import 'dart:async';

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

import 'core/constants/app_constants.dart';
import 'core/di/injection.dart';
import 'core/notifications/local_notification_service.dart';
import 'core/router/app_router.dart';
import 'core/startup/auth_session_bootstrapper.dart';
import 'core/theme/app_theme.dart';
import 'features/auth/presentation/bloc/auth_bloc.dart';
import 'features/auth/presentation/bloc/auth_event.dart';
import 'features/auth/presentation/bloc/auth_state.dart';
import 'features/calendar/data/services/calendar_service.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await configureDependencies();
  await AppConstants.init();

  final authBloc = sl<AuthBloc>();
  authBloc.add(AuthStarted());

  runApp(
    LinksyApp(
      authBloc: authBloc,
      sessionBootstrapper: AuthSessionBootstrapper(
        calendarService: sl<CalendarService>(),
        notificationService: sl<LocalNotificationService>(),
      ),
    ),
  );
}

class LinksyApp extends StatelessWidget {
  final AuthBloc authBloc;
  final AuthSessionBootstrapper sessionBootstrapper;

  const LinksyApp({
    super.key,
    required this.authBloc,
    required this.sessionBootstrapper,
  });

  @override
  Widget build(BuildContext context) {
    return BlocProvider<AuthBloc>.value(
      value: authBloc,
      child: BlocListener<AuthBloc, AuthState>(
        listenWhen: (previous, current) => previous != current,
        listener: (context, state) {
          unawaited(sessionBootstrapper.syncForAuthState(state));
        },
        child: MaterialApp.router(
          title: 'Linksy',
          debugShowCheckedModeBanner: false,
          theme: AppTheme.light,
          routerConfig: createAppRouter(authBloc),
        ),
      ),
    );
  }
}