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// Production Flutter Clean Architecture: BLoC State Management Pattern
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:equatable/equatable.dart';

// 1. Immutable Event
abstract class PatientAuthEvent extends Equatable {
  const PatientAuthEvent();
}

class AuthenticateWithBiometrics extends PatientAuthEvent {
  final String deviceToken;
  const AuthenticateWithBiometrics(this.deviceToken);
  @override
  List<Object> get props => [deviceToken];
}

// 2. State Definition
abstract class PatientAuthState extends Equatable {
  const PatientAuthState();
}
class AuthSuccess extends PatientAuthState {
  final String sessionJwt;
  const AuthSuccess(this.sessionJwt);
  @override
  List<Object> get props => [sessionJwt];
}

// 3. Encrypted Auth BLoC Engine
class PatientAuthBloc extends Bloc<PatientAuthEvent, PatientAuthState> {
  final SecureStorageRepository _storage;
  PatientAuthBloc(this._storage) : super(AuthInitial()) {
    on<AuthenticateWithBiometrics>((event, emit) async {
      final token = await _storage.getEncryptedKey(event.deviceToken);
      if (token != null) emit(AuthSuccess(token));
    });
  }
}