refactor config manager

flutter/lib/main.dart

@@ -66,6 +66,7 @@ Future<void> launchUi() async {
         ChangeNotifierProvider.value(value: store),
         Provider.value(value: FirebaseManager.instance),
         Provider.value(value: boardDecoder),
+        Provider.value(value: benchmarkState.configManager),
       ],
       child: const MyApp(home: MyHomePage()),
     ),

flutter/lib/ui/root/resource_error_screen.dart

@@ -5,7 +5,7 @@ import 'package:provider/provider.dart';
 import 'package:mlperfbench/app_constants.dart';
 import 'package:mlperfbench/benchmark/state.dart';
 import 'package:mlperfbench/localizations/app_localizations.dart';
-import 'package:mlperfbench/store.dart';
+import 'package:mlperfbench/resources/config_manager.dart';
 import 'package:mlperfbench/ui/error_dialog.dart';
 import 'package:mlperfbench/ui/icons.dart' show AppIcons;
 import 'package:mlperfbench/ui/page_constraints.dart';
@@ -18,7 +18,10 @@ class ResourceErrorScreen extends StatelessWidget {
   Widget build(BuildContext context) {
     final stringResources = AppLocalizations.of(context);
     final state = context.watch<BenchmarkState>();
-    final store = context.watch<Store>();
+    final configManager = context.watch<ConfigManager>();
+
+    final error =
+        context.select<BenchmarkState, Object?>((value) => value.error);
 
     final iconEdgeSize = MediaQuery.of(context).size.width * 0.66;
 
@@ -46,7 +49,7 @@ class ResourceErrorScreen extends StatelessWidget {
                   child: Column(
                     children: [
                       Text(
-                        'Error: ${state.error}\n',
+                        'Error: $error\n',
                         textAlign: TextAlign.center,
                         style: const TextStyle(
                           fontSize: 15,
@@ -62,7 +65,7 @@ class ResourceErrorScreen extends StatelessWidget {
                         ),
                       ),
                       Text(
-                        '${stringResources.resourceErrorCurrentConfig} ${state.configManager.currentConfigFilePath}',
+                        '${stringResources.resourceErrorCurrentConfig} ${configManager.currentConfigFilePath}',
                         textAlign: TextAlign.center,
                         style: const TextStyle(
                           fontSize: 15,
@@ -90,9 +93,8 @@ class ResourceErrorScreen extends StatelessWidget {
                       TextButton(
                         onPressed: () async {
                           try {
-                            await state.configManager
-                                .setConfig(name: store.chosenConfigurationName);
-                            state.deferredLoadResources();
+                            await configManager.setConfig(
+                                name: configManager.currentConfigName);
                           } catch (e, trace) {
                             print("can't change task config: $e");
                             print(trace);

flutter/lib/ui/run/result_screen.dart

@@ -309,7 +309,9 @@ class _ResultScreenState extends State<ResultScreen>
   @override
   Widget build(BuildContext context) {
     final state = context.watch<BenchmarkState>();
-    final store = context.watch<Store>();
+    final shareEnabled = context.select<Store, bool>((value) => value.share);
+    final offlineMode =
+        context.select<Store, bool>((value) => value.offlineMode);
     final stringResources = AppLocalizations.of(context);
     final scrollController = ScrollController();
 
@@ -401,7 +403,7 @@ class _ResultScreenState extends State<ResultScreen>
                 await showErrorDialog(context, [wrongPathError]);
                 return;
               }
-              if (store.offlineMode) {
+              if (offlineMode) {
                 final offlineError = await state.validator.validateOfflineMode(
                     stringResources.dialogContentOfflineWarning);
                 if (offlineError.isNotEmpty) {
@@ -438,7 +440,7 @@ class _ResultScreenState extends State<ResultScreen>
               ),
             ),
           )),
-      store.share
+      shareEnabled
           ? Padding(
               padding: const EdgeInsets.fromLTRB(10, 10, 10, 10),
               child: TextButton(
@@ -460,7 +462,7 @@ class _ResultScreenState extends State<ResultScreen>
               ),
             )
           : Container(),
-      store.share && fm != null
+      shareEnabled && fm != null
           ? Padding(
               padding: const EdgeInsets.fromLTRB(10, 10, 10, 10),
               child: TextButton(

flutter/lib/ui/settings/task_config_screen.dart

@@ -6,7 +6,6 @@ import 'package:file_picker/file_picker.dart';
 import 'package:provider/provider.dart';
 
 import 'package:mlperfbench/app_constants.dart';
-import 'package:mlperfbench/benchmark/state.dart';
 import 'package:mlperfbench/localizations/app_localizations.dart';
 import 'package:mlperfbench/resources/config_manager.dart';
 import 'package:mlperfbench/store.dart';
@@ -166,7 +165,7 @@ class TaskConfigScreen extends StatelessWidget {
     String chosenConfigName,
   ) {
     final stringResources = AppLocalizations.of(context);
-    final state = context.watch<BenchmarkState>();
+    final configManager = context.watch<ConfigManager>();
     final wasChosen = chosenConfigName == configuration.name;
 
     return Card(
@@ -180,7 +179,7 @@ class TaskConfigScreen extends StatelessWidget {
         trailing: Text(configuration.getType(stringResources)),
         onTap: () async {
           try {
-            await state.configManager.setConfig(name: configuration.name);
+            await configManager.setConfig(name: configuration.name);
             // TODO (anhappdev): Uncomment the if line and remove the ignore line, when updated to Flutter v3.4.
             // See https://github.com/flutter/flutter/issues/111488
             // if (!context.mounted) return;
@@ -229,10 +228,9 @@ class TaskConfigScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final l10n = AppLocalizations.of(context);
-    final store = context.watch<Store>();
-    final state = context.watch<BenchmarkState>();
+    final configManager = context.watch<ConfigManager>();
 
-    final configs = state.configManager.configList.values;
+    final configs = configManager.configList.values;
 
     return Scaffold(
       appBar: AppBar(
@@ -252,7 +250,7 @@ class TaskConfigScreen extends StatelessWidget {
           ...configs.map((c) => _makeConfigListItem(
                 context,
                 c,
-                store.chosenConfigurationName,
+                configManager.currentConfigName,
               )),
         ],
       ),