Merge pull request #558 from fossephate/add-nano

nano - balance fixes, sync status works, transaction details page fixes

lib/models/isar/models/blockchain_data/address.dart

@@ -123,7 +123,8 @@ enum AddressType {
   mimbleWimble,
   unknown,
   nonWallet,
-  ethereum;
+  ethereum,
+  nano;
 
   String get readableName {
     switch (this) {
@@ -143,6 +144,8 @@ enum AddressType {
         return "Non wallet/unknown";
       case AddressType.ethereum:
         return "Ethereum";
+      case AddressType.nano:
+        return "Nano";
     }
   }
 }

lib/models/isar/models/blockchain_data/address.g.dart

@@ -261,6 +261,7 @@ const _AddresstypeEnumValueMap = {
   'unknown': 5,
   'nonWallet': 6,
   'ethereum': 7,
+  'nano': 8,
 };
 const _AddresstypeValueEnumMap = {
   0: AddressType.p2pkh,
@@ -271,6 +272,7 @@ const _AddresstypeValueEnumMap = {
   5: AddressType.unknown,
   6: AddressType.nonWallet,
   7: AddressType.ethereum,
+  8: AddressType.nano,
 };
 
 Id _addressGetId(Address object) {

lib/services/coins/nano/nano_wallet.dart

@@ -9,6 +9,8 @@ import 'package:stackwallet/models/isar/models/blockchain_data/transaction.dart'
 import 'package:stackwallet/models/isar/models/blockchain_data/utxo.dart';
 import 'package:stackwallet/models/paymint/fee_object_model.dart';
 import 'package:stackwallet/services/coins/coin_service.dart';
+import 'package:stackwallet/services/event_bus/events/global/wallet_sync_status_changed_event.dart';
+import 'package:stackwallet/services/event_bus/global_event_bus.dart';
 import 'package:stackwallet/services/mixins/coin_control_interface.dart';
 import 'package:stackwallet/services/mixins/wallet_cache.dart';
 import 'package:stackwallet/services/mixins/wallet_db.dart';
@@ -16,6 +18,7 @@ import 'package:stackwallet/utilities/amount/amount.dart';
 import 'package:stackwallet/utilities/enums/coin_enum.dart';
 import 'package:stackwallet/utilities/enums/log_level_enum.dart';
 import 'package:stackwallet/utilities/logger.dart';
+import 'package:tuple/tuple.dart';
 
 import '../../../db/isar/main_db.dart';
 import '../../../models/isar/models/blockchain_data/address.dart';
@@ -31,6 +34,8 @@ import 'dart:async';
 import 'package:stackwallet/models/isar/models/isar_models.dart';
 
 const int MINIMUM_CONFIRMATIONS = 1;
+const String DEFAULT_REPRESENTATIVE =
+    "nano_38713x95zyjsqzx6nm1dsom1jmm668owkeb9913ax6nfgj15az3nu8xkx579";
 
 class NanoWallet extends CoinServiceAPI
     with WalletCache, WalletDB, CoinControlInterface {
@@ -135,7 +140,7 @@ class NanoWallet extends CoinServiceAPI
   Future<String?> requestWork(String hash) async {
     return http
         .post(
-      Uri.parse("https://rpc.nano.to"),
+      Uri.parse("https://rpc.nano.to"), // this should be a
       headers: {'Content-type': 'application/json'},
       body: json.encode(
         {
@@ -177,8 +182,8 @@ class NanoWallet extends CoinServiceAPI
         headers: headers,
         body: balanceBody,
       );
-
       final balanceData = jsonDecode(balanceResponse.body);
+
       final BigInt currentBalance =
           BigInt.parse(balanceData["balance"].toString());
       final BigInt txAmount = txData["recipientAmt"].raw as BigInt;
@@ -270,7 +275,8 @@ class NanoWallet extends CoinServiceAPI
   @override
   Future<Amount> estimateFeeFor(Amount amount, int feeRate) {
     // fees are always 0 :)
-    return Future.value(Amount(rawValue: BigInt.from(0), fractionDigits: 7));
+    return Future.value(
+        Amount(rawValue: BigInt.from(0), fractionDigits: coin.decimals));
   }
 
   @override
@@ -295,19 +301,17 @@ class NanoWallet extends CoinServiceAPI
     final data = jsonDecode(response.body);
     _balance = Balance(
       total: Amount(
-          rawValue: (BigInt.parse(data["balance"]
-                  .toString()) /*+ BigInt.parse(data["receivable"].toString())*/) ~/
-              BigInt.from(10).pow(23),
-          fractionDigits: 7),
+          rawValue: (BigInt.parse(data["balance"].toString()) +
+              BigInt.parse(data["receivable"].toString())),
+          fractionDigits: coin.decimals),
       spendable: Amount(
-          rawValue: BigInt.parse(data["balance"].toString()) ~/
-              BigInt.from(10).pow(23),
-          fractionDigits: 7),
-      blockedTotal: Amount(rawValue: BigInt.parse("0"), fractionDigits: 30),
+          rawValue: BigInt.parse(data["balance"].toString()),
+          fractionDigits: coin.decimals),
+      blockedTotal:
+          Amount(rawValue: BigInt.parse("0"), fractionDigits: coin.decimals),
       pendingSpendable: Amount(
-          rawValue: BigInt.parse(data["receivable"].toString()) ~/
-              BigInt.from(10).pow(23),
-          fractionDigits: 7),
+          rawValue: BigInt.parse(data["receivable"].toString()),
+          fractionDigits: coin.decimals),
     );
     await updateCachedBalance(_balance!);
   }
@@ -317,17 +321,38 @@ class NanoWallet extends CoinServiceAPI
     // TODO: the opening block of an account is a special case
     bool openBlock = false;
 
