import 'package:flutter/material.dart';

import 'models/auth_session.dart';
import 'screens/auth_screen.dart';
import 'screens/dashboard_screen.dart';
import 'services/address_repository.dart';
import 'services/auth_repository.dart';

class MyApp extends StatelessWidget {
  const MyApp({
    super.key,
    AuthRepository? authRepository,
    AddressRepository? addressRepository,
    this.enableLiveFeatures = true,
  })  : _authRepository = authRepository ?? const HttpAuthRepository(),
        _addressRepository = addressRepository ?? const HttpAddressRepository();

  final AuthRepository _authRepository;
  final AddressRepository _addressRepository;
  final bool enableLiveFeatures;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Acceso',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: const Color(0xFF0F766E)),
        useMaterial3: true,
      ),
      home: AuthBootstrap(
        authRepository: _authRepository,
        addressRepository: _addressRepository,
        enableLiveFeatures: enableLiveFeatures,
      ),
    );
  }
}

class AuthBootstrap extends StatefulWidget {
  const AuthBootstrap({
    super.key,
    required this.authRepository,
    required this.addressRepository,
    this.enableLiveFeatures = true,
  });

  final AuthRepository authRepository;
  final AddressRepository addressRepository;
  final bool enableLiveFeatures;

  @override
  State<AuthBootstrap> createState() => _AuthBootstrapState();
}

class _AuthBootstrapState extends State<AuthBootstrap> {
  late final Future<AuthSession?> _sessionFuture;

  @override
  void initState() {
    super.initState();
    _sessionFuture = widget.authRepository.restoreSession();
  }

  @override
  Widget build(BuildContext context) {
    return FutureBuilder<AuthSession?>(
      future: _sessionFuture,
      builder: (context, snapshot) {
        if (snapshot.connectionState != ConnectionState.done) {
          return const _LoadingView();
        }

        final session = snapshot.data;
        if (session != null) {
          return DashboardScreen(
            authRepository: widget.authRepository,
            addressRepository: widget.addressRepository,
            session: session,
            savedAddress: null,
            enableLiveFeatures: widget.enableLiveFeatures,
          );
        }

        return AuthScreen(
          authRepository: widget.authRepository,
          addressRepository: widget.addressRepository,
          enableLiveFeatures: widget.enableLiveFeatures,
        );
      },
    );
  }
}

class _LoadingView extends StatelessWidget {
  const _LoadingView();

  @override
  Widget build(BuildContext context) {
    return const Scaffold(
      body: Center(
        child: CircularProgressIndicator(),
      ),
    );
  }
}