Add log.c and log.h

2 files changed, 158 insertions, 0 deletions

diff --git a/log.c b/log.c
new file mode 100644
index 0000000..68dfeb7
--- /dev/null
+++ b/log.c
@@ -0,0 +1,134 @@
+/* See LICENSE file for copyright and license details. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "log.h"
+
+#define DBG_LVL 0
+#define INF_LVL 1
+#define WRN_LVL 2
+#define ERR_LVL 3
+
+#define BUFF_SIZE 256
+
+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;
+}
+
+static void
+log_init(Log *log)
+{
+	char buff[BUFF_SIZE];
+	FILE *file = fopen("log.config", "r");
+
+	/* Use the coded configuration */
+	if (file == NULL)
+		return;
+
+	while (fgets(buff, BUFF_SIZE, file) != NULL) {
+		/*printf("%s", strtok(buff, "="));*/
+	}
+
+	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;
+	t = time(NULL);
+	struct tm tm = *localtime(&t);
+	const char *lvl;
+
+	/* 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;
+
+	switch (level) {
+		case DBG_LVL:
+			lvl = "[DEBUG]";
+			break;
+		case INF_LVL:
+			lvl = "[INFO]";
+			break;
+		case ERR_LVL:
+			lvl = "[ERROR]";
+			break;
+		default:
+			lvl = "[DEFAULT]";
+			break;
+	}
+
+	check_term_colors();
+	printf("%d-%02d-%02d %02d:%02d %10s: <%s> %s\n",
+	       tm.tm_year + 1900,
+	       tm.tm_mon,
+	       tm.tm_mday,
+	       tm.tm_hour,
+	       tm.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_warning(Log *log, char *msg)
+{
+	print_log(log, WRN_LVL, msg);
+}
diff --git a/log.h b/log.h
new file mode 100644
index 0000000..7fdfa92
--- /dev/null
+++ b/log.h
@@ -0,0 +1,24 @@
+/* See LICENSE file for copyright and license details. */
+
+#ifndef __LOG_H__
+#define __LOG_H__
+
+typedef struct Log {
+	const char *filename;
+	int level;
+} Log;
+
+Log		*log_create(const char *);
+
+void	 log_debug(Log *, char *);
+void	 log_error(Log *, char *);
+void	 log_info(Log *, char *);
+void	 log_warn(Log *, char *);
+
+int		 log_is_debug(Log *);
+int		 log_is_error(Log *);
+int		 log_is_info(Log *);
+int		 log_is_warn(Log *);
+
+
+#endif /* __LOG_H__ */