#include <unordered_map>
#include <string>

#include <init.hpp>

using ctor_map = std::unordered_map<std::string_view, std::function<Random* (const void*)>>;

static ctor_map* INIT_MAP=nullptr;

namespace rng::init
{
	const std::function<Random* (const void*)>& apply_raw(std::string_view name, std::function<Random* (const void*)> fn) noexcept
	{
		if(!INIT_MAP) INIT_MAP = new ctor_map();

		auto& map = *INIT_MAP;
		map[name] = std::move(fn);
		return map[name];
	}
	
	std::function<Random* (const void*)>& get(std::string_view name)
	{
		if(UNLIKELY(!INIT_MAP)) throw DCLookupFailed ( name ); 
		auto& map = *INIT_MAP;
		if(map.contains(name)) return map[name];
		else throw DCLookupFailed ( name );
	}


	namespace {
		__attribute__((destructor))
		static void _rng_ctor__fini() noexcept{ 
			if(LIKELY(INIT_MAP)) {
				delete INIT_MAP;
				INIT_MAP = nullptr;
			}
		}
	}
}