import 'package:flutter/foundation.dart'; import 'package:hive/hive.dart'; import 'package:shared_preferences/shared_preferences.dart'; import 'package:cake_wallet/entities/preferences_key.dart'; import 'package:cake_wallet/entities/wallet_type.dart'; import 'package:cake_wallet/entities/node.dart'; import 'package:cake_wallet/entities/balance_display_mode.dart'; import 'package:cake_wallet/entities/fiat_currency.dart'; import 'package:cake_wallet/entities/node_list.dart'; import 'package:cake_wallet/entities/transaction_priority.dart'; Future defaultSettingsMigration( {@required int version, @required SharedPreferences sharedPreferences, @required Box nodes}) async { final currentVersion = sharedPreferences.getInt('current_default_settings_migration_version') ?? 0; if (currentVersion >= version) { return; } final migrationVersionsLength = version - currentVersion; final migrationVersions = List.generate( migrationVersionsLength, (i) => currentVersion + (i + 1)); await Future.forEach(migrationVersions, (int version) async { try { switch (version) { case 1: await sharedPreferences.setString( PreferencesKey.currentFiatCurrencyKey, FiatCurrency.usd.toString()); await sharedPreferences.setInt( PreferencesKey.currentTransactionPriorityKey, TransactionPriority.standart.raw); await sharedPreferences.setInt( PreferencesKey.currentBalanceDisplayModeKey, BalanceDisplayMode.availableBalance.raw); await sharedPreferences.setBool('save_recipient_address', true); await resetToDefault(nodes); await changeMoneroCurrentNodeToDefault( sharedPreferences: sharedPreferences, nodes: nodes); await changeBitcoinCurrentElectrumServerToDefault( sharedPreferences: sharedPreferences, nodes: nodes); break; case 2: await replaceNodesMigration(nodes: nodes); await replaceDefaultNode( sharedPreferences: sharedPreferences, nodes: nodes); break; case 3: await updateNodeTypes(nodes: nodes); await addBitcoinElectrumServerList(nodes: nodes); break; case 4: await changeBitcoinCurrentElectrumServerToDefault( sharedPreferences: sharedPreferences, nodes: nodes); break; default: break; } await sharedPreferences.setInt( 'current_default_settings_migration_version', version); } catch (e) { print('Migration error: ${e.toString()}'); } }); await sharedPreferences.setInt( 'current_default_settings_migration_version', version); } Future replaceNodesMigration({@required Box nodes}) async { final replaceNodes = { 'eu-node.cakewallet.io:18081': Node(uri: 'xmr-node-eu.cakewallet.com:18081', type: WalletType.monero), 'node.cakewallet.io:18081': Node( uri: 'xmr-node-usa-east.cakewallet.com:18081', type: WalletType.monero), 'node.xmr.ru:13666': Node(uri: 'node.monero.net:18081', type: WalletType.monero) }; nodes.values.forEach((Node node) async { final nodeToReplace = replaceNodes[node.uri]; if (nodeToReplace != null) { node.uri = nodeToReplace.uri; node.login = nodeToReplace.login; node.password = nodeToReplace.password; await node.save(); } }); } Future changeMoneroCurrentNodeToDefault( {@required SharedPreferences sharedPreferences, @required Box nodes}) async { final node = getMoneroDefaultNode(nodes: nodes); final nodeId = node?.key as int ?? 0; // 0 - England await sharedPreferences.setInt('current_node_id', nodeId); } Node getBitcoinDefaultElectrumServer({@required Box nodes}) { final uri = 'electrumx.cakewallet.com:50002'; return nodes.values .firstWhere((Node node) => node.uri == uri, orElse: () => null) ?? nodes.values.firstWhere((node) => node.type == WalletType.bitcoin, orElse: () => null); } Node getMoneroDefaultNode({@required Box nodes}) { final timeZone = DateTime.now().timeZoneOffset.inHours; var nodeUri = ''; if (timeZone >= 1) { // Eurasia nodeUri = 'xmr-node-eu.cakewallet.com:18081'; } else if (timeZone <= -4) { // America nodeUri = 'xmr-node-usa-east.cakewallet.com:18081'; } return nodes.values .firstWhere((Node node) => node.uri == nodeUri, orElse: () => null) ?? nodes.values.first; } Future changeBitcoinCurrentElectrumServerToDefault( {@required SharedPreferences sharedPreferences, @required Box nodes}) async { final server = getBitcoinDefaultElectrumServer(nodes: nodes); final serverId = server?.key as int ?? 0; await sharedPreferences.setInt('current_node_id_btc', serverId); } Future replaceDefaultNode( {@required SharedPreferences sharedPreferences, @required Box nodes}) async { const nodesForReplace = [ 'xmr-node-uk.cakewallet.com:18081', 'eu-node.cakewallet.io:18081', 'node.cakewallet.io:18081' ]; final currentNodeId = sharedPreferences.getInt('current_node_id'); final currentNode = nodes.values.firstWhere((Node node) => node.key == currentNodeId); final needToReplace = currentNode == null ? true : nodesForReplace.contains(currentNode.uri); if (!needToReplace) { return; } await changeMoneroCurrentNodeToDefault( sharedPreferences: sharedPreferences, nodes: nodes); } Future updateNodeTypes({@required Box nodes}) async { nodes.values.forEach((node) async { if (node.type == null) { node.type = WalletType.monero; await node.save(); } }); } Future addBitcoinElectrumServerList({@required Box nodes}) async { final serverList = await loadElectrumServerList(); await nodes.addAll(serverList); }