cake_wallet/lib/view_model/wallet_restore_view_model.dart

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import 'package:cake_wallet/bitcoin/bitcoin_wallet_creation_credentials.dart';
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import 'package:flutter/foundation.dart';
import 'package:hive/hive.dart';
import 'package:mobx/mobx.dart';
import 'package:cake_wallet/store/app_store.dart';
import 'package:cake_wallet/core/wallet_base.dart';
import 'package:cake_wallet/core/generate_wallet_password.dart';
import 'package:cake_wallet/core/wallet_creation_service.dart';
import 'package:cake_wallet/core/wallet_credentials.dart';
import 'package:cake_wallet/entities/wallet_type.dart';
import 'package:cake_wallet/entities/wallet_info.dart';
import 'package:cake_wallet/view_model/wallet_creation_vm.dart';
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import 'package:cake_wallet/monero/monero_wallet_service.dart';
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part 'wallet_restore_view_model.g.dart';
enum WalletRestoreMode { seed, keys }
class WalletRestoreViewModel = WalletRestoreViewModelBase
with _$WalletRestoreViewModel;
abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
WalletRestoreViewModelBase(AppStore appStore, this._walletCreationService,
Box<WalletInfo> walletInfoSource,
{@required WalletType type})
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: availableModes = type == WalletType.monero
? WalletRestoreMode.values
: [WalletRestoreMode.seed],
hasSeedLanguageSelector = type == WalletType.monero,
hasBlockchainHeightLanguageSelector = type == WalletType.monero,
super(appStore, walletInfoSource, type: type, isRecovery: true) {
isButtonEnabled =
!hasSeedLanguageSelector && !hasBlockchainHeightLanguageSelector;
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mode = WalletRestoreMode.seed;
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_walletCreationService.changeWalletType(type: type);
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}
@observable
WalletRestoreMode mode;
@observable
bool isButtonEnabled;
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final List<WalletRestoreMode> availableModes;
final bool hasSeedLanguageSelector;
final bool hasBlockchainHeightLanguageSelector;
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final WalletCreationService _walletCreationService;
@override
WalletCredentials getCredentials(dynamic options) {
final password = generateWalletPassword(type);
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final height = options['height'] as int;
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if (mode == WalletRestoreMode.seed) {
final seed = options['seed'] as String;
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switch (type) {
case WalletType.monero:
return MoneroRestoreWalletFromSeedCredentials(
name: name, height: height, mnemonic: seed, password: password);
case WalletType.bitcoin:
return BitcoinRestoreWalletFromSeedCredentials(
name: name, mnemonic: seed, password: password);
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case WalletType.litecoin:
return BitcoinRestoreWalletFromSeedCredentials(
name: name, mnemonic: seed, password: password);
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default:
break;
}
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}
if (mode == WalletRestoreMode.keys) {
final viewKey = options['viewKey'] as String;
final spendKey = options['spendKey'] as String;
final address = options['address'] as String;
return MoneroRestoreWalletFromKeysCredentials(
name: name,
height: height,
spendKey: spendKey,
viewKey: viewKey,
address: address,
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password: password,
language: 'English');
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}
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return null;
}
@override
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Future<WalletBase> process(WalletCredentials credentials) async {
if (mode == WalletRestoreMode.keys) {
return _walletCreationService.restoreFromKeys(credentials);
}
return _walletCreationService.restoreFromSeed(credentials);
}
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}