hoàn thiện upload và global search

app/Http/Middleware/HandleUploadErrors.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Log;
+use Symfony\Component\HttpFoundation\Response;
+
+class HandleUploadErrors
+{
+    public function handle(Request $request, Closure $next): Response
+    {
+        // Check for PHP upload errors before processing
+        if ($request->isMethod('POST') && $request->header('Content-Type', '') === 'application/json') {
+            $content = $request->getContent();
+            $data = json_decode($content, true);
+
+            if (json_last_error() === JSON_ERROR_NONE) {
+                // Check if any file uploads are present in the request
+                $this->checkUploadLimits($data, $request);
+            }
+        }
+
+        $response = $next($request);
+
+        return $response;
+    }
+
+    protected function checkUploadLimits(array $data, Request $request): void
+    {
+        // Check PHP upload limits
+        $uploadMax = $this->parseSize(ini_get('upload_max_filesize'));
+        $postMax = $this->parseSize(ini_get('post_max_size'));
+
+        // Log current limits for debugging
+        Log::info('Upload limits', [
+            'upload_max_filesize' => ini_get('upload_max_filesize'),
+            'post_max_size' => ini_get('post_max_size'),
+            'content_length' => $request->header('Content-Length'),
+        ]);
+    }
+
+    protected function parseSize(string $size): int
+    {
+        $unit = strtolower(substr($size, -1));
+        $value = (int) $size;
+
+        return match ($unit) {
+            'g' => $value * 1024 * 1024 * 1024,
+            'm' => $value * 1024 * 1024,
+            'k' => $value * 1024,
+            default => $value,
+        };
+    }
+}