// Copyright (c) The NodeRT Contributors
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the ""License""); you may
// not use this file except in compliance with the License. You may obtain a
// copy of the License at http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED ON AN  *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS
// OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY
// IMPLIED WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
//
// See the Apache Version 2.0 License for specific language governing permissions
// and limitations under the License.

// TODO: Verify that this is is still needed..
#define NTDDI_VERSION 0x06010000

#include <v8.h>
#include "nan.h"
#include <string>
#include <ppltasks.h>
#include "CollectionsConverter.h"
#include "CollectionsWrap.h"
#include "node-async.h"
#include "NodeRtUtils.h"
#include "OpaqueWrapper.h"
#include "WrapperBase.h"

#using <Windows.WinMD>

// this undefs fixes the issues of compiling Windows.Data.Json, Windows.Storag.FileProperties, and Windows.Stroage.Search
// Some of the node header files brings windows definitions with the same names as some of the WinRT methods
#undef DocumentProperties
#undef GetObject
#undef CreateEvent
#undef FindText
#undef SendMessage

const char* REGISTRATION_TOKEN_MAP_PROPERTY_NAME = "__registrationTokenMap__";

using v8::Array;
using v8::String;
using v8::Value;
using v8::Boolean;
using v8::Integer;
using v8::FunctionTemplate;
using v8::Object;
using v8::Local;
using v8::Function;
using v8::Date;
using v8::Number;
using v8::PropertyAttribute;
using v8::Primitive;
using Nan::HandleScope;
using Nan::Persistent;
using Nan::Undefined;
using Nan::True;
using Nan::False;
using Nan::Null;
using Nan::MaybeLocal;
using Nan::EscapableHandleScope;
using Nan::HandleScope;
using Nan::TryCatch;
using namespace concurrency;

namespace NodeRT { namespace Windows { namespace Foundation { namespace Collections { 
  v8::Local<v8::Value> WrapIPropertySet(::Windows::Foundation::Collections::IPropertySet^ wintRtInstance);
  ::Windows::Foundation::Collections::IPropertySet^ UnwrapIPropertySet(Local<Value> value);
  
  v8::Local<v8::Value> WrapIVectorChangedEventArgs(::Windows::Foundation::Collections::IVectorChangedEventArgs^ wintRtInstance);
  ::Windows::Foundation::Collections::IVectorChangedEventArgs^ UnwrapIVectorChangedEventArgs(Local<Value> value);
  
  v8::Local<v8::Value> WrapPropertySet(::Windows::Foundation::Collections::PropertySet^ wintRtInstance);
  ::Windows::Foundation::Collections::PropertySet^ UnwrapPropertySet(Local<Value> value);
  
  v8::Local<v8::Value> WrapStringMap(::Windows::Foundation::Collections::StringMap^ wintRtInstance);
  ::Windows::Foundation::Collections::StringMap^ UnwrapStringMap(Local<Value> value);
  
  v8::Local<v8::Value> WrapValueSet(::Windows::Foundation::Collections::ValueSet^ wintRtInstance);
  ::Windows::Foundation::Collections::ValueSet^ UnwrapValueSet(Local<Value> value);
  



  static void InitCollectionChangeEnum(const Local<Object> exports) {
    HandleScope scope;

    Local<Object> enumObject = Nan::New<Object>();

    Nan::Set(exports, Nan::New<String>("CollectionChange").ToLocalChecked(), enumObject);
    Nan::Set(enumObject, Nan::New<String>("reset").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Foundation::Collections::CollectionChange::Reset)));
    Nan::Set(enumObject, Nan::New<String>("itemInserted").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Foundation::Collections::CollectionChange::ItemInserted)));
    Nan::Set(enumObject, Nan::New<String>("itemRemoved").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Foundation::Collections::CollectionChange::ItemRemoved)));
    Nan::Set(enumObject, Nan::New<String>("itemChanged").ToLocalChecked(), Nan::New<Integer>(static_cast<int>(::Windows::Foundation::Collections::CollectionChange::ItemChanged)));
  }



  class IPropertySet : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("IPropertySet").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);






        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("IPropertySet").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      IPropertySet(::Windows::Foundation::Collections::IPropertySet^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Foundation::Collections::IPropertySet^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IPropertySet^>(info[0])) {
        try {
          winRtInstance = (::Windows::Foundation::Collections::IPropertySet^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      IPropertySet *wrapperInstance = new IPropertySet(winRtInstance);
      wrapperInstance->Wrap(info.This());

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


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IPropertySet^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Foundation::Collections::IPropertySet^ winRtInstance;
      try {
        winRtInstance = (::Windows::Foundation::Collections::IPropertySet^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapIPropertySet(winRtInstance));
    }







    private:
      ::Windows::Foundation::Collections::IPropertySet^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapIPropertySet(::Windows::Foundation::Collections::IPropertySet^ wintRtInstance);
      friend ::Windows::Foundation::Collections::IPropertySet^ UnwrapIPropertySet(Local<Value> value);
  };

