/**
 * Copyright (c) 2020 rxi
 *
 * Original library is free software; you can redistribute it and/or modify it
 * under the terms of the MIT license. See `log.c` for details.
 *
 * Modified work Copyright (c) 2026 Emilia Marigold.
 * New changes licensed under the AGPLv3 license.
 */

#ifndef LOG_H
#define LOG_H

#include <stdio.h>
#include <stdarg.h>
#include <stdbool.h>
#include <time.h>

#define LOG_VERSION "r:180.26.1"

typedef
struct log_event_struct
{
        va_list argument_pointer;
        const char *format;
        const char *file;
        struct tm *local_time;
        void *user_data;
        int line;
        int severity_level;
}
log_event_type;

typedef
void
(*log_function)(log_event_type *event);

typedef
void
(*lock_function)(bool lock,
                 void *user_data);

enum
{
        LOG_TRACE_ENUM = 0,
        LOG_DEBUG_ENUM,
        LOG_INFO_ENUM,
        LOG_WARNING_ENUM,
        LOG_ERROR_ENUM,
        LOG_FATAL_ENUM
};

#define log_trace(...) log_log(LOG_TRACE_ENUM, __FILE__, __LINE__, __VA_ARGS__)
#define log_debug(...) log_log(LOG_DEBUG_ENUM, __FILE__, __LINE__, __VA_ARGS__)
#define log_info(...)  log_log(LOG_INFO_ENUM,  __FILE__, __LINE__, __VA_ARGS__)
#define log_warning(...)  log_log(LOG_WARNING_ENUM,  __FILE__, __LINE__, __VA_ARGS__)
#define log_error(...) log_log(LOG_ERROR_ENUM, __FILE__, __LINE__, __VA_ARGS__)
#define log_fatal(...) log_log(LOG_FATAL_ENUM, __FILE__, __LINE__, __VA_ARGS__)

const char*
log_level_string(int severity_level);

void
log_set_lock(lock_function function,
             void *user_data);

void
log_set_level(int severity_level);

void
log_set_quiet(bool should_be_quiet);

int
log_add_callback(log_function function,
                 void *user_data,
                 int severity_level);

int
log_add_file_pointer(FILE *file_pointer,
                     int severity_level);

void
log_log(int severity_level,
        const char *file,
        int line,
        const char *format,
        ...);

#endif