#pragma once
#include "Resource.h"
#include "cru/base/io/Stream.h"

namespace cru::platform::graphics {
enum class ImageFormat { Jpeg, Png, Gif };

struct CRU_PLATFORM_GRAPHICS_API IImageFactory
    : public virtual IGraphicsResource {
  virtual std::unique_ptr<IImage> DecodeFromStream(io::Stream* stream) = 0;

  /**
   *  \brief Encode an image to a stream.
   *  \param image The image to encode.
   *  \param stream The stream to write to.
   *  \param format The format to encode to.
   *  \param quality The quality to encode to.
   *  \todo Implement on Windows.
   */
  virtual void EncodeToStream(IImage* image, io::Stream* stream,
                              ImageFormat format, float quality) = 0;

  /**
   * \brief Create an empty bitmap with given width and height.
   * \remarks Implementation should ensure that the bitmap supports alpha
   * channel. It had better be in 32-bit rgba format.
   */
  virtual std::unique_ptr<IImage> CreateBitmap(int width, int height) = 0;
};
}  // namespace cru::platform::graphics