  Persistent<FunctionTemplate> IPropertySet::s_constructorTemplate;

  v8::Local<v8::Value> WrapIPropertySet(::Windows::Foundation::Collections::IPropertySet^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(IPropertySet::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Foundation::Collections::IPropertySet^ UnwrapIPropertySet(Local<Value> value) {
     return IPropertySet::Unwrap<IPropertySet>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitIPropertySet(Local<Object> exports) {
    IPropertySet::Init(exports);
  }

  class IVectorChangedEventArgs : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("IVectorChangedEventArgs").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);





          
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("collectionChange").ToLocalChecked(), CollectionChangeGetter);
            Nan::SetAccessor(localRef->PrototypeTemplate(), Nan::New<String>("index").ToLocalChecked(), IndexGetter);

        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("IVectorChangedEventArgs").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      IVectorChangedEventArgs(::Windows::Foundation::Collections::IVectorChangedEventArgs^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Foundation::Collections::IVectorChangedEventArgs^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IVectorChangedEventArgs^>(info[0])) {
        try {
          winRtInstance = (::Windows::Foundation::Collections::IVectorChangedEventArgs^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      IVectorChangedEventArgs *wrapperInstance = new IVectorChangedEventArgs(winRtInstance);
      wrapperInstance->Wrap(info.This());

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


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IVectorChangedEventArgs^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Foundation::Collections::IVectorChangedEventArgs^ winRtInstance;
      try {
        winRtInstance = (::Windows::Foundation::Collections::IVectorChangedEventArgs^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapIVectorChangedEventArgs(winRtInstance));
    }





    static void CollectionChangeGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IVectorChangedEventArgs^>(info.This())) {
        return;
      }

      IVectorChangedEventArgs *wrapper = IVectorChangedEventArgs::Unwrap<IVectorChangedEventArgs>(info.This());

      try  {
        ::Windows::Foundation::Collections::CollectionChange result = wrapper->_instance->CollectionChange;
        info.GetReturnValue().Set(Nan::New<Integer>(static_cast<int>(result)));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      
    static void IndexGetter(Local<String> property, const Nan::PropertyCallbackInfo<v8::Value> &info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::IVectorChangedEventArgs^>(info.This())) {
        return;
      }

      IVectorChangedEventArgs *wrapper = IVectorChangedEventArgs::Unwrap<IVectorChangedEventArgs>(info.This());

      try  {
        unsigned int result = wrapper->_instance->Index;
        info.GetReturnValue().Set(Nan::New<Integer>(result));
        return;
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }
    }
      


    private:
      ::Windows::Foundation::Collections::IVectorChangedEventArgs^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapIVectorChangedEventArgs(::Windows::Foundation::Collections::IVectorChangedEventArgs^ wintRtInstance);
      friend ::Windows::Foundation::Collections::IVectorChangedEventArgs^ UnwrapIVectorChangedEventArgs(Local<Value> value);
  };

  Persistent<FunctionTemplate> IVectorChangedEventArgs::s_constructorTemplate;

  v8::Local<v8::Value> WrapIVectorChangedEventArgs(::Windows::Foundation::Collections::IVectorChangedEventArgs^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(IVectorChangedEventArgs::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Foundation::Collections::IVectorChangedEventArgs^ UnwrapIVectorChangedEventArgs(Local<Value> value) {
     return IVectorChangedEventArgs::Unwrap<IVectorChangedEventArgs>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitIVectorChangedEventArgs(Local<Object> exports) {
    IVectorChangedEventArgs::Init(exports);
  }

  class PropertySet : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("PropertySet").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "lookup", Lookup);
            Nan::SetPrototypeMethod(localRef, "hasKey", HasKey);
            Nan::SetPrototypeMethod(localRef, "getView", GetView);
            Nan::SetPrototypeMethod(localRef, "insert", Insert);
            Nan::SetPrototypeMethod(localRef, "remove", Remove);
            Nan::SetPrototypeMethod(localRef, "clear", Clear);
            Nan::SetPrototypeMethod(localRef, "first", First);
          


          
          Nan::SetPrototypeMethod(localRef,"addListener", AddListener);
          Nan::SetPrototypeMethod(localRef,"on", AddListener);
          Nan::SetPrototypeMethod(localRef,"removeListener", RemoveListener);
          Nan::SetPrototypeMethod(localRef, "off", RemoveListener);


        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("PropertySet").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      PropertySet(::Windows::Foundation::Collections::PropertySet^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Foundation::Collections::PropertySet^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info[0])) {
        try {
          winRtInstance = (::Windows::Foundation::Collections::PropertySet^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
      else if (info.Length() == 0)
      {
        try {
          winRtInstance = ref new ::Windows::Foundation::Collections::PropertySet();
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      PropertySet *wrapperInstance = new PropertySet(winRtInstance);
      wrapperInstance->Wrap(info.This());

