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gap check fix ported from btc to bch

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This commit is contained in:
julian 2023-04-27 09:01:14 -06:00
parent aad8baf1f6
commit 1e9642ec94
1 changed files with 34 additions and 5 deletions
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39
lib/services/coins/bitcoincash/bitcoincash_wallet.dart
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@ -1,6 +1,7 @@
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'dart:math';
import 'package:bech32/bech32.dart';
import 'package:bip32/bip32.dart' as bip32;
@ -377,7 +378,7 @@ class BitcoinCashWallet extends CoinServiceAPI
level: LogLevel.Info);
}
Future<Tuple2<List<isar_models.Address>, DerivePathType>> _checkGaps(
Future<Tuple3<List<isar_models.Address>, DerivePathType, int>> _checkGaps(
int maxNumberOfIndexesToCheck,
int maxUnusedAddressGap,
int txCountBatchSize,
@ -387,6 +388,8 @@ class BitcoinCashWallet extends CoinServiceAPI
) async {
List<isar_models.Address> addressArray = [];
int gapCounter = 0;
int highestIndexWithHistory = 0;
for (int index = 0;
index < maxNumberOfIndexesToCheck && gapCounter < maxUnusedAddressGap;
index += txCountBatchSize) {
@ -460,6 +463,10 @@ class BitcoinCashWallet extends CoinServiceAPI
if (count > 0) {
iterationsAddressArray.add(txCountCallArgs["${_id}_$k"]!);
// update highest
highestIndexWithHistory = index + k;
// reset counter
gapCounter = 0;
}
@ -471,7 +478,7 @@ class BitcoinCashWallet extends CoinServiceAPI
// cache all the transactions while waiting for the current function to finish.
unawaited(getTransactionCacheEarly(iterationsAddressArray));
}
return Tuple2(addressArray, type);
return Tuple3(addressArray, type, highestIndexWithHistory);
}
Future<void> getTransactionCacheEarly(List<String> allAddresses) async {
@ -519,9 +526,9 @@ class BitcoinCashWallet extends CoinServiceAPI
deriveTypes.add(DerivePathType.bch44);
}
final List<Future<Tuple2<List<isar_models.Address>, DerivePathType>>>
final List<Future<Tuple3<List<isar_models.Address>, DerivePathType, int>>>
receiveFutures = [];
final List<Future<Tuple2<List<isar_models.Address>, DerivePathType>>>
final List<Future<Tuple3<List<isar_models.Address>, DerivePathType, int>>>
changeFutures = [];
const receiveChain = 0;
@ -579,6 +586,8 @@ class BitcoinCashWallet extends CoinServiceAPI
final changeResults = futuresResult[1];
final List<isar_models.Address> addressesToStore = [];
int highestReceivingIndexWithHistory = 0;
// If restoring a wallet that never received any funds, then set receivingArray manually
// If we didn't do this, it'd store an empty array
for (final tuple in receiveResults) {
@ -590,10 +599,15 @@ class BitcoinCashWallet extends CoinServiceAPI
);
addressesToStore.add(address);
} else {
highestReceivingIndexWithHistory = max(
tuple.item3,
highestReceivingIndexWithHistory,
);
addressesToStore.addAll(tuple.item1);
}
}
int highestChangeIndexWithHistory = 0;
// If restoring a wallet that never sent any funds with change, then set changeArray
// manually. If we didn't do this, it'd store an empty array.
for (final tuple in changeResults) {
@ -605,17 +619,32 @@ class BitcoinCashWallet extends CoinServiceAPI
);
addressesToStore.add(address);
} else {
highestChangeIndexWithHistory = max(
tuple.item3,
highestChangeIndexWithHistory,
);
addressesToStore.addAll(tuple.item1);
}
}
// remove extra addresses to help minimize risk of creating a large gap
addressesToStore.removeWhere((e) =>
e.subType == isar_models.AddressSubType.change &&
e.derivationIndex > highestChangeIndexWithHistory);
addressesToStore.removeWhere((e) =>
e.subType == isar_models.AddressSubType.receiving &&
e.derivationIndex > highestReceivingIndexWithHistory);
if (isRescan) {
await db.updateOrPutAddresses(addressesToStore);
} else {
await db.putAddresses(addressesToStore);
}
await _updateUTXOs();
await Future.wait([
_refreshTransactions(),
_updateUTXOs(),
]);
await Future.wait([
updateCachedId(walletId),