#include "opencv_modules.h"

#ifdef HAVE_OPENCV_FEATURES2D

#include "KeyPointMatch.h"

Nan::Persistent<v8::FunctionTemplate> KeyPointMatch::constructor;

NAN_MODULE_INIT(KeyPointMatch::Init) {
  v8::Local<v8::FunctionTemplate> ctor = Nan::New<v8::FunctionTemplate>(KeyPointMatch::New);
  constructor.Reset(ctor);
  ctor->InstanceTemplate()->SetInternalFieldCount(1);
  ctor->SetClassName(Nan::New("KeyPointMatch").ToLocalChecked());

  Nan::SetAccessor(ctor->InstanceTemplate(), Nan::New("kpFrom").ToLocalChecked(), GetKpFrom);
  Nan::SetAccessor(ctor->InstanceTemplate(), Nan::New("kpTo").ToLocalChecked(), GetKpTo);
  Nan::SetAccessor(ctor->InstanceTemplate(), Nan::New("distance").ToLocalChecked(), GetDistance);

  Nan::Set(target,Nan::New("KeyPointMatch").ToLocalChecked(), FF::getFunction(ctor));
};

NAN_METHOD(KeyPointMatch::New) {
	FF::TryCatch tryCatch("KeyPointMatch::New");
	FF_ASSERT_CONSTRUCT_CALL();
  if (info.Length() > 0) {
    // TODO check args
    KeyPointMatch *keyPointMatch = new KeyPointMatch();
    keyPointMatch->setNativeProps(
      Nan::ObjectWrap::Unwrap<KeyPoint>(info[0]->ToObject(Nan::GetCurrentContext()).ToLocalChecked()),
      Nan::ObjectWrap::Unwrap<KeyPoint>(info[1]->ToObject(Nan::GetCurrentContext()).ToLocalChecked()),
      (float)info[2]->ToNumber(Nan::GetCurrentContext()).ToLocalChecked()->Value()
    );
    keyPointMatch->Wrap(info.Holder());
  } else {
    (new KeyPointMatch())->Wrap(info.Holder());
  }

  info.GetReturnValue().Set(info.Holder());
}

NAN_GETTER(KeyPointMatch::GetKpFrom) {
  info.GetReturnValue().Set(Nan::New(Nan::ObjectWrap::Unwrap<KeyPointMatch>(info.This())->kpFrom));
}

NAN_GETTER(KeyPointMatch::GetKpTo) {
  info.GetReturnValue().Set(Nan::New(Nan::ObjectWrap::Unwrap<KeyPointMatch>(info.This())->kpTo));
}

NAN_GETTER(KeyPointMatch::GetDistance) {
  info.GetReturnValue().Set(Nan::ObjectWrap::Unwrap<KeyPointMatch>(info.This())->distance);
}

void KeyPointMatch::setNativeProps(KeyPoint* kpFrom, KeyPoint* kpTo, float distance) {
  this->kpFrom.Reset(kpFrom->persistent());
  this->kpTo.Reset(kpTo->persistent());
  this->distance = distance;
}

#endif