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


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Foundation::Collections::PropertySet^ winRtInstance;
      try {
        winRtInstance = (::Windows::Foundation::Collections::PropertySet^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapPropertySet(winRtInstance));
    }


    static void Lookup(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          ::Platform::Object^ result;
          result = wrapper->_instance->Lookup(arg0);
          info.GetReturnValue().Set(CreateOpaqueWrapper(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void HasKey(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          bool result;
          result = wrapper->_instance->HasKey(arg0);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void GetView(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IMapView<::Platform::String^, ::Platform::Object^>^ result;
          result = wrapper->_instance->GetView();
          info.GetReturnValue().Set(NodeRT::Collections::MapViewWrapper<::Platform::String^,::Platform::Object^>::CreateMapViewWrapper(result, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](Local<Value> value) -> bool {
              return value->IsString();
            },
            [](Local<Value> value) -> ::Platform::String^ {
              return ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), value)));
            },
            [](::Platform::Object^ val) -> Local<Value> {
              return CreateOpaqueWrapper(val);
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Insert(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 2
        && info[0]->IsString()
        && NodeRT::Utils::IsWinRtWrapperOf<::Platform::Object^>(info[1]))
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          ::Platform::Object^ arg1 = dynamic_cast<::Platform::Object^>(NodeRT::Utils::GetObjectInstance(info[1]));
          
          bool result;
          result = wrapper->_instance->Insert(arg0, arg1);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Remove(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          wrapper->_instance->Remove(arg0);
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Clear(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          wrapper->_instance->Clear();
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void First(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This())) {
        return;
      }

      PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IIterator<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^>^ result;
          result = wrapper->_instance->First();
          info.GetReturnValue().Set(NodeRT::Collections::IteratorWrapper<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^>::CreateIteratorWrapper(result, 
            [](::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^ val) -> Local<Value> {
              return NodeRT::Collections::KeyValuePairWrapper<::Platform::String^,::Platform::Object^>::CreateKeyValuePairWrapper(val, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](::Platform::Object^ val) -> Local<Value> {
              return CreateOpaqueWrapper(val);
            }
          );
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }





    static void AddListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected arguments are eventName(string),callback(function)")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      Local<Function> callback = info[1].As<Function>();

      ::Windows::Foundation::EventRegistrationToken registrationToken;
      if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))
      {
        if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This()))
        {
          Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
      return;
        }
        PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());
      
        try {
          Persistent<Object>* perstPtr = new Persistent<Object>();
          perstPtr->Reset(NodeRT::Utils::CreateCallbackObjectInDomain(callback));
          std::shared_ptr<Persistent<Object>> callbackObjPtr(perstPtr,
            [] (Persistent<Object> *ptr ) {
              NodeUtils::Async::RunOnMain([ptr]() {
                ptr->Reset();
                delete ptr;
            });
          });

          registrationToken = wrapper->_instance->MapChanged::add(
            ref new ::Windows::Foundation::Collections::MapChangedEventHandler<::Platform::String^, ::Platform::Object^>(
            [callbackObjPtr](::Windows::Foundation::Collections::IObservableMap<::Platform::String^, ::Platform::Object^>^ arg0, ::Windows::Foundation::Collections::IMapChangedEventArgs<::Platform::String^>^ arg1) {
              NodeUtils::Async::RunOnMain([callbackObjPtr , arg0, arg1]() {
                HandleScope scope;


                Local<Value> wrappedArg0;
                Local<Value> wrappedArg1;

                {
                  TryCatch tryCatch;


                  wrappedArg0 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IObservableMap`2", arg0);
                  wrappedArg1 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IMapChangedEventArgs`1", arg1);


                  if (wrappedArg0.IsEmpty()) wrappedArg0 = Undefined();
                  if (wrappedArg1.IsEmpty()) wrappedArg1 = Undefined();
                }

                Local<Value> args[] = { wrappedArg0, wrappedArg1 };
                Local<Object> callbackObjLocalRef = Nan::New<Object>(*callbackObjPtr);
                NodeRT::Utils::CallCallbackInDomain(callbackObjLocalRef, _countof(args), args);
              });
            })
          );
        }
        catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }

      }
 else  {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Value> tokenMapVal = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());
      Local<Object> tokenMap;

      if (tokenMapVal.IsEmpty() || Nan::Equals(tokenMapVal, Undefined()).FromMaybe(false)) {
        tokenMap = Nan::New<Object>();
        NodeRT::Utils::SetHiddenValueWithObject(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked(), tokenMap);
      } else {
        tokenMap = Nan::To<Object>(tokenMapVal).ToLocalChecked();
      }

