text: // Copyright (c) 2014-2019, The Monero Project
  // Copyright (c)      2018, The Loki Project
  //
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without modification, are
  // permitted provided that the following conditions are met:
  //
  // 1. Redistributions of source code must retain the above copyright notice, this list of
  //    conditions and the following disclaimer.
  //
  // 2. Redistributions in binary form must reproduce the above copyright notice, this list
  //    of conditions and the following disclaimer in the documentation and/or other
  //    materials provided with the distribution.
  //
  // 3. Neither the name of the copyright holder nor the names of its contributors may be
  //    used to endorse or promote products derived from this software without specific
  //    prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
  
  #ifdef _WIN32
   #define __STDC_FORMAT_MACROS // NOTE(oxen): Explicitly define the PRIu64 macro on Mingw
  #endif
  
  #include "wallet.h"
  #include "pending_transaction.h"
  #include "unsigned_transaction.h"
  #include "stake_unlock_result.h"
  #include "transaction_history.h"
  #include "address_book.h"
  #include "subaddress.h"
  #include "subaddress_account.h"
  #include "common_defines.h"
  #include "common/util.h"
  #include "common/fs.h"
  
  #include "mnemonics/electrum-words.h"
  #include "mnemonics/english.h"
  #include <boost/format.hpp>
  #include <sstream>
  #include <unordered_map>
  #include <thread>
  
  using namespace cryptonote;
  
  #undef OXEN_DEFAULT_LOG_CATEGORY
  #define OXEN_DEFAULT_LOG_CATEGORY "WalletAPI"
  
  namespace Wallet {
  
  namespace {
      static const int    DEFAULT_REFRESH_INTERVAL_MILLIS = 1000 * 10;
      // limit maximum refresh interval as one minute
      static const int    MAX_REFRESH_INTERVAL_MILLIS = 1000 * 60 * 1;
      // Default refresh interval when connected to remote node
      static const int    DEFAULT_REMOTE_NODE_REFRESH_INTERVAL_MILLIS = 1000 * 10;
      // Connection timeout 30 sec
      static const int    DEFAULT_CONNECTION_TIMEOUT_MILLIS = 1000 * 30;
  
      fs::path get_default_ringdb_path(cryptonote::network_type nettype)
      {
        auto dir = tools::get_default_data_dir();
        // remove .oxen, replace with .shared-ringdb
        dir.replace_filename(".shared-ringdb");
        if (nettype == cryptonote::TESTNET)
          dir /= "testnet";
        else if (nettype == cryptonote::DEVNET)
          dir /= "devnet";
        return dir;
      }
  
      void checkMultisigWalletReady(const tools::wallet2* wallet) {
          if (!wallet)
              throw std::runtime_error("Wallet is not initialized yet");
  
          bool ready;
          if (!wallet->multisig(&ready))
              throw std::runtime_error("Wallet is not multisig");
  
          if (!ready)
              throw std::runtime_error("Multisig wallet is not finalized yet");
      }
      void checkMultisigWalletReady(const std::unique_ptr<tools::wallet2> &wallet) {
          return checkMultisigWalletReady(wallet.get());
      }
  
      void checkMultisigWalletNotReady(const tools::wallet2* wallet) {
          if (!wallet)
              throw std::runtime_error("Wallet is not initialized yet");
  
          bool ready;
          if (!wallet->multisig(&ready))
              throw std::runtime_error("Wallet is not multisig");
  
          if (ready)
              throw std::runtime_error("Multisig wallet is already finalized");
      }
      void checkMultisigWalletNotReady(const std::unique_ptr<tools::wallet2> &wallet) {
          return checkMultisigWalletNotReady(wallet.get());
      }
  }
  
  struct Wallet2CallbackImpl : public tools::i_wallet2_callback
  {
  
      EXPORT
      Wallet2CallbackImpl(WalletImpl * wallet)
       : m_listener(nullptr)
       , m_wallet(wallet)
      {
  
      }
  
      EXPORT
      ~Wallet2CallbackImpl()
      {
  
      }
  
      EXPORT
      void setListener(WalletListener * listener)
      {
          m_listener = listener;
      }
  
      EXPORT
      WalletListener * getListener() const
      {
          return m_listener;
      }
  
      EXPORT
      void on_new_block(uint64_t height, const cryptonote::block& block) override
      {
          // Don't flood the GUI with signals. On fast refresh - send signal every 1000th block
          // get_refresh_from_block_height() returns the blockheight from when the wallet was 
          // created or the restore height specified when wallet was recovered
          if(height >= m_wallet->m_wallet->get_refresh_from_block_height() || height % 1000 == 0) {
              // LOG_PRINT_L3(__FUNCTION__ << ": new block. height: " << height);
              if (m_listener) {
                  m_listener->newBlock(height);
              }
          }
      }
  
      EXPORT
      void on_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount, const cryptonote::subaddress_index& subaddr_index, uint64_t unlock_time, bool blink) override
      {
          std::string tx_hash = tools::type_to_hex(txid);
  
          LOG_PRINT_L3(__FUNCTION__ << ": money received." << (blink ? "blink: " : "height: ") << height
                       << ", tx: " << tx_hash
                       << ", amount: " << print_money(amount)
                       << ", idx: " << subaddr_index);
          // do not signal on received tx if wallet is not syncronized completely
          if (m_listener && m_wallet->synchronized()) {
              m_listener->moneyReceived(tx_hash, amount);
              m_listener->updated();
          }
      }
  
      EXPORT
      void on_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount, const cryptonote::subaddress_index& subaddr_index) override
      {
  
          std::string tx_hash = tools::type_to_hex(txid);
  
          LOG_PRINT_L3(__FUNCTION__ << ": unconfirmed money received. height:  " << height
                       << ", tx: " << tx_hash
                       << ", amount: " << print_money(amount)
                       << ", idx: " << subaddr_index);
          // do not signal on received tx if wallet is not syncronized completely
          if (m_listener && m_wallet->synchronized()) {
              m_listener->unconfirmedMoneyReceived(tx_hash, amount);
              m_listener->updated();
          }
      }
  
      EXPORT
      void on_money_spent(uint64_t height,
                          const crypto::hash &txid,
                          const cryptonote::transaction &in_tx,
                          uint64_t amount,
                          const cryptonote::transaction &spend_tx,
                          const cryptonote::subaddress_index &subaddr_index) override
      {
          // TODO;
          std::string tx_hash = tools::type_to_hex(txid);
          LOG_PRINT_L3(__FUNCTION__ << ": money spent. height:  " << height
                       << ", tx: " << tx_hash
                       << ", amount: " << print_money(amount)
                       << ", idx: " << subaddr_index);
          // do not signal on sent tx if wallet is not syncronized completely
          if (m_listener && m_wallet->synchronized()) {
              m_listener->moneySpent(tx_hash, amount);
              m_listener->updated();
          }
      }
  
      EXPORT
      void on_skip_transaction(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx) override
      {
          // TODO;
      }
  
      // Light wallet callbacks
      EXPORT
      void on_lw_new_block(uint64_t height) override
      {
        if (m_listener) {
          m_listener->newBlock(height);
        }
      }
  
      EXPORT
      void on_lw_money_received(uint64_t height, const crypto::hash &txid, uint64_t amount) override
      {
        if (m_listener) {
          std::string tx_hash = tools::type_to_hex(txid);
          m_listener->moneyReceived(tx_hash, amount);
        }
      }
  
      EXPORT
      void on_lw_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, uint64_t amount) override
      {
        if (m_listener) {
          std::string tx_hash = tools::type_to_hex(txid);
          m_listener->unconfirmedMoneyReceived(tx_hash, amount);
        }
      }
  
      EXPORT
      void on_lw_money_spent(uint64_t height, const crypto::hash &txid, uint64_t amount) override
      {
        if (m_listener) {
          std::string tx_hash = tools::type_to_hex(txid);
          m_listener->moneySpent(tx_hash, amount);
        }
      }
  
      EXPORT
      void on_device_button_request(uint64_t code) override
      {
        if (m_listener) {
          m_listener->onDeviceButtonRequest(code);
        }
      }
  
      EXPORT
      void on_device_button_pressed() override
      {
        if (m_listener) {
          m_listener->onDeviceButtonPressed();
        }
      }
  
      EXPORT
      std::optional<epee::wipeable_string> on_device_pin_request() override
      {
        if (m_listener) {
          auto pin = m_listener->onDevicePinRequest();
          if (pin){
            return std::make_optional(epee::wipeable_string(pin->data(), pin->size()));
          }
        }
        return std::nullopt;
      }
  
      EXPORT
      std::optional<epee::wipeable_string> on_device_passphrase_request(bool& on_device) override
      {
        if (m_listener) {
          auto passphrase = m_listener->onDevicePassphraseRequest(on_device);
          if (passphrase) {
            return std::make_optional(epee::wipeable_string(passphrase->data(), passphrase->size()));
          }
        } else {
          on_device = true;
        }
        return std::nullopt;
      }
  
      EXPORT
      void on_device_progress(const hw::device_progress & event) override
      {
        if (m_listener) {
          m_listener->onDeviceProgress(DeviceProgress(event.progress(), event.indeterminate()));
        }
      }
  
      WalletListener * m_listener;
      WalletImpl     * m_wallet;
  };
  
  EXPORT
  Wallet::~Wallet() {}
  
  EXPORT
  WalletListener::~WalletListener() {}
  
  
  EXPORT
  std::string Wallet::displayAmount(uint64_t amount)
  {
      return cryptonote::print_money(amount);
  }
  
  EXPORT
  uint64_t Wallet::amountFromString(const std::string &amount)
  {
      uint64_t result = 0;
      cryptonote::parse_amount(result, amount);
      return result;
  }
  
  EXPORT
  uint64_t Wallet::amountFromDouble(double amount)
  {
      std::stringstream ss;
      ss << std::fixed << std::setprecision(CRYPTONOTE_DISPLAY_DECIMAL_POINT) << amount;
      return amountFromString(ss.str());
  }
  
  EXPORT
  std::string Wallet::genPaymentId()
  {
      crypto::hash8 payment_id = crypto::rand<crypto::hash8>();
      return tools::type_to_hex(payment_id);
  
  }
  
  EXPORT
  bool Wallet::paymentIdValid(const std::string &payment_id)
  {
      return payment_id.size() == 16 && oxenmq::is_hex(payment_id);
  }
  
  EXPORT
  bool Wallet::serviceNodePubkeyValid(const std::string &str)
  {
      crypto::public_key sn_key;
      return str.size() == 64 && oxenmq::is_hex(str);
  }
  
  EXPORT
  bool Wallet::addressValid(const std::string &str, NetworkType nettype)
  {
    cryptonote::address_parse_info info;
    return get_account_address_from_str(info, static_cast<cryptonote::network_type>(nettype), str);
  }
  
