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

void main() {
  runApp(const IFRClearanceApp());
}

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

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

class IFRClearanceAppState extends State<IFRClearanceApp> {
  bool _isDarkMode = false;

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

  // Load the dark mode setting from shared preferences
  Future<void> _loadDarkModeSetting() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    setState(() {
      _isDarkMode = prefs.getBool('isDarkMode') ?? false; // Default to false if not set
    });
  }

  // Save the dark mode setting to shared preferences
  Future<void> _saveDarkModeSetting(bool isDarkMode) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    prefs.setBool('isDarkMode', isDarkMode);
  }

  // Toggle dark mode and save the setting
  void _toggleDarkMode() {
    setState(() {
      _isDarkMode = !_isDarkMode;
    });
    _saveDarkModeSetting(_isDarkMode); // Save the new dark mode setting
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'IFR Buddy',
      themeMode: _isDarkMode ? ThemeMode.dark : ThemeMode.light,
      theme: ThemeData(
        scaffoldBackgroundColor: const Color.fromRGBO(191, 191, 191, 1), // Light mode background color
        appBarTheme: const AppBarTheme(
          color: Color.fromRGBO(135, 135, 135, 1), // Light mode AppBar color
        ),
        cardColor: Colors.white, // Light mode card color
      ),
      darkTheme: ThemeData(
        scaffoldBackgroundColor: Colors.black87, // Dark mode background color
        appBarTheme: const AppBarTheme(
          color: Color.fromRGBO(41, 41, 41, 1), // Dark mode AppBar color
        ),
        cardColor: Colors.grey[800], // Dark mode card color
        brightness: Brightness.dark,
      ),
      home: ExpectationInputPage(
        isDarkMode: _isDarkMode,
        toggleDarkMode: _toggleDarkMode,
      ),
    );
  }
}