      Nan::Set(tokenMap, info[0], CreateOpaqueWrapper(::Windows::Foundation::PropertyValue::CreateInt64(registrationToken.Value)));
    }

    static void RemoveListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected a string and a callback")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      if ((!NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))) {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Function> callback = info[1].As<Function>();
      Local<Value> tokenMap = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());

      if (tokenMap.IsEmpty() || Nan::Equals(tokenMap, Undefined()).FromMaybe(false)) {
        return;
      }

      Local<Value> opaqueWrapperObj =  Nan::Get(Nan::To<Object>(tokenMap).ToLocalChecked(), info[0]).ToLocalChecked();

      if (opaqueWrapperObj.IsEmpty() || Nan::Equals(opaqueWrapperObj,Undefined()).FromMaybe(false)) {
        return;
      }

      OpaqueWrapper *opaqueWrapper = OpaqueWrapper::Unwrap<OpaqueWrapper>(opaqueWrapperObj.As<Object>());

      long long tokenValue = (long long) opaqueWrapper->GetObjectInstance();
      ::Windows::Foundation::EventRegistrationToken registrationToken;
      registrationToken.Value = tokenValue;

      try  {
        if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str)) {
          if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::PropertySet^>(info.This()))
          {
            Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
            return;
          }
          PropertySet *wrapper = PropertySet::Unwrap<PropertySet>(info.This());
          wrapper->_instance->MapChanged::remove(registrationToken);
        }
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }

      Nan::Delete(Nan::To<Object>(tokenMap).ToLocalChecked(), Nan::To<String>(info[0]).ToLocalChecked());
    }
    private:
      ::Windows::Foundation::Collections::PropertySet^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapPropertySet(::Windows::Foundation::Collections::PropertySet^ wintRtInstance);
      friend ::Windows::Foundation::Collections::PropertySet^ UnwrapPropertySet(Local<Value> value);
  };

  Persistent<FunctionTemplate> PropertySet::s_constructorTemplate;

  v8::Local<v8::Value> WrapPropertySet(::Windows::Foundation::Collections::PropertySet^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(PropertySet::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Foundation::Collections::PropertySet^ UnwrapPropertySet(Local<Value> value) {
     return PropertySet::Unwrap<PropertySet>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitPropertySet(Local<Object> exports) {
    PropertySet::Init(exports);
  }

  class StringMap : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("StringMap").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "lookup", Lookup);
            Nan::SetPrototypeMethod(localRef, "hasKey", HasKey);
            Nan::SetPrototypeMethod(localRef, "getView", GetView);
            Nan::SetPrototypeMethod(localRef, "insert", Insert);
            Nan::SetPrototypeMethod(localRef, "remove", Remove);
            Nan::SetPrototypeMethod(localRef, "clear", Clear);
            Nan::SetPrototypeMethod(localRef, "first", First);
          


          
          Nan::SetPrototypeMethod(localRef,"addListener", AddListener);
          Nan::SetPrototypeMethod(localRef,"on", AddListener);
          Nan::SetPrototypeMethod(localRef,"removeListener", RemoveListener);
          Nan::SetPrototypeMethod(localRef, "off", RemoveListener);


        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("StringMap").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      StringMap(::Windows::Foundation::Collections::StringMap^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Foundation::Collections::StringMap^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info[0])) {
        try {
          winRtInstance = (::Windows::Foundation::Collections::StringMap^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
      else if (info.Length() == 0)
      {
        try {
          winRtInstance = ref new ::Windows::Foundation::Collections::StringMap();
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      StringMap *wrapperInstance = new StringMap(winRtInstance);
      wrapperInstance->Wrap(info.This());

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


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Foundation::Collections::StringMap^ winRtInstance;
      try {
        winRtInstance = (::Windows::Foundation::Collections::StringMap^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapStringMap(winRtInstance));
    }


    static void Lookup(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          Platform::String^ result;
          result = wrapper->_instance->Lookup(arg0);
          info.GetReturnValue().Set(NodeRT::Utils::NewString(result->Data()));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void HasKey(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          bool result;
          result = wrapper->_instance->HasKey(arg0);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void GetView(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IMapView<::Platform::String^, ::Platform::String^>^ result;
          result = wrapper->_instance->GetView();
          info.GetReturnValue().Set(NodeRT::Collections::MapViewWrapper<::Platform::String^,::Platform::String^>::CreateMapViewWrapper(result, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](Local<Value> value) -> bool {
              return value->IsString();
            },
            [](Local<Value> value) -> ::Platform::String^ {
              return ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), value)));
            },
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Insert(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 2
        && info[0]->IsString()
        && info[1]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          Platform::String^ arg1 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[1])));
          
          bool result;
          result = wrapper->_instance->Insert(arg0, arg1);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Remove(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          wrapper->_instance->Remove(arg0);
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Clear(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          wrapper->_instance->Clear();
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void First(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This())) {
        return;
      }

      StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IIterator<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::String^>^>^ result;
          result = wrapper->_instance->First();
          info.GetReturnValue().Set(NodeRT::Collections::IteratorWrapper<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::String^>^>::CreateIteratorWrapper(result, 
            [](::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::String^>^ val) -> Local<Value> {
              return NodeRT::Collections::KeyValuePairWrapper<::Platform::String^,::Platform::String^>::CreateKeyValuePairWrapper(val, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            }
          );
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }





    static void AddListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected arguments are eventName(string),callback(function)")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      Local<Function> callback = info[1].As<Function>();

      ::Windows::Foundation::EventRegistrationToken registrationToken;
      if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))
      {
        if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This()))
        {
          Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
      return;
        }
        StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());
      
        try {
          Persistent<Object>* perstPtr = new Persistent<Object>();
          perstPtr->Reset(NodeRT::Utils::CreateCallbackObjectInDomain(callback));
          std::shared_ptr<Persistent<Object>> callbackObjPtr(perstPtr,
            [] (Persistent<Object> *ptr ) {
              NodeUtils::Async::RunOnMain([ptr]() {
                ptr->Reset();
                delete ptr;
            });
          });

          registrationToken = wrapper->_instance->MapChanged::add(
            ref new ::Windows::Foundation::Collections::MapChangedEventHandler<::Platform::String^, ::Platform::String^>(
            [callbackObjPtr](::Windows::Foundation::Collections::IObservableMap<::Platform::String^, ::Platform::String^>^ arg0, ::Windows::Foundation::Collections::IMapChangedEventArgs<::Platform::String^>^ arg1) {
              NodeUtils::Async::RunOnMain([callbackObjPtr , arg0, arg1]() {
                HandleScope scope;


                Local<Value> wrappedArg0;
                Local<Value> wrappedArg1;

                {
                  TryCatch tryCatch;


                  wrappedArg0 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IObservableMap`2", arg0);
                  wrappedArg1 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IMapChangedEventArgs`1", arg1);


                  if (wrappedArg0.IsEmpty()) wrappedArg0 = Undefined();
                  if (wrappedArg1.IsEmpty()) wrappedArg1 = Undefined();
                }

                Local<Value> args[] = { wrappedArg0, wrappedArg1 };
                Local<Object> callbackObjLocalRef = Nan::New<Object>(*callbackObjPtr);
                NodeRT::Utils::CallCallbackInDomain(callbackObjLocalRef, _countof(args), args);
              });
            })
          );
        }
        catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }

      }
 else  {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Value> tokenMapVal = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());
      Local<Object> tokenMap;

      if (tokenMapVal.IsEmpty() || Nan::Equals(tokenMapVal, Undefined()).FromMaybe(false)) {
        tokenMap = Nan::New<Object>();
        NodeRT::Utils::SetHiddenValueWithObject(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked(), tokenMap);
      } else {
        tokenMap = Nan::To<Object>(tokenMapVal).ToLocalChecked();
      }

      Nan::Set(tokenMap, info[0], CreateOpaqueWrapper(::Windows::Foundation::PropertyValue::CreateInt64(registrationToken.Value)));
    }

    static void RemoveListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected a string and a callback")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      if ((!NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))) {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Function> callback = info[1].As<Function>();
      Local<Value> tokenMap = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());

      if (tokenMap.IsEmpty() || Nan::Equals(tokenMap, Undefined()).FromMaybe(false)) {
        return;
      }

      Local<Value> opaqueWrapperObj =  Nan::Get(Nan::To<Object>(tokenMap).ToLocalChecked(), info[0]).ToLocalChecked();

      if (opaqueWrapperObj.IsEmpty() || Nan::Equals(opaqueWrapperObj,Undefined()).FromMaybe(false)) {
        return;
      }

      OpaqueWrapper *opaqueWrapper = OpaqueWrapper::Unwrap<OpaqueWrapper>(opaqueWrapperObj.As<Object>());

      long long tokenValue = (long long) opaqueWrapper->GetObjectInstance();
      ::Windows::Foundation::EventRegistrationToken registrationToken;
      registrationToken.Value = tokenValue;

      try  {
        if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str)) {
          if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::StringMap^>(info.This()))
          {
            Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
            return;
          }
          StringMap *wrapper = StringMap::Unwrap<StringMap>(info.This());
          wrapper->_instance->MapChanged::remove(registrationToken);
        }
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }

      Nan::Delete(Nan::To<Object>(tokenMap).ToLocalChecked(), Nan::To<String>(info[0]).ToLocalChecked());
    }
    private:
      ::Windows::Foundation::Collections::StringMap^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapStringMap(::Windows::Foundation::Collections::StringMap^ wintRtInstance);
      friend ::Windows::Foundation::Collections::StringMap^ UnwrapStringMap(Local<Value> value);
  };

