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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) {
    return DynamicColorBuilder(
      builder: (light, dark) => MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          colorScheme: light,
          useMaterial3: true,
        ),
        themeMode: ThemeMode.system,
        home: const MyHomePage(title: 'DynamicColorBuilder Demo'),
        )
      );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});  
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  @override
  Widget build(BuildContext context) {
    final light = Theme.of(context).colorScheme;

    return Scaffold(
      backgroundColor: Theme.of(context).colorScheme.surfaceContainerLowest,
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
              child: Column(
                mainAxisSize: MainAxisSize.min,
              children: [
                Text('Primary ${light.primary}'),
                Text('Primary Fixed ${light.primaryFixed} ${light.primaryFixed == light.primary}'),
                Text('Primary Fixed Dim  ${light.primaryFixedDim} ${light.primaryFixedDim == light.primary}'),
                Text('Surface  ${light.surface}'),
                Text('Surface Container  ${light.surfaceContainer} ${light.surfaceContainer == light.surface}'),
              ],),
            ), 
    );
  }
}

 final Color? _primaryFixed;
  /// A substitute for [primaryContainer] that's the same color for the dark
  /// and light themes.
  Color get primaryFixed => _primaryFixed ?? primary;

  final Color? _primaryFixedDim;
  /// A color used for elements needing more emphasis than [primaryFixed].
  Color get primaryFixedDim => _primaryFixedDim ?? primary;