+    final headers = {
+      "Content-Type": "application/json",
+    };
+
     // our address:
     final String publicAddress = await getAddressFromMnemonic();
 
+    // first check if the account is open:
+    // get the account info (we need the frontier and representative):
+    final infoBody = jsonEncode({
+      "action": "account_info",
+      "representative": "true",
+      "account": publicAddress,
+    });
+    final infoResponse = await http.post(
+      Uri.parse(getCurrentNode().host),
+      headers: headers,
+      body: infoBody,
+    );
+    final infoData = jsonDecode(infoResponse.body);
+
+    if (infoData["error"] != null) {
+      // account is not open yet, we need to create an open block:
+      openBlock = true;
+    }
+
     // first get the account balance:
     final balanceBody = jsonEncode({
       "action": "account_balance",
       "account": publicAddress,
     });
-    final headers = {
-      "Content-Type": "application/json",
-    };
+
     final balanceResponse = await http.post(
       Uri.parse(getCurrentNode().host),
       headers: headers,
@@ -340,21 +365,13 @@ class NanoWallet extends CoinServiceAPI
     final BigInt txAmount = BigInt.parse(amountRaw);
     final BigInt balanceAfterTx = currentBalance + txAmount;
 
-    // get the account info (we need the frontier and representative):
-    final infoBody = jsonEncode({
-      "action": "account_info",
-      "representative": "true",
-      "account": publicAddress,
-    });
-    final infoResponse = await http.post(
-      Uri.parse(getCurrentNode().host),
-      headers: headers,
-      body: infoBody,
-    );
+    String frontier = infoData["frontier"].toString();
+    String representative = infoData["representative"].toString();
 
-    String frontier = jsonDecode(infoResponse.body)["frontier"].toString();
-    final String representative =
-        jsonDecode(infoResponse.body)["representative"].toString();
+    if (openBlock) {
+      // we don't have a representative set yet:
+      representative = DEFAULT_REPRESENTATIVE;
+    }
 
     // link = send block hash:
     final String link = blockHash;
@@ -450,11 +467,12 @@ class NanoWallet extends CoinServiceAPI
 
   Future<void> updateTransactions() async {
     await confirmAllReceivable();
+    final String publicAddress = await getAddressFromMnemonic();
     final response = await http.post(Uri.parse(getCurrentNode().host),
         headers: {"Content-Type": "application/json"},
         body: jsonEncode({
           "action": "account_history",
-          "account": await getAddressFromMnemonic(),
+          "account": publicAddress,
           "count": "-1",
         }));
     final data = await jsonDecode(response.body);
@@ -462,14 +480,14 @@ class NanoWallet extends CoinServiceAPI
     if (transactions.isEmpty) {
       return;
     } else {
-      List<Transaction> transactionList = [];
+      List<Tuple2<Transaction, Address?>> transactionList = [];
       for (var tx in transactions) {
         var typeString = tx["type"].toString();
-        TransactionType type = TransactionType.unknown;
+        TransactionType transactionType = TransactionType.unknown;
         if (typeString == "send") {
-          type = TransactionType.outgoing;
+          transactionType = TransactionType.outgoing;
         } else if (typeString == "receive") {
-          type = TransactionType.incoming;
+          transactionType = TransactionType.incoming;
         }
         final amount = Amount(
           rawValue: BigInt.parse(tx["amount"].toString()),
@@ -477,25 +495,45 @@ class NanoWallet extends CoinServiceAPI
         );
 