  Persistent<FunctionTemplate> StringMap::s_constructorTemplate;

  v8::Local<v8::Value> WrapStringMap(::Windows::Foundation::Collections::StringMap^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(StringMap::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Foundation::Collections::StringMap^ UnwrapStringMap(Local<Value> value) {
     return StringMap::Unwrap<StringMap>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitStringMap(Local<Object> exports) {
    StringMap::Init(exports);
  }

  class ValueSet : public WrapperBase {
    public:
      
      static void Init(const Local<Object> exports) {
        HandleScope scope;

        Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(New);
        s_constructorTemplate.Reset(localRef);
        localRef->SetClassName(Nan::New<String>("ValueSet").ToLocalChecked());
        localRef->InstanceTemplate()->SetInternalFieldCount(1);


          
            Nan::SetPrototypeMethod(localRef, "lookup", Lookup);
            Nan::SetPrototypeMethod(localRef, "hasKey", HasKey);
            Nan::SetPrototypeMethod(localRef, "getView", GetView);
            Nan::SetPrototypeMethod(localRef, "insert", Insert);
            Nan::SetPrototypeMethod(localRef, "remove", Remove);
            Nan::SetPrototypeMethod(localRef, "clear", Clear);
            Nan::SetPrototypeMethod(localRef, "first", First);
          


          
          Nan::SetPrototypeMethod(localRef,"addListener", AddListener);
          Nan::SetPrototypeMethod(localRef,"on", AddListener);
          Nan::SetPrototypeMethod(localRef,"removeListener", RemoveListener);
          Nan::SetPrototypeMethod(localRef, "off", RemoveListener);


        Local<Object> constructor = Nan::To<Object>(Nan::GetFunction(localRef).ToLocalChecked()).ToLocalChecked();
        Nan::SetMethod(constructor, "castFrom", CastFrom);



        Nan::Set(exports, Nan::New<String>("ValueSet").ToLocalChecked(), constructor);
      }

      virtual ::Platform::Object^ GetObjectInstance() const override {
        return _instance;
      }

    private:

      ValueSet(::Windows::Foundation::Collections::ValueSet^ instance) {
        _instance = instance;
      }

      
    static void New(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(s_constructorTemplate);

      // in case the constructor was called without the new operator
      if (!localRef->HasInstance(info.This())) {
        if (info.Length() > 0) {
          std::unique_ptr<Local<Value> []> constructorArgs(new Local<Value>[info.Length()]);

          Local<Value> *argsPtr = constructorArgs.get();
          for (int i = 0; i < info.Length(); i++) {
            argsPtr[i] = info[i];
          }

          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), constructorArgs.get());
          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        } else {
          MaybeLocal<Object> res = Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(), info.Length(), nullptr);

          if (res.IsEmpty()) {
            return;
          }

          info.GetReturnValue().Set(res.ToLocalChecked());
          return;
        }
      }

      ::Windows::Foundation::Collections::ValueSet^ winRtInstance;


      if (info.Length() == 1 && OpaqueWrapper::IsOpaqueWrapper(info[0]) &&
        NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info[0])) {
        try {
          winRtInstance = (::Windows::Foundation::Collections::ValueSet^) NodeRT::Utils::GetObjectInstance(info[0]);
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
      else if (info.Length() == 0)
      {
        try {
          winRtInstance = ref new ::Windows::Foundation::Collections::ValueSet();
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no suitable constructor found")));
        return;
      }

      NodeRT::Utils::SetHiddenValue(info.This(), Nan::New<String>("__winRtInstance__").ToLocalChecked(), True());

      ValueSet *wrapperInstance = new ValueSet(winRtInstance);
      wrapperInstance->Wrap(info.This());

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


      
    static void CastFrom(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;
      if (info.Length() < 1 || !NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info[0])) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Invalid arguments, no object provided, or given object could not be casted to requested type")));
        return;
      }

      ::Windows::Foundation::Collections::ValueSet^ winRtInstance;
      try {
        winRtInstance = (::Windows::Foundation::Collections::ValueSet^) NodeRT::Utils::GetObjectInstance(info[0]);
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
        return;
      }

      info.GetReturnValue().Set(WrapValueSet(winRtInstance));
    }


    static void Lookup(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          ::Platform::Object^ result;
          result = wrapper->_instance->Lookup(arg0);
          info.GetReturnValue().Set(CreateOpaqueWrapper(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void HasKey(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          bool result;
          result = wrapper->_instance->HasKey(arg0);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void GetView(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IMapView<::Platform::String^, ::Platform::Object^>^ result;
          result = wrapper->_instance->GetView();
          info.GetReturnValue().Set(NodeRT::Collections::MapViewWrapper<::Platform::String^,::Platform::Object^>::CreateMapViewWrapper(result, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](Local<Value> value) -> bool {
              return value->IsString();
            },
            [](Local<Value> value) -> ::Platform::String^ {
              return ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), value)));
            },
            [](::Platform::Object^ val) -> Local<Value> {
              return CreateOpaqueWrapper(val);
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Insert(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 2
        && info[0]->IsString()
        && NodeRT::Utils::IsWinRtWrapperOf<::Platform::Object^>(info[1]))
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          ::Platform::Object^ arg1 = dynamic_cast<::Platform::Object^>(NodeRT::Utils::GetObjectInstance(info[1]));
          
