/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2019 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/>.
 **/


#pragma once

#if !defined(ORTHANC_SANDBOXED)
#  error The macro ORTHANC_SANDBOXED must be defined
#endif

#if ORTHANC_SANDBOXED == 1
#  error The class FilesystemStorage cannot be used in sandboxed environments
#endif

#include "IStorageArea.h"

#include <stdint.h>
#include <boost/filesystem.hpp>
#include <set>

namespace Orthanc
{
  class FilesystemStorage : public IStorageArea
  {
    // TODO REMOVE THIS
    friend class FilesystemHttpSender;
    friend class FileStorageAccessor;

  private:
    boost::filesystem::path root_;

    boost::filesystem::path GetPath(const std::string& uuid) const;

  public:
    explicit FilesystemStorage(std::string root);

    virtual void Create(const std::string& uuid,
                        const void* content, 
                        size_t size,
                        FileContentType type);

    virtual void Read(std::string& content,
                      const std::string& uuid,
                      FileContentType type);

    virtual void Remove(const std::string& uuid,
                        FileContentType type);

    void ListAllFiles(std::set<std::string>& result) const;

    uintmax_t GetSize(const std::string& uuid) const;

    void Clear();

    uintmax_t GetCapacity() const;

    uintmax_t GetAvailableSpace() const;
  };
}
