#pragma once
#pragma pack(1)

#include "kdefine.h"

__NAMESPACE_BEGIN__(HJ)

#define FRAME_HEADER_LENGTH (5)
#define FRAME_TAILE_LENGTH (4)

typedef enum tagErrorCode : unsigned char
{
	ERR_OK = 0X00,
	ERR_INVALID_LEN = 0X01,
	ERR_INVALID_UTF8 = 0X02,
	ERR_INVALID_BUF_LEN = 0X03,
	ERR_INVALID_JSON_FMT = 0X04,
	ERR_INVALID_FSUCODE = 0X05,
	ERR_UNKOWN = 0XFF
}ErrorCode;

typedef enum tagFrameType : unsigned char
{
	Frame_Response = 0x00, //返回帧
	Frame_Request = 0x01,  //请求帧
	Frame_Echo_Request = 0x02, //测试请求帧
	Frame_DeviceData_Request = 0x03, //来自采集程序的数据请求包，将数据保存到数据库中
}FrameType;

typedef struct tagFrameTail
{
	unsigned char frame_delimiter[4] = { 0xEE,0xFF,0xEE,0xFF };
}FrameTail;

typedef struct tagFrame
{
	FrameType frame_type;					//帧类型
	unsigned int frame_len;					//帧数据长度
	unsigned char frame_content[1];					//帧的内容，实际应为json字符串，由json内容自解释
	tagFrame()
	{
		frame_type = Frame_Response;
		frame_len = 1;
		frame_content[0] = ERR_OK;
	}
	void setErrorFrame(ErrorCode err = ERR_OK)
	{
		frame_len = 1;
		frame_content[0] = err;
	}
}MessageFrame;

__NAMESPACE_END__(HJ)

#pragma pack()