          bool result;
          result = wrapper->_instance->Insert(arg0, arg1);
          info.GetReturnValue().Set(Nan::New<Boolean>(result));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Remove(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 1
        && info[0]->IsString())
      {
        try
        {
          Platform::String^ arg0 = ref new Platform::String(NodeRT::Utils::StringToWchar(v8::String::Value(v8::Isolate::GetCurrent(), info[0])));
          
          wrapper->_instance->Remove(arg0);
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void Clear(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          wrapper->_instance->Clear();
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }
    static void First(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This())) {
        return;
      }

      ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());

      if (info.Length() == 0)
      {
        try
        {
          ::Windows::Foundation::Collections::IIterator<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^>^ result;
          result = wrapper->_instance->First();
          info.GetReturnValue().Set(NodeRT::Collections::IteratorWrapper<::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^>::CreateIteratorWrapper(result, 
            [](::Windows::Foundation::Collections::IKeyValuePair<::Platform::String^, ::Platform::Object^>^ val) -> Local<Value> {
              return NodeRT::Collections::KeyValuePairWrapper<::Platform::String^,::Platform::Object^>::CreateKeyValuePairWrapper(val, 
            [](::Platform::String^ val) -> Local<Value> {
              return NodeRT::Utils::NewString(val->Data());
            },
            [](::Platform::Object^ val) -> Local<Value> {
              return CreateOpaqueWrapper(val);
            }
          );
            }
          ));
          return;
        } catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }
      }
 else {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"Bad arguments: no suitable overload found")));
        return;
      }
    }





    static void AddListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected arguments are eventName(string),callback(function)")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      Local<Function> callback = info[1].As<Function>();

      ::Windows::Foundation::EventRegistrationToken registrationToken;
      if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))
      {
        if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This()))
        {
          Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
      return;
        }
        ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());
      
        try {
          Persistent<Object>* perstPtr = new Persistent<Object>();
          perstPtr->Reset(NodeRT::Utils::CreateCallbackObjectInDomain(callback));
          std::shared_ptr<Persistent<Object>> callbackObjPtr(perstPtr,
            [] (Persistent<Object> *ptr ) {
              NodeUtils::Async::RunOnMain([ptr]() {
                ptr->Reset();
                delete ptr;
            });
          });

          registrationToken = wrapper->_instance->MapChanged::add(
            ref new ::Windows::Foundation::Collections::MapChangedEventHandler<::Platform::String^, ::Platform::Object^>(
            [callbackObjPtr](::Windows::Foundation::Collections::IObservableMap<::Platform::String^, ::Platform::Object^>^ arg0, ::Windows::Foundation::Collections::IMapChangedEventArgs<::Platform::String^>^ arg1) {
              NodeUtils::Async::RunOnMain([callbackObjPtr , arg0, arg1]() {
                HandleScope scope;


                Local<Value> wrappedArg0;
                Local<Value> wrappedArg1;

                {
                  TryCatch tryCatch;


                  wrappedArg0 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IObservableMap`2", arg0);
                  wrappedArg1 = NodeRT::Utils::CreateExternalWinRTObject("Windows.Foundation.Collections", "IMapChangedEventArgs`1", arg1);


                  if (wrappedArg0.IsEmpty()) wrappedArg0 = Undefined();
                  if (wrappedArg1.IsEmpty()) wrappedArg1 = Undefined();
                }

                Local<Value> args[] = { wrappedArg0, wrappedArg1 };
                Local<Object> callbackObjLocalRef = Nan::New<Object>(*callbackObjPtr);
                NodeRT::Utils::CallCallbackInDomain(callbackObjLocalRef, _countof(args), args);
              });
            })
          );
        }
        catch (Platform::Exception ^exception) {
          NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
          return;
        }

      }
 else  {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Value> tokenMapVal = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());
      Local<Object> tokenMap;

      if (tokenMapVal.IsEmpty() || Nan::Equals(tokenMapVal, Undefined()).FromMaybe(false)) {
        tokenMap = Nan::New<Object>();
        NodeRT::Utils::SetHiddenValueWithObject(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked(), tokenMap);
      } else {
        tokenMap = Nan::To<Object>(tokenMapVal).ToLocalChecked();
      }

      Nan::Set(tokenMap, info[0], CreateOpaqueWrapper(::Windows::Foundation::PropertyValue::CreateInt64(registrationToken.Value)));
    }

    static void RemoveListener(Nan::NAN_METHOD_ARGS_TYPE info) {
      HandleScope scope;

      if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
        Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"wrong arguments, expected a string and a callback")));
        return;
      }

