carbon::now()->lessThanOrEqualTo($task->end)) {
                 foreach ($participants as $user) {
                     broadcast(new TaskParticipationCancelled(
                         $user->id,
@@ -163,6 +165,7 @@ class TasksController extends Controller
                     ];
                     Mail::to($user->email)->send(new TaskParticipationCancelledMail($data));
                 }
+            }
 
             $task->delete();