#pragma once
#ifdef WINDOWS_BUILD
#ifdef MESSAGE_BUS_EXPORTS
#define MESSAGE_BUS_IMPL _declspec(dllexport)
#else
#define MESSAGE_BUS_IMPL _declspec(dllimport)
#endif
#endif
//stl
#include <map>
#include <any>
#include <string>
#include <functional>

namespace robotics::v3 {
#ifdef WINDOWS_BUILD
	class MESSAGE_BUS_IMPL message_bus_impl {
#elif LINUX_BUILD
	class message_bus_impl {
#endif
	public:
		/**
		 * @brief 单例
		 * @return
		 */
		static message_bus_impl* instance();
		~message_bus_impl();
		/**
		 * @brief 绑定单个函数
		 * @param str_topic
		 * @param fn
		 * @return
		 */
		bool bind(std::string const& str_topic, std::any const& fn);
		/**
		 * @brief 绑定多个函数
		 * @param str_topic
		 * @param fn
		 */
		void bind_multiple(std::string const& str_topic, std::any const& fn);
		/**
		 * @brief 查找
		 * @param str_topic 
		 * @return 
		 */
		std::vector<std::any> find(const std::string& str_topic);
		/**
		 * @brief 删除
		 * @param str_topic 
		 */
		void remove(const std::string& str_topic);
	private:
		message_bus_impl();
	private:
		std::multimap<std::string, std::pair<bool, std::any>> map_;
		typedef std::multimap<std::string, std::pair<bool, std::any>>::iterator Iterater;
	};
}