      String::Value eventName(v8::Isolate::GetCurrent(), info[0]);
      auto str = *eventName;

      if ((!NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str))) {
        Nan::ThrowError(Nan::Error(String::Concat(v8::Isolate::GetCurrent(), NodeRT::Utils::NewString(L"given event name isn't supported: "), info[0].As<String>())));
        return;
      }

      Local<Function> callback = info[1].As<Function>();
      Local<Value> tokenMap = NodeRT::Utils::GetHiddenValue(callback, Nan::New<String>(REGISTRATION_TOKEN_MAP_PROPERTY_NAME).ToLocalChecked());

      if (tokenMap.IsEmpty() || Nan::Equals(tokenMap, Undefined()).FromMaybe(false)) {
        return;
      }

      Local<Value> opaqueWrapperObj =  Nan::Get(Nan::To<Object>(tokenMap).ToLocalChecked(), info[0]).ToLocalChecked();

      if (opaqueWrapperObj.IsEmpty() || Nan::Equals(opaqueWrapperObj,Undefined()).FromMaybe(false)) {
        return;
      }

      OpaqueWrapper *opaqueWrapper = OpaqueWrapper::Unwrap<OpaqueWrapper>(opaqueWrapperObj.As<Object>());

      long long tokenValue = (long long) opaqueWrapper->GetObjectInstance();
      ::Windows::Foundation::EventRegistrationToken registrationToken;
      registrationToken.Value = tokenValue;

      try  {
        if (NodeRT::Utils::CaseInsenstiveEquals(L"mapChanged", str)) {
          if (!NodeRT::Utils::IsWinRtWrapperOf<::Windows::Foundation::Collections::ValueSet^>(info.This()))
          {
            Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"The caller of this method isn't of the expected type or internal WinRt object was disposed")));
            return;
          }
          ValueSet *wrapper = ValueSet::Unwrap<ValueSet>(info.This());
          wrapper->_instance->MapChanged::remove(registrationToken);
        }
      } catch (Platform::Exception ^exception) {
        NodeRT::Utils::ThrowWinRtExceptionInJs(exception);
      }

      Nan::Delete(Nan::To<Object>(tokenMap).ToLocalChecked(), Nan::To<String>(info[0]).ToLocalChecked());
    }
    private:
      ::Windows::Foundation::Collections::ValueSet^ _instance;
      static Persistent<FunctionTemplate> s_constructorTemplate;

      friend v8::Local<v8::Value> WrapValueSet(::Windows::Foundation::Collections::ValueSet^ wintRtInstance);
      friend ::Windows::Foundation::Collections::ValueSet^ UnwrapValueSet(Local<Value> value);
  };

  Persistent<FunctionTemplate> ValueSet::s_constructorTemplate;

  v8::Local<v8::Value> WrapValueSet(::Windows::Foundation::Collections::ValueSet^ winRtInstance) {
    EscapableHandleScope scope;

    if (winRtInstance == nullptr) {
      return scope.Escape(Undefined());
    }

    Local<Value> opaqueWrapper = CreateOpaqueWrapper(winRtInstance);
    Local<Value> args[] = {opaqueWrapper};
    Local<FunctionTemplate> localRef = Nan::New<FunctionTemplate>(ValueSet::s_constructorTemplate);
    return scope.Escape(Nan::NewInstance(Nan::GetFunction(localRef).ToLocalChecked(),_countof(args), args).ToLocalChecked());
  }

  ::Windows::Foundation::Collections::ValueSet^ UnwrapValueSet(Local<Value> value) {
     return ValueSet::Unwrap<ValueSet>(Nan::To<Object>(value).ToLocalChecked())->_instance;
  }

  void InitValueSet(Local<Object> exports) {
    ValueSet::Init(exports);
  }


} } } } 

NAN_MODULE_INIT(init) {
  // We ignore failures for now since it probably means that
  // the initialization already happened for STA, and that's cool

  CoInitializeEx(nullptr, COINIT_MULTITHREADED);

  /*
  if (FAILED(CoInitializeEx(nullptr, COINIT_MULTITHREADED))) {
    Nan::ThrowError(Nan::Error(NodeRT::Utils::NewString(L"error in CoInitializeEx()")));
    return;
  }
  */

      NodeRT::Windows::Foundation::Collections::InitCollectionChangeEnum(target);
      NodeRT::Windows::Foundation::Collections::InitIPropertySet(target);
      NodeRT::Windows::Foundation::Collections::InitIVectorChangedEventArgs(target);
      NodeRT::Windows::Foundation::Collections::InitPropertySet(target);
      NodeRT::Windows::Foundation::Collections::InitStringMap(target);
      NodeRT::Windows::Foundation::Collections::InitValueSet(target);


  NodeRT::Utils::RegisterNameSpace("Windows.Foundation.Collections", target);
}



NODE_MODULE(binding, init)