#pragma once

#include <unordered_map>
#include "assets/dynamic_data_stores/dynamic_shader_source_store.hpp"
#include "opengl/shader_program_lookup.hpp"
#include "opengl/handles/shader_handle.hpp"
#include "opengl/handles/shader_program_handle.hpp"
#include "../metadata/shader_source_metadata.hpp"
#include "shading/shader_program_requirements.hpp"

namespace zgl
{

class shader_program_compiler
{

public:


	// compile shader programs for given requirements
	// cache shader programs with their capabilities
	// store sstream for creating defines

	// register shader source code
	// store define types for these shaders as bitmap
	void register_shader_sources(
		const dynamic_shader_source_store& shader_sources
	);

	void compile_shader_programs(
		const dynamic_shader_source_store& shader_sources,
		std::span<const shading::shader_program_metadata> requirements,
		std::vector<shader_program_handle>& shader_handles
	);

	// create metadata for all sources

	// get
ś
protected:



private:
	std::vector<shading::compiled_shader_metadata_type, shader_handle> shader_lookup;
	std::vector<shading::shader_program_metadata, shader_program_handle> shader_program_lookup;

};

}