/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2018 Osimis S.A., Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#include "PrecompiledHeaders.h"
#include "TemporaryFile.h"

#include "SystemToolbox.h"
#include "Toolbox.h"

#include <boost/filesystem.hpp>

namespace Orthanc
{
  static std::string CreateTemporaryPath(const char* extension)
  {
#if BOOST_HAS_FILESYSTEM_V3 == 1
    boost::filesystem::path tmpDir = boost::filesystem::temp_directory_path();
#elif defined(__linux__)
    boost::filesystem::path tmpDir("/tmp");
#else
#error Support your platform here
#endif

    // We use UUID to create unique path to temporary files
    std::string filename = "Orthanc-" + Orthanc::Toolbox::GenerateUuid();

    if (extension != NULL)
    {
      filename.append(extension);
    }

    tmpDir /= filename;
    return tmpDir.string();
  }


  TemporaryFile::TemporaryFile() : 
    path_(CreateTemporaryPath(NULL))
  {
  }


  TemporaryFile::TemporaryFile(const char* extension) :
    path_(CreateTemporaryPath(extension))
  {
  }


  TemporaryFile::~TemporaryFile()
  {
    boost::filesystem::remove(path_);
  }


  void TemporaryFile::Write(const std::string& content)
  {
    SystemToolbox::WriteFile(content, path_);
  }


  void TemporaryFile::Read(std::string& content) const
  {
    SystemToolbox::ReadFile(content, path_);
  }
}