/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2023 Osimis S.A., Belgium
 * Copyright (C) 2024-2026 Orthanc Team SRL, Belgium
 * Copyright (C) 2021-2026 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, 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
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#include "../../Framework/PrecompiledHeadersWSI.h"
#include "CachedUserFeatures.h"

#include "../ViewerConfiguration.h"


namespace OrthancWSI
{
  Orthanc::SharedObjectCache& CachedUserFeatures::GetCache()
  {
    static boost::mutex  mutex;
    static std::unique_ptr<Orthanc::SharedObjectCache>  cache;

    {
      boost::mutex::scoped_lock lock(mutex);

      if (cache.get() == NULL)
      {
        const unsigned int cacheSize = ViewerConfiguration::GetInstance().GetFeaturesCacheSize();
        cache.reset(new Orthanc::SharedObjectCache(cacheSize));
      }

      return *cache;
    }
  }


  CachedUserFeatures::CachedUserFeatures(const AnnotationsWorkspaceId& id,
                                         const UserId& user)
  {
    const std::string key = id.GetFeaturesKey(user);

    cached_ = GetCache().GetCachedValue(key);

    if (cached_.get() == NULL)
    {
      cached_.reset(new UserFeatures(key));
      GetCache().Store(key, cached_, 1);
    }
  }
}