Add (for now) simple settings page to reset the exercise cache

This should be expanded later to allow to re-fetch all available exercises, etc.

lib/widgets/core/about.dart

@@ -57,16 +57,11 @@ class AboutEntry extends StatelessWidget {
   }
 }
 
-class AboutPage extends StatefulWidget {
+class AboutPage extends StatelessWidget {
   static String routeName = '/AboutPage';
 
   const AboutPage({super.key});
 
-  @override
-  State<AboutPage> createState() => _AboutPageState();
-}
-
-class _AboutPageState extends State<AboutPage> {
   @override
   Widget build(BuildContext context) {
     final deviceSize = MediaQuery.of(context).size;

lib/widgets/core/app_bar.dart

@@ -27,6 +27,7 @@ import 'package:wger/providers/user.dart';
 import 'package:wger/providers/workout_plans.dart';
 import 'package:wger/screens/form_screen.dart';
 import 'package:wger/widgets/core/about.dart';
+import 'package:wger/widgets/core/settings.dart';
 import 'package:wger/widgets/user/forms.dart';
 
 class MainAppBar extends StatelessWidget implements PreferredSizeWidget {
@@ -50,9 +51,7 @@ class MainAppBar extends StatelessWidget implements PreferredSizeWidget {
                     actions: [
                       TextButton(
                         child: Text(MaterialLocalizations.of(context).closeButtonLabel),
-                        onPressed: () {
-                          Navigator.of(context).pop();
-                        },
+                        onPressed: () => Navigator.of(context).pop(),
                       ),
                     ],
                     contentPadding: EdgeInsets.zero,
@@ -63,22 +62,23 @@ class MainAppBar extends StatelessWidget implements PreferredSizeWidget {
                           //dense: true,
                           leading: const Icon(Icons.person),
                           title: Text(AppLocalizations.of(context).userProfile),
-                          onTap: () {
-                            Navigator.pushNamed(
-                              context,
-                              FormScreen.routeName,
-                              arguments: FormScreenArguments(
-                                AppLocalizations.of(context).userProfile,
-                                UserProfileForm(context.read<UserProvider>().profile!),
-                              ),
-                            );
-                          },
+                          onTap: () => Navigator.pushNamed(
+                            context,
+                            FormScreen.routeName,
+                            arguments: FormScreenArguments(
+                              AppLocalizations.of(context).userProfile,
+                              UserProfileForm(context.read<UserProvider>().profile!),
+                            ),
+                          ),
+                        ),
+                        ListTile(
+                          leading: const Icon(Icons.settings),
+                          onTap: () => Navigator.of(context).pushNamed(SettingsPage.routeName),
+                          title: Text(AppLocalizations.of(context).settingsTitle),
                         ),
                         ListTile(
                           leading: const Icon(Icons.info),
-                          onTap: () {
-                            Navigator.of(context).pushNamed(AboutPage.routeName);
-                          },
+                          onTap: () => Navigator.of(context).pushNamed(AboutPage.routeName),
                           title: Text(AppLocalizations.of(context).aboutPageTitle),
                         ),
                         const Divider(),

lib/widgets/core/settings.dart

@@ -0,0 +1,106 @@
+/*
+ * This file is part of wger Workout Manager <https://github.com/wger-project>.
+ * Copyright (C) wger Team
+ *
+ * wger Workout Manager is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * wger Workout Manager is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+//import 'package:drift/drift.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:provider/provider.dart';
+import 'package:wger/helpers/misc.dart';
+import 'package:wger/providers/exercises.dart';
+
+class AboutEntry extends StatelessWidget {
+  final String url;
+  final String title;
+  final String content;
+  final Icon icon;
+
+  const AboutEntry({
+    required this.title,
+    required this.content,
+    required this.url,
+    required this.icon,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: icon,
+      title: Text(title),
+      subtitle: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(content),
+          Text(
+            url,
+            style: const TextStyle(color: Colors.blue),
+          ),
+        ],
+      ),
+      contentPadding: EdgeInsets.zero,
+      onTap: () async => launchURL(url, context),
+    );
+  }
+}
+
+class SettingsPage extends StatefulWidget {
+  static String routeName = '/SettingsPage';
+
+  const SettingsPage({super.key});
+
+  @override
+  State<SettingsPage> createState() => _SettingsPageState();
+}
+
+class _SettingsPageState extends State<SettingsPage> {
+  @override
+  Widget build(BuildContext context) {
+    final exerciseProvider = Provider.of<ExercisesProvider>(context, listen: false);
+    final today = DateTime.now();
+
+    return Scaffold(
+        appBar: AppBar(
+          title: Text(AppLocalizations.of(context).settingsTitle),
+        ),
+        body: ListView(
+          children: [
+            ListTile(
+              // leading: const Icon(Icons.cached),
+              title: Text(AppLocalizations.of(context).settingsCacheTitle),
+              subtitle: Text(AppLocalizations.of(context).settingsCacheDescription),
+              trailing: IconButton(
+                key: const ValueKey('cacheIcon'),
+                icon: const Icon(Icons.cached),
+                onPressed: () async {
+                  await exerciseProvider.clearAllCachesAndPrefs();
+
+                  if (context.mounted) {
+                    final snackBar = SnackBar(
+                      content: Text(AppLocalizations.of(context).settingsCacheDeletedSnackbar),
+                    );
+
+                    // Find the ScaffoldMessenger in the widget tree
+                    // and use it to show a SnackBar.
+                    ScaffoldMessenger.of(context).showSnackBar(snackBar);
+                  }
+                },
+              ),
+            )
+          ],
+        ));
+  }
+}