/**
 * Stone of Orthanc
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2020 Osimis S.A., 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/>.
 **/


#pragma once

#include "../Deprecated/Toolbox/DicomFrameConverter.h"
#include "RadiographyLayer.h"

#include <FullOrthancDataset.h>

namespace OrthancStone
{
  class RadiographyScene;

  class RadiographyDicomLayer : public RadiographyLayer
  {
  private:
    std::unique_ptr<Orthanc::ImageAccessor>  source_;  // Content of PixelData
    std::unique_ptr<Deprecated::DicomFrameConverter>     converter_;
    std::unique_ptr<Orthanc::ImageAccessor>  converted_;  // Float32
    std::string                            instanceId_;
    unsigned int                           frame_;

    void ApplyConverter();

  public:
    RadiographyDicomLayer(const RadiographyScene& scene);

    void SetInstance(const std::string& instanceId, unsigned int frame)
    {
      instanceId_ = instanceId;
      frame_ = frame;
    }

    std::string GetInstanceId() const
    {
      return instanceId_;
    }

    unsigned int GetFrame() const
    {
      return frame_;
    }

    virtual size_t GetApproximateMemoryUsage() const
    {
      size_t size = 0;
      if (source_.get() != NULL)
      {
        size += source_->GetPitch() * source_->GetHeight();
      }
      if (converted_.get() != NULL)
      {
        size += converted_->GetPitch() * converted_->GetHeight();
      }

      return size;
    }


    void SetDicomTags(const OrthancPlugins::FullOrthancDataset& dataset);

    void SetSourceImage(Orthanc::ImageAccessor* image);   // Takes ownership

    void SetSourceImage(Orthanc::ImageAccessor* image, double newPixelSpacingX, double newPixelSpacingY, bool emitLayerEditedEvent = true);   // Takes ownership

    const Orthanc::ImageAccessor* GetSourceImage() const {return source_.get();}  // currently need this access to serialize scene in plain old data to send to a WASM worker

    const Deprecated::DicomFrameConverter& GetDicomFrameConverter() const {return *converter_;} // currently need this access to serialize scene in plain old data to send to a WASM worker
    
     // Takes ownership
    void SetDicomFrameConverter(Deprecated::DicomFrameConverter* converter);

    virtual void Render(Orthanc::ImageAccessor& buffer,
                        const AffineTransform2D& viewTransform,
                        ImageInterpolation interpolation,
                        float windowCenter,
                        float windowWidth,
                        bool applyWindowing) const;

    virtual bool GetDefaultWindowing(float& center,
                                     float& width) const;

    virtual bool GetRange(float& minValue,
                          float& maxValue) const;
  };
}