new chatgpt module for api intergration

Modules/Helpdesk/Http/Controllers/TicketAttachmentStoreController.php

@@ -22,12 +22,9 @@ final class TicketAttachmentStoreController extends Controller
     {
         Gate::authorize('update', $ticket);
 
-        $maxUploadKilobytes = (int) config('helpdesk.max_upload_kb', 10240);
-        $allowedMimes = (array) config('helpdesk.allowed_mimes', ['jpg', 'jpeg', 'png', 'pdf', 'txt', 'log', 'zip']);
-
         $request->validate([
             'attachments' => ['required', 'array', 'min:1'],
-            'attachments.*' => ['required', 'file', 'max:' . $maxUploadKilobytes, 'mimes:' . implode(',', $allowedMimes)],
+            'attachments.*' => $this->attachmentFileRules(required: true),
         ]);
 
         $user = Auth::user();
@@ -43,4 +40,36 @@ final class TicketAttachmentStoreController extends Controller
             ->route('helpdesk.tickets.show', $ticket)
             ->with('ticket-attachments-added', count($uploadedFiles) . ' supporting file' . (count($uploadedFiles) === 1 ? '' : 's') . ' uploaded.');
     }
+
+    /**
+     * Return Helpdesk attachment validation rules without relying on a newly autoloaded support class.
+     *
+     * @param bool $required Whether at least one uploaded file is required.
+     * @return array<int, string>
+     */
+    private function attachmentFileRules(bool $required = false): array
+    {
+        return array_values(array_filter([
+            $required ? 'required' : null,
+            'file',
+            'max:' . (int) config('helpdesk.max_upload_kb', 10240),
+            'extensions:' . implode(',', $this->allowedAttachmentExtensions()),
+        ]));
+    }
+
+    /**
+     * Return lower-case Helpdesk attachment extensions.
+     *
+     * @return array<int, string>
+     */
+    private function allowedAttachmentExtensions(): array
+    {
+        return collect(config('helpdesk.allowed_extensions', config('helpdesk.allowed_mimes', [])))
+            ->filter(static fn (mixed $extension): bool => is_string($extension) && trim($extension) !== '')
+            ->map(static fn (string $extension): string => strtolower(ltrim(trim($extension), '.')))
+            ->unique()
+            ->values()
+            ->all();
+    }
+
 }