text: // Copyright (c) 2016-2020 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 <logging.h>
  #include <util/system.h>
  #include <util/translation.h>
  #include <util/url.h>
  #include <wallet/wallettool.h>
  
  #include <functional>
  
  const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr;
  UrlDecodeFn* const URL_DECODE = nullptr;
  
  static void SetupWalletToolArgs(ArgsManager& argsman)
  {
      SetupHelpOptions(argsman);
      SetupChainParamsBaseOptions(argsman);
  
      argsman.AddArg("-version", "Print version and exit", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
      argsman.AddArg("-datadir=<dir>", "Specify data directory", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
      argsman.AddArg("-wallet=<wallet-name>", "Specify wallet name", ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY, OptionsCategory::OPTIONS);
      argsman.AddArg("-debug=<category>", "Output debugging information (default: 0).", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
      argsman.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -debug is true, 0 otherwise).", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
  
      argsman.AddArg("info", "Get wallet info", ArgsManager::ALLOW_ANY, OptionsCategory::COMMANDS);
      argsman.AddArg("create", "Create new wallet file", ArgsManager::ALLOW_ANY, OptionsCategory::COMMANDS);
      argsman.AddArg("salvage", "Attempt to recover private keys from a corrupt wallet. Warning: 'salvage' is experimental.", ArgsManager::ALLOW_ANY, OptionsCategory::COMMANDS);
  }
  
  static bool WalletAppInit(int argc, char* argv[])
  {
      SetupWalletToolArgs(gArgs);
      std::string error_message;
      if (!gArgs.ParseParameters(argc, argv, error_message)) {
          tfm::format(std::cerr, "Error parsing command line arguments: %s\n", error_message);
          return false;
      }
      if (argc < 2 || HelpRequested(gArgs) || gArgs.IsArgSet("-version")) {
          std::string strUsage = strprintf("%s bitcoin-wallet version", PACKAGE_NAME) + " " + FormatFullVersion() + "\n";
              if (!gArgs.IsArgSet("-version")) {
                  strUsage += "\n"
                      "bitcoin-wallet is an offline tool for creating and interacting with " PACKAGE_NAME " wallet files.\n"
                      "By default bitcoin-wallet 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"
                      "  bitcoin-wallet [options] <command>\n";
                  strUsage += "\n" + gArgs.GetHelpMessage();
              }
          tfm::format(std::cout, "%s", strUsage);
          return false;
      }
  
      // check for printtoconsole, allow -debug
      LogInstance().m_print_to_console = gArgs.GetBoolArg("-printtoconsole", gArgs.GetBoolArg("-debug", false));
  
      if (!CheckDataDirOption()) {
          tfm::format(std::cerr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", ""));
          return false;
      }
      // Check for chain settings (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, argv[i]);
                  return EXIT_FAILURE;
              }
              method = argv[i];
          }
      }
  
      if (method.empty()) {
          tfm::format(std::cerr, "No method provided. Run `bitcoin-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;
  }
  