claude refactor

lib/view/pages/files/filesUploadDialog.dart

@@ -65,6 +65,28 @@ class _FilesUploadDialogState extends State<FilesUploadDialog> {
     );
   }
 
+  void _showUploadError(String message) {
+    setState(() {
+      _isUploading = false;
+      _overallProgressValue = 0.0;
+      _infoText = '';
+    });
+    showDialog(
+      context: context,
+      builder: (BuildContext context) => AlertDialog(
+        title: const Text('Upload fehlgeschlagen'),
+        contentPadding: const EdgeInsets.all(10),
+        content: Text(message),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(),
+            child: const Text('Schließen', textAlign: TextAlign.center),
+          ),
+        ],
+      ),
+    );
+  }
+
   Future<void> uploadFiles({bool override = false}) async {
     setState(() {
       _isUploading = true;
@@ -74,16 +96,24 @@ class _FilesUploadDialogState extends State<FilesUploadDialog> {
       }
     });
 
-    var webdavClient = await WebdavApi.webdav;
+    final webdavClient = await WebdavApi.webdav;
 
     if (!override) {
-      var result = (await webdavClient.propfind(PathUri.parse(widget.remotePath))).responses;
+      List<dynamic> result;
+      try {
+        result = (await webdavClient.propfind(PathUri.parse(widget.remotePath))).responses;
+      } catch (e) {
+        if (!mounted) return;
+        _showUploadError('Verbindung fehlgeschlagen: $e');
+        return;
+      }
       var conflictingFiles = _uploadableFiles.where((file) {
         var fileName = file.fileName;
         return result.any((element) => Uri.decodeComponent(element.href!).endsWith('/$fileName'));
       }).toList();
 
       if(conflictingFiles.isNotEmpty) {
+        if (!mounted) return;
         bool replaceFiles = await showDialog(
           context: context,
           barrierDismissible: false,
@@ -157,17 +187,24 @@ class _FilesUploadDialogState extends State<FilesUploadDialog> {
         _infoText = '${_uploadableFiles.indexOf(file) + 1}/${_uploadableFiles.length}';
       });
 
-      var uploadTask = await webdavClient.putFile(
-        File(filePath),
-        FileStat.statSync(filePath),
-        PathUri.parse(fullRemotePath),
-        onProgress: (progress) {
-          setState(() {
-            file._uploadProgress = progress;
-            _overallProgressValue = ((progress + _uploadableFiles.indexOf(file)) / _uploadableFiles.length).toDouble();
-          });
-        },
-      );
+      final dynamic uploadTask;
+      try {
+        uploadTask = await webdavClient.putFile(
+          File(filePath),
+          FileStat.statSync(filePath),
+          PathUri.parse(fullRemotePath),
+          onProgress: (progress) {
+            setState(() {
+              file._uploadProgress = progress;
+              _overallProgressValue = ((progress + _uploadableFiles.indexOf(file)) / _uploadableFiles.length).toDouble();
+            });
+          },
+        );
+      } catch (e) {
+        if (!mounted) return;
+        _showUploadError('Upload fehlgeschlagen für "$fileName": $e');
+        return;
+      }
 
       if(uploadTask.statusCode < 200 || uploadTask.statusCode > 299) {
         setState(() {
@@ -175,6 +212,7 @@ class _FilesUploadDialogState extends State<FilesUploadDialog> {
           _overallProgressValue = 0.0;
           _infoText = '';
         });
+        if (!mounted) return;
         Navigator.of(context).pop();
         showHttpErrorCode(uploadTask.statusCode);
       } else {
@@ -187,6 +225,7 @@ class _FilesUploadDialogState extends State<FilesUploadDialog> {
       _overallProgressValue = 0.0;
       _infoText = '';
     });
+    if (!mounted) return;
     Navigator.of(context).pop();
     widget.onUploadFinished(uploadetFilePaths);
   }