wip

assets/config.json

@@ -0,0 +1,4 @@
+{
+  "group": "Gruppe 2",
+  "key": "value"
+}

lib/main.dart

@@ -10,6 +10,6 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(title: _title, home: MyHomePage());
+    return MaterialApp(title: _title, home: MyHomePage());
   }
 }

lib/models/settings.dart

@@ -0,0 +1,13 @@
+class Settings {
+  final String group;
+  final String key;
+  //final List<String> relapseCategories;
+
+  Settings(this.group, this.key); //, this.relapseCategories);
+
+  Settings.fromJson(Map<String, dynamic> json)
+      : group = json['group'].toString(),
+        key = json['key'].toString()
+  //relapseCategories = json['relapse_categories']
+  ;
+}

lib/pages/main_page.dart

@@ -1,9 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:smoke_cess_app/pages/mood_page.dart';
 import 'package:smoke_cess_app/pages/relapse_page.dart';
-import 'package:smoke_cess_app/pages/settings_page.dart';
+import 'package:smoke_cess_app/pages/scanner_page.dart';
 import 'package:smoke_cess_app/pages/sleep_page.dart';
 import 'package:smoke_cess_app/pages/timer_page.dart';
+import 'package:smoke_cess_app/service/settings_service.dart';
+import 'package:smoke_cess_app/widgets/missing_config_popup.dart';
 
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key});
@@ -13,24 +15,38 @@ class MyHomePage extends StatefulWidget {
 }
 
 class MyHomePageState extends State<MyHomePage> {
-  int _selectedIndex = 2;
+  int _selectedIndex = 4;
+  final SettingsService settingsService = SettingsService();
+
   final List<String> _titles = [
     'Stimmung',
     'Schlaf',
     'Timer',
     'Rückfall',
-    'Einstellungen'
+    'Scanner'
   ];
-  static const List<Widget> _widgetOptions = <Widget>[
-    MoodPage(),
-    SleepPage(),
-    StopWatchTimerPage(),
-    RelapsePage(),
+  static final List<Widget> _widgetOptions = <Widget>[
+    const MoodPage(),
+    const SleepPage(),
+    const StopWatchTimerPage(),
+    const RelapsePage(),
     SettingsPage(),
   ];
 
   void _onItemTapped(int index) {
-    setState(() => _selectedIndex = index);
+    setState(() async {
+      (await settingsService.getGroup() != null)
+          ? _selectedIndex = index
+          : showDialog(
+              context: context,
+              builder: (BuildContext context) {
+                Future.delayed(
+                    const Duration(seconds: 3),
+                    () => Navigator.of(context)
+                        .pop(true)); //Dismiss popup after 3 seconds
+                return const MissingConfigPopup();
+              });
+    });
   }
 
   @override
@@ -58,7 +74,7 @@ class MyHomePageState extends State<MyHomePage> {
               icon: Icon(Icons.smoke_free_outlined, color: Colors.black),
               label: 'Rückfall'),
           NavigationDestination(
-              icon: Icon(Icons.settings, color: Colors.black),
+              icon: Icon(Icons.camera_alt_outlined, color: Colors.black),
               label: 'Settings'),
         ],
 

lib/pages/scanner_page.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/service/settings_service.dart';
+
+class SettingsPage extends StatelessWidget {
+  SettingsPage({super.key});
+  SettingsService service = SettingsService();
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+        child: Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        const Text('Hier taucht die Kamera zum Scannen auf'),
+        const SizedBox(height: 30),
+        ElevatedButton(
+          style: ElevatedButton.styleFrom(
+              textStyle: const TextStyle(fontSize: 20)),
+          onPressed: () {
+            service.loadSettings();
+          },
+          child: const Text('Read JSON'),
+        )
+      ],
+    ));
+  }
+}

lib/pages/settings_page.dart

@@ -1,10 +0,0 @@
-import 'package:flutter/material.dart';
-
-class SettingsPage extends StatelessWidget {
-  const SettingsPage({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return const Center(child: Text('Hier können Settings eingestellt werden'));
-  }
-}

lib/service/json_service.dart

@@ -0,0 +1,9 @@
+import 'package:flutter/services.dart';
+import 'dart:convert';
+
+const String configJSONPath = 'assets/config.json';
+
+Future<Map<String, dynamic>> loadLocalConfigJSON() async {
+  String content = await rootBundle.loadString(configJSONPath);
+  return jsonDecode(content);
+}

lib/service/settings_service.dart

@@ -1,4 +1,6 @@
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:smoke_cess_app/models/settings.dart';
+import 'package:smoke_cess_app/service/json_service.dart';
 
 class SettingsService {
   final Future<SharedPreferences> _prefs = SharedPreferences.getInstance();
@@ -7,6 +9,11 @@ class SettingsService {
     setIntSetting('workout_duration_minutes', 5);
   }
 
+  //access group setting which was saved in local storage
+  Future<String?> getGroup() {
+    return getStringSetting('group');
+  }
+
   void setStringSetting(String settingKey, String settingValue) =>
       _prefs.then((pref) => pref.setString(settingKey, settingValue));
 
@@ -19,7 +26,24 @@ class SettingsService {
   Future<int?> getIntSetting(String settingKey) =>
       _prefs.then((pref) => pref.getInt(settingKey));
 
+  void setStringList(String settingKey, List<String> list) =>
+      _prefs.then((pref) => pref.setStringList(settingKey, list));
+
   //Add other setters and getters if needed
   //other possible SharedPreferences Types: Int, Bool, Double, StringList
   //see https://pub.dev/packages/shared_preferences
+
+  Future<void> loadSettings() async {
+    Map<String, dynamic> configJSON = await loadLocalConfigJSON();
+    Settings settings = Settings.fromJson(configJSON);
+    print(settings.group);
+    saveSettings(settings);
+    String gruppe = (await getGroup())!;
+    print('Gruppe: $gruppe');
+  }
+
+  void saveSettings(Settings settings) {
+    setStringSetting('group', settings.group);
+    setStringSetting('key', settings.key);
+  }
 }

lib/widgets/missing_config_popup.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+
+class MissingConfigPopup extends StatelessWidget {
+  const MissingConfigPopup({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: const Text('Fehlende Konfiguration'),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: const <Widget>[
+          Text("Bitte QR Code Scannen"),
+        ],
+      ),
+    );
+  }
+}

pubspec.yaml

@@ -62,6 +62,8 @@ flutter:
   # assets:
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg
+  assets:
+    - config.json
 
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware