add lib spark local dep for testing

lib/wallets/wallet/wallet_mixin_interfaces/spark_interface.dart

@@ -1,8 +1,10 @@
 import 'dart:typed_data';
 
+import 'package:flutter_libsparkmobile/flutter_libsparkmobile.dart';
 import 'package:isar/isar.dart';
 import 'package:stackwallet/models/isar/models/blockchain_data/address.dart';
 import 'package:stackwallet/utilities/amount/amount.dart';
+import 'package:stackwallet/wallets/crypto_currency/crypto_currency.dart';
 import 'package:stackwallet/wallets/models/tx_data.dart';
 import 'package:stackwallet/wallets/wallet/intermediate/bip39_hd_wallet.dart';
 import 'package:stackwallet/wallets/wallet/wallet_mixin_interfaces/electrumx_interface.dart';
@@ -27,22 +29,28 @@ mixin SparkInterface on Bip39HDWallet, ElectrumXInterface {
     throw UnimplementedError();
   }
 
-  Future<Address> generateNextSparkAddress() async {
+  Future<Address> generateNextSparkAddress({int index = 1}) async {
     final highestStoredDiversifier =
         (await getCurrentReceivingSparkAddress())?.derivationIndex;
 
     // default to starting at 1 if none found
     final int diversifier = (highestStoredDiversifier ?? 0) + 1;
 
-    // TODO: use real data
-    final String derivationPath = "";
-    final Uint8List publicKey = Uint8List(0); // incomingViewKey?
-    final String addressString = "";
+    final root = await getRootHDNode();
+    final derivationPath = "$kSparkBaseDerivationPath$index";
+    final keys = root.derivePath(derivationPath);
+
+    final String addressString = await LibSpark.getAddress(
+      privateKey: keys.privateKey.data,
+      index: index,
+      diversifier: diversifier,
+      isTestNet: cryptoCurrency.network == CryptoCurrencyNetwork.test,
+    );
 
     return Address(
       walletId: walletId,
       value: addressString,
-      publicKey: publicKey,
+      publicKey: keys.publicKey.data,
       derivationIndex: diversifier,
       derivationPath: DerivationPath()..value = derivationPath,
       type: AddressType.spark,

linux/flutter/generated_plugin_registrant.cc

@@ -10,6 +10,7 @@
 #include <devicelocale/devicelocale_plugin.h>
 #include <flutter_libepiccash/flutter_libepiccash_plugin.h>
 #include <flutter_libmonero/flutter_libmonero_plugin.h>
+#include <flutter_libsparkmobile/flutter_libsparkmobile_plugin.h>
 #include <flutter_secure_storage_linux/flutter_secure_storage_linux_plugin.h>
 #include <isar_flutter_libs/isar_flutter_libs_plugin.h>
 #include <stack_wallet_backup/stack_wallet_backup_plugin.h>
@@ -29,6 +30,9 @@ void fl_register_plugins(FlPluginRegistry* registry) {
   g_autoptr(FlPluginRegistrar) flutter_libmonero_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterLibmoneroPlugin");
   flutter_libmonero_plugin_register_with_registrar(flutter_libmonero_registrar);
+  g_autoptr(FlPluginRegistrar) flutter_libsparkmobile_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterLibsparkmobilePlugin");
+  flutter_libsparkmobile_plugin_register_with_registrar(flutter_libsparkmobile_registrar);
   g_autoptr(FlPluginRegistrar) flutter_secure_storage_linux_registrar =
       fl_plugin_registry_get_registrar_for_plugin(registry, "FlutterSecureStorageLinuxPlugin");
   flutter_secure_storage_linux_plugin_register_with_registrar(flutter_secure_storage_linux_registrar);

linux/flutter/generated_plugins.cmake

@@ -7,6 +7,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   devicelocale
   flutter_libepiccash
   flutter_libmonero
+  flutter_libsparkmobile
   flutter_secure_storage_linux
   isar_flutter_libs
   stack_wallet_backup

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -13,6 +13,7 @@ import desktop_drop
 import device_info_plus
 import devicelocale
 import flutter_libepiccash
+import flutter_libsparkmobile
 import flutter_local_notifications
 import flutter_secure_storage_macos
 import isar_flutter_libs
@@ -34,6 +35,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   DevicelocalePlugin.register(with: registry.registrar(forPlugin: "DevicelocalePlugin"))
   FlutterLibepiccashPlugin.register(with: registry.registrar(forPlugin: "FlutterLibepiccashPlugin"))
+  FlutterLibsparkmobilePlugin.register(with: registry.registrar(forPlugin: "FlutterLibsparkmobilePlugin"))
   FlutterLocalNotificationsPlugin.register(with: registry.registrar(forPlugin: "FlutterLocalNotificationsPlugin"))
   FlutterSecureStoragePlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStoragePlugin"))
   IsarFlutterLibsPlugin.register(with: registry.registrar(forPlugin: "IsarFlutterLibsPlugin"))

pubspec.lock

@@ -659,6 +659,13 @@ packages:
       relative: true
     source: path
     version: "0.0.1"
+  flutter_libsparkmobile:
+    dependency: "direct main"
+    description:
+      path: "../flutter_libsparkmobile"
+      relative: true
+    source: path
+    version: "0.0.1"
   flutter_lints:
     dependency: "direct dev"
     description:

pubspec.yaml

@@ -27,6 +27,9 @@ dependencies:
   lelantus:
     path: ./crypto_plugins/flutter_liblelantus
 
+  flutter_libsparkmobile:
+    path: ../flutter_libsparkmobile
+
   flutter_libmonero:
     path: ./crypto_plugins/flutter_libmonero
 

windows/flutter/generated_plugin_registrant.cc

@@ -9,6 +9,7 @@
 #include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <desktop_drop/desktop_drop_plugin.h>
 #include <flutter_libepiccash/flutter_libepiccash_plugin_c_api.h>
+#include <flutter_libsparkmobile/flutter_libsparkmobile_plugin_c_api.h>
 #include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
 #include <isar_flutter_libs/isar_flutter_libs_plugin.h>
 #include <permission_handler_windows/permission_handler_windows_plugin.h>
@@ -24,6 +25,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("DesktopDropPlugin"));
   FlutterLibepiccashPluginCApiRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FlutterLibepiccashPluginCApi"));
+  FlutterLibsparkmobilePluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FlutterLibsparkmobilePluginCApi"));
   FlutterSecureStorageWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FlutterSecureStorageWindowsPlugin"));
   IsarFlutterLibsPluginRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -6,6 +6,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   connectivity_plus
   desktop_drop
   flutter_libepiccash
+  flutter_libsparkmobile
   flutter_secure_storage_windows
   isar_flutter_libs
   permission_handler_windows