FrameHostObject.h

#pragma once

#import <jsi/jsi.h>
#import <CoreMedia/CMSampleBuffer.h>
#import "Frame.h"

using namespace facebook;

class JSI_EXPORT FrameHostObject: public jsi::HostObject {
public:
  explicit FrameHostObject(Frame* frame): frame(frame) {}

public:
  // By overriding the get and getPropertyNames functions, 
  //    properties can be used as JS object property.
  // For example, when frame.height is requested, 
  //    the get method here is called by setting the name property "height" below.
  jsi::Value get(jsi::Runtime&, const jsi::PropNameID& name) override;
  std::vector<jsi::PropNameID> getPropertyNames(jsi::Runtime& rt) override;
  void close();

public:
  // We cannot access directly to frame object
  //    Because this is C++ object and JS doesn't know how to interact with this object.
  //    Instead we use the get methods above.
  Frame* frame;
  
private:
  void assertIsFrameStrong(jsi::Runtime& runtime, const std::string& accessedPropName);
};