#pragma once

#include "GlobalParamsBuffer.h"
#include "OpenGLRenderer.h"
#include "RuntimeHost.h"
#include "ShaderTypes.h"
#include "ShaderProgramCompiler.h"
#include "ShaderTextureBindings.h"

#include <string>

class OpenGLShaderPrograms
{
public:
	using LayerProgram = OpenGLRenderer::LayerProgram;

	OpenGLShaderPrograms(OpenGLRenderer& renderer, RuntimeHost& runtimeHost);

	bool CompileLayerPrograms(unsigned inputFrameWidth, unsigned inputFrameHeight, int errorMessageSize, char* errorMessage);
	bool CompileDecodeShader(int errorMessageSize, char* errorMessage);
	void DestroyLayerPrograms();
	void DestroySingleLayerProgram(LayerProgram& layerProgram);
	void DestroyDecodeShaderProgram();
	void ResetTemporalHistoryState();
	bool UpdateTextBindingTexture(const RuntimeRenderState& state, LayerProgram::TextBinding& textBinding, std::string& error);
	bool UpdateGlobalParamsBuffer(const RuntimeRenderState& state, unsigned availableSourceHistoryLength, unsigned availableTemporalHistoryLength);

private:
	OpenGLRenderer& mRenderer;
	RuntimeHost& mRuntimeHost;
	ShaderTextureBindings mTextureBindings;
	GlobalParamsBuffer mGlobalParamsBuffer;
	ShaderProgramCompiler mCompiler;
};