PART tx V2 changes (WIP)

lib/wallets/wallet/impl/particl_wallet.dart

@@ -1,12 +1,16 @@
 import 'package:isar/isar.dart';
 import 'package:stackwallet/models/isar/models/blockchain_data/address.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/transaction.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/input_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/output_v2.dart';
+import 'package:stackwallet/models/isar/models/blockchain_data/v2/transaction_v2.dart';
 import 'package:stackwallet/utilities/amount/amount.dart';
+import 'package:stackwallet/utilities/logger.dart';
 import 'package:stackwallet/wallets/crypto_currency/coins/particl.dart';
 import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
 import 'package:stackwallet/wallets/wallet/intermediate/bip39_hd_wallet.dart';
 import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/coin_control_interface.dart';
 import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart';
-import 'package:tuple/tuple.dart';
 
 class ParticlWallet extends Bip39HDWallet
     with ElectrumXInterface, CoinControlInterface {
@@ -71,22 +75,211 @@ class ParticlWallet extends Bip39HDWallet
 
   @override
   Future<void> updateTransactions() async {
-    final currentChainHeight = await fetchChainHeight();
+    // Get all addresses.
+    List<Address> allAddressesOld = await fetchAddressesForElectrumXScan();
 
-    // TODO: [prio=high] switch to V2 transactions.
+    // Separate receiving and change addresses.
-    final data = await fetchTransactionsV1(
+    Set<String> receivingAddresses = allAddressesOld
-      addresses: await fetchAddressesForElectrumXScan(),
+        .where((e) => e.subType == AddressSubType.receiving)
-      currentChainHeight: currentChainHeight,
+        .map((e) => e.value)
+        .toSet();
+    Set<String> changeAddresses = allAddressesOld
+        .where((e) => e.subType == AddressSubType.change)
+        .map((e) => e.value)
+        .toSet();
+
+    // Remove duplicates.
+    final allAddressesSet = {...receivingAddresses, ...changeAddresses};
+
+    // Fetch history from ElectrumX.
+    final List<Map<String, dynamic>> allTxHashes =
+        await fetchHistory(allAddressesSet);
+
+    // Only parse new txs (not in db yet).
+    List<Map<String, dynamic>> allTransactions = [];
+    for (final txHash in allTxHashes) {
+      // Check for duplicates by searching for tx by tx_hash in db.
+      final storedTx = await mainDB.isar.transactionV2s
+          .where()
+          .txidWalletIdEqualTo(txHash["tx_hash"] as String, walletId)
+          .findFirst();
+
+      if (storedTx == null ||
+          storedTx.height == null ||
+          (storedTx.height != null && storedTx.height! <= 0)) {
+        // Tx not in db yet.
+        final tx = await electrumXCachedClient.getTransaction(
+          txHash: txHash["tx_hash"] as String,
+          verbose: true,
+          coin: cryptoCurrency.coin,
         );
 