         var transaction = Transaction(
-            walletId: walletId,
-            txid: tx["hash"].toString(),
-            timestamp: int.parse(tx["local_timestamp"].toString()),
-            type: type,
-            subType: TransactionSubType.none,
-            amount: 0,
-            amountString: amount.toJsonString(),
-            fee: 0,
-            height: int.parse(tx["height"].toString()),
-            isCancelled: false,
-            isLelantus: false,
-            slateId: "",
-            otherData: "",
-            inputs: [],
-            outputs: [],
-            nonce: 0);
-        transactionList.add(transaction);
+          walletId: walletId,
+          txid: tx["hash"].toString(),
+          timestamp: int.parse(tx["local_timestamp"].toString()),
+          type: transactionType,
+          subType: TransactionSubType.none,
+          amount: 0,
+          amountString: amount.toJsonString(),
+          fee: 0,
+          height: int.parse(tx["height"].toString()),
+          isCancelled: false,
+          isLelantus: false,
+          slateId: "",
+          otherData: "",
+          inputs: [],
+          outputs: [],
+          nonce: 0,
+        );
+
+        Address address = Address(
+          walletId: walletId,
+          publicKey: [],
+          value: transactionType == TransactionType.incoming
+              ? publicAddress
+              : tx["account"].toString(),
+          derivationIndex: 0,
+          derivationPath: null,
+          type: transactionType == TransactionType.incoming
+              ? AddressType.nonWallet
+              : AddressType.nano,
+          subType: transactionType == TransactionType.incoming
+              ? AddressSubType.receiving
+              : AddressSubType.nonWallet,
+        );
+        Tuple2<Transaction, Address> tuple = Tuple2(transaction, address);
+        transactionList.add(tuple);
       }
-      await db.putTransactions(transactionList);
+
+      await db.addNewTransactionData(transactionList, walletId);
+
       return;
     }
   }
@@ -504,8 +542,8 @@ class NanoWallet extends CoinServiceAPI
   Future<void> fullRescan(
       int maxUnusedAddressGap, int maxNumberOfIndexesToCheck) async {
     await _prefs.init();
-    await updateBalance();
     await updateTransactions();
+    await updateBalance();
   }
 
   @override
@@ -552,7 +590,7 @@ class NanoWallet extends CoinServiceAPI
       value: publicAddress,
       publicKey: [], // TODO: add public key
       derivationIndex: 0,
-      derivationPath: DerivationPath(),
+      derivationPath: null,
       type: AddressType.unknown,
       subType: AddressSubType.receiving,
     );
@@ -650,8 +688,7 @@ class NanoWallet extends CoinServiceAPI
         value: publicAddress,
         publicKey: [], // TODO: add public key
         derivationIndex: 0,
-        derivationPath: DerivationPath()
-          ..value = "0/0", // TODO: Check if this is true
+        derivationPath: null,
         type: AddressType.unknown,
         subType: AddressSubType.receiving,
       );
@@ -668,8 +705,36 @@ class NanoWallet extends CoinServiceAPI
   @override
   Future<void> refresh() async {
     await _prefs.init();
-    await updateBalance();
-    await updateTransactions();
+
+    GlobalEventBus.instance.fire(
+      WalletSyncStatusChangedEvent(
+        WalletSyncStatus.syncing,
+        walletId,
+        coin,
+      ),
+    );
+
+    try {
+      await updateChainHeight();
+      await updateTransactions();
+      await updateBalance();
+
+      GlobalEventBus.instance.fire(
+        WalletSyncStatusChangedEvent(
+          WalletSyncStatus.synced,
+          walletId,
+          coin,
+        ),
+      );
+    } catch (e) {
+      GlobalEventBus.instance.fire(
+        WalletSyncStatusChangedEvent(
+          WalletSyncStatus.unableToSync,
+          walletId,
+          coin,
+        ),
+      );
+    }
   }
 
   @override
@@ -723,4 +788,25 @@ class NanoWallet extends CoinServiceAPI
   bool validateAddress(String address) {
     return NanoAccounts.isValid(NanoAccountType.NANO, address);
   }
+
+  Future<void> updateChainHeight() async {
+    final String publicAddress = await getAddressFromMnemonic();
+    // first get the account balance:
+    final infoBody = jsonEncode({
+      "action": "account_info",
+      "account": publicAddress,
+    });
+    final headers = {
+      "Content-Type": "application/json",
+    };
+    final infoResponse = await http.post(
+      Uri.parse(getCurrentNode().host),
+      headers: headers,
+      body: infoBody,
+    );
+    final infoData = jsonDecode(infoResponse.body);
+
+    final int height = int.parse(infoData["confirmation_height"].toString());
+    await updateCachedChainHeight(height);
+  }
 }

lib/services/price.dart

@@ -90,7 +90,7 @@ class PriceAPI {
           Uri.parse("https://api.coingecko.com/api/v3/coins/markets?vs_currency"
               "=${baseCurrency.toLowerCase()}"
               "&ids=monero,bitcoin,litecoin,ecash,epic-cash,zcoin,dogecoin,"
-              "bitcoin-cash,namecoin,wownero,ethereum,particl"
+              "bitcoin-cash,namecoin,wownero,ethereum,particl,nano"
               "&order=market_cap_desc&per_page=50&page=1&sparkline=false");
 
       final coinGeckoResponse = await client.get(

lib/utilities/constants.dart

@@ -33,7 +33,7 @@ abstract class Constants {
       BigInt.parse("1000000000000000000000000000000");
   static final BigInt _satsPerCoin = BigInt.from(100000000);
   static const int _decimalPlaces = 8;
-  static const int _decimalPlacesNano = 6;
+  static const int _decimalPlacesNano = 30;
   static const int _decimalPlacesWownero = 11;
   static const int _decimalPlacesMonero = 12;
   static const int _decimalPlacesEthereum = 18;