cake_wallet/lib/view_model/rescan_view_model.dart

import 'package:cake_wallet/bitcoin/bitcoin.dart';
import 'package:cw_core/wallet_base.dart';
import 'package:cw_core/wallet_type.dart';
import 'package:mobx/mobx.dart';

part 'rescan_view_model.g.dart';

class RescanViewModel = RescanViewModelBase with _$RescanViewModel;

enum RescanWalletState { rescaning, none }

abstract class RescanViewModelBase with Store {
  RescanViewModelBase(this._wallet)
      : state = RescanWalletState.none,
        isButtonEnabled = false;

  final WalletBase _wallet;

  @observable
  RescanWalletState state;

  @observable
  bool isButtonEnabled;

  @computed
  bool get isSilentPaymentsScan => bitcoin!.hasSelectedSilentPayments(_wallet);

  @action
  Future<void> rescanCurrentWallet({required int restoreHeight}) async {
    state = RescanWalletState.rescaning;
    _wallet.rescan(height: restoreHeight);
    if (_wallet.type != WalletType.bitcoin) _wallet.transactionHistory.clear();
    state = RescanWalletState.none;
  }
}