#include "Point.h"

Nan::Persistent<v8::FunctionTemplate> Point2::constructor;
Nan::Persistent<v8::FunctionTemplate> Point3::constructor;

NAN_MODULE_INIT(Point::Init) {
	v8::Local<v8::FunctionTemplate> pt2Ctor = Nan::New<v8::FunctionTemplate>(Point2::New);
	Point2::constructor.Reset(pt2Ctor);
	pt2Ctor->InstanceTemplate()->SetInternalFieldCount(1);
	pt2Ctor->SetClassName(Nan::New("Point2").ToLocalChecked());
	Nan::SetAccessor(pt2Ctor->InstanceTemplate(), Nan::New("x").ToLocalChecked(), Point2::x_getter);
	Nan::SetAccessor(pt2Ctor->InstanceTemplate(), Nan::New("y").ToLocalChecked(), Point2::y_getter);
	Nan::SetPrototypeMethod(pt2Ctor, "norm", Point2::Norm);
	Nan::SetPrototypeMethod(pt2Ctor, "at", Point2::At);
	Point2::Init(pt2Ctor);

	v8::Local<v8::FunctionTemplate> pt3Ctor = Nan::New<v8::FunctionTemplate>(Point3::New);
	Point3::constructor.Reset(pt3Ctor);
	pt3Ctor->InstanceTemplate()->SetInternalFieldCount(1);
	pt3Ctor->SetClassName(Nan::New("Point3").ToLocalChecked());
	Nan::SetAccessor(pt3Ctor->InstanceTemplate(), Nan::New("x").ToLocalChecked(), Point3::x_getter);
	Nan::SetAccessor(pt3Ctor->InstanceTemplate(), Nan::New("y").ToLocalChecked(), Point3::y_getter);
	Nan::SetAccessor(pt3Ctor->InstanceTemplate(), Nan::New("z").ToLocalChecked(), Point3::z_getter);
	Nan::SetPrototypeMethod(pt3Ctor, "norm", Point3::Norm);
	Nan::SetPrototypeMethod(pt3Ctor, "at", Point3::At);
	Point3::Init(pt3Ctor);

  v8::Local<v8::FunctionTemplate> ctor = Nan::New<v8::FunctionTemplate>(Point::New);
  ctor->InstanceTemplate()->SetInternalFieldCount(1);
  ctor->SetClassName(Nan::New("Point").ToLocalChecked());
  Nan::Set(target,Nan::New("Point").ToLocalChecked(), FF::getFunction(ctor));
  Nan::Set(target,Nan::New("Point2").ToLocalChecked(), FF::getFunction(ctor));
  Nan::Set(target,Nan::New("Point3").ToLocalChecked(), FF::getFunction(ctor));
};

NAN_METHOD(Point::New) {
	FF::TryCatch tryCatch("Point::New");
	FF_ASSERT_CONSTRUCT_CALL();
	if (info.Length() < 2) {
		return tryCatch.throwError("expected arguments x, y, (z)");
	}
	double x = info[0]->ToNumber(Nan::GetCurrentContext()).ToLocalChecked()->Value();
	double y = info[1]->ToNumber(Nan::GetCurrentContext()).ToLocalChecked()->Value();
	v8::Local<v8::Value> jsPoint;
	if (info.Length() == 3) {
		double z = info[2]->ToNumber(Nan::GetCurrentContext()).ToLocalChecked()->Value();
		jsPoint = Point3::Converter::wrap(cv::Point3d(x, y, z));
	}
	else {
		jsPoint = Point2::Converter::wrap(cv::Point2d(x, y));
	}
  info.GetReturnValue().Set(jsPoint);
}