// AUTOGENERATED COPYRIGHT HEADER START
// Copyright (C) 2021-2023 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
// AUTOGENERATED COPYRIGHT HEADER END

#include "gfx-lut.hpp"
#include "obs/gs/gs-helper.hpp"
#include "plugin.hpp"
#include "util/util-logging.hpp"

#include "warning-disable.hpp"
#include <mutex>
#include "warning-enable.hpp"

#ifdef _DEBUG
#define ST_PREFIX "<%s> "
#define D_LOG_ERROR(x, ...) P_LOG_ERROR(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_WARNING(x, ...) P_LOG_WARN(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_INFO(x, ...) P_LOG_INFO(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_DEBUG(x, ...) P_LOG_DEBUG(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#else
#define ST_PREFIX "<transition::shader> "
#define D_LOG_ERROR(...) P_LOG_ERROR(ST_PREFIX __VA_ARGS__)
#define D_LOG_WARNING(...) P_LOG_WARN(ST_PREFIX __VA_ARGS__)
#define D_LOG_INFO(...) P_LOG_INFO(ST_PREFIX __VA_ARGS__)
#define D_LOG_DEBUG(...) P_LOG_DEBUG(ST_PREFIX __VA_ARGS__)
#endif

using namespace streamfx;

std::shared_ptr<streamfx::gfx::lut::data> streamfx::gfx::lut::data::instance()
{
	static std::weak_ptr<streamfx::gfx::lut::data> _instance;
	static std::mutex                              _mutex;

	std::lock_guard<std::mutex> lock(_mutex);

	auto reference = _instance.lock();
	if (!reference) {
		reference = std::shared_ptr<streamfx::gfx::lut::data>(new streamfx::gfx::lut::data());
		_instance = reference;
	}
	return reference;
}

streamfx::gfx::lut::data::data() : _producer_effect(), _consumer_effect()
{
	auto gctx = streamfx::obs::gs::context();

	std::filesystem::path lut_producer_path = streamfx::data_file_path("effects/lut-producer.effect");
	if (std::filesystem::exists(lut_producer_path)) {
		try {
			_producer_effect = std::make_shared<streamfx::obs::gs::effect>(lut_producer_path);
		} catch (std::exception const& ex) {
			D_LOG_ERROR("Loading LUT Producer effect failed: %s", ex.what());
		}
	}

	std::filesystem::path lut_consumer_path = streamfx::data_file_path("effects/lut-consumer.effect");
	if (std::filesystem::exists(lut_consumer_path)) {
		try {
			_consumer_effect = std::make_shared<streamfx::obs::gs::effect>(lut_consumer_path);
		} catch (std::exception const& ex) {
			D_LOG_ERROR("Loading LUT Consumer effect failed: %s", ex.what());
		}
	}
}

streamfx::gfx::lut::data::~data()
{
	auto gctx = streamfx::obs::gs::context();
	_producer_effect.reset();
	_consumer_effect.reset();
}