/**
 * @file include/server/MpackJson.h
 * @brief MPack<>JSON converter
 * @copyright 2015 Dual Inventive Technology Centre B.V.
 *
 * it converts JSON to MPack and MPack to JSON.
 */
#ifndef INCLUDE_SERVER_MPACKJSON_H_
#define INCLUDE_SERVER_MPACKJSON_H_

#include <mpack/mpack.h>
#include <memory>
#include <di/Buffer.h>
#include <di/Json.h>

/**
 * @class MpackJson
 * it converts JSON to MPack and MPack to JSON
 */
class MpackJson {
 private:
	/**
	 * Converts an MPack node API object to a Json object
	 * @param mp MPack node type object
	 * @return Json object
	 */
	static std::shared_ptr<Di::Json> toJsonObject(const mpack_node_t &mp);
	/**
	 * Converts an MPack node API array to a Json array
	 * @param mp MPack node type array
	 * @return Json object
	 */
	static std::shared_ptr<Di::Json> toJsonArray(const mpack_node_t &mp);
	/**
	 * Converts a JSON object into an MPack object with the MPack writer API
	 * @param writer MPack writer
	 * @param mp Incoming Json object
	 */
	static void toMpackObject(mpack_writer_t *writer, std::shared_ptr<Di::Json> mp);
	/**
	 * Converts a JSON array into an MPack array with the MPack writer API
	 * @param writer MPack writer
	 * @param mp Incoming Json array
	 */
	static void toMpackArray(mpack_writer_t *writer, std::shared_ptr<Di::Json> mp);

 public:
	/**
	 * Converts MPack to JSON
	 * @param mpack Incoming MPack string
	 * @param json Outcoming JSON string
	 * @return 0 on success or error code
	 */
	static int mpackToJson(const Di::Buffer &mpack, std::shared_ptr<std::string> *json);
	/**
	 * Converts JSON to MPack
	 * @param json Incoming JSON string
	 * @param mpack Outcoming MPack string
	 * @return 0 on success or error code
	 */
	static int jsonToMpack(const std::shared_ptr<std::string> &json, std::shared_ptr<Di::Buffer> mpack);
};

#endif  // INCLUDE_SERVER_MPACKJSON_H_