first commit

app/Http/Controllers/PreviewController.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\DocumentVersion;
+use Illuminate\Http\Request;
+
+class PreviewController extends Controller
+{
+    public function show(DocumentVersion $version)
+    {
+        $filePath = storage_path("app/{$version->file_path}");
+        
+        return match($version->mime_type) {
+            'application/pdf' => response()->file($filePath),
+            'image/*' => response()->file($filePath),
+            default => response()->file(
+                $this->convertToPdf($filePath)
+            )
+        };
+    }
+    
+    private function convertToPdf($filePath)
+    {
+        // Usar OnlyOffice o LibreOffice para conversión
+    }
+}