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/* See LICENSE file for copyright and license details. */
#include <stdio.h>
#include <stdlib.h>
#include <string2.h>
#include <time.h>
#include "log.h"
#define NNN_LVL -1 /* NONE LEVEL */
#define DBG_LVL 0
#define INF_LVL 1
#define WRN_LVL 2
#define ERR_LVL 3
#define BUFF_SIZE 256
char *
loglibver(void)
{
return LIBVER;
}
/* Checks if the terminal supports colors */
static int
check_term_colors()
{
FILE *fp;
char path[1024];
/* Open the command for reading. */
fp = popen("echo $COLORTERM", "r");
if (fp == NULL) {
printf("Failed to run command\n" );
exit(1);
}
/* Read the output a line at a time - output it. */
while (fgets(path, sizeof(path), fp) != NULL) {
/* printf("%s", path); */
if (strcmp(path, "truecolor\n") == 0) {
pclose(fp);
return 0;
}
}
/* close */
pclose(fp);
return -1;
}
/* Converts the property values */
static int
log_parse_level_property(char *str_level)
{
if (strcmp( str_level, "NONE" ) == 0) return NNN_LVL;
if (strcmp( str_level, "DEBUG" ) == 0) return DBG_LVL;
if (strcmp( str_level, "INFO" ) == 0) return INF_LVL;
if (strcmp( str_level, "WARNING" ) == 0) return WRN_LVL;
if (strcmp( str_level, "ERROR" ) == 0) return ERR_LVL;
return -1;
}
static int
stridxof(const char *str, char c)
{
int size_s = strlen(str);
int i;
for (i = 0; i < size_s; i++) {
if (str[i] == c) {
return i;
}
}
return size_s - 1;
}
static char *
remove_ext(const char *filename)
{
int i, size_s = stridxof(filename, '.') + 1;
char *name = (char *) malloc(sizeof(char) * size_s);
for (i = 0; i < size_s; i++) {
name[i] = filename[i];
}
name[size_s - 1] = '\0';
return name;
}
/* Parses the configuration line to get log level and the context */
static int
log_get_level(const char *filename, char *conf_key, char *conf_value)
{
int default_level = DBG_LVL;
const char *context;
if (strends(conf_key, "level") != 0)
return DBG_LVL;
context = remove_ext(filename);
printf("%s\n", conf_key);
if (strcmp(conf_key, "logging.level.default")) {
default_level = log_parse_level_property(conf_value);
} else if (strstarts(conf_key, "file.") == 0 && strends(conf_key, context) == 0) {
printf("Contesto: %s %s\n", context, conf_key);
}
return default_level;
}
/* Initialize the log structure */
static void
log_init(Log *log)
{
char conf_key[BUFF_SIZE], conf_value[BUFF_SIZE], buff[BUFF_SIZE];
FILE *file = fopen("log.config", "r");
/* Use the coded configuration */
if (file == NULL)
return;
while (fgets(buff, BUFF_SIZE, file) != NULL
&& buff[0] != '#') {
sscanf(buff, "%[^=]=%s", conf_key, conf_value);
if (strends(conf_key, "level") == 0) {
log->level = log_get_level(log->filename, conf_key, conf_value);
}
}
printf("----->>>> %d\n", strstarts("file.main.level", "file"));
fclose(file);
}
Log *
log_create(const char *filename) {
Log *log = (Log *) malloc(sizeof(Log));
log->filename = filename;
log->level = DBG_LVL;
log_init(log);
return log;
}
static void
print_log(Log *log, int level, char *msg)
{
time_t t;
struct tm *date;
const char *lvl;
/* NONE level. Disable log */
if (log->level == NNN_LVL) return;
/* Don't display log if the choosen level is major.
* For example: log->level is ERROR and level is INFO, only ERROR logs will be shown. */
if (log->level > level) return;
t = time(NULL);
date = localtime(&t);
switch (level) {
case DBG_LVL:
lvl = "[DEBUG]";
break;
case INF_LVL:
lvl = "[INFO]";
break;
case WRN_LVL:
lvl = "[WARNING]";
break;
case ERR_LVL:
lvl = "[ERROR]";
break;
default:
lvl = "[DEFAULT]";
break;
}
check_term_colors();
printf("%d-%02d-%02d %02d:%02d %10s: <%s> %s\n",
date->tm_year + 1900,
date->tm_mon,
date->tm_mday,
date->tm_hour,
date->tm_min,
lvl,
log->filename,
msg);
}
void
log_debug(Log *log, char *msg)
{
print_log(log, DBG_LVL, msg);
}
void
log_error(Log *log, char *msg)
{
print_log(log, ERR_LVL, msg);
}
void
log_info(Log *log, char *msg)
{
print_log(log, INF_LVL, msg);
}
void
log_warn(Log *log, char *msg)
{
print_log(log, WRN_LVL, msg);
}
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