text: // Copyright (c) 2016-2018 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #if defined(HAVE_CONFIG_H)
  #include <config/bitcoin-config.h>
  #endif
  
  #include <chainparams.h>
  #include <chainparamsbase.h>
  #include <consensus/consensus.h>
  #include <logging.h>
  #include <util/system.h>
  #include <util/strencodings.h>
  #include <wallet/wallettool.h>
  
  #include <stdio.h>
  
  const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr;
  
  static void SetupWalletToolArgs()
  {
      SetupHelpOptions(gArgs);
      SetupChainParamsBaseOptions();
  
      gArgs.AddArg("-datadir=<dir>", "Specify data directory", false, OptionsCategory::OPTIONS);
      gArgs.AddArg("-wallet=<wallet-name>", "Specify wallet name", false, OptionsCategory::OPTIONS);
      gArgs.AddArg("-debug=<category>", "Output debugging information (default: 0).", false, OptionsCategory::DEBUG_TEST);
      gArgs.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -debug is true, 0 otherwise.", false, OptionsCategory::DEBUG_TEST);
  
      gArgs.AddArg("info", "Get wallet info", false, OptionsCategory::COMMANDS);
      gArgs.AddArg("create", "Create new wallet file", false, OptionsCategory::COMMANDS);
  }
  
  static bool WalletAppInit(int argc, char* argv[])
  {
      SetupWalletToolArgs();
      std::string error_message;
      if (!gArgs.ParseParameters(argc, argv, error_message)) {
          tfm::format(std::cerr, "Error parsing command line arguments: %s\n", error_message.c_str());
          return false;
      }
      if (argc < 2 || HelpRequested(gArgs)) {
          std::string usage = strprintf("%s gheran-wallet version", PACKAGE_NAME) + " " + FormatFullVersion() + "\n\n" +
                                        "wallet-tool is an offline tool for creating and interacting with Gheran Core wallet files.\n" +
                                        "By default wallet-tool will act on wallets in the default mainnet wallet directory in the datadir.\n" +
                                        "To change the target wallet, use the -datadir, -wallet and -testnet/-regtest arguments.\n\n" +
                                        "Usage:\n" +
                                       "  gheran-wallet [options] <command>\n\n" +
                                       gArgs.GetHelpMessage();
  
          tfm::format(std::cout, "%s", usage.c_str());
          return false;
      }
  
      // check for printtoconsole, allow -debug
      LogInstance().m_print_to_console = gArgs.GetBoolArg("-printtoconsole", gArgs.GetBoolArg("-debug", false));
  
      if (!fs::is_directory(GetDataDir(false))) {
          tfm::format(std::cerr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", "").c_str());
          return false;
      }
      // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
      SelectParams(gArgs.GetChainName());
  
      return true;
  }
  
  int main(int argc, char* argv[])
  {
  #ifdef WIN32
      util::WinCmdLineArgs winArgs;
      std::tie(argc, argv) = winArgs.get();
  #endif
      SetupEnvironment();
      RandomInit();
      try {
          if (!WalletAppInit(argc, argv)) return EXIT_FAILURE;
      } catch (const std::exception& e) {
          PrintExceptionContinue(&e, "WalletAppInit()");
          return EXIT_FAILURE;
      } catch (...) {
          PrintExceptionContinue(nullptr, "WalletAppInit()");
          return EXIT_FAILURE;
      }
  
      std::string method {};
      for(int i = 1; i < argc; ++i) {
          if (!IsSwitchChar(argv[i][0])) {
              if (!method.empty()) {
                  tfm::format(std::cerr, "Error: two methods provided (%s and %s). Only one method should be provided.\n", method.c_str(), argv[i]);
                  return EXIT_FAILURE;
              }
              method = argv[i];
          }
      }
  
      if (method.empty()) {
          tfm::format(std::cerr, "No method provided. Run `gheran-wallet -help` for valid methods.\n");
          return EXIT_FAILURE;
      }
  
      // A name must be provided when creating a file
      if (method == "create" && !gArgs.IsArgSet("-wallet")) {
          tfm::format(std::cerr, "Wallet name must be provided when creating a new wallet.\n");
          return EXIT_FAILURE;
      }
  
      std::string name = gArgs.GetArg("-wallet", "");
  
      ECCVerifyHandle globalVerifyHandle;
      ECC_Start();
      if (!WalletTool::ExecuteWalletToolFunc(method, name))
          return EXIT_FAILURE;
      ECC_Stop();
      return EXIT_SUCCESS;
  }
  