// this file is include huagao logging tools
//
// created:	2022-02-09
//

#pragma once

#include <string>

#ifdef WIN32
#define bzero(a, l)                 memset(a, 0, l)                       
#endif

enum hg_log_type
{
	HG_LOG_TYPE_NONE = 0,	// no logging
	HG_LOG_TYPE_CONSOLE,	// print to console
	HG_LOG_TYPE_FILE,		// write log into file
    HG_LOG_TYPE_CALLBACK,   // invoke callback  log_callback
};
enum hg_log_level
{
	HG_LOG_LEVEL_ALL = 0,
	HG_LOG_LEVEL_DEBUG_INFO,
	HG_LOG_LEVEL_WARNING,
	HG_LOG_LEVEL_FATAL,
};

typedef void (*log_callback)(hg_log_level, const char* info);

#ifdef EXPORT_AS_C
extern "C"
{
#endif
    namespace hg_log
    {
        std::string format_ptr(void* ptr);
        std::string format_current_thread_id(void);
        std::string current_time(void);
        std::string format_size(unsigned long size);
        std::string u2utf8(const wchar_t* u);
        std::string pe_path(std::string* name = nullptr);
        unsigned long long available_memory(void);

        // Function:	initialize the logging type and level
        //
        // Parameters:	type - log type
        //
        //				level - log level. only the information can be logged if it's level was not less than this level
        //
        //				log_file - when type was 'HG_LOG_TYPE_FILE', specify the logging file path. default is "/tmp/hgscanner.log"
        //
        // Return:		0 - success, or -1 in HG_LOG_TYPE_FILE and log_file cannot be created
        int init(hg_log_type type = HG_LOG_TYPE_NONE, hg_log_level level = HG_LOG_LEVEL_DEBUG_INFO, char* log_file = 0);

        void log(hg_log_level level, const char* info);

        // 由于64-bits下，变参解析会出现错位现象，目前不建议使用该接口 ！！！
        void vlog(hg_log_level level, const char* fmt, ...);
    }
#ifdef EXPORT_AS_C
}
#endif

// 为方便变参调试信息输出，定义几个参数的宏。宏中“bytes”参数意义为该条日志信息所需要的最小空间（字节）
#if defined(WIN32) && !defined(EXPORT_SANE_API)
#define HG_LOG(level, info)    \
        {                           \
            unsigned int l = level; \
            hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, (void*)info, &l, NULL);   \
        }

#define HG_VLOG_1(level, bytes, fmt, arg1)			\
    {											    \
        char* msgbuf = (char*)malloc(bytes);        \
        sprintf(msgbuf, fmt, arg1);                 \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                               \
    }
#define HG_VLOG_MINI_1(level, fmt, arg1)   HG_VLOG_1(level, 256, fmt, arg1)

#define HG_VLOG_2(level, bytes, fmt, arg1, arg2)	\
    {											    \
        char* msgbuf = (char*)malloc(bytes);        \
        sprintf(msgbuf, fmt, arg1, arg2);           \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                               \
    }
#define HG_VLOG_MINI_2(level, fmt, arg1, arg2)   HG_VLOG_2(level, 256, fmt, arg1, arg2)

#define HG_VLOG_3(level, bytes, fmt, arg1, arg2, arg3)			        \
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3);                         \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_3(level, fmt, arg1, arg2, arg3)                   \
        HG_VLOG_3(level, 256, fmt, arg1, arg2, arg3)

#define HG_VLOG_4(level, bytes, fmt, arg1, arg2, arg3, arg4)			\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4);                   \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_4(level, fmt, arg1, arg2, arg3, arg4)              \
        HG_VLOG_4(level, 256, fmt, arg1, arg2, arg3, arg4)

#define HG_VLOG_5(level, bytes, fmt, arg1, arg2, arg3, arg4, arg5)		\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4, arg5);             \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_5(level, fmt, arg1, arg2, arg3, arg4, arg5)        \
        HG_VLOG_5(level, 256, fmt, arg1, arg2, arg3, arg4, arg5)

#define HG_VLOG_6(level, bytes, fmt, arg1, arg2, arg3, arg4, arg5, arg6)\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4, arg5, arg6);       \
        unsigned int l = level;                     \
        hg_scanner_mgr::ui_default_callback(NULL, SANE_EVENT_WIN_DEBUG_INFO, msgbuf, &l, NULL);                 \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_6(level, fmt, arg1, arg2, arg3, arg4, arg5, arg6)  \
        HG_VLOG_6(level, 256, fmt, arg1, arg2, arg3, arg4, arg5, arg6)
#else
#define HG_LOG      hg_log::log

#define HG_VLOG_1(level, bytes, fmt, arg1)			\
    {											    \
        char* msgbuf = (char*)malloc(bytes);        \
        sprintf(msgbuf, fmt, arg1);                 \
        HG_LOG(level, msgbuf);                 \
        free(msgbuf);                               \
    }
#define HG_VLOG_MINI_1(level, fmt, arg1)   HG_VLOG_1(level, 256, fmt, arg1)

#define HG_VLOG_2(level, bytes, fmt, arg1, arg2)	\
    {											    \
        char* msgbuf = (char*)malloc(bytes);        \
        sprintf(msgbuf, fmt, arg1, arg2);           \
        HG_LOG(level, msgbuf);                 \
        free(msgbuf);                               \
    }
#define HG_VLOG_MINI_2(level, fmt, arg1, arg2)   HG_VLOG_2(level, 256, fmt, arg1, arg2)

#define HG_VLOG_3(level, bytes, fmt, arg1, arg2, arg3)			        \
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3);                         \
        HG_LOG(level, msgbuf);                                     \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_3(level, fmt, arg1, arg2, arg3)                   \
        HG_VLOG_3(level, 256, fmt, arg1, arg2, arg3)

#define HG_VLOG_4(level, bytes, fmt, arg1, arg2, arg3, arg4)			\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4);                   \
        HG_LOG(level, msgbuf);                                     \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_4(level, fmt, arg1, arg2, arg3, arg4)              \
        HG_VLOG_4(level, 256, fmt, arg1, arg2, arg3, arg4)

#define HG_VLOG_5(level, bytes, fmt, arg1, arg2, arg3, arg4, arg5)		\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4, arg5);             \
        HG_LOG(level, msgbuf);                                     \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_5(level, fmt, arg1, arg2, arg3, arg4, arg5)        \
        HG_VLOG_5(level, 256, fmt, arg1, arg2, arg3, arg4, arg5)

#define HG_VLOG_6(level, bytes, fmt, arg1, arg2, arg3, arg4, arg5, arg6)\
    {											                        \
        char* msgbuf = (char*)malloc(bytes);                            \
        sprintf(msgbuf, fmt, arg1, arg2, arg3, arg4, arg5, arg6);       \
        HG_LOG(level, msgbuf);                                     \
        free(msgbuf);                                                   \
    }
#define HG_VLOG_MINI_6(level, fmt, arg1, arg2, arg3, arg4, arg5, arg6)  \
        HG_VLOG_6(level, 256, fmt, arg1, arg2, arg3, arg4, arg5, arg6)

#endif