lichess-org · veloce · Jan 10, 2024 · Dec 30, 2023 · Dec 30, 2023 · Dec 30, 2023
diff --git a/lib/src/model/user/search_history.dart b/lib/src/model/user/search_history.dart
@@ -0,0 +1,59 @@
+import 'dart:convert';
+
+import 'package:fast_immutable_collections/fast_immutable_collections.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:lichess_mobile/src/db/shared_preferences.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'search_history.g.dart';
+part 'search_history.freezed.dart';
+
+@riverpod
+class SearchHistory extends _$SearchHistory {
+  static const prefKey = 'search.history';
+  static const maxHistory = 10;
+
+  @override
+  SearchHistoryState build() {
+    final prefs = ref.watch(sharedPreferencesProvider);
+    final stored = prefs.getString(prefKey);
+
+    return stored != null
+        ? SearchHistoryState.fromJson(
+            jsonDecode(stored) as Map<String, dynamic>,
+          )
+        : SearchHistoryState(history: IList());
+  }
+
+  Future<void> saveTerm(String term) async {
+    if (state.history.contains(term)) {
+      return;
+    }
+    final currentList = state.history.toList();
+    if (currentList.length >= maxHistory) {
+      currentList.removeLast();
+    }
+    currentList.insert(0, term);
+    final newState = SearchHistoryState(history: currentList.toIList());
+    final prefs = ref.read(sharedPreferencesProvider);
+    await prefs.setString(prefKey, jsonEncode(newState.toJson()));
+    state = newState;
+  }
+
+  Future<void> clear() async {
+    final newState = state.copyWith(history: IList());
+    final prefs = ref.read(sharedPreferencesProvider);
+    await prefs.setString(prefKey, jsonEncode(newState.toJson()));
+    state = newState;
+  }
+}
+
+@Freezed(fromJson: true, toJson: true)
+class SearchHistoryState with _$SearchHistoryState {
+  const factory SearchHistoryState({
+    required IList<String> history,
+  }) = _SearchHistoryState;
+
+  factory SearchHistoryState.fromJson(Map<String, dynamic> json) =>
+      _$SearchHistoryStateFromJson(json);
+}
diff --git a/lib/src/model/user/user.dart b/lib/src/model/user/user.dart
@@ -18,6 +18,7 @@ class LightUser with _$LightUser {
     String? title,
     String? flair,
     bool? isPatron,
+    bool? isOnline,
   }) = _LightUser;
 
   factory LightUser.fromJson(Map<String, dynamic> json) =>
@@ -41,6 +42,7 @@ extension LightUserExtension on Pick {
         title: requiredPick('title').asStringOrNull(),
         flair: requiredPick('flair').asStringOrNull(),
         isPatron: requiredPick('patron').asBoolOrNull(),
+        isOnline: requiredPick('online').asBoolOrNull(),
       );
     }
     throw PickException(

diff --git a/lib/src/model/user/user_repository.dart b/lib/src/model/user/user_repository.dart
@@ -107,9 +107,33 @@ class UserRepository {
       );
     });
   }
+
+  FutureResult<IList<LightUser>> autocompleteUser(String term) {
+    return apiClient
+        .get(
+          Uri.parse(
+            '$kLichessHost/api/player/autocomplete?term=$term&friend=1&object=1',
+          ),
+        )
+        .flatMap(
+          (response) => readJsonObjectFromResponse(
+            response,
+            mapper: _autocompleteFromJson,
+            logger: _log,
+          ),
+        );
+  }
 }
 
 // --
+IList<LightUser> _autocompleteFromJson(Map<String, dynamic> json) =>
+    _autocompleteFromPick(pick(json).required());
+
+IList<LightUser> _autocompleteFromPick(RequiredPick pick) {
+  return pick('result')
+      .asListOrThrow((userPick) => userPick.asLightUserOrThrow())
+      .toIList();
+}
 
 UserActivity _userActivityFromJson(Map<String, dynamic> json) =>
     _userActivityFromPick(pick(json).required());

diff --git a/lib/src/model/user/user_repository_providers.dart b/lib/src/model/user/user_repository_providers.dart
@@ -13,6 +13,8 @@ import 'user_repository.dart';
 
 part 'user_repository_providers.g.dart';
 
+const _kAutoCompleteDebounceTimer = Duration(milliseconds: 300);
+
 @Riverpod(keepAlive: true)
 UserRepository userRepository(UserRepositoryRef ref) {
   final apiClient = ref.watch(authClientProvider);
@@ -101,3 +103,21 @@ Future<Leaderboard> leaderboard(LeaderboardRef ref) async {
   }
   return result.asFuture;
 }
+
+@riverpod
+Future<IList<LightUser>> autoCompleteUser(
+  AutoCompleteUserRef ref,
+  String term,
+) async {
+  // debounce calls as user might be typing
+  var didDispose = false;
+  ref.onDispose(() => didDispose = true);
+  await Future<void>.delayed(_kAutoCompleteDebounceTimer);
+  if (didDispose) {
+    throw Exception('Cancelled');
+  }
+
+  final repo = ref.watch(userRepositoryProvider);
+  final result = await repo.autocompleteUser(term);
+  return result.asFuture;
+}
diff --git a/lib/src/view/home/home_tab_screen.dart b/lib/src/view/home/home_tab_screen.dart
@@ -21,6 +21,7 @@ import 'package:lichess_mobile/src/view/account/profile_screen.dart';
 import 'package:lichess_mobile/src/view/account/rating_pref_aware.dart';
 import 'package:lichess_mobile/src/view/auth/sign_in_widget.dart';
 import 'package:lichess_mobile/src/view/game/lobby_screen.dart';
+import 'package:lichess_mobile/src/view/home/search_screen.dart';
 import 'package:lichess_mobile/src/view/play/offline_correspondence_games_screen.dart';
 import 'package:lichess_mobile/src/view/play/ongoing_games_screen.dart';
 import 'package:lichess_mobile/src/view/play/play_screen.dart';
@@ -117,11 +118,12 @@ class _HomeScreenState extends ConsumerState<HomeTabScreen> with RouteAware {
                 },
               ),
         actions: [
+          const _SearchButton(),
+          const _SettingsButton(),
           if (session != null)
             const _RelationButton()
           else
             const SignInWidget(),
-          const _SettingsButton(),
         ],
       ),
       body: RefreshIndicator(
@@ -160,8 +162,9 @@ class _HomeScreenState extends ConsumerState<HomeTabScreen> with RouteAware {
               trailing: Row(
                 mainAxisSize: MainAxisSize.min,
                 children: [
-                  if (session != null) const _RelationButton(),
+                  const _SearchButton(),
                   const _SettingsButton(),
+                  if (session != null) const _RelationButton(),
                 ],
               ),
             ),
@@ -430,6 +433,25 @@ class _HomeBody extends ConsumerWidget {
   }
 }
 
+class _SearchButton extends StatelessWidget {
+  const _SearchButton();
+
+  @override
+  Widget build(BuildContext context) {
+    return AppBarIconButton(
+      icon: const Icon(Icons.search),
+      semanticsLabel: 'Search Lichess',
+      onPressed: () {
+        pushPlatformRoute(
+          context,
+          fullscreenDialog: true,
+          builder: (_) => const SearchScreen(),
+        );
+      },
+    );
+  }
+}
+
 class _SettingsButton extends StatelessWidget {
   const _SettingsButton();