From 3d0c8d3724bdeaaa3ab95af6d75797bdfda2df29 Mon Sep 17 00:00:00 2001
From: Crondung <1922635@stud.hs-mannheim.de>
Date: Sun, 5 Mar 2023 21:37:27 +0100
Subject: [PATCH] main page stateless, extended pageprovider

---
 lib/pages/main_page.dart         | 48 ++++++++++----------------------
 lib/providers/page_provider.dart | 12 ++++++++
 lib/services/pages_service.dart  |  2 +-
 3 files changed, 28 insertions(+), 34 deletions(-)

diff --git a/lib/pages/main_page.dart b/lib/pages/main_page.dart
index 026d707..ef396ef 100644
--- a/lib/pages/main_page.dart
+++ b/lib/pages/main_page.dart
@@ -8,41 +8,16 @@ import 'package:smoke_cess_app/providers/settings_provider.dart';
 
 import '../widgets/todo_icon.dart';
 
-class MyHomePage extends StatefulWidget {
+class MyHomePage extends StatelessWidget {
   const MyHomePage({super.key});
 
-  @override
-  MyHomePageState createState() => MyHomePageState();
-}
-
-class MyHomePageState extends State<MyHomePage> {
-  int _selectedIndex = 4;
-  bool _isConfigured = false;
-
-  void _onItemTapped(int index) {
-    PageProvider pageProvider = context.read<PageProvider>();
-    setState(() {
-      if (_isConfigured) {
-        pageProvider.showForm = false;
-        _selectedIndex = index;
-        return;
-      }
-      AwesomeDialog(
-        context: context,
-        dialogType: DialogType.info,
-        title: 'Fehlende Konfiguration',
-        desc: 'Bitte QR Code Scannen!',
-      ).show();
-    });
-  }
-
   @override
   Widget build(BuildContext context) {
-    var settingsProvider = context.watch<SettingsProvider>();
-    var tasksProvider = context.watch<TasksProvider>();
+    SettingsProvider settingsProvider = context.watch<SettingsProvider>();
+    TasksProvider tasksProvider = context.watch<TasksProvider>();
     PageProvider pageProvider = context.watch<PageProvider>();
+    bool isConfigured = settingsProvider.initialized;
 
-    _isConfigured = settingsProvider.initialized;
     return Scaffold(
       appBar: AppBar(
           title: Row(
@@ -59,13 +34,20 @@ class MyHomePageState extends State<MyHomePage> {
             ],
           ),
           Text(
-              '${pages.values.elementAt(_selectedIndex)['title']} ${_isConfigured ? "Gruppe ${settingsProvider.settings?.group}" : ""}')
+              '${pageProvider.currentPageData['title']} ${isConfigured ? "Gruppe ${settingsProvider.settings?.group}" : ""}')
         ],
       )),
-      body: pages.values.elementAt(_selectedIndex)['page'],
+      body: pageProvider.currentPageData['page'],
       bottomNavigationBar: NavigationBar(
-          onDestinationSelected: _onItemTapped,
-          selectedIndex: _selectedIndex,
+          onDestinationSelected: isConfigured
+              ? pageProvider.currentPage
+              : (value) => AwesomeDialog(
+                    context: context,
+                    dialogType: DialogType.info,
+                    title: 'Fehlende Konfiguration',
+                    desc: 'Bitte QR Code Scannen!',
+                  ).show(),
+          selectedIndex: pageProvider.currentPageIndex,
           destinations: pages.keys.map((key) {
             return NavigationDestination(
                 icon: tasksProvider.tasks[key] ?? false
diff --git a/lib/providers/page_provider.dart b/lib/providers/page_provider.dart
index a17ff26..ce1741a 100644
--- a/lib/providers/page_provider.dart
+++ b/lib/providers/page_provider.dart
@@ -1,10 +1,22 @@
 import 'package:flutter/material.dart';
+import 'package:smoke_cess_app/services/pages_service.dart';
 
 class PageProvider extends ChangeNotifier {
   bool showForm = false;
+  Pages _currentPage = Pages.settings;
 
   void swap() {
     showForm = !showForm;
     notifyListeners();
   }
+
+  Map<String, dynamic> get currentPageData => pages[_currentPage]!;
+
+  int get currentPageIndex => _currentPage.index;
+
+  void currentPage(int index) {
+    showForm = false;
+    _currentPage = Pages.values[index];
+    notifyListeners();
+  }
 }
diff --git a/lib/services/pages_service.dart b/lib/services/pages_service.dart
index 0c19383..9ec00d6 100644
--- a/lib/services/pages_service.dart
+++ b/lib/services/pages_service.dart
@@ -8,8 +8,8 @@ import '../pages/sleep_page.dart';
 enum Pages {
   mood,
   sleep,
-  relapse,
   timer,
+  relapse,
   settings,
 }