cake_wallet/lib/reactions/on_authentication_state_change.dart

import 'package:cake_wallet/di.dart';
import 'package:cake_wallet/entities/preferences_key.dart';
import 'package:cake_wallet/routes.dart';
import 'package:cake_wallet/utils/exception_handler.dart';
import 'package:cw_core/wallet_type.dart';
import 'package:flutter/widgets.dart';
import 'package:mobx/mobx.dart';
import 'package:cake_wallet/entities/load_current_wallet.dart';
import 'package:cake_wallet/store/authentication_store.dart';
import 'package:shared_preferences/shared_preferences.dart';

ReactionDisposer? _onAuthenticationStateChange;

dynamic loginError;

void startAuthenticationStateChange(
    AuthenticationStore authenticationStore, GlobalKey<NavigatorState> navigatorKey) {
  _onAuthenticationStateChange ??= autorun(
    (_) async {
      final state = authenticationStore.state;

      if (state == AuthenticationState.installed) {
        await _loadCurrentWallet();
        return;
      }

      if (state == AuthenticationState.allowed) {
        await _navigateBasedOnWalletType(navigatorKey);
      }
    },
  );
}

Future<void> _loadCurrentWallet() async {
  try {
    await loadCurrentWallet();
  } catch (error, stack) {
    loginError = error;
    ExceptionHandler.onError(FlutterErrorDetails(exception: error, stack: stack));
  }
}

Future<void> _navigateBasedOnWalletType(GlobalKey<NavigatorState> navigatorKey) async {
  final typeRaw = getIt.get<SharedPreferences>().getInt(PreferencesKey.currentWalletType) ?? 0;
  final type = deserializeFromInt(typeRaw);

  if (type == WalletType.haven) {
    await navigatorKey.currentState!
        .pushNamedAndRemoveUntil(Routes.preSeed, (route) => false, arguments: type);
    await navigatorKey.currentState!.pushNamed(Routes.seed, arguments: true);
    await navigatorKey.currentState!.pushNamedAndRemoveUntil(Routes.welcome, (route) => false);
    return;
  } else {
    await navigatorKey.currentState!.pushNamedAndRemoveUntil(Routes.dashboard, (route) => false);
  }
}