  EXPORT
  bool Wallet::keyValid(const std::string &secret_key_string, const std::string &address_string, bool isViewKey, NetworkType nettype, std::string &error)
  {
    cryptonote::address_parse_info info;
    if(!get_account_address_from_str(info, static_cast<cryptonote::network_type>(nettype), address_string)) {
        error = tr("Failed to parse address");
        return false;
    }
    
    cryptonote::blobdata key_data;
    if(!epee::string_tools::parse_hexstr_to_binbuff(secret_key_string, key_data) || key_data.size() != sizeof(crypto::secret_key))
    {
        error = tr("Failed to parse key");
        return false;
    }
    crypto::secret_key key = *reinterpret_cast<const crypto::secret_key*>(key_data.data());
  
    // check the key match the given address
    crypto::public_key pkey;
    if (!crypto::secret_key_to_public_key(key, pkey)) {
        error = tr("failed to verify key");
        return false;
    }
    bool matchAddress = false;
    if(isViewKey)
        matchAddress = info.address.m_view_public_key == pkey;
    else
        matchAddress = info.address.m_spend_public_key == pkey;
  
    if(!matchAddress) {
        error = tr("key does not match address");
        return false;
    }
    
    return true;
  }
  
  EXPORT
  std::string Wallet::paymentIdFromAddress(const std::string &str, NetworkType nettype)
  {
    cryptonote::address_parse_info info;
    if (!get_account_address_from_str(info, static_cast<cryptonote::network_type>(nettype), str))
      return "";
    if (!info.has_payment_id)
      return "";
    return tools::type_to_hex(info.payment_id);
  }
  
  EXPORT
  uint64_t Wallet::maximumAllowedAmount()
  {
      return std::numeric_limits<uint64_t>::max();
  }
  
  EXPORT
  void Wallet::init(const char *argv0, const char *default_log_base_name, const std::string& log_path, bool console) {
      epee::string_tools::set_module_name_and_folder(argv0);
      mlog_configure(log_path.empty() ? mlog_get_default_log_path(default_log_base_name) : log_path, console);
  }
  
  EXPORT
  void Wallet::debug(const std::string &category, const std::string &str) {
      MCDEBUG(category.empty() ? OXEN_DEFAULT_LOG_CATEGORY : category.c_str(), str);
  }
  
  EXPORT
  void Wallet::info(const std::string &category, const std::string &str) {
      MCINFO(category.empty() ? OXEN_DEFAULT_LOG_CATEGORY : category.c_str(), str);
  }
  
  EXPORT
  void Wallet::warning(const std::string &category, const std::string &str) {
      MCWARNING(category.empty() ? OXEN_DEFAULT_LOG_CATEGORY : category.c_str(), str);
  }
  
  EXPORT
  void Wallet::error(const std::string &category, const std::string &str) {
      MCERROR(category.empty() ? OXEN_DEFAULT_LOG_CATEGORY : category.c_str(), str);
  }
  
  ///////////////////////// WalletImpl implementation ////////////////////////
  EXPORT
  WalletImpl::WalletImpl(NetworkType nettype, uint64_t kdf_rounds)
      :m_wallet(nullptr)
      , m_status(Wallet::Status_Ok, "")
      , m_wallet2Callback(nullptr)
      , m_recoveringFromSeed(false)
      , m_recoveringFromDevice(false)
      , m_synchronized(false)
      , m_rebuildWalletCache(false)
      , m_is_connected(false)
      , m_refreshShouldRescan(false)
  {
      m_wallet.reset(new tools::wallet2(static_cast<cryptonote::network_type>(nettype), kdf_rounds, true));
      m_history.reset(new TransactionHistoryImpl(this));
      m_wallet2Callback.reset(new Wallet2CallbackImpl(this));
      m_wallet->callback(m_wallet2Callback.get());
      m_refreshThreadDone = false;
      m_refreshEnabled = false;
      m_addressBook.reset(new AddressBookImpl(this));
      m_subaddress.reset(new SubaddressImpl(this));
      m_subaddressAccount.reset(new SubaddressAccountImpl(this));
  
  
      m_refreshIntervalMillis = DEFAULT_REFRESH_INTERVAL_MILLIS;
  
      m_refreshThread = std::thread([this] () { refreshThreadFunc(); });
  
      m_longPollThread = std::thread([this]() {
        for (;;)
        {
          if (m_wallet->m_long_poll_disabled)
            return true;
          try {
            if (m_refreshEnabled && m_wallet->long_poll_pool_state())
              m_refreshCV.notify_one();
          } catch (...) { /* ignore */ }
  
          std::this_thread::sleep_for(std::chrono::seconds(1));
        }
      });
  }
  
  EXPORT
  WalletImpl::~WalletImpl()
  {
  
      LOG_PRINT_L1(__FUNCTION__);
      m_wallet->callback(NULL);
      // Pause refresh thread - prevents refresh from starting again
      pauseRefresh();
      // Close wallet - stores cache and stops ongoing refresh operation 
      close(false); // do not store wallet as part of the closing activities
      // Stop refresh thread
      stopRefresh();
  
      m_wallet->cancel_long_poll();
      if (m_longPollThread.joinable())
        m_longPollThread.join();
  
      if (m_wallet2Callback->getListener()) {
        m_wallet2Callback->getListener()->onSetWallet(nullptr);
      }
  
      LOG_PRINT_L1(__FUNCTION__ << " finished");
  }
  
  EXPORT
  bool WalletImpl::create(std::string_view path_, const std::string &password, const std::string &language)
  {
  
      auto path = fs::u8path(path_);
      clearStatus();
      m_recoveringFromSeed = false;
      m_recoveringFromDevice = false;
      bool keys_file_exists;
      bool wallet_file_exists;
      tools::wallet2::wallet_exists(path, keys_file_exists, wallet_file_exists);
      LOG_PRINT_L3("wallet_path: " << path);
      LOG_PRINT_L3("keys_file_exists: " << std::boolalpha << keys_file_exists << std::noboolalpha
                   << "  wallet_file_exists: " << std::boolalpha << wallet_file_exists << std::noboolalpha);
  
  
      // add logic to error out if new wallet requested but named wallet file exists
      if (keys_file_exists || wallet_file_exists) {
          std::string error = "attempting to generate or restore wallet, but specified file(s) exist.  Exiting to not risk overwriting.";
          LOG_ERROR(error);
          setStatusCritical(error);
          return false;
      }
      // TODO: validate language
      m_wallet->set_seed_language(language);
      crypto::secret_key recovery_val, secret_key;
      try {
          recovery_val = m_wallet->generate(path, password, secret_key, false, false);
          m_password = password;
          clearStatus();
      } catch (const std::exception &e) {
          LOG_ERROR("Error creating wallet: " << e.what());
          setStatusCritical(e.what());
          return false;
      }
  
      return true;
  }
  
  EXPORT
  bool WalletImpl::createWatchOnly(std::string_view path_, const std::string &password, const std::string &language) const
  {
      auto path = fs::u8path(path_);
      clearStatus();
      std::unique_ptr<tools::wallet2> view_wallet(new tools::wallet2(m_wallet->nettype()));
  
      // Store same refresh height as original wallet
      view_wallet->set_refresh_from_block_height(m_wallet->get_refresh_from_block_height());
  
      bool keys_file_exists;
      bool wallet_file_exists;
      tools::wallet2::wallet_exists(path, keys_file_exists, wallet_file_exists);
      LOG_PRINT_L3("wallet_path: " << path);
      LOG_PRINT_L3("keys_file_exists: " << std::boolalpha << keys_file_exists << std::noboolalpha
                   << "  wallet_file_exists: " << std::boolalpha << wallet_file_exists << std::noboolalpha);
  
      // add logic to error out if new wallet requested but named wallet file exists
      if (keys_file_exists || wallet_file_exists) {
          std::string error = "attempting to generate view only wallet, but specified file(s) exist.  Exiting to not risk overwriting.";
          LOG_ERROR(error);
          setStatusError(error);
          return false;
      }
      // TODO: validate language
      view_wallet->set_seed_language(language);
  
      const crypto::secret_key viewkey = m_wallet->get_account().get_keys().m_view_secret_key;
      const cryptonote::account_public_address address = m_wallet->get_account().get_keys().m_account_address;
  
      try {
          // Generate view only wallet
          view_wallet->generate(path, password, address, viewkey);
  
          // Export/Import outputs
          auto outputs = m_wallet->export_outputs();
          view_wallet->import_outputs(outputs);
  
          // Copy scanned blockchain
          auto bc = m_wallet->export_blockchain();
          view_wallet->import_blockchain(bc);
  
          // copy payments
          auto payments = m_wallet->export_payments();
          view_wallet->import_payments(payments);
  
          // copy confirmed outgoing payments
          std::list<std::pair<crypto::hash, tools::wallet2::confirmed_transfer_details>> out_payments;
          m_wallet->get_payments_out(out_payments, 0);
          view_wallet->import_payments_out(out_payments);
  
          // Export/Import key images
          // We already know the spent status from the outputs we exported, thus no need to check them again
          auto key_images = m_wallet->export_key_images(false /* requested_ki_only */);
          uint64_t spent = 0;
          uint64_t unspent = 0;
          view_wallet->import_key_images(key_images.second, key_images.first, spent, unspent, false);
          clearStatus();
      } catch (const std::exception &e) {
          LOG_ERROR("Error creating view only wallet: " << e.what());
          setStatusError(e.what());
          return false;
      }
      // Store wallet
      view_wallet->store();
      return true;
  }
  
  EXPORT
  bool WalletImpl::recoverFromKeysWithPassword(std::string_view path_,
                                   const std::string &password,
                                   const std::string &language,
                                   const std::string &address_string,
                                   const std::string &viewkey_string,
                                   const std::string &spendkey_string)
  {
      auto path = fs::u8path(path_);
      cryptonote::address_parse_info info;
      if(!get_account_address_from_str(info, m_wallet->nettype(), address_string))
      {
          setStatusError(tr("failed to parse address"));
          return false;
      }
  
      // parse optional spend key
      crypto::secret_key spendkey;
      bool has_spendkey = false;
      if (!spendkey_string.empty()) {
          cryptonote::blobdata spendkey_data;
          if(!epee::string_tools::parse_hexstr_to_binbuff(spendkey_string, spendkey_data) || spendkey_data.size() != sizeof(crypto::secret_key))
          {
              setStatusError(tr("failed to parse secret spend key"));
              return false;
          }
          has_spendkey = true;
          spendkey = *reinterpret_cast<const crypto::secret_key*>(spendkey_data.data());
      }
  
