/*
 * @project      The CERN Tape Archive (CTA)
 * @copyright    Copyright © 2021-2023 CERN
 * @license      This program is free software, distributed under the terms of the GNU General Public
 *               Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING". You can
 *               redistribute it and/or modify it under the terms of the GPL Version 3, or (at your
 *               option) any later version.
 *
 *               This program is distributed in the hope that it will be useful, but WITHOUT ANY
 *               WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 *               PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 *               In applying this licence, CERN does not waive the privileges and immunities
 *               granted to it by virtue of its status as an Intergovernmental Organization or
 *               submit itself to any jurisdiction.
 */

#pragma once

#include <string>
#include <istream>
#include <ostream>

namespace cta::frontend::grpc::server {

/**
 * Class to store the command-line arguments of the command-line tool
 * named cta-frontend-async-grpc.
 */
class FrontendCmd {
public:
  /**
   * Constructor that parses the specified command-line arguments.
   *
   * @param argc The number of command-line arguments including the name of the
   * executable.
   * @param argv The vector of command-line arguments.
   */
  FrontendCmd(std::istream &inStream, std::ostream &outStream, std::ostream &errStream) noexcept;
  ~FrontendCmd() noexcept = default;
  /**
   * The object's implementation of main() that should be called from the main()
   * of the program.
   *
   * @param argc The number of command-line arguments including the program name.
   * @param argv The command-line arguments.
   * @return The exit value of the program.
   */
  int main(const int argc, char** argv);

private:
  std::istream &m_in; // Standard input stream
  std::ostream &m_out; // Standard output stream
  std::ostream &m_err; // Standard error stream
  
  std::string m_strExecName; // Executable name of this program
  
  // Print usage help
  void printUsage(std::ostream &osHelp) const;

};

} // namespace cta::frontend::grpc::server