/***********************************//**
 * @file log4vendor.h
 * @email guifaliao@gmail.com
 * @version 0.0.0.2
 * @date 2020-08-26
 * @copyright China Merchants Bank Co.,Ltd All rights reserved
 *
 * @brief Log class for VTM device vendor for developing device adapter
 * @details 
 *	2020-4-28: strip log component from SpAgent Project and adjust it.
 *  2020-11-11: add log_init_config_c structure and new init api: log4vendor::initp
 **************************************/

#ifndef _VTM_LOG4VENDOR_H_
#define _VTM_LOG4VENDOR_H_

#pragma once

#include <sstream>
#include <string>
#include <cstring>

#ifdef _WIN32
#ifdef LIBLOG4VENDOR_EXPORTS
#define LOG4VENDOR_API __declspec(dllexport)
#else
#define LOG4VENDOR_API __declspec(dllimport)
#endif
#else
#if ( defined(__GNUC__) &&  __GNUC__ >= 4 )
#define LOG4VENDOR_API __attribute__((visibility("default")))
#else
#define LOG4VENDOR_API
#endif
#endif

#ifdef UNICODE
#error This version is not support {UNICODE} char set!!
#define LOG4VTM_TEXT2(STRING) L##STRING
typedef std::wstring vtm_string;
typedef wchar_t vtm_char;
#else
#define LOG4VTM_TEXT2(STRING) STRING
typedef std::string vtm_string;
typedef char vtm_char;
#endif // UNICODE
#define LOG4VTM_TEXT(STRING) LOG4VTM_TEXT2(STRING)

#ifndef RVC_VENDOE_BUILDIN_TYPE
#if (defined(_WIN32) || defined(_WIN64))
typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef unsigned long DWORD;
typedef unsigned long* PDWORD;
#else
typedef uint8_t BYTE;
typedef uint8_t* LPBYTE;
typedef uint16_t WORD;
typedef uint32_t DWORD;
typedef uint32_t* PDWORD;
typedef char CHAR;
#endif
#define RVC_VENDOE_BUILDIN_TYPE
#endif // !RVC_VENDOE_BUILDIN_TYPE

#if defined(_MSC_VER)
#define LOG4VTM_START_DOWHILE_WARNING()  \
    __pragma (warning (push))                 \
    __pragma (warning (disable:4127))           

#define LOG4VTM_END_DOWHILE_WARNING()   \
    __pragma (warning (pop))

#else
#define LOG4VTM_START_DOWHILE_WARNING()
#define LOG4VTM_END_DOWHILE_WARNING()
#endif

#define CMB_LOG_TYPE_CONSOLE 1   /*控制台输出*/
#define CMB_LOG_TYPE_FILE    2   /*文件记录输出*/
#define CMB_LOG_TYPE_SOCKET  4   /*TCP传输输出，暂未实现*/

#define CMB_LOG_LEVEL_OFF     6  /*关闭任何日志输出*/
#define CMB_LOG_LEVEL_FATAL   5  /*非常严重类型的日志输出*/
#define CMB_LOG_LEVEL_ERROR   4  /*错误类型的日志输出*/
#define CMB_LOG_LEVEL_WARN    3  /*告警类型的日志输出*/
#define CMB_LOG_LEVEL_INFO    2  /*普通日志输出*/
#define CMB_LOG_LEVEL_DEBUG   1  /*调试日志输出*/
#define CMB_LOG_LEVEL_TRACE   0  /*跟踪函数进出等输出*/
#define CMB_LOG_LEVEL_ALL     CMB_LOG_LEVEL_TRACE

#define CMB_LOG_TRACE   1
#define CMB_LOG_DEBUG   2
#define CMB_LOG_INFO    3
#define CMB_LOG_WARN    4
#define CMB_LOG_ERROR   5
#define CMB_LOG_FATAL   6
//#define CMB_LOG_ASSERT  7

#define CMB_INSTANTIATE_OSTRINGSTREAM(var)                              \
	std::basic_ostringstream<char>& var                                                \
	= cmb::log4vendor::get_oss()

#define CMB_LOG_BODY(logLevel, logEvent)                                         \
	LOG4VTM_START_DOWHILE_WARNING()                                          \
    do {                                                                                                       \
        cmb::log4vendor* _l                                                                         \
            = cmb::log4vendor::instance();                                                    \
		CMB_INSTANTIATE_OSTRINGSTREAM (_log4cplus_buf);               \
		_log4cplus_buf << logEvent;                                                          \
        _l->log(logLevel, _log4cplus_buf.str());                                           \
    } while (0)                                                                                            \
    LOG4VTM_END_DOWHILE_WARNING()


 /*!
 * @brief 打印日志的函数，所有等级的日志打印均通过该宏调用实现
 * @param[in]  
 *		severity: 日志等级 TRACE, INFO, WARN, ERROR, FATAL, ASSERT
 *		ostr:     要打印的内容，支持 << 连续输出
 */
#define LOG4VTM(severity, ostr)                                        \
    CMB_LOG_BODY(CMB_LOG_ ## severity, ostr)