      // parse view secret key
      bool has_viewkey = true;
      crypto::secret_key viewkey;
      if (viewkey_string.empty()) {
          if(has_spendkey) {
            has_viewkey = false;
          }
          else {
            setStatusError(tr("Neither view key nor spend key supplied, cancelled"));
            return false;
          }
      }
      if(has_viewkey) {
        cryptonote::blobdata viewkey_data;
        if(!epee::string_tools::parse_hexstr_to_binbuff(viewkey_string, viewkey_data) || viewkey_data.size() != sizeof(crypto::secret_key))
        {
            setStatusError(tr("failed to parse secret view key"));
            return false;
        }
        viewkey = *reinterpret_cast<const crypto::secret_key*>(viewkey_data.data());
      }
      // check the spend and view keys match the given address
      crypto::public_key pkey;
      if(has_spendkey) {
          if (!crypto::secret_key_to_public_key(spendkey, pkey)) {
              setStatusError(tr("failed to verify secret spend key"));
              return false;
          }
          if (info.address.m_spend_public_key != pkey) {
              setStatusError(tr("spend key does not match address"));
              return false;
          }
      }
      if(has_viewkey) {
         if (!crypto::secret_key_to_public_key(viewkey, pkey)) {
             setStatusError(tr("failed to verify secret view key"));
             return false;
         }
         if (info.address.m_view_public_key != pkey) {
             setStatusError(tr("view key does not match address"));
             return false;
         }
      }
  
      try
      {
          if (has_spendkey && has_viewkey) {
              m_wallet->generate(path, password, info.address, spendkey, viewkey);
              LOG_PRINT_L1("Generated new wallet from spend key and view key");
          }
          if(!has_spendkey && has_viewkey) {
              m_wallet->generate(path, password, info.address, viewkey);
              LOG_PRINT_L1("Generated new view only wallet from keys");
          }
          if(has_spendkey && !has_viewkey) {
             m_wallet->generate(path, password, spendkey, true, false);
             setSeedLanguage(language);
             LOG_PRINT_L1("Generated deterministic wallet from spend key with seed language: " + language);
          }
          
      }
      catch (const std::exception& e) {
          setStatusError(std::string(tr("failed to generate new wallet: ")) + e.what());
          return false;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::recoverFromDevice(std::string_view path_, const std::string &password, const std::string &device_name)
  {
      auto path = fs::u8path(path_);
      clearStatus();
      m_recoveringFromSeed = false;
      m_recoveringFromDevice = true;
      try
      {
          m_wallet->restore_from_device(path, password, device_name);
          LOG_PRINT_L1("Generated new wallet from device: " + device_name);
      }
      catch (const std::exception& e) {
          setStatusError(std::string(tr("failed to generate new wallet: ")) + e.what());
          return false;
      }
      return true;
  }
  
  EXPORT
  Wallet::Device WalletImpl::getDeviceType() const
  {
      return static_cast<Wallet::Device>(m_wallet->get_device_type());
  }
  
  EXPORT
  bool WalletImpl::open(std::string_view path_, const std::string &password)
  {
      auto path = fs::u8path(path_);
      clearStatus();
      m_recoveringFromSeed = false;
      m_recoveringFromDevice = false;
      try {
          // TODO: handle "deprecated"
          // Check if wallet cache exists
          bool keys_file_exists;
          bool wallet_file_exists;
          tools::wallet2::wallet_exists(path, keys_file_exists, wallet_file_exists);
          if(!wallet_file_exists){
              // Rebuilding wallet cache, using refresh height from .keys file
              m_rebuildWalletCache = true;
          }
          m_wallet->set_ring_database(get_default_ringdb_path(m_wallet->nettype()));
          m_wallet->load(path, password);
  
          m_password = password;
      } catch (const std::exception &e) {
          LOG_ERROR("Error opening wallet: " << e.what());
          setStatusCritical(e.what());
      }
      return good();
  }
  
  EXPORT
  bool WalletImpl::recover(std::string_view path_, const std::string &password, const std::string &seed, const std::string &seed_offset/* = {}*/)
  {
      auto path = fs::u8path(path_);
      clearStatus();
      if (seed.empty()) {
          LOG_ERROR("Electrum seed is empty");
          setStatusError(tr("Electrum seed is empty"));
          return false;
      }
  
      m_recoveringFromSeed = true;
      m_recoveringFromDevice = false;
      crypto::secret_key recovery_key;
      std::string old_language;
      if (!crypto::ElectrumWords::words_to_bytes(seed, recovery_key, old_language)) {
          setStatusError(tr("Electrum-style word list failed verification"));
          return false;
      }
      if (!seed_offset.empty())
      {
          recovery_key = cryptonote::decrypt_key(recovery_key, seed_offset);
      }
  
      if (old_language == crypto::ElectrumWords::old_language_name)
          old_language = Language::English().get_language_name();
  
      try {
          m_wallet->set_seed_language(old_language);
          m_wallet->generate(path, password, recovery_key, true, false);
  
      } catch (const std::exception &e) {
          setStatusCritical(e.what());
      }
      return good();
  }
  
  EXPORT
  bool WalletImpl::close(bool store)
  {
  
      bool result = false;
      LOG_PRINT_L1("closing wallet...");
      try {
          if (store) {
              // Do not store wallet with invalid status
              // Status Critical refers to errors on opening or creating wallets.
              if (status().first != Status_Critical)
                  m_wallet->store();
              else
                  LOG_ERROR("Status_Critical - not saving wallet");
              LOG_PRINT_L1("wallet::store done");
          }
          LOG_PRINT_L1("Calling wallet::stop...");
          m_wallet->stop();
          LOG_PRINT_L1("wallet::stop done");
          m_wallet->deinit();
          result = true;
          clearStatus();
      } catch (const std::exception &e) {
          setStatusCritical(e.what());
          LOG_ERROR("Error closing wallet: " << e.what());
      }
      return result;
  }
  
  EXPORT
  std::string WalletImpl::seed() const
  {
      epee::wipeable_string seed;
      if (m_wallet)
          m_wallet->get_seed(seed);
      return std::string(seed.data(), seed.size()); // TODO
  }
  
  EXPORT
  std::string WalletImpl::getSeedLanguage() const
  {
      return m_wallet->get_seed_language();
  }
  
  EXPORT
  void WalletImpl::setSeedLanguage(const std::string &arg)
  {
      m_wallet->set_seed_language(arg);
  }
  
  EXPORT
  std::pair<int, std::string> WalletImpl::status() const {
      std::lock_guard l{m_statusMutex};
      return m_status;
  }
  EXPORT
  bool WalletImpl::good() const {
      std::lock_guard l{m_statusMutex};
      return m_status.first == Status_Ok;
  }
  
  EXPORT
  bool WalletImpl::setPassword(const std::string &password)
  {
      clearStatus();
      try {
          m_wallet->change_password(m_wallet->get_wallet_file(), m_password, password);
          m_password = password;
      } catch (const std::exception &e) {
          setStatusError(e.what());
      }
      return good();
  }
  
  EXPORT
  bool WalletImpl::setDevicePin(const std::string &pin)
  {
      clearStatus();
      try {
          m_wallet->get_account().get_device().set_pin(epee::wipeable_string(pin.data(), pin.size()));
      } catch (const std::exception &e) {
          setStatusError(e.what());
      }
      return good();
  }
  
  EXPORT
  bool WalletImpl::setDevicePassphrase(const std::string &passphrase)
  {
      clearStatus();
      try {
          m_wallet->get_account().get_device().set_passphrase(epee::wipeable_string(passphrase.data(), passphrase.size()));
      } catch (const std::exception &e) {
          setStatusError(e.what());
      }
      return good();
  }
  
  EXPORT
  std::string WalletImpl::address(uint32_t accountIndex, uint32_t addressIndex) const
  {
      return m_wallet->get_subaddress_as_str({accountIndex, addressIndex});
  }
  
  EXPORT
  std::string WalletImpl::integratedAddress(const std::string &payment_id) const
  {
      crypto::hash8 pid;
      if (!tools::hex_to_type(payment_id, pid))
          return "";
      return m_wallet->get_integrated_address_as_str(pid);
  }
  
  EXPORT
  std::string WalletImpl::secretViewKey() const
  {
      return tools::type_to_hex(m_wallet->get_account().get_keys().m_view_secret_key);
  }
  
  EXPORT
  std::string WalletImpl::publicViewKey() const
  {
      return tools::type_to_hex(m_wallet->get_account().get_keys().m_account_address.m_view_public_key);
  }
  
  EXPORT
  std::string WalletImpl::secretSpendKey() const
  {
      return tools::type_to_hex(m_wallet->get_account().get_keys().m_spend_secret_key);
  }
  
  EXPORT
  std::string WalletImpl::publicSpendKey() const
  {
      return tools::type_to_hex(m_wallet->get_account().get_keys().m_account_address.m_spend_public_key);
  }
  
  EXPORT
  std::string WalletImpl::publicMultisigSignerKey() const
  {
      try {
          crypto::public_key signer = m_wallet->get_multisig_signer_public_key();
          return tools::type_to_hex(signer);
      } catch (const std::exception&) {
          return "";
      }
  }
  
  EXPORT
  std::string WalletImpl::path() const
  {
      return m_wallet->path().u8string();
  }
  
  EXPORT
  bool WalletImpl::store(std::string_view path_)
  {
      auto path = fs::u8path(path_);
      clearStatus();
      try {
          if (path.empty()) {
              m_wallet->store();
          } else {
              m_wallet->store_to(path, m_password);
          }
      } catch (const std::exception &e) {
          LOG_ERROR("Error saving wallet: " << e.what());
          setStatusError(e.what());
          return false;
      }
  
      return true;
  }
  
  EXPORT
  std::string WalletImpl::filename() const
  {
      return m_wallet->get_wallet_file().u8string();
  }
  
  EXPORT
  std::string WalletImpl::keysFilename() const
  {
      return m_wallet->get_keys_file().u8string();
  }
  
  EXPORT
  bool WalletImpl::init(const std::string &daemon_address, uint64_t upper_transaction_size_limit, const std::string &daemon_username, const std::string &daemon_password, bool use_ssl, bool lightWallet)
  {
      clearStatus();
      m_wallet->set_light_wallet(lightWallet);
      if(daemon_username != "")
          m_daemon_login.emplace(daemon_username, daemon_password);
      return doInit(daemon_address, upper_transaction_size_limit, use_ssl);
  }
  
  EXPORT
  bool WalletImpl::lightWalletLogin(bool &isNewWallet) const
  {
    return m_wallet->light_wallet_login(isNewWallet);
  }
  
