//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
// Copyright (c) 2014-2019, Lawrence Livermore National Security, LLC.
//
// Produced at the Lawrence Livermore National Laboratory
//
// LLNL-CODE-666778
//
// All rights reserved.
//
// This file is part of Conduit.
//
// For details, see: http://software.llnl.gov/conduit/.
//
// Please also read conduit/LICENSE
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the disclaimer below.
//
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the disclaimer (as noted below) in the
//   documentation and/or other materials provided with the distribution.
//
// * Neither the name of the LLNS/LLNL 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
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// LLC, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR ANY
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// POSSIBILITY OF SUCH DAMAGE.
//
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
#ifndef catalyst_conduit_error_hpp
#define catalyst_conduit_error_hpp

#include <exception>
#include <iostream>
#include <sstream>
#include <string>

#include <conduit.h>

#if __cplusplus >= 201703L
#define CATALYST_CONDUIT_ERROR_NODISCARD [[nodiscard]]
#else
#define CATALYST_CONDUIT_ERROR_NODISCARD
#endif

namespace conduit_cpp
{
class Error : public std::exception
{
public:
  Error()
    : m_line(0)
  {
    m_what = message();
  }

  Error(const Error& err)
    : m_msg(err.m_msg)
    , m_file(err.m_file)
    , m_line(err.m_line)
  {
    m_what = message();
  }

  Error(std::string msg, std::string file, conduit_index_t line)
    : m_msg(std::move(msg))
    , m_file(std::move(file))
    , m_line(line)
  {
    m_what = message();
  }

  ~Error() noexcept override = default;

  void print() const { std::cout << message() << '\n'; }

  CATALYST_CONDUIT_ERROR_NODISCARD std::string message() const
  {
    std::ostringstream oss;
    message(oss);
    return oss.str();
  }

  void message(std::ostringstream& oss) const
  {
    oss << '\n'
        << m_msg
        << "\n"
           "file: "
        << m_file
        << "\n"
           "line: "
        << m_line << '\n';
  }

  CATALYST_CONDUIT_ERROR_NODISCARD const char* what() const noexcept override
  {
    return m_what.c_str();
  }

private:
  std::string m_msg;
  std::string m_file;
  conduit_index_t m_line;
  std::string m_what;
};

}

#endif
