import 'package:flutter/material.dart';

const seed = Color(0xFF6750A4);

const lightColorScheme = ColorScheme(
	brightness: Brightness.light,
	primary : Color(0xFF6750A4),
	onPrimary : Color(0xFFFFFFFF),
	primaryContainer : Color(0xFFEADDFF),
	onPrimaryContainer : Color(0xFF21005D),
	secondary : Color(0xFF625B71),
	onSecondary : Color(0xFFFFFFFF),
	secondaryContainer : Color(0xFFE8DEF8),
	onSecondaryContainer : Color(0xFF1D192B),
	tertiary : Color(0xFF7D5260),
	onTertiary : Color(0xFFFFFFFF),
	tertiaryContainer : Color(0xFFFFD8E4),
	onTertiaryContainer : Color(0xFF31111D),
	error : Color(0xFFB3261E),
	errorContainer : Color(0xFFF9DEDC),
	onError : Color(0xFFFFFFFF),
	onErrorContainer : Color(0xFF410E0B),
	background : Color(0xFFFFFBFE),
	onBackground : Color(0xFF1C1B1F),
	surface : Color(0xFFFFFBFE),
	onSurface : Color(0xFF1C1B1F),
	surfaceVariant : Color(0xFFE7E0EC),
	onSurfaceVariant : Color(0xFF49454F),
	outline : Color(0xFF79747E),
	onInverseSurface : Color(0xFFF4EFF4),
	inverseSurface : Color(0xFF313033),
	inversePrimary : Color(0xFFD0BCFF),
	shadow : Color(0xFF000000),
);

const darkColorScheme = ColorScheme(
	brightness: Brightness.dark,
	primary : Color(0xFFD0BCFF),
	onPrimary : Color(0xFF381E72),
	primaryContainer : Color(0xFF4F378B),
	onPrimaryContainer : Color(0xFFEADDFF),
	secondary : Color(0xFFCCC2DC),
	onSecondary : Color(0xFF332D41),
	secondaryContainer : Color(0xFF4A4458),
	onSecondaryContainer : Color(0xFFE8DEF8),
	tertiary : Color(0xFFEFB8C8),
	onTertiary : Color(0xFF492532),
	tertiaryContainer : Color(0xFF633B48),
	onTertiaryContainer : Color(0xFFFFD8E4),
	error : Color(0xFFF2B8B5),
	errorContainer : Color(0xFF8C1D18),
	onError : Color(0xFF601410),
	onErrorContainer : Color(0xFFF9DEDC),
	background : Color(0xFF1C1B1F),
	onBackground : Color(0xFFE6E1E5),
	surface : Color(0xFF1C1B1F),
	onSurface : Color(0xFFE6E1E5),
	surfaceVariant : Color(0xFF49454F),
	onSurfaceVariant : Color(0xFFCAC4D0),
	outline : Color(0xFF938F99),
	onInverseSurface : Color(0xFF1C1B1F),
	inverseSurface : Color(0xFFE6E1E5),
	inversePrimary : Color(0xFF6750A4),
	shadow : Color(0xFF000000),
);

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key, this.dark = false, this.useMaterial3 = true})
      : super(key: key);

  final bool dark;
  final bool useMaterial3;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Material App',
      themeMode: dark ? ThemeMode.dark : ThemeMode.light,
      theme: ThemeData.light().copyWith(
        useMaterial3: useMaterial3,
        colorScheme:
            useMaterial3 ? lightColorScheme : const ColorScheme.light(),
      ),
      darkTheme: ThemeData.dark().copyWith(
        useMaterial3: useMaterial3,
        colorScheme: useMaterial3 ? darkColorScheme : const ColorScheme.dark(),
      ),
      home: const Sample(),
    );
  }
}

class Sample extends StatelessWidget {
  const Sample({Key? key}) : super(key: key);

  Future<void> _showAlertDialog(BuildContext context) async {
    return showDialog<void>(
      context: context,
      barrierDismissible: false, // user must tap button!
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Text('Basic dialog title'),
          content: const Text(
              'A dialog is a type of modal window that\nappears in front of app content to\nprovide critical information, or prompt\nfor a decision to be made.'),
          actions: <Widget>[
            TextButton(
              style: TextButton.styleFrom(
                textStyle: Theme.of(context).textTheme.labelLarge,
              ),
              child: const Text('Enabled'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
            TextButton(
              style: TextButton.styleFrom(
                textStyle: Theme.of(context).textTheme.labelLarge,
              ),
              child: const Text('Enabled'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text(' Sample'),
      ),
      body: Center(
        child: FloatingActionButton.extended(
          onPressed: () async => _showAlertDialog(context),
          label: const Text('M3 Alert Dialog'),
        ),
      ),
    );
  }
}