import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

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

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

class _SettingsSimPageState extends State<SettingsSimPage> {
  int _selectedSim = 0;

  @override
  void initState() {
    super.initState();
    _loadDefaultSim();
  }

  void _loadDefaultSim() async {
    final prefs = await SharedPreferences.getInstance();
    setState(() {
      _selectedSim = prefs.getInt('default_sim_slot') ?? 0;
    });
  }

  void _onSimChanged(int? value) async {
    if (value != null) {
      final prefs = await SharedPreferences.getInstance();
      await prefs.setInt('default_sim_slot', value);
      setState(() {
        _selectedSim = value;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      appBar: AppBar(
        title: const Text('Default SIM'),
      ),
      body: ListView(
        children: [
          RadioListTile<int>(
            title: const Text('SIM 1', style: TextStyle(color: Colors.white)),
            value: 0,
            groupValue: _selectedSim,
            onChanged: _onSimChanged,
            activeColor: Colors.blue,
          ),
          RadioListTile<int>(
            title: const Text('SIM 2', style: TextStyle(color: Colors.white)),
            value: 1,
            groupValue: _selectedSim,
            onChanged: _onSimChanged,
            activeColor: Colors.blue,
          ),
        ],
      ),
    );
  }
}