import "package:flutter/material.dart";
import "package:flutter_riverpod/flutter_riverpod.dart";

import "package:smol_mail/data/providers/providers.dart";
import "package:smol_mail/presentation/theme/theme.dart";
import "package:smol_mail/presentation/routes/app_router.dart";

/// SnackBars need no context through this key, so the client's trust
/// warnings can be shown from anywhere in the protocol stack.
final rootScaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();

class AppWidget extends ConsumerStatefulWidget {
  const AppWidget({super.key});

  @override
  ConsumerState<AppWidget> createState() => _AppWidgetState();
}

class _AppWidgetState extends ConsumerState<AppWidget> {
  @override
  void initState() {
    super.initState();
    // §4/§8 trust warnings stay on screen until dismissed; ordinary notices
    // do not use this channel.
    ref.read(clientProvider).onWarning = (message) {
      rootScaffoldMessengerKey.currentState?.showSnackBar(
        SnackBar(
          backgroundColor: const Color.fromRGBO(198, 40, 40, 1),
          content: Text(message, style: const TextStyle(color: Colors.white)),
          duration: const Duration(days: 1),
          action: SnackBarAction(
            label: "Dismiss",
            textColor: Colors.white,
            onPressed: () =>
                rootScaffoldMessengerKey.currentState?.hideCurrentSnackBar(),
          ),
        ),
      );
    };
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp.router(
      title: "kirakira",
      theme: appThemeLight,
      darkTheme: appThemeDark,
      themeMode: ThemeMode.system,
      debugShowCheckedModeBanner: false,
      scaffoldMessengerKey: rootScaffoldMessengerKey,
      routerConfig: AppRouter(ref).config(),
    );
  }
}