implemented a comprehensive Nextcloud file sharing system with support for user, group, and public link shares with gating based on server-side permissions; added sharing management interfaces including a share sheet; updated the file list with visual badges for incoming shares and improved OCS API response handling.

lib/api/marianumcloud/autocomplete/autocomplete_api.dart

@@ -3,25 +3,39 @@ import 'dart:io';
 
 import 'package:http/http.dart' as http;
 
+import '../../../model/endpoint_data.dart';
+import '../../errors/server_exception.dart';
 import '../nextcloud_ocs.dart';
 import 'autocomplete_response.dart';
 
 class AutocompleteApi {
-  Future<AutocompleteResponse> find(String query) async {
-    final endpoint = NextcloudOcs.uri(
-      'core/autocomplete/get',
-      queryParameters: {
+  /// Searches sharees (users by default). Pass [shareTypes] to widen the search
+  /// — e.g. `[0, 1]` for both users and groups (0 = user, 1 = group).
+  Future<AutocompleteResponse> find(
+    String query, {
+    List<int> shareTypes = const [0],
+  }) async {
+    // NextcloudOcs.uri serialises every query value via `toString()`, which
+    // would turn the `shareTypes[]` list into `"[0, 1]"`. Build the Uri here so
+    // Dart encodes the list as repeated `shareTypes[]=0&shareTypes[]=1` params.
+    final endpoint = EndpointData().nextcloud();
+    final uri = Uri.https(
+      endpoint.domain,
+      '${endpoint.path}/ocs/v2.php/core/autocomplete/get',
+      {
+        'format': 'json',
         'search': query,
         'itemType': ' ',
         'itemId': ' ',
-        'shareTypes[]': ['0'],
+        'shareTypes[]': shareTypes.map((t) => t.toString()).toList(),
         'limit': '10',
       },
     );
-    final response = await http.get(endpoint, headers: NextcloudOcs.headers());
+    final response = await http.get(uri, headers: NextcloudOcs.headers());
     if (response.statusCode != HttpStatus.ok) {
-      throw Exception(
-        'Api call failed with ${response.statusCode}: ${response.body}',
+      throw ServerException(
+        statusCode: response.statusCode,
+        technicalDetails: 'core/autocomplete/get: ${response.body}',
       );
     }
     final decoded = jsonDecode(response.body) as Map<String, dynamic>;