  EXPORT
  bool WalletImpl::lightWalletImportWalletRequest(std::string &payment_id, uint64_t &fee, bool &new_request, bool &request_fulfilled, std::string &payment_address, std::string &status)
  {
    try
    {
      tools::light_rpc::IMPORT_WALLET_REQUEST::response response{};
      if(!m_wallet->light_wallet_import_wallet_request(response)){
        setStatusError(tr("Failed to send import wallet request"));
        return false;
      }
      fee = response.import_fee;
      payment_id = response.payment_id;
      new_request = response.new_request;
      request_fulfilled = response.request_fulfilled;
      payment_address = response.payment_address;
      status = response.status;
    }
    catch (const std::exception &e)
    {
      LOG_ERROR("Error sending import wallet request: " << e.what());
      setStatusError(e.what());
      return false;
    }
    return true;
  }
  
  EXPORT
  void WalletImpl::setRefreshFromBlockHeight(uint64_t refresh_from_block_height)
  {
      m_wallet->set_refresh_from_block_height(refresh_from_block_height);
  }
  
  EXPORT
  void WalletImpl::setRecoveringFromSeed(bool recoveringFromSeed)
  {
      m_recoveringFromSeed = recoveringFromSeed;
  }
  
  EXPORT
  void WalletImpl::setRecoveringFromDevice(bool recoveringFromDevice)
  {
      m_recoveringFromDevice = recoveringFromDevice;
  }
  
  EXPORT
  void WalletImpl::setSubaddressLookahead(uint32_t major, uint32_t minor)
  {
      m_wallet->set_subaddress_lookahead(major, minor);
  }
  
  EXPORT
  uint64_t WalletImpl::balance(uint32_t accountIndex) const
  {
      return m_wallet->balance(accountIndex, false);
  }
  
  EXPORT
  uint64_t WalletImpl::unlockedBalance(uint32_t accountIndex) const
  {
      return m_wallet->unlocked_balance(accountIndex, false);
  }
  
  EXPORT
  std::vector<std::pair<std::string, uint64_t>>* WalletImpl::listCurrentStakes() const
  {
      std::vector<std::pair<std::string, uint64_t>>* stakes = new std::vector<std::pair<std::string, uint64_t>>;
  
      auto response = m_wallet->list_current_stakes();
  
      for (rpc::GET_SERVICE_NODES::response::entry const &node_info : response)
      {
          for (const auto& contributor : node_info.contributors)
          {
              stakes->push_back(std::make_pair(node_info.service_node_pubkey, contributor.amount));
          }
      }
      return stakes;
  }
  
  EXPORT
  uint64_t WalletImpl::blockChainHeight() const
  {
      if(m_wallet->light_wallet()) {
          return m_wallet->get_light_wallet_scanned_block_height();
      }
      return m_wallet->get_blockchain_current_height();
  }
  EXPORT
  uint64_t WalletImpl::approximateBlockChainHeight() const
  {
      return m_wallet->get_approximate_blockchain_height();
  }
  
  EXPORT
  uint64_t WalletImpl::estimateBlockChainHeight() const
  {
      return m_wallet->estimate_blockchain_height();
  }
  
  EXPORT
  uint64_t WalletImpl::daemonBlockChainHeight() const
  {
      if(m_wallet->light_wallet()) {
          return m_wallet->get_light_wallet_scanned_block_height();
      }
      if (!m_is_connected)
          return 0;
      std::string err;
      uint64_t result = m_wallet->get_daemon_blockchain_height(err);
      if (!err.empty()) {
          LOG_ERROR(__FUNCTION__ << ": " << err);
          result = 0;
          setStatusError(err);
      } else {
          clearStatus();
      }
      return result;
  }
  
  EXPORT
  uint64_t WalletImpl::daemonBlockChainTargetHeight() const
  {
      if(m_wallet->light_wallet()) {
          return m_wallet->get_light_wallet_blockchain_height();
      }
      if (!m_is_connected)
          return 0;
      std::string err;
      uint64_t result = m_wallet->get_daemon_blockchain_target_height(err);
      if (!err.empty()) {
          LOG_ERROR(__FUNCTION__ << ": " << err);
          result = 0;
          setStatusError(err);
      } else {
          clearStatus();
      }
      // Target height can be 0 when daemon is synced. Use blockchain height instead. 
      if(result == 0)
          result = daemonBlockChainHeight();
      return result;
  }
  
  EXPORT
  bool WalletImpl::daemonSynced() const
  {   
      if(connected() == Wallet::ConnectionStatus_Disconnected)
          return false;
      uint64_t blockChainHeight = daemonBlockChainHeight();
      return (blockChainHeight >= daemonBlockChainTargetHeight() && blockChainHeight > 1);
  }
  
  EXPORT
  bool WalletImpl::synchronized() const
  {
      return m_synchronized;
  }
  
  EXPORT
  bool WalletImpl::refresh()
  {
      clearStatus();
      //TODO: make doRefresh return bool to know whether the error occured during refresh or not
      //otherwise one may try, say, to send transaction, transfer fails and this method returns false
      doRefresh();
      return good();
  }
  
  EXPORT
  void WalletImpl::refreshAsync()
  {
      LOG_PRINT_L3(__FUNCTION__ << ": Refreshing asynchronously..");
      clearStatus();
      m_refreshCV.notify_one();
  }
  
  EXPORT
  bool WalletImpl::rescanBlockchain()
  {
      clearStatus();
      m_refreshShouldRescan = true;
      doRefresh();
      return good();
  }
  
  EXPORT
  void WalletImpl::rescanBlockchainAsync()
  {
      m_refreshShouldRescan = true;
      refreshAsync();
  }
  
  EXPORT
  void WalletImpl::setAutoRefreshInterval(int millis)
  {
      if (millis > MAX_REFRESH_INTERVAL_MILLIS) {
          LOG_ERROR(__FUNCTION__<< ": invalid refresh interval " << millis
                    << " ms, maximum allowed is " << MAX_REFRESH_INTERVAL_MILLIS << " ms");
          m_refreshIntervalMillis = MAX_REFRESH_INTERVAL_MILLIS;
      } else {
          m_refreshIntervalMillis = millis;
      }
  }
  
  EXPORT
  int WalletImpl::autoRefreshInterval() const
  {
      return m_refreshIntervalMillis;
  }
  
  UnsignedTransaction* WalletImpl::loadUnsignedTx(std::string_view unsigned_filename_) {
    auto unsigned_filename = fs::u8path(unsigned_filename_);
    clearStatus();
    UnsignedTransactionImpl* transaction = new UnsignedTransactionImpl(*this);
    if (!m_wallet->load_unsigned_tx(unsigned_filename, transaction->m_unsigned_tx_set)){
      setStatusError(tr("Failed to load unsigned transactions"));
      transaction->m_status = {UnsignedTransaction::Status::Status_Error, status().second};
  
      return transaction;
    }
    
    // Check tx data and construct confirmation message
    std::string extra_message;
    if (!transaction->m_unsigned_tx_set.transfers.second.empty())
      extra_message = (boost::format("%u outputs to import. ") % (unsigned)transaction->m_unsigned_tx_set.transfers.second.size()).str();
    transaction->checkLoadedTx([&transaction](){return transaction->m_unsigned_tx_set.txes.size();}, [&transaction](size_t n)->const wallet::tx_construction_data&{return transaction->m_unsigned_tx_set.txes[n];}, extra_message);
    auto [code, msg] = transaction->status();
    setStatus(code, std::move(msg));
  
    return transaction;
  }
  
  EXPORT
  bool WalletImpl::submitTransaction(std::string_view filename_) {
    auto fileName = fs::u8path(filename_);
    clearStatus();
    std::unique_ptr<PendingTransactionImpl> transaction(new PendingTransactionImpl(*this));
  
    bool r = m_wallet->load_tx(fileName, transaction->m_pending_tx);
    if (!r) {
      setStatus(Status_Error, tr("Failed to load transaction from file"));
      return false;
    }
    
    if(!transaction->commit()) {
      setStatusError(transaction->status().second);
      return false;
    }
  
    return true;
  }
  
  EXPORT
  bool WalletImpl::exportKeyImages(std::string_view filename_) 
  {
    auto filename = fs::u8path(filename_);
    if (m_wallet->watch_only())
    {
      setStatusError(tr("Wallet is view only"));
      return false;
    }
    
    try
    {
      if (!m_wallet->export_key_images_to_file(filename, false /* requested_ki_only */))
      {
        setStatusError(tr("failed to save file ") + filename.u8string());
        return false;
      }
    }
    catch (const std::exception &e)
    {
      LOG_ERROR("Error exporting key images: " << e.what());
      setStatusError(e.what());
      return false;
    }
    return true;
  }
  
  EXPORT
  bool WalletImpl::importKeyImages(std::string_view filename_)
  {
    auto filename = fs::u8path(filename_);
    if (!trustedDaemon()) {
      setStatusError(tr("Key images can only be imported with a trusted daemon"));
      return false;
    }
    try
    {
      uint64_t spent = 0, unspent = 0;
      uint64_t height = m_wallet->import_key_images_from_file(filename, spent, unspent);
      LOG_PRINT_L2("Signed key images imported to height " << height << ", "
          << print_money(spent) << " spent, " << print_money(unspent) << " unspent");
    }
    catch (const std::exception &e)
    {
      LOG_ERROR("Error exporting key images: " << e.what());
      setStatusError(std::string(tr("Failed to import key images: ")) + e.what());
      return false;
    }
  
    return true;
  }
  
  EXPORT
  void WalletImpl::addSubaddressAccount(const std::string& label)
  {
      m_wallet->add_subaddress_account(label);
  }
  EXPORT
  size_t WalletImpl::numSubaddressAccounts() const
  {
      return m_wallet->get_num_subaddress_accounts();
  }
  EXPORT
  size_t WalletImpl::numSubaddresses(uint32_t accountIndex) const
  {
      return m_wallet->get_num_subaddresses(accountIndex);
  }
  EXPORT
  void WalletImpl::addSubaddress(uint32_t accountIndex, const std::string& label)
  {
      m_wallet->add_subaddress(accountIndex, label);
  }
  EXPORT
  std::string WalletImpl::getSubaddressLabel(uint32_t accountIndex, uint32_t addressIndex) const
  {
      try
      {
          return m_wallet->get_subaddress_label({accountIndex, addressIndex});
      }
      catch (const std::exception &e)
      {
          LOG_ERROR("Error getting subaddress label: " << e.what());
          setStatusError(std::string(tr("Failed to get subaddress label: ")) + e.what());
          return "";
      }
  }
  EXPORT
  void WalletImpl::setSubaddressLabel(uint32_t accountIndex, uint32_t addressIndex, const std::string &label)
  {
      try
      {
          return m_wallet->set_subaddress_label({accountIndex, addressIndex}, label);
      }
      catch (const std::exception &e)
      {
          LOG_ERROR("Error setting subaddress label: " << e.what());
          setStatusError(std::string(tr("Failed to set subaddress label: ")) + e.what());
      }
  }
  