-    await mainDB.addNewTransactionData(
+        // Only tx to list once.
-      data
+        if (allTransactions
-          .map((e) => Tuple2(
+                .indexWhere((e) => e["txid"] == tx["txid"] as String) ==
-                e.transaction,
+            -1) {
-                e.address,
+          tx["height"] = txHash["height"];
-              ))
+          allTransactions.add(tx);
-          .toList(),
+        }
-      walletId,
+      }
+    }
+
+    // Parse all new txs.
+    final List<TransactionV2> txns = [];
+    for (final txData in allTransactions) {
+      bool wasSentFromThisWallet = false;
+      // Set to true if any inputs were detected as owned by this wallet.
+
+      bool wasReceivedInThisWallet = false;
+      // Set to true if any outputs were detected as owned by this wallet.
+
+      // Parse inputs.
+      BigInt amountReceivedInThisWallet = BigInt.zero;
+      BigInt changeAmountReceivedInThisWallet = BigInt.zero;
+      final List<InputV2> inputs = [];
+      for (final jsonInput in txData["vin"] as List) {
+        final map = Map<String, dynamic>.from(jsonInput as Map);
+
+        final List<String> addresses = [];
+        String valueStringSats = "0";
+        OutpointV2? outpoint;
+
+        final coinbase = map["coinbase"] as String?;
+
+        if (coinbase == null) {
+          // Not a coinbase (ie a typical input).
+          final txid = map["txid"] as String;
+          final vout = map["vout"] as int;
+
+          final inputTx = await electrumXCachedClient.getTransaction(
+            txHash: txid,
+            coin: cryptoCurrency.coin,
           );
+
+          final prevOutJson = Map<String, dynamic>.from(
+              (inputTx["vout"] as List).firstWhere((e) => e["n"] == vout)
+                  as Map);
+
+          final prevOut = OutputV2.fromElectrumXJson(
+            prevOutJson,
+            decimalPlaces: cryptoCurrency.fractionDigits,
+            isFullAmountNotSats: true,
+            walletOwns: false, // Doesn't matter here as this is not saved.
+          );
+
+          outpoint = OutpointV2.isarCantDoRequiredInDefaultConstructor(
+            txid: txid,
+            vout: vout,
+          );
+          valueStringSats = prevOut.valueStringSats;
+          addresses.addAll(prevOut.addresses);
+        }
+
+        InputV2 input = InputV2.isarCantDoRequiredInDefaultConstructor(
+          scriptSigHex: map["scriptSig"]?["hex"] as String?,
+          sequence: map["sequence"] as int?,
+          outpoint: outpoint,
+          valueStringSats: valueStringSats,
+          addresses: addresses,
+          witness: map["witness"] as String?,
+          coinbase: coinbase,
+          innerRedeemScriptAsm: map["innerRedeemscriptAsm"] as String?,
+          // Need addresses before we can know if the wallet owns this input.
+          walletOwns: false,
+        );
+
+        // Check if input was from this wallet.
+        if (allAddressesSet.intersection(input.addresses.toSet()).isNotEmpty) {
+          wasSentFromThisWallet = true;
+          input = input.copyWith(walletOwns: true);
+        }
+
+        inputs.add(input);
+      }
+
+      // Parse outputs.
+      final List<OutputV2> outputs = [];
+      for (final outputJson in txData["vout"] as List) {
+        OutputV2 output = OutputV2.fromElectrumXJson(
+          Map<String, dynamic>.from(outputJson as Map),
+          decimalPlaces: cryptoCurrency.fractionDigits,
+          isFullAmountNotSats: true,
+          // Need addresses before we can know if the wallet owns this input.
+          walletOwns: false,
+        );
+
+        // If output was to my wallet, add value to amount received.
+        if (receivingAddresses
+            .intersection(output.addresses.toSet())
+            .isNotEmpty) {
+          wasReceivedInThisWallet = true;
+          amountReceivedInThisWallet += output.value;
+          output = output.copyWith(walletOwns: true);
+        } else if (changeAddresses
+            .intersection(output.addresses.toSet())
+            .isNotEmpty) {
+          wasReceivedInThisWallet = true;
+          changeAmountReceivedInThisWallet += output.value;
+          output = output.copyWith(walletOwns: true);
+        }
+
+        outputs.add(output);
+      }
+
+      final totalOut = outputs
+          .map((e) => e.value)
+          .fold(BigInt.zero, (value, element) => value + element);
+
+      TransactionType type;
+      TransactionSubType subType = TransactionSubType.none;
+
+      // At least one input was owned by this wallet.
+      if (wasSentFromThisWallet) {
+        type = TransactionType.outgoing;
+
+        if (wasReceivedInThisWallet) {
+          if (changeAmountReceivedInThisWallet + amountReceivedInThisWallet ==
+              totalOut) {
+            // Definitely sent all to self.
+            type = TransactionType.sentToSelf;
+          } else if (amountReceivedInThisWallet == BigInt.zero) {
+            // Most likely just a typical send, do nothing here yet.
+          }
+
+          // Particl has special outputs like confidential amounts.
+          // This is where we should check for them.
+          // TODO: [prio=high] Check for special Particl outputs.
+        }
+      } else if (wasReceivedInThisWallet) {
+        // Only found outputs owned by this wallet.
+        type = TransactionType.incoming;
+      } else {
+        Logging.instance.log(
+          "Unexpected tx found (ignoring it): $txData",
+          level: LogLevel.Error,
+        );
+        continue;
+      }
+
+      final tx = TransactionV2(
+        walletId: walletId,
+        blockHash: txData["blockhash"] as String?,
+        hash: txData["hash"] as String,
+        txid: txData["txid"] as String,
+        height: txData["height"] as int?,
+        version: txData["version"] as int,
+        timestamp: txData["blocktime"] as int? ??
+            DateTime.timestamp().millisecondsSinceEpoch ~/ 1000,
+        inputs: List.unmodifiable(inputs),
+        outputs: List.unmodifiable(outputs),
+        type: type,
+        subType: subType,
+        otherData: null,
+      );
+
+      txns.add(tx);
+    }
+
+    await mainDB.updateOrPutTransactionV2s(txns);
   }
 }