#include "log.h"

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

#include "util.h"

static int g_level = LOG_INFO;

void log_set_level(int level)
{
    g_level = level;
}

int log_level_from_name(const char *name)
{
    if (!name)
        return LOG_INFO;
    if (strcmp(name, "error") == 0)
        return LOG_ERROR;
    if (strcmp(name, "warn") == 0)
        return LOG_WARN;
    if (strcmp(name, "info") == 0)
        return LOG_INFO;
    if (strcmp(name, "debug") == 0)
        return LOG_DEBUG;
    return LOG_INFO;
}

void log_msg(int level, const char *fmt, ...)
{
    if (level > g_level)
        return;
    static const char *names[] = { "error", "warn", "info", "debug" };
    char ts[32];
    util_iso8601(util_now(), ts, sizeof ts);
    fprintf(stderr, "%s [%s] ", ts, names[level]);
    va_list ap;
    va_start(ap, fmt);
    vfprintf(stderr, fmt, ap);
    va_end(ap);
    fputc('\n', stderr);
}