// @lint-ignore-every LICENSELINT
// Copyright Epic Games, Inc. All Rights Reserved.

#include "OculusXRInputModule.h"

#if OCULUS_INPUT_SUPPORTED_PLATFORMS
#include "OculusXRInput.h"
#include "OculusXRHMDModule.h"

#define LOCTEXT_NAMESPACE "OculusXRInput"

//-------------------------------------------------------------------------------------------------
// FOculusXRInputModule
//-------------------------------------------------------------------------------------------------

void FOculusXRInputModule::StartupModule()
{
	IInputDeviceModule::StartupModule();
	OculusXRInput::FOculusXRInput::PreInit();
}

TSharedPtr<class IInputDevice> FOculusXRInputModule::CreateInputDevice(const TSharedRef<FGenericApplicationMessageHandler>& InMessageHandler)
{
	if (IOculusXRHMDModule::IsAvailable())
	{
		if (FOculusXRHMDModule::Get().PreInit())
		{
			TSharedPtr<OculusXRInput::FOculusXRInput> InputDevice(new OculusXRInput::FOculusXRInput(InMessageHandler));
			OculusXRInputDevice = InputDevice;
			return InputDevice;
		}
		// else, they may just not have a oculus headset plugged in (which we have to account for - no need for a warning)
	}
	else
	{
		UE_LOG(LogOcInput, Warning, TEXT("OculusXRInput plugin enabled, but OculusXRHMD plugin is not available."));
	}
	return nullptr;
}

uint32 FOculusXRInputModule::GetNumberOfTouchControllers() const
{
	if (OculusXRInputDevice.IsValid())
	{
		return OculusXRInputDevice.Pin()->GetNumberOfTouchControllers();
	}
	return 0;
}

uint32 FOculusXRInputModule::GetNumberOfHandControllers() const
{
	if (OculusXRInputDevice.IsValid())
	{
		return OculusXRInputDevice.Pin()->GetNumberOfHandControllers();
	}
	return 0;
}

TSharedPtr<IInputDevice> FOculusXRInputModule::GetInputDevice() const
{
	if (OculusXRInputDevice.IsValid())
	{
		return OculusXRInputDevice.Pin();
	}
	return nullptr;
}

#endif // OCULUS_INPUT_SUPPORTED_PLATFORMS

IMPLEMENT_MODULE(FOculusXRInputModule, OculusXRInput)

#undef LOCTEXT_NAMESPACE