 /*!
 * @brief: 用于记录函数进出的宏定义，在进入目的函数时立即调用，在该函数退出时会打印日志
*/
#define LOG4VTM_FUNCTION() cmb::log4vendor_tracer _FunctionTraceLogger(\
	__FUNCTION__, cmb::log4vendor_tracer::_get_file_name(__FILE__), __LINE__)

 /*!
 * @brief 类似于 LOG4VTM_FUNCTION()，除外还添加一个入参用于打印返回值，注意该入参的生命周期为整个函数内！！
 * @param[in]: pValue - 仅支持传入 int* 或 DWORD* 类型，在日志中会打印指针所存储的值
 */
#define TRACE4VTM_FUNCTION(pValue) cmb::log4vendor_tracer _FunctionTraceLogger(\
	__FUNCTION__, cmb::log4vendor_tracer::_get_file_name(__FILE__), __LINE__, (pValue))

#define VENDOR_BUFF_SIZE 256

namespace cmb {

	struct log_init_config_c
	{
        short log_type;       /*见上面 CMB_LOG_TYPE_FILE 等定义*/
        short log_level;      /*见上面 CMB_LOG_TRACE 等定义*/
        char dev_name[VENDOR_BUFF_SIZE];  /*硬件名称，用于作为子目录的区分*/
		char log_dir[VENDOR_BUFF_SIZE];  /*在 log_type 包含 CMB_LOG_TYPE_FILE 时，该参数才有效，用于记录日志的目录*/
	};

	struct LOG4VENDOR_API log_init_config
	{
		short log_type;       /*见上面 CMB_LOG_TYPE_FILE 等定义*/
		short log_level;      /*见上面 CMB_LOG_TRACE 等定义*/
		std::string dev_name;  /*硬件名称，用于作为子目录的区分*/
		std::string log_dir;  /*在 log_type 包含 CMB_LOG_TYPE_FILE 时，该参数才有效，用于记录日志的目录*/

		log_init_config()
			:log_type(CMB_LOG_TYPE_FILE)
			,log_level(CMB_LOG_TRACE)
			,dev_name(LOG4VTM_TEXT("VTM")),log_dir(LOG4VTM_TEXT("")){}

		log_init_config(const log_init_config& rhs)
			:log_type(rhs.log_type)
            , log_level(rhs.log_level)
            , dev_name(rhs.dev_name), log_dir(rhs.log_dir)
        {
        }
	};



	class LOG4VENDOR_API log4vendor
	{
	public:

		static log4vendor* instance();

		 /*!
		 * @brief 在调用打印日志的相关宏时，请先调用此函数进行初始化，否则将不会打印任何形式的日志内容
		 *
		 * @param[in]  
		 *		config: 日志初始化的配置参数
		 *		ret_msg: 防止传入的参数有误，在必要的时候记录错误信息，供上层打印排查
		 *		
		 *	如传入的参数依次为："PinPad", CMB_LOG_TYPE_FILE|CMB_LOG_TYPE_CONSOLE, "C:\\rvc\\dbg"
		 *  那么将会日志记在 "C:\\rvc\\dbg\\PinPad\\{YYYYMMDD}.log" 内，并将支持控制台输出
		 *		
		 */
		static void init(const log_init_config& config, vtm_string& ret_msg);

		static void initp(const log_init_config_c* pconfig, char pret_msg[VENDOR_BUFF_SIZE]);

		virtual void log(int log_level, const vtm_string& text) = 0;

		static std::basic_ostringstream<char>& get_oss();
		
		//static std::basic_ostringstream<wchar_t>& get_woss();

#ifdef LIBLOG4VENDOR_EXPORTS
	public:
#else
	private:
#endif
		log4vendor() {}
		virtual ~log4vendor(){}
	private:
		log4vendor(const log4vendor& rhs);
	};

	
	//////////////////////////////////////////////////////////////////////////



	class LOG4VENDOR_API log4vendor_tracer
	{
	public:

		log4vendor_tracer(const char* message, const char* fileName, int nLine);
		
		log4vendor_tracer(const char* message, const char* fileName, int nLine, int* pRet);
		
		log4vendor_tracer(const char* message, const char* fileName, int nLine, PDWORD pRet);
		
		~log4vendor_tracer();


		static const char* _get_file_name(const char* file_path);

	private:
		
		log4vendor_tracer (log4vendor_tracer const &);
		log4vendor_tracer & operator = (log4vendor_tracer const &);

		const char* m_pszMes;
		const char* m_pszFileN;
		int m_nLine;

		int* m_pnRet;
		PDWORD m_pDwRet;
		int* m_pfRet;
		int m_retType;
	};
}

#endif //_VTM_LOG4VENDOR_H_