#ifndef __SMCC_LOG_H__
#define __SMCC_LOG_H__

#include "../std/rt_api_def.h"
#include "color.h"

typedef enum log_level {
    LOG_LEVEL_NOTSET  = 0,
    LOG_LEVEL_DEBUG   = 1 << 0,
    LOG_LEVEL_INFO    = 1 << 1,
    LOG_LEVEL_WARN    = 1 << 2,
    LOG_LEVEL_ERROR   = 1 << 3,
    LOG_LEVEL_FATAL   = 1 << 4,

    LOG_LEVEL_TRACE   = 1 << 5,
    LOG_LEVEL_ALL     = 0xFF,
} log_level_t;

typedef void (*log_handler)(
    log_level_t level,
    const char* module,
    const char* file,
    int line,
    const char* message
);

#ifndef LOGGER_MAX_BUF_SIZE
#define LOGGER_MAX_BUF_SIZE 256
#endif

typedef struct logger {
    const char* name;
    log_level_t level;
    log_handler handler;
    char buf[LOGGER_MAX_BUF_SIZE];
} logger_t;

logger_t* log_get(const char* name);
void log_set_level(logger_t* logger, log_level_t level);
void log_set_handler(logger_t* logger, log_handler handler);

#ifndef LOG_MAX_MAROC_BUF_SIZE
#define LOG_MAX_MAROC_BUF_SIZE LOGGER_MAX_BUF_SIZE
#endif
#define _LOG(_level_, _msg_, ...) \
    do { \
        logger_t* _logger = log_get(NULL); \
        if (_logger && _logger->handler && (_logger->level & (_level_))) { \
            rt.snprintf(_logger->buf, sizeof(_logger->buf), (_msg_), ##__VA_ARGS__); \
            _logger->handler((_level_), _logger->name, __FILE__, __LINE__, _logger->buf); \
        } \
    } while(0)

#define LOG_NOTSET(...) _LOG(LOG_LEVEL_NOTSET, __VA_ARGS__)
#define LOG_DEBUG(...)  _LOG(LOG_LEVEL_DEBUG,  __VA_ARGS__)
#define LOG_INFO(...)   _LOG(LOG_LEVEL_INFO,   __VA_ARGS__)
#define LOG_WARN(...)   _LOG(LOG_LEVEL_WARN,   __VA_ARGS__)
#define LOG_ERROR(...)  _LOG(LOG_LEVEL_ERROR,  __VA_ARGS__)
#define LOG_FATAL(...)  _LOG(LOG_LEVEL_FATAL,  __VA_ARGS__)
#define LOG_TRACE(...)  _LOG(LOG_LEVEL_TRACE,  __VA_ARGS__)


#define _Assert(cond, ...) \
    do { \
        if (!(cond)) { \
            LOG_FATAL(__VA_ARGS__); \
        } \
    } while (0)
#define AssertFmt(cond, format, ...) _Assert(cond, "Assertion Failure: " format, ## __VA_ARGS__)
#define PanicFmt(format, ...) _Assert(0, "Panic: " format, ## __VA_ARGS__)
#define Assert(cond) AssertFmt(cond, "cond is `" SMCC_STR(cond) "`")
#define Panic(...) PanicFmt(__VA_ARGS__)
#define TODO() PanicFmt("TODO please implement me")

#endif