#import "MLNMapView+Impl.h"
#import "MLNMapView_Private.h"

#include <mbgl/gfx/renderable.hpp>
#include <mbgl/gl/renderer_backend.hpp>

@class MLNMapViewImplDelegate;

/// Adapter responsible for bridging calls from mbgl to MLNMapView and Cocoa.
class MLNMapViewOpenGLImpl final : public MLNMapViewImpl,
                                   public mbgl::gl::RendererBackend,
                                   public mbgl::gfx::Renderable {
 public:
  MLNMapViewOpenGLImpl(MLNMapView*);
  ~MLNMapViewOpenGLImpl() override;

 public:
  void restoreFramebufferBinding();

#ifdef MLN_RECREATE_GL_IN_AN_EMERGENCY
 private:
  void emergencyRecreateGL();
#endif

  // Implementation of mbgl::gfx::RendererBackend
 public:
  mbgl::gfx::Renderable& getDefaultRenderable() override { return *this; }

 private:
  void activate() override;
  void deactivate() override;
  // End implementation of mbgl::gfx::RendererBackend

  // Implementation of mbgl::gl::RendererBackend
 public:
  void updateAssumedState() override;

 private:
  mbgl::gl::ProcAddress getExtensionFunctionPointer(const char* name) override;
  // End implementation of mbgl::gl::Rendererbackend

  // Implementation of MLNMapViewImpl
 public:
  mbgl::gfx::RendererBackend& getRendererBackend() override { return *this; }

  EAGLContext* getEAGLContext() override;
  void setOpaque(bool) override;
  void display() override;
  void setPresentsWithTransaction(bool) override;
  void createView() override;
  UIView* getView() override;
  void deleteView() override;
  UIImage* snapshot() override;
  void layoutChanged() override;
  MLNBackendResource* getObject() override;
  // End implementation of MLNMapViewImpl
};