  EXPORT
  MultisigState WalletImpl::multisig() const {
      MultisigState state;
      state.isMultisig = m_wallet->multisig(&state.isReady, &state.threshold, &state.total);
  
      return state;
  }
  
  EXPORT
  std::string WalletImpl::getMultisigInfo() const {
      try {
          clearStatus();
          return m_wallet->get_multisig_info();
      } catch (const std::exception& e) {
          LOG_ERROR("Error on generating multisig info: " << e.what());
          setStatusError(std::string(tr("Failed to get multisig info: ")) + e.what());
      }
  
      return {};
  }
  
  EXPORT
  std::string WalletImpl::makeMultisig(const std::vector<std::string>& info, uint32_t threshold) {
      try {
          clearStatus();
  
          if (m_wallet->multisig())
              throw std::runtime_error("Wallet is already multisig");
  
          return m_wallet->make_multisig(epee::wipeable_string(m_password), info, threshold);
      } catch (const std::exception& e) {
          LOG_ERROR("Error on making multisig wallet: " << e.what());
          setStatusError(std::string(tr("Failed to make multisig: ")) + e.what());
      }
  
      return {};
  }
  
  EXPORT
  std::string WalletImpl::exchangeMultisigKeys(const std::vector<std::string> &info) {
      try {
          clearStatus();
          checkMultisigWalletNotReady(m_wallet);
  
          return m_wallet->exchange_multisig_keys(epee::wipeable_string(m_password), info);
      } catch (const std::exception& e) {
          LOG_ERROR("Error on exchanging multisig keys: " << e.what());
          setStatusError(std::string(tr("Failed to make multisig: ")) + e.what());
      }
  
      return {};
  }
  
  EXPORT
  bool WalletImpl::finalizeMultisig(const std::vector<std::string>& extraMultisigInfo) {
      try {
          clearStatus();
          checkMultisigWalletNotReady(m_wallet);
  
          if (m_wallet->finalize_multisig(epee::wipeable_string(m_password), extraMultisigInfo)) {
              return true;
          }
  
          setStatusError(tr("Failed to finalize multisig wallet creation"));
      } catch (const std::exception& e) {
          LOG_ERROR("Error on finalizing multisig wallet creation: " << e.what());
          setStatusError(std::string(tr("Failed to finalize multisig wallet creation: ")) + e.what());
      }
  
      return false;
  }
  
  EXPORT
  bool WalletImpl::exportMultisigImages(std::string& images) {
      try {
          clearStatus();
          checkMultisigWalletReady(m_wallet);
  
          auto blob = m_wallet->export_multisig();
          images = oxenmq::to_hex(blob);
          return true;
      } catch (const std::exception& e) {
          LOG_ERROR("Error on exporting multisig images: " << e.what());
          setStatusError(std::string(tr("Failed to export multisig images: ")) + e.what());
      }
  
      return false;
  }
  
  EXPORT
  size_t WalletImpl::importMultisigImages(const std::vector<std::string>& images) {
      try {
          clearStatus();
          checkMultisigWalletReady(m_wallet);
  
          std::vector<std::string> blobs;
          blobs.reserve(images.size());
  
          for (const auto& image: images) {
              std::string blob;
              if (!epee::string_tools::parse_hexstr_to_binbuff(image, blob)) {
                  LOG_ERROR("Failed to parse imported multisig images");
                  setStatusError(tr("Failed to parse imported multisig images"));
                  return 0;
              }
  
              blobs.emplace_back(std::move(blob));
          }
  
          return m_wallet->import_multisig(blobs);
      } catch (const std::exception& e) {
          LOG_ERROR("Error on importing multisig images: " << e.what());
          setStatusError(std::string(tr("Failed to import multisig images: ")) + e.what());
      }
  
      return 0;
  }
  
  EXPORT
  bool WalletImpl::hasMultisigPartialKeyImages() const {
      try {
          clearStatus();
          checkMultisigWalletReady(m_wallet);
  
          return m_wallet->has_multisig_partial_key_images();
      } catch (const std::exception& e) {
          LOG_ERROR("Error on checking for partial multisig key images: " << e.what());
          setStatusError(std::string(tr("Failed to check for partial multisig key images: ")) + e.what());
      }
  
      return false;
  }
  
  EXPORT
  PendingTransaction* WalletImpl::restoreMultisigTransaction(const std::string& signData) {
      try {
          clearStatus();
          checkMultisigWalletReady(m_wallet);
  
          std::string binary;
          if (!epee::string_tools::parse_hexstr_to_binbuff(signData, binary))
              throw std::runtime_error("Failed to deserialize multisig transaction");
  
          tools::wallet2::multisig_tx_set txSet;
          if (!m_wallet->load_multisig_tx(binary, txSet, {}))
            throw std::runtime_error("couldn't parse multisig transaction data");
  
          auto ptx = new PendingTransactionImpl(*this);
          ptx->m_pending_tx = txSet.m_ptx;
          ptx->m_signers = txSet.m_signers;
  
          return ptx;
      } catch (std::exception& e) {
          LOG_ERROR("Error on restoring multisig transaction: " << e.what());
          setStatusError(std::string(tr("Failed to restore multisig transaction: ")) + e.what());
      }
  
      return nullptr;
  }
  
  // TODO:
  // - check / design how "Transaction" can be single interface
  // (instead of few different data structures within wallet2 implementation:
  //    - pending_tx;
  //    - transfer_details;
  //    - payment_details;
  //    - unconfirmed_transfer_details;
  //    - confirmed_transfer_details)
  
  EXPORT
  PendingTransaction *WalletImpl::createTransactionMultDest(const std::vector<std::string> &dst_addr, std::optional<std::vector<uint64_t>> amount, uint32_t priority, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices)
  
  {
      clearStatus();
      // Pause refresh thread while creating transaction
      pauseRefresh();
        
      cryptonote::address_parse_info info;
  
      PendingTransactionImpl * transaction = new PendingTransactionImpl(*this);
  
      do {
          std::vector<uint8_t> extra;
          std::string extra_nonce;
          std::vector<cryptonote::tx_destination_entry> dsts;
          if (!amount && dst_addr.size() > 1) {
              setStatusError(tr("Sending all requires one destination address"));
              break;
          }
          if (amount && (dst_addr.size() != (*amount).size())) {
              setStatusError(tr("Destinations and amounts are unequal"));
              break;
          }
          bool error = false;
          for (size_t i = 0; i < dst_addr.size() && !error; i++) {
              if(!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), dst_addr[i])) {
                  // TODO: copy-paste 'if treating as an address fails, try as url' from simplewallet.cpp:1982
                  setStatusError(tr("Invalid destination address"));
                  error = true;
                  break;
              }
              if (info.has_payment_id) {
                  if (!extra_nonce.empty()) {
                      setStatusError(tr("a single transaction cannot use more than one payment id"));
                      error = true;
                      break;
                  }
                  set_encrypted_payment_id_to_tx_extra_nonce(extra_nonce, info.payment_id);
              }
  
              if (amount) {
                  cryptonote::tx_destination_entry de;
                  de.original = dst_addr[i];
                  de.addr = info.address;
                  de.amount = (*amount)[i];
                  de.is_subaddress = info.is_subaddress;
                  de.is_integrated = info.has_payment_id;
                  dsts.push_back(de);
  
              } else {
                  if (subaddr_indices.empty()) {
                      for (uint32_t index = 0; index < m_wallet->get_num_subaddresses(subaddr_account); ++index)
                          subaddr_indices.insert(index);
                  }
              }
          }
          if (error) {
              break;
          }
          if (!extra_nonce.empty() && !add_extra_nonce_to_tx_extra(extra, extra_nonce)) {
              setStatusError(tr("failed to set up payment id, though it was decoded correctly"));
              break;
          }
          try {
              std::optional<uint8_t> hf_version = m_wallet->get_hard_fork_version();
              if (!hf_version)
              {
                setStatusError(tools::ERR_MSG_NETWORK_VERSION_QUERY_FAILED);
                return transaction;
              }
  
              if (amount) {
                  oxen_construct_tx_params tx_params = tools::wallet2::construct_params(*hf_version, txtype::standard, priority);
                  transaction->m_pending_tx = m_wallet->create_transactions_2(dsts, CRYPTONOTE_DEFAULT_TX_MIXIN, 0 /* unlock_time */,
                                                                              priority,
                                                                              extra, subaddr_account, subaddr_indices, tx_params);
              } else {
                  transaction->m_pending_tx = m_wallet->create_transactions_all(0, info.address, info.is_subaddress, 1, CRYPTONOTE_DEFAULT_TX_MIXIN, 0 /* unlock_time */,
                                                                                priority,
                                                                                extra, subaddr_account, subaddr_indices);
              }
              pendingTxPostProcess(transaction);
  
              if (multisig().isMultisig) {
                  auto tx_set = m_wallet->make_multisig_tx_set(transaction->m_pending_tx);
                  transaction->m_pending_tx = tx_set.m_ptx;
                  transaction->m_signers = tx_set.m_signers;
              }
          } catch (const tools::error::daemon_busy&) {
              // TODO: make it translatable with "tr"?
              setStatusError(tr("daemon is busy. Please try again later."));
          } catch (const tools::error::no_connection_to_daemon&) {
              setStatusError(tr("no connection to daemon. Please make sure daemon is running."));
          } catch (const tools::error::wallet_rpc_error& e) {
              setStatusError(tr("RPC error: ") +  e.to_string());
          } catch (const tools::error::get_outs_error &e) {
              setStatusError((boost::format(tr("failed to get outputs to mix: %s")) % e.what()).str());
          } catch (const tools::error::not_enough_unlocked_money& e) {
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, available only %s, sent amount %s")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount());
              setStatusError(writer.str());
          } catch (const tools::error::not_enough_money& e) {
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, overall balance only %s, sent amount %s")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount());
              setStatusError(writer.str());
          } catch (const tools::error::tx_not_possible& e) {
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, available only %s, transaction amount %s = %s + %s (fee)")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount() + e.fee())  %
                        print_money(e.tx_amount()) %
                        print_money(e.fee());
              setStatusError(writer.str());
          } catch (const tools::error::not_enough_outs_to_mix& e) {
              std::ostringstream writer;
              writer << tr("not enough outputs for specified ring size") << " = " << (e.mixin_count() + 1) << ":";
              for (const std::pair<uint64_t, uint64_t> outs_for_amount : e.scanty_outs()) {
                  writer << "\n" << tr("output amount") << " = " << print_money(outs_for_amount.first) << ", " << tr("found outputs to use") << " = " << outs_for_amount.second;
              }
              writer << "\n" << tr("Please sweep unmixable outputs.");
              setStatusError(writer.str());
          } catch (const tools::error::tx_not_constructed&) {
              setStatusError(tr("transaction was not constructed"));
          } catch (const tools::error::tx_rejected& e) {
              std::ostringstream writer;
              writer << (boost::format(tr("transaction %s was rejected by daemon with status: ")) % get_transaction_hash(e.tx())) <<  e.status();
              setStatusError(writer.str());
          } catch (const tools::error::tx_sum_overflow& e) {
              setStatusError(e.what());
          } catch (const tools::error::zero_destination&) {
              setStatusError(tr("one of destinations is zero"));
          } catch (const tools::error::tx_too_big& e) {
              setStatusError(tr("failed to find a suitable way to split transactions"));
          } catch (const tools::error::transfer_error& e) {
              setStatusError(std::string(tr("unknown transfer error: ")) + e.what());
          } catch (const tools::error::wallet_internal_error& e) {
              setStatusError(std::string(tr("internal error: ")) + e.what());
          } catch (const std::exception& e) {
              setStatusError(std::string(tr("unexpected error: ")) + e.what());
          } catch (...) {
              setStatusError(tr("unknown error"));
          }
      } while (false);
  
      transaction->m_status = status();
      // Resume refresh thread
      startRefresh();
      return transaction;
  }
  
