feat: add discount management and PDF export for transmittals

- Create Discount model, migration, and Filament resource with relation to Client
- Add PDF export functionality for transmittals using DomPDF
- Include discount type selection in sales transactions
- Fix account filtering logic in expense resource
- Update export job to generate PDF instead of Excel

app/Jobs/ExportCompleteJob.php

@@ -2,6 +2,8 @@
 
 namespace App\Jobs;
 
+use App\Models\Transmittal;
+use Barryvdh\DomPDF\Facade\Pdf;
 use Filament\Notifications\Actions\Action as NotificationAction;
 use Filament\Notifications\Notification;
 use Illuminate\Contracts\Queue\ShouldQueue;
@@ -13,30 +15,37 @@ use Illuminate\Support\Facades\Storage;
 
 class ExportCompleteJob implements ShouldQueue
 {
+    use Dispatchable;
+    use InteractsWithQueue;
     use Queueable;
+    use SerializesModels;
 
-
-    /**
-     * Create a new job instance.
-     */
-    public function __construct(private $user)
+    public function __construct(private $user, private array $ids)
     {
     }
 
-    /**
-     * Execute the job.
-     */
     public function handle(): void
     {
-        Notification::make()->success()
+        $transmittals = Transmittal::query()
+            ->with(['client', 'branch', 'files.notes', 'files.remarks'])
+            ->whereIn('id', $this->ids)
+            ->get();
+
+        $pdf = Pdf::loadView('transmittal.export.transmittal-export-pdf', [
+            'transmittals' => $transmittals,
+        ]);
+
+        Storage::disk('public')->put('transmittal-export.pdf', $pdf->output());
+
+        Notification::make()
+            ->success()
             ->title('Export Completed')
             ->actions([
-                    NotificationAction::make('download_transmittal-export.xlsx')
-                        ->label('Download File')
-                        ->url(url: Storage::url('public/transmittal-export.xlsx') ,shouldOpenInNewTab: true)
-                        ->markAsRead(),
-                ]
-            )
+                NotificationAction::make('download_transmittal-export.pdf')
+                    ->label('Download File')
+                    ->url(Storage::url('transmittal-export.pdf'), true)
+                    ->markAsRead(),
+            ])
             ->sendToDatabase($this->user);
     }
 }