some preference improvements

frontend/lib/modules/overview.dart

@@ -9,9 +9,9 @@ import 'package:fast_network_navigation/modules/map.dart';
 
 
 
-class MainPage extends StatefulWidget {
+class NavigationOverview extends StatefulWidget {
   @override
-  State<MainPage> createState() => _MainPageState();
+  State<NavigationOverview> createState() => _NavigationOverviewState();
 }
 
 
@@ -35,7 +35,7 @@ class Debounce {
 }
 
 
-class _MainPageState extends State<MainPage> {
+class _NavigationOverviewState extends State<NavigationOverview> {
 
   @override
   Widget build(BuildContext context) {

frontend/lib/modules/profile.dart

@@ -1,3 +1,4 @@
+import 'package:fast_network_navigation/structs/preferences.dart';
 import 'package:flutter/material.dart';
 
 
@@ -8,48 +9,83 @@ class ProfilePage extends StatefulWidget {
 }
 
 class _ProfilePageState extends State<ProfilePage> {
-  
-  double value = 0.0;
-  void onChanged(double newValue) {
-    setState(() {
-      value = newValue;
-    });
-  }
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('Profile'),
-      ),
-      body: Padding(
-        padding: EdgeInsets.all(8.0),
-        child: Column(
-          children: <Widget>[
-            Card(
-              child: ListTile(
-                leading: Icon(Icons.notifications_sharp),
-                title: Text('Notification 1'),
-                subtitle: Text('This is a first notification'),
-              ),
-            ),
-            Card(
-              child: ListTile(
-                leading: Icon(Icons.notifications_sharp),
-                title: Text('Notification 2'),
-                subtitle: Text('This is a notification'),
-              ),
-            ),
-            Card(
-              child: ListTile(
-                leading: Icon(Icons.outdoor_grill),
-                title: Text("Eating preference"),
-                subtitle: Slider.adaptive(value: value, onChanged: onChanged, min: 0, max: 5, divisions: 5, label: value.toInt().toString(),)
-                
-              )
-            )
-          ],
+    return ListView(
+      children: [
+        // First a round, centered image
+        Center(
+          child: CircleAvatar(
+            radius: 100,
+            child: Icon(Icons.person, size: 100),
+          )
         ),
-      )
+        Center(
+          child: Text('Curious traveler', style: TextStyle(fontSize: 24))
+        ),
+
+        Padding(
+          padding: EdgeInsets.all(10),
+        ),
+
+        Text('Please rate your preferences for the following activities:'),
+
+        // Now the sliders
+        ImportanceSliders()
+      ]
     );
   }
 }
+
+
+
+class ImportanceSliders extends StatefulWidget {
+
+  @override
+  State<ImportanceSliders> createState() => _ImportanceSlidersState();
+}
+
+
+class _ImportanceSlidersState extends State<ImportanceSliders> {
+
+  UserPreferences _prefs = UserPreferences();
+
+  @override
+  void initState() {
+    super.initState();
+    _prefs.load();
+  }
+
+  List<Card> _createSliders() {
+    List<Card> sliders = [];
+    for (SinglePreference pref in _prefs.preferences) {
+      sliders.add(Card(
+        child: ListTile(
+          leading: pref.icon,
+          title: Text(pref.name),
+          subtitle: Slider(
+            value: pref.value.toDouble(),
+            min: 0,
+            max: 10,
+            divisions: 10,
+            label: pref.value.toString(),
+            onChanged: (double newValue) {
+              setState(() {
+                pref.value = newValue.toInt();
+                _prefs.save();
+              });
+            },
+          )
+        ),
+        margin: EdgeInsets.only(left: 10, right: 10, top: 10, bottom: 0),
+        shadowColor: Colors.grey,
+      ));
+    }
+    return sliders;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(children: _createSliders());
+  }
+}

frontend/lib/modules/scaffold.dart

@@ -1,89 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'package:fast_network_navigation/modules/overview.dart';
-import 'package:fast_network_navigation/modules/profile.dart';
-
-
-class BasePage extends StatefulWidget {
-  const BasePage({super.key, required this.title});
-
-  final String title;
-
-  @override
-  State<BasePage> createState() => _BasePageState();
-}
-
-class _BasePageState extends State<BasePage> {
-  int _selectedIndex = 0;
-  
-  void _onItemTapped(int index) {
-    setState(() {
-      _selectedIndex = index;
-    });
-  }
-
-  Widget currentView = MainPage();
-  @override
-  Widget build(BuildContext context) {
-    final ThemeData theme = Theme.of(context);
-    
-    return Scaffold(
-      appBar: AppBar(title: Text(widget.title)),
-      body: Center(child: currentView),
-      drawer: Drawer(
-        // Add a ListView to the drawer. This ensures the user can scroll
-        // through the options in the drawer if there isn't enough vertical
-        // space to fit everything.
-        child: ListView(
-          // Important: Remove any padding from the ListView.
-          padding: EdgeInsets.zero,
-          children: [
-            DrawerHeader(
-              decoration: BoxDecoration(
-                gradient: LinearGradient(colors: [Colors.cyan, theme.primaryColor])
-              ),
-              child: const Text('The fanciest navigation!'),
-            ),
-            ListTile(
-              title: const Text('Home'),
-              selected: _selectedIndex == 0,
-              onTap: () {
-                // Update the state of the app
-                _onItemTapped(0);
-                // Then close the drawer
-                currentView = MainPage();
-                Navigator.pop(context);
-              },
-            ),
-            ListTile(
-              title: const Text('Business'),
-              selected: _selectedIndex == 1,
-              onTap: () {
-                // Update the state of the app
-                _onItemTapped(1);
-                currentView = const Text("ghfhggfhgf");
-
-                // Then close the drawer
-                Navigator.pop(context);
-              },
-            ),
-            // add a whitespace so that the settings are at the bottom
-            
-            const Divider(),
-            ListTile(
-              title: const Text('Settings'),
-              leading: const Icon(Icons.settings),
-              selected: _selectedIndex == 2,
-              onTap: () {
-                _onItemTapped(2);
-                currentView = ProfilePage();
-                Navigator.pop(context);
-                },
-            ),
-            // settings in the bottom of the drawer
-          ],
-        ),
-      ),
-    );
-  }
-}