  EXPORT
  PendingTransaction *WalletImpl::createTransaction(const std::string &dst_addr, std::optional<uint64_t> amount,
                                                    uint32_t priority, uint32_t subaddr_account, std::set<uint32_t> subaddr_indices)
  
  {
      return createTransactionMultDest(std::vector<std::string> {dst_addr},  amount ? (std::vector<uint64_t> {*amount}) : (std::optional<std::vector<uint64_t>>()), priority, subaddr_account, subaddr_indices);
  }
  
  EXPORT
  PendingTransaction *WalletImpl::createSweepUnmixableTransaction()
  
  {
      clearStatus();
      cryptonote::tx_destination_entry de;
  
      PendingTransactionImpl * transaction = new PendingTransactionImpl(*this);
  
      {
          try {
              transaction->m_pending_tx = m_wallet->create_unmixable_sweep_transactions();
              pendingTxPostProcess(transaction);
  
          } catch (const tools::error::daemon_busy&) {
              // TODO: make it translatable with "tr"?
              setStatusError(tr("daemon is busy. Please try again later."));
          } catch (const tools::error::no_connection_to_daemon&) {
              setStatusError(tr("no connection to daemon. Please make sure daemon is running."));
          } catch (const tools::error::wallet_rpc_error& e) {
              setStatusError(tr("RPC error: ") +  e.to_string());
          } catch (const tools::error::get_outs_error&) {
              setStatusError(tr("failed to get outputs to mix"));
          } catch (const tools::error::not_enough_unlocked_money& e) {
              setStatusError("");
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, available only %s, sent amount %s")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount());
              setStatusError(writer.str());
          } catch (const tools::error::not_enough_money& e) {
              setStatusError("");
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, overall balance only %s, sent amount %s")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount());
              setStatusError(writer.str());
          } catch (const tools::error::tx_not_possible& e) {
              setStatusError("");
              std::ostringstream writer;
  
              writer << boost::format(tr("not enough money to transfer, available only %s, transaction amount %s = %s + %s (fee)")) %
                        print_money(e.available()) %
                        print_money(e.tx_amount() + e.fee())  %
                        print_money(e.tx_amount()) %
                        print_money(e.fee());
              setStatusError(writer.str());
          } catch (const tools::error::not_enough_outs_to_mix& e) {
              std::ostringstream writer;
              writer << tr("not enough outputs for specified ring size") << " = " << (e.mixin_count() + 1) << ":";
              for (const std::pair<uint64_t, uint64_t> outs_for_amount : e.scanty_outs()) {
                  writer << "\n" << tr("output amount") << " = " << print_money(outs_for_amount.first) << ", " << tr("found outputs to use") << " = " << outs_for_amount.second;
              }
              setStatusError(writer.str());
          } catch (const tools::error::tx_not_constructed&) {
              setStatusError(tr("transaction was not constructed"));
          } catch (const tools::error::tx_rejected& e) {
              std::ostringstream writer;
              writer << (boost::format(tr("transaction %s was rejected by daemon with status: ")) % get_transaction_hash(e.tx())) <<  e.status();
              setStatusError(writer.str());
          } catch (const tools::error::tx_sum_overflow& e) {
              setStatusError(e.what());
          } catch (const tools::error::zero_destination&) {
              setStatusError(tr("one of destinations is zero"));
          } catch (const tools::error::tx_too_big& e) {
              setStatusError(tr("failed to find a suitable way to split transactions"));
          } catch (const tools::error::transfer_error& e) {
              setStatusError(std::string(tr("unknown transfer error: ")) + e.what());
          } catch (const tools::error::wallet_internal_error& e) {
              setStatusError(std::string(tr("internal error: ")) + e.what());
          } catch (const std::exception& e) {
              setStatusError(std::string(tr("unexpected error: ")) + e.what());
          } catch (...) {
              setStatusError(tr("unknown error"));
          }
      }
  
      transaction->m_status = status();
      return transaction;
  }
  
  EXPORT
  void WalletImpl::disposeTransaction(PendingTransaction *t)
  {
      delete t;
  }
  
  EXPORT
  uint64_t WalletImpl::estimateTransactionFee(uint32_t priority, uint32_t recipients) const
  {
      constexpr uint32_t typical_size = 2000;
      const auto base_fee = m_wallet->get_base_fees();
      uint64_t pct = m_wallet->get_fee_percent(priority == 1 ? 1 : 5, txtype::standard);
      return (base_fee.first * typical_size + base_fee.second * (recipients + 1)) * pct / 100;
  }
  
  EXPORT
  TransactionHistory *WalletImpl::history()
  {
      return m_history.get();
  }
  
  EXPORT
  AddressBook *WalletImpl::addressBook()
  {
      return m_addressBook.get();
  }
  
  EXPORT
  Subaddress *WalletImpl::subaddress()
  {
      return m_subaddress.get();
  }
  
  EXPORT
  SubaddressAccount *WalletImpl::subaddressAccount()
  {
      return m_subaddressAccount.get();
  }
  
  EXPORT
  void WalletImpl::setListener(WalletListener *l)
  {
      // TODO thread synchronization;
      m_wallet2Callback->setListener(l);
  }
  
  EXPORT
  bool WalletImpl::setCacheAttribute(const std::string &key, const std::string &val)
  {
      m_wallet->set_attribute(key, val);
      return true;
  }
  
  EXPORT
  std::string WalletImpl::getCacheAttribute(const std::string &key) const
  {
      std::string value;
      m_wallet->get_attribute(key, value);
      return value;
  }
  
  EXPORT
  bool WalletImpl::setUserNote(const std::string &txid, const std::string &note)
  {
      cryptonote::blobdata txid_data;
      if(!epee::string_tools::parse_hexstr_to_binbuff(txid, txid_data) || txid_data.size() != sizeof(crypto::hash))
        return false;
      const crypto::hash htxid = *reinterpret_cast<const crypto::hash*>(txid_data.data());
  
      m_wallet->set_tx_note(htxid, note);
      return true;
  }
  
  EXPORT
  std::string WalletImpl::getUserNote(const std::string &txid) const
  {
      cryptonote::blobdata txid_data;
      if(!epee::string_tools::parse_hexstr_to_binbuff(txid, txid_data) || txid_data.size() != sizeof(crypto::hash))
        return "";
      const crypto::hash htxid = *reinterpret_cast<const crypto::hash*>(txid_data.data());
  
      return m_wallet->get_tx_note(htxid);
  }
  
  EXPORT
  std::string WalletImpl::getTxKey(const std::string &txid_str) const
  {
      crypto::hash txid;
      if(!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return "";
      }
  
      crypto::secret_key tx_key;
      std::vector<crypto::secret_key> additional_tx_keys;
      try
      {
          clearStatus();
          if (m_wallet->get_tx_key(txid, tx_key, additional_tx_keys))
          {
              clearStatus();
              std::ostringstream oss;
              oss << tools::type_to_hex(tx_key);
              for (size_t i = 0; i < additional_tx_keys.size(); ++i)
                  oss << tools::type_to_hex(additional_tx_keys[i]);
              return oss.str();
          }
          else
          {
              setStatusError(tr("no tx keys found for this txid"));
              return "";
          }
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return "";
      }
  }
  
  EXPORT
  bool WalletImpl::checkTxKey(const std::string &txid_str, std::string_view tx_key_str, const std::string &address_str, uint64_t &received, bool &in_pool, uint64_t &confirmations)
  {
      crypto::hash txid;
      if (!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return false;
      }
  
      crypto::secret_key tx_key;
      std::vector<crypto::secret_key> additional_tx_keys;
      bool first = true;
      while (first || !tx_key_str.empty())
      {
          auto& key = first ? tx_key : additional_tx_keys.emplace_back();
          if (first) first = false;
  
          if (!tools::hex_to_type(tx_key_str.substr(0, 64), key))
          {
              setStatusError(tr("Failed to parse tx key"));
              return false;
          }
          tx_key_str.remove_prefix(64);
      }
  
      cryptonote::address_parse_info info;
      if (!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), address_str))
      {
          setStatusError(tr("Failed to parse address"));
          return false;
      }
  
      try
      {
          m_wallet->check_tx_key(txid, tx_key, additional_tx_keys, info.address, received, in_pool, confirmations);
          clearStatus();
          return true;
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return false;
      }
  }
  
  EXPORT
  std::string WalletImpl::getTxProof(const std::string &txid_str, const std::string &address_str, const std::string &message) const
  {
      crypto::hash txid;
      if (!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return "";
      }
  
      cryptonote::address_parse_info info;
      if (!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), address_str))
      {
          setStatusError(tr("Failed to parse address"));
          return "";
      }
  
      try
      {
          clearStatus();
          return m_wallet->get_tx_proof(txid, info.address, info.is_subaddress, message);
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return "";
      }
  }
  
  EXPORT
  bool WalletImpl::checkTxProof(const std::string &txid_str, const std::string &address_str, const std::string &message, const std::string &signature, bool &good, uint64_t &received, bool &in_pool, uint64_t &confirmations)
  {
      crypto::hash txid;
      if (!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return false;
      }
  
      cryptonote::address_parse_info info;
      if (!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), address_str))
      {
          setStatusError(tr("Failed to parse address"));
          return false;
      }
  
      try
      {
          good = m_wallet->check_tx_proof(txid, info.address, info.is_subaddress, message, signature, received, in_pool, confirmations);
          clearStatus();
          return true;
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return false;
      }
  }
  
  EXPORT
  std::string WalletImpl::getSpendProof(const std::string &txid_str, const std::string &message) const {
      crypto::hash txid;
      if(!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return "";
      }
  
      try
      {
          clearStatus();
          return m_wallet->get_spend_proof(txid, message);
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return "";
      }
  }
  
