Add all files

app/Admin/Resources/FailedJobResource/Pages/ListFailedJobs.php

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+<?php
+
+namespace App\Admin\Resources\FailedJobResource\Pages;
+
+use App\Admin\Resources\FailedJobResource;
+use Filament\Actions;
+use Filament\Notifications\Actions\Action;
+use Filament\Notifications\Notification;
+use Filament\Resources\Pages\ListRecords;
+use Illuminate\Support\Facades\DB;
+
+class ListFailedJobs extends ListRecords
+{
+    protected static string $resource = FailedJobResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\CreateAction::make(),
+        ];
+    }
+
+    // Check if jobs table is empty, if not send a notification
+    public function mount(): void
+    {
+        // Check if first job its available_at is at least 5 minutes ago
+        if (DB::table('jobs')->count() > 0) {
+            $firstJob = DB::table('jobs')->orderBy('available_at', 'asc')->first();
+            $firstJobAvailableAt = \Carbon\Carbon::parse($firstJob->available_at);
+            $now = \Carbon\Carbon::now();
+            $diffInMinutes = $firstJobAvailableAt->diffInMinutes($now);
+            if ($diffInMinutes > 5) {
+                Notification::make()
+                    ->title('Whoops!')
+                    ->body('There are ' . DB::table('jobs')->count() . " jobs in the queue.\nThis could mean that your jobs are not being processed correctly.")
+                    ->danger()
+                    ->actions([
+                        Action::make('view')
+                            ->label('Browse Documentation')
+                            ->button()
+                            ->url('https://paymenter.org/docs/installation/install#creating-cronjob-and-service', shouldOpenInNewTab: true),
+                    ])
+                    ->send();
+            }
+        }
+
+        parent::mount();
+    }
+}