cpd_2022_zi/lib/pages/main_page.dart

import 'package:awesome_dialog/awesome_dialog.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:smoke_cess_app/providers/tasks_provider.dart';
import 'package:smoke_cess_app/services/pages_service.dart';
import 'package:smoke_cess_app/providers/settings_provider.dart';

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  MyHomePageState createState() => MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  int _selectedIndex = 4;
  bool _isConfigured = false;

  void _onItemTapped(int index) {
    setState(() {
      _isConfigured
          ? _selectedIndex = index
          : AwesomeDialog(
              context: context,
              dialogType: DialogType.info,
              title: 'Fehlende Konfiguration',
              desc: 'Bitte QR Code Scannen!',
            ).show();
    });
  }

  @override
  Widget build(BuildContext context) {
    var settingsModel = context.watch<SettingsProvider>();
    var tasksModel = context.watch<TasksProvider>();
    _isConfigured = settingsModel.initialized;
    return Scaffold(
      appBar: AppBar(
          title: Text(
              '${pages.values.elementAt(_selectedIndex)['title']} ${_isConfigured ? "Gruppe ${settingsModel.settings?.group}" : ""}')),
      body: Center(
          child: SingleChildScrollView(
              child: pages.values.elementAt(_selectedIndex)['page'])),
      bottomNavigationBar: NavigationBar(
          onDestinationSelected: _onItemTapped,
          selectedIndex: _selectedIndex,
          destinations: pages.keys.map((key) {
            return NavigationDestination(
                icon: tasksModel.tasks[key] ?? false
                    ? MyToDoIcon(pages[key]?['icon'])
                    : pages[key]!['icon'],
                label: pages[key]?['title']);
          }).toList()),
    );
  }
}

class MyToDoIcon extends StatelessWidget {
  final Icon _icon;
  const MyToDoIcon(this._icon, {super.key});

  @override
  Widget build(BuildContext context) {
    return Stack(children: <Widget>[
      _icon,
      const Positioned(
        // draw a red marble
        top: 0.0,
        right: 0.0,
        child: Icon(Icons.brightness_1, size: 10.0, color: Colors.redAccent),
      )
    ]);
  }
}