fix: remove broken stale request check and handle network errors in autocomplete

packages/smooth_app/lib/pages/input/smooth_autocomplete_text_field.dart

@@ -206,8 +206,6 @@ class _SmoothAutocompleteTextFieldState
       return _SearchResults.empty();
     }
 
-    final DateTime start = DateTime.now();
-
     if (_suggestions[search] != null) {
       return _suggestions[search]!;
     } else if (widget.manager == null ||
@@ -222,19 +220,16 @@ class _SmoothAutocompleteTextFieldState
       _suggestions[search] = _SearchResults(
         await widget.manager!.getSuggestions(search),
       );
-    } catch (_) {}
+    } catch (_) {
+      _setLoading(false);
+      return _SearchResults.empty();
+    }
 
     if (_suggestions[search]?.isEmpty ?? true && search == _searchInput) {
       _setLoading(false);
     }
 
-    if (_searchInput != search &&
-        start.difference(DateTime.now()).inSeconds > 5) {
-      // Ignore this request, it's too long and this is not even the current search
-      return _SearchResults.empty();
-    } else {
-      return _suggestions[search] ?? _SearchResults.empty();
-    }
+    return _suggestions[search] ?? _SearchResults.empty();
   }
 }
 

packages/smooth_app/pubspec.lock

@@ -273,10 +273,10 @@ packages:
     dependency: transitive
     description:
       name: characters
-      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.0"
+    version: "1.4.1"
   clock:
     dependency: transitive
     description:
@@ -1052,18 +1052,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
+      sha256: "12956d0ad8390bbcc63ca2e1469c0619946ccb52809807067a7020d57e647aa6"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.17"
+    version: "0.12.18"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.11.1"
+    version: "0.13.0"
   matomo_tracker:
     dependency: "direct main"
     description:
@@ -1679,10 +1679,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
+      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.7"
+    version: "0.7.9"
   torch_light:
     dependency: "direct main"
     description:

packages/smooth_app/test/pages/autocomplete_test.dart

@@ -0,0 +1,66 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:openfoodfacts/openfoodfacts.dart';
+
+/// Mock autocompleter that simulates slow/failing network
+class _MockAutocompleter implements Autocompleter {
+  _MockAutocompleter({this.delay = Duration.zero, this.shouldFail = false});
+
+  final Duration delay;
+  final bool shouldFail;
+  int callCount = 0;
+
+  @override
+  Future<List<String>> getSuggestions(String input) async {
+    callCount++;
+    await Future<void>.delayed(delay);
+    if (shouldFail) {
+      throw Exception('Network error');
+    }
+    return <String>['$input-result1', '$input-result2'];
+  }
+}
+
+void main() {
+  group('AutocompleteManager', () {
+    test('cache hit returns immediately without server call', () async {
+      final _MockAutocompleter mock = _MockAutocompleter();
+      final AutocompleteManager manager = AutocompleteManager(mock);
+
+      // First call hits server
+      final List<String> first = await manager.getSuggestions('bo');
+      expect(first, contains('bo-result1'));
+      expect(mock.callCount, 1);
+
+      // Second call should hit cache — no new server call
+      final List<String> second = await manager.getSuggestions('bo');
+      expect(second, contains('bo-result1'));
+      expect(mock.callCount, 1); // still 1 — cache served it
+    });
+
+    test('returns most recent cached result when out of order', () async {
+      final _MockAutocompleter slowMock = _MockAutocompleter(
+        delay: const Duration(milliseconds: 100),
+      );
+      final AutocompleteManager manager = AutocompleteManager(slowMock);
+
+      // Fire both requests simultaneously
+      final Future<List<String>> boFuture = manager.getSuggestions('bo');
+      final Future<List<String>> botFuture = manager.getSuggestions('bot');
+
+      final List<String> boResult = await boFuture;
+      final List<String> botResult = await botFuture;
+
+      // Both should have cached their own results
+      expect(boResult, isNotEmpty);
+      expect(botResult, isNotEmpty);
+    });
+
+    test('network failure throws exception', () async {
+      final _MockAutocompleter failMock = _MockAutocompleter(shouldFail: true);
+      final AutocompleteManager manager = AutocompleteManager(failMock);
+
+      // Should throw — smooth-app catch block must handle this
+      expect(() => manager.getSuggestions('bo'), throwsException);
+    });
+  });
+}