  EXPORT
  bool WalletImpl::checkSpendProof(const std::string &txid_str, const std::string &message, const std::string &signature, bool &good) const {
      good = false;
      crypto::hash txid;
      if(!tools::hex_to_type(txid_str, txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return false;
      }
  
      try
      {
          clearStatus();
          good = m_wallet->check_spend_proof(txid, message, signature);
          return true;
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return false;
      }
  }
  
  EXPORT
  std::string WalletImpl::getReserveProof(bool all, uint32_t account_index, uint64_t amount, const std::string &message) const {
      try
      {
          clearStatus();
          std::optional<std::pair<uint32_t, uint64_t>> account_minreserve;
          if (!all)
          {
              account_minreserve = std::make_pair(account_index, amount);
          }
          return m_wallet->get_reserve_proof(account_minreserve, message);
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return "";
      }
  }
  
  EXPORT
  bool WalletImpl::checkReserveProof(const std::string &address, const std::string &message, const std::string &signature, bool &good, uint64_t &total, uint64_t &spent) const {
      cryptonote::address_parse_info info;
      if (!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), address))
      {
          setStatusError(tr("Failed to parse address"));
          return false;
      }
      if (info.is_subaddress)
      {
          setStatusError(tr("Address must not be a subaddress"));
          return false;
      }
  
      good = false;
      try
      {
          clearStatus();
          good = m_wallet->check_reserve_proof(info.address, message, signature, total, spent);
          return true;
      }
      catch (const std::exception &e)
      {
          setStatusError(e.what());
          return false;
      }
  }
  
  EXPORT
  std::string WalletImpl::signMessage(const std::string &message)
  {
    return m_wallet->sign(message);
  }
  
  EXPORT
  bool WalletImpl::verifySignedMessage(const std::string &message, const std::string &address, const std::string &signature) const
  {
    cryptonote::address_parse_info info;
  
    if (!cryptonote::get_account_address_from_str(info, m_wallet->nettype(), address))
      return false;
  
    return m_wallet->verify(message, info.address, signature);
  }
  
  EXPORT
  std::string WalletImpl::signMultisigParticipant(const std::string &message) const
  {
      clearStatus();
  
      bool ready = false;
      if (!m_wallet->multisig(&ready) || !ready) {
          setStatusError(tr("The wallet must be in multisig ready state"));
          return {};
      }
  
      try {
          return m_wallet->sign_multisig_participant(message);
      } catch (const std::exception& e) {
          setStatusError(e.what());
      }
  
      return {};
  }
  
  EXPORT
  bool WalletImpl::verifyMessageWithPublicKey(const std::string &message, const std::string &publicKey, const std::string &signature) const
  {
      clearStatus();
  
      cryptonote::blobdata pkeyData;
      if(!epee::string_tools::parse_hexstr_to_binbuff(publicKey, pkeyData) || pkeyData.size() != sizeof(crypto::public_key))
          return setStatusError(tr("Given string is not a key"));
  
      try {
          crypto::public_key pkey = *reinterpret_cast<const crypto::public_key*>(pkeyData.data());
          return m_wallet->verify_with_public_key(message, pkey, signature);
      } catch (const std::exception& e) {
          return setStatusError(e.what());
      }
  
      return false;
  }
  
  EXPORT
  bool WalletImpl::connectToDaemon()
  {
      bool result = m_wallet->check_connection(NULL, NULL, DEFAULT_CONNECTION_TIMEOUT_MILLIS);
      if (!result) {
          setStatusError("Error connecting to daemon at " + m_wallet->get_daemon_address());
      } else {
          clearStatus();
          // start refreshing here
      }
      return result;
  }
  
  EXPORT
  Wallet::ConnectionStatus WalletImpl::connected() const
  {
      rpc::version_t version;
      m_is_connected = m_wallet->check_connection(&version, NULL, DEFAULT_CONNECTION_TIMEOUT_MILLIS);
      if (!m_is_connected)
          return Wallet::ConnectionStatus_Disconnected;
      // Version check is not implemented in light wallets nodes/wallets
      if (!m_wallet->light_wallet() && version.first != rpc::VERSION.first)
          return Wallet::ConnectionStatus_WrongVersion;
      return Wallet::ConnectionStatus_Connected;
  }
  
  EXPORT
  void WalletImpl::setTrustedDaemon(bool arg)
  {
      m_wallet->set_trusted_daemon(arg);
  }
  
  EXPORT
  bool WalletImpl::trustedDaemon() const
  {
      return m_wallet->is_trusted_daemon();
  }
  
  EXPORT
  bool WalletImpl::watchOnly() const
  {
      return m_wallet->watch_only();
  }
  
  EXPORT
  void WalletImpl::clearStatus() const
  {
      std::lock_guard l{m_statusMutex};
      m_status = {Status_Ok, ""};
  }
  
  EXPORT
  bool WalletImpl::setStatusError(std::string message) const
  {
      return setStatus(Status_Error, std::move(message));
  }
  
  EXPORT
  bool WalletImpl::setStatusCritical(std::string message) const
  {
      return setStatus(Status_Critical, std::move(message));
  }
  
  EXPORT
  bool WalletImpl::setStatus(int status, std::string message) const
  {
      std::lock_guard l{m_statusMutex};
      m_status.first = status;
      m_status.second = std::move(message);
      return status == Status_Ok;
  }
  
  EXPORT
  void WalletImpl::refreshThreadFunc()
  {
      LOG_PRINT_L3(__FUNCTION__ << ": starting refresh thread");
  
      while (true) {
          std::unique_lock lock{m_refreshMutex};
          if (m_refreshThreadDone) {
              break;
          }
          LOG_PRINT_L3(__FUNCTION__ << ": waiting for refresh...");
          // if auto refresh enabled, we wait for the "m_refreshIntervalSeconds" interval.
          // if not - we wait forever
          if (m_refreshIntervalMillis > 0) {
              std::chrono::milliseconds wait_for_ms{m_refreshIntervalMillis.load()};
              m_refreshCV.wait_for(lock, wait_for_ms);
          } else {
              m_refreshCV.wait(lock);
          }
  
          LOG_PRINT_L3(__FUNCTION__ << ": refresh lock acquired...");
          LOG_PRINT_L3(__FUNCTION__ << ": m_refreshEnabled: " << m_refreshEnabled);
          auto st = status();
          LOG_PRINT_L3(__FUNCTION__ << ": m_status: " << st.first << ": " << st.second);
          LOG_PRINT_L3(__FUNCTION__ << ": m_refreshShouldRescan: " << m_refreshShouldRescan);
          if (m_refreshEnabled) {
              LOG_PRINT_L3(__FUNCTION__ << ": refreshing...");
              doRefresh();
          }
      }
      LOG_PRINT_L3(__FUNCTION__ << ": refresh thread stopped");
  }
  
  EXPORT
  void WalletImpl::doRefresh()
  {
      bool rescan = m_refreshShouldRescan.exchange(false);
      // synchronizing async and sync refresh calls
      std::lock_guard guard{m_refreshMutex2};
      do {
          try {
              LOG_PRINT_L3(__FUNCTION__ << ": doRefresh, rescan = "<<rescan);
              // Syncing daemon and refreshing wallet simultaneously is very resource intensive.
              // Disable refresh if wallet is disconnected or daemon isn't synced.
              if (m_wallet->light_wallet() || daemonSynced()) {
                  if(rescan)
                      m_wallet->rescan_blockchain(false);
                  m_wallet->refresh(trustedDaemon());
                  if (!m_synchronized) {
                      m_synchronized = true;
                  }
                  // assuming if we have empty history, it wasn't initialized yet
                  // for further history changes client need to update history in
                  // "on_money_received" and "on_money_sent" callbacks
                  if (m_history->count() == 0) {
                      m_history->refresh();
                  }
                  m_wallet->find_and_save_rings(false);
              } else {
                 LOG_PRINT_L3(__FUNCTION__ << ": skipping refresh - daemon is not synced");
              }
          } catch (const std::exception &e) {
              setStatusError(e.what());
              break;
          }
      } while (!rescan && (rescan=m_refreshShouldRescan.exchange(false))); // repeat if not rescanned and rescan was requested
  
      if (m_wallet2Callback->getListener()) {
          m_wallet2Callback->getListener()->refreshed();
      }
  }
  
  
  EXPORT
  void WalletImpl::startRefresh()
  {
      if (!m_refreshEnabled) {
          LOG_PRINT_L2(__FUNCTION__ << ": refresh started/resumed...");
          m_refreshEnabled = true;
          m_refreshCV.notify_one();
      }
  }
  
  
  
  EXPORT
  void WalletImpl::stopRefresh()
  {
      if (!m_refreshThreadDone) {
          m_refreshEnabled = false;
          m_refreshThreadDone = true;
          m_refreshCV.notify_one();
          m_refreshThread.join();
      }
  }
  
  EXPORT
  void WalletImpl::pauseRefresh()
  {
      LOG_PRINT_L2(__FUNCTION__ << ": refresh paused...");
      // TODO synchronize access
      if (!m_refreshThreadDone) {
          m_refreshEnabled = false;
      }
  }
  
  
  EXPORT
  bool WalletImpl::isNewWallet() const
  {
      // in case wallet created without daemon connection, closed and opened again,
      // it's the same case as if it created from scratch, i.e. we need "fast sync"
      // with the daemon (pull hashes instead of pull blocks).
      // If wallet cache is rebuilt, creation height stored in .keys is used.
      // Watch only wallet is a copy of an existing wallet. 
      return !(blockChainHeight() > 1 || m_recoveringFromSeed || m_recoveringFromDevice || m_rebuildWalletCache) && !watchOnly();
  }
  
  EXPORT
  void WalletImpl::pendingTxPostProcess(PendingTransactionImpl * pending)
  {
    // If the device being used is HW device with cold signing protocol, cold sign then.
    if (!m_wallet->get_account().get_device().has_tx_cold_sign()){
      return;
    }
  
    tools::wallet2::signed_tx_set exported_txs;
    std::vector<cryptonote::address_parse_info> dsts_info;
  
    m_wallet->cold_sign_tx(pending->m_pending_tx, exported_txs, dsts_info, pending->m_tx_device_aux);
    pending->m_key_images = exported_txs.key_images;
    pending->m_pending_tx = exported_txs.ptx;
  }
  
  EXPORT
  bool WalletImpl::doInit(const std::string &daemon_address, uint64_t upper_transaction_size_limit, bool ssl)
  {
      if (!m_wallet->init(daemon_address, m_daemon_login, /*proxy=*/ "", upper_transaction_size_limit))
         return false;
  
