import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:relationship_saver/core/config/app_theme.dart';
import 'package:relationship_saver/features/auth/session_controller.dart';
import 'package:relationship_saver/features/auth/sign_in_view.dart';
import 'package:relationship_saver/features/home/app_shell.dart';
import 'package:relationship_saver/features/sync/sync_background_runner.dart';
import 'package:relationship_saver/integrations/backend/models/backend_models.dart';

void main() {
  runApp(const ProviderScope(child: RelationshipSaverApp()));
}

class RelationshipSaverApp extends ConsumerWidget {
  const RelationshipSaverApp({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final AsyncValue<AuthSession?> sessionState = ref.watch(
      sessionControllerProvider,
    );

    return MaterialApp(
      title: 'Relationship Saver',
      debugShowCheckedModeBanner: false,
      theme: AppTheme.light(),
      home: Scaffold(
        body: sessionState.when(
          data: (session) => session == null
              ? const SignInView()
              : const SyncBackgroundRunner(child: AppShell()),
          loading: () => const Center(child: CircularProgressIndicator()),
          error: (Object error, StackTrace stackTrace) => const SignInView(),
        ),
      ),
    );
  }
}