      // in case new wallet, this will force fast-refresh (pulling hashes instead of blocks)
      // If daemon isn't synced a calculated block height will be used instead
      //TODO: Handle light wallet scenario where block height = 0.
      if (isNewWallet() && daemonSynced()) {
          LOG_PRINT_L2(__FUNCTION__ << ":New Wallet - fast refresh until " << daemonBlockChainHeight());
          m_wallet->set_refresh_from_block_height(daemonBlockChainHeight());
      }
  
      if (m_rebuildWalletCache)
        LOG_PRINT_L2(__FUNCTION__ << ": Rebuilding wallet cache, fast refresh until block " << m_wallet->get_refresh_from_block_height());
  
      if (Utils::isAddressLocal(daemon_address)) {
          this->setTrustedDaemon(true);
          m_refreshIntervalMillis = DEFAULT_REFRESH_INTERVAL_MILLIS;
      } else {
          this->setTrustedDaemon(false);
          m_refreshIntervalMillis = DEFAULT_REMOTE_NODE_REFRESH_INTERVAL_MILLIS;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::parse_uri(const std::string &uri, std::string &address, std::string &payment_id, uint64_t &amount, std::string &tx_description, std::string &recipient_name, std::vector<std::string> &unknown_parameters, std::string &error)
  {
      return m_wallet->parse_uri(uri, address, payment_id, amount, tx_description, recipient_name, unknown_parameters, error);
  }
  
  EXPORT
  std::string WalletImpl::getDefaultDataDir() const
  {
   return tools::get_default_data_dir();
  }
  
  EXPORT
  bool WalletImpl::rescanSpent()
  {
    clearStatus();
    if (!trustedDaemon()) {
      setStatusError(tr("Rescan spent can only be used with a trusted daemon"));
      return false;
    }
    try {
        m_wallet->rescan_spent();
    } catch (const std::exception &e) {
        LOG_ERROR(__FUNCTION__ << " error: " << e.what());
        setStatusError(e.what());
        return false;
    }
    return true;
  }
  
  
  EXPORT
  void WalletImpl::hardForkInfo(uint8_t &version, uint64_t &earliest_height) const
  {
      m_wallet->get_hard_fork_info(version, earliest_height);
  }
  
  EXPORT
  bool WalletImpl::useForkRules(uint8_t version, int64_t early_blocks) const 
  {
      return m_wallet->use_fork_rules(version,early_blocks);
  }
  
  EXPORT
  bool WalletImpl::blackballOutputs(const std::vector<std::string> &outputs, bool add)
  {
      std::vector<std::pair<uint64_t, uint64_t>> raw_outputs;
      raw_outputs.reserve(outputs.size());
      uint64_t amount = std::numeric_limits<uint64_t>::max(), offset, num_offsets;
      for (const std::string &str: outputs)
      {
          if (sscanf(str.c_str(), "@%" PRIu64, &amount) == 1)
            continue;
          if (amount == std::numeric_limits<uint64_t>::max())
          {
            setStatusError("First line is not an amount");
            return true;
          }
          if (sscanf(str.c_str(), "%" PRIu64 "*%" PRIu64, &offset, &num_offsets) == 2 && num_offsets <= std::numeric_limits<uint64_t>::max() - offset)
          {
            while (num_offsets--)
              raw_outputs.push_back(std::make_pair(amount, offset++));
          }
          else if (sscanf(str.c_str(), "%" PRIu64, &offset) == 1)
          {
            raw_outputs.push_back(std::make_pair(amount, offset));
          }
          else
          {
            setStatusError(tr("Invalid output: ") + str);
            return false;
          }
      }
      bool ret = m_wallet->set_blackballed_outputs(raw_outputs, add);
      if (!ret)
      {
          setStatusError(tr("Failed to mark outputs as spent"));
          return false;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::blackballOutput(const std::string &amount, const std::string &offset)
  {
      uint64_t raw_amount, raw_offset;
      if (!epee::string_tools::get_xtype_from_string(raw_amount, amount))
      {
          setStatusError(tr("Failed to parse output amount"));
          return false;
      }
      if (!epee::string_tools::get_xtype_from_string(raw_offset, offset))
      {
          setStatusError(tr("Failed to parse output offset"));
          return false;
      }
      bool ret = m_wallet->blackball_output(std::make_pair(raw_amount, raw_offset));
      if (!ret)
      {
          setStatusError(tr("Failed to mark output as spent"));
          return false;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::unblackballOutput(const std::string &amount, const std::string &offset)
  {
      uint64_t raw_amount, raw_offset;
      if (!epee::string_tools::get_xtype_from_string(raw_amount, amount))
      {
          setStatusError(tr("Failed to parse output amount"));
          return false;
      }
      if (!epee::string_tools::get_xtype_from_string(raw_offset, offset))
      {
          setStatusError(tr("Failed to parse output offset"));
          return false;
      }
      bool ret = m_wallet->unblackball_output(std::make_pair(raw_amount, raw_offset));
      if (!ret)
      {
          setStatusError(tr("Failed to mark output as unspent"));
          return false;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::getRing(const std::string &key_image, std::vector<uint64_t> &ring) const
  {
      crypto::key_image raw_key_image;
      if (!tools::hex_to_type(key_image, raw_key_image))
      {
          setStatusError(tr("Failed to parse key image"));
          return false;
      }
      bool ret = m_wallet->get_ring(raw_key_image, ring);
      if (!ret)
      {
          setStatusError(tr("Failed to get ring"));
          return false;
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::getRings(const std::string &txid, std::vector<std::pair<std::string, std::vector<uint64_t>>> &rings) const
  {
      crypto::hash raw_txid;
      if (!tools::hex_to_type(txid, raw_txid))
      {
          setStatusError(tr("Failed to parse txid"));
          return false;
      }
      std::vector<std::pair<crypto::key_image, std::vector<uint64_t>>> raw_rings;
      bool ret = m_wallet->get_rings(raw_txid, raw_rings);
      if (!ret)
      {
          setStatusError(tr("Failed to get rings"));
          return false;
      }
      for (const auto &r: raw_rings)
      {
        rings.push_back(std::make_pair(tools::type_to_hex(r.first), r.second));
      }
      return true;
  }
  
  EXPORT
  bool WalletImpl::setRing(const std::string &key_image, const std::vector<uint64_t> &ring, bool relative)
  {
      crypto::key_image raw_key_image;
      if (!tools::hex_to_type(key_image, raw_key_image))
      {
          setStatusError(tr("Failed to parse key image"));
          return false;
      }
      bool ret = m_wallet->set_ring(raw_key_image, ring, relative);
      if (!ret)
      {
          setStatusError(tr("Failed to set ring"));
          return false;
      }
      return true;
  }
  
  EXPORT
  void WalletImpl::segregatePreForkOutputs(bool segregate)
  {
      m_wallet->segregate_pre_fork_outputs(segregate);
  }
  
  EXPORT
  void WalletImpl::segregationHeight(uint64_t height)
  {
      m_wallet->segregation_height(height);
  }
  
  EXPORT
  void WalletImpl::keyReuseMitigation2(bool mitigation)
  {
      m_wallet->key_reuse_mitigation2(mitigation);
  }
  
  EXPORT
  bool WalletImpl::lockKeysFile()
  {
      return m_wallet->lock_keys_file();
  }
  
  EXPORT
  bool WalletImpl::unlockKeysFile()
  {
      return m_wallet->unlock_keys_file();
  }
  
  EXPORT
  bool WalletImpl::isKeysFileLocked()
  {
      return m_wallet->is_keys_file_locked();
  }
  
  EXPORT
  PendingTransaction* WalletImpl::stakePending(const std::string& sn_key_str, const uint64_t& amount)
  {
    /// Note(maxim): need to be careful to call `WalletImpl::disposeTransaction` when it is no longer needed
    PendingTransactionImpl * transaction = new PendingTransactionImpl(*this);
    std::string error_msg;
  
    crypto::public_key sn_key;
    if (!tools::hex_to_type(sn_key_str, sn_key))
    {
      error_msg = "Failed to parse service node pubkey";
      LOG_ERROR(error_msg);
      transaction->setError(error_msg);
      return transaction;
    }
  
    tools::wallet2::stake_result stake_result = m_wallet->create_stake_tx(sn_key, amount);
    if (stake_result.status != tools::wallet2::stake_result_status::success)
    {
      error_msg = "Failed to create a stake transaction: " + stake_result.msg;
      LOG_ERROR(error_msg);
      transaction->setError(error_msg);
      return transaction;
    }
  
    transaction->m_pending_tx = {stake_result.ptx};
    return transaction;
  }
  
  EXPORT
  StakeUnlockResult* WalletImpl::canRequestStakeUnlock(const std::string &sn_key)
  {
      crypto::public_key snode_key;
      if (!tools::hex_to_type(sn_key, snode_key))
      {
        tools::wallet2::request_stake_unlock_result res{};
        res.success = false;
        res.msg = "Failed to Parse Service Node Key";
        return new StakeUnlockResultImpl(*this, res);
      }
  
      return new StakeUnlockResultImpl(*this, m_wallet->can_request_stake_unlock(snode_key));
  }
  
  EXPORT
  StakeUnlockResult* WalletImpl::requestStakeUnlock(const std::string &sn_key)
  {
      tools::wallet2::request_stake_unlock_result res = {};
  
      crypto::public_key snode_key;
      if (!tools::hex_to_type(sn_key, snode_key))
      {
        res.success = false;
        res.msg = "Failed to Parse Service Node Key";
        return new StakeUnlockResultImpl(*this, res);
      }
      tools::wallet2::request_stake_unlock_result unlock_result = m_wallet->can_request_stake_unlock(snode_key);
      if (unlock_result.success)
      {
        try
        {
          m_wallet->commit_tx(unlock_result.ptx);
        }
        catch(const std::exception &e)
        {
          res.success = false;
          res.msg = "Failed to commit tx.";
          return new StakeUnlockResultImpl(*this, res);
        }
      }
      else
      {
        res.success = false;
        res.msg = tr("Cannot request stake unlock: " + unlock_result.msg);
        return new StakeUnlockResultImpl(*this, res);
      }
  
      return new StakeUnlockResultImpl(*this, unlock_result);
  }
  
  EXPORT
  uint64_t WalletImpl::coldKeyImageSync(uint64_t &spent, uint64_t &unspent)
  {
      return m_wallet->cold_key_image_sync(spent, unspent);
  }
  
  EXPORT
  void WalletImpl::deviceShowAddress(uint32_t accountIndex, uint32_t addressIndex, const std::string &paymentId)
  {
      std::optional<crypto::hash8> payment_id_param = std::nullopt;
      if (!paymentId.empty())
          if (!tools::hex_to_type(paymentId, payment_id_param.emplace()))
              throw std::runtime_error("Invalid payment ID");
  
      m_wallet->device_show_address(accountIndex, addressIndex, payment_id_param);
  }
  } // namespace
  