Implement logger functionality and signal handling: add Logger structure with mutex, logging functions, and handle SIGINT in utils.

include/file_handler.h

@@ -8,8 +8,8 @@
 
 #include "main.h"
 #include "users.h"
+#include "utils.h"
 #include <string.h>
-#include <libpq-fe.h>
 
 int loadListFromCSV(char* _filename, list_t * _list);
 

include/logger.h

@@ -0,0 +1,21 @@
+#ifndef __LOGGER_H__
+#define __LOGGER_H__
+
+#include "main.h"
+#include "rfid_handler.h"
+#include "utils.h"
+
+typedef struct
+{
+    pthread_mutex_t lock;
+    FILE *f_log;
+} Logger;
+
+Logger *initLogger(const char *_filename);
+int logErrorEvent(Logger *_logger, const char *_message);
+int logWarningEvent(Logger *_logger, const char *_message);
+int logHardwareEvent(Logger *_logger, const char *_event_origin, const char *_message);
+int logInfoEvent(Logger *_logger, const char *_message);
+int endLogger(Logger *_logger);
+
+#endif

include/main.h

@@ -1,3 +1,23 @@
+/**
+ * @file main.h
+ * @brief Main header file for the application.
+ *
+ * This header includes all necessary standard and project-specific headers,
+ * defines basic macros and types, and declares the main entry point of the program.
+ *
+ * Included headers:
+ *  - Standard C libraries (stdio, stdlib, stdint, time, unistd, pthread, ncurses, fcntl, errno, termios, string, signal)
+ *  - Project-specific modules (utils, logger, users, tui, rfid_handler, file_handler)
+ *
+ * Macros:
+ *  - TRUE, FALSE: Boolean values for logic operations.
+ *  - BYTE: Unsigned 8-bit integer type alias.
+ *  - MIN_X_TERMINAL_SIZE, MIN_Y_TERMINAL_SIZE: Minimum terminal dimensions for UI.
+ *
+ * Function Declarations:
+ *  - int main(int argc, char const **argv): Program entry point.
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -14,7 +34,6 @@
 #include <string.h>
 #include <signal.h>
 
-#include "utils.h"
 
 #ifndef __MAIN_H__
 #define __MAIN_H__
@@ -34,9 +53,8 @@
 #define MIN_X_TERMINAL_SIZE 50
 #define MIN_Y_TERMINAL_SIZE 20
 
-void handle_sigint(int sig);
+#define JOURNAL_FILENAME "lighttam_journal"
 
 int main(int argc, char const **argv);
 
-
 #endif

include/utils.h

@@ -7,4 +7,5 @@ void printTimeInString(time_t _input, char * _output);
 
 void printDateAndTimeInString(time_t _input, char * _output);
 
+void handle_sigint(int sig);
 #endif

src/logger.c

@@ -0,0 +1,80 @@
+#include "logger.h"
+
+Logger *initLogger(const char *_filename)
+{
+    Logger *logger_struct = malloc(sizeof(Logger));
+    if (logger_struct == NULL)
+    {
+        return NULL;
+    }
+
+    logger_struct->f_log = fopen(_filename, "w");
+    if (logger_struct->f_log == NULL)
+    {
+        free(logger_struct);
+        return NULL;
+    }
+    pthread_mutex_init(&logger_struct->lock, NULL);
+}
+
+int logErrorEvent(Logger *_logger, const char *_message)
+{
+    if (_logger == NULL)
+    {
+        return 0;
+    }
+
+    char current_time_str[32];
+    printDateAndTimeInString(time(NULL), current_time_str);
+
+    fprintf(_logger->f_log, "%s [ERROR] %s", current_time_str, _message);
+    return 1;
+}
+
+int logWarningEvent(Logger *_logger, const char *_message)
+{
+    if (_logger == NULL)
+    {
+        return 0;
+    }
+
+    char current_time_str[32];
+    printDateAndTimeInString(time(NULL), current_time_str);
+
+    fprintf(_logger->f_log, "%s [WARNING] %s", current_time_str, _message);
+    return 1;
+}
+
+int logHardwareEvent(Logger *_logger, const char *_event_origin, const char *_message)
+{
+    if (_logger == NULL)
+    {
+        return 0;
+    }
+
+    char current_time_str[32];
+    printDateAndTimeInString(time(NULL), current_time_str);
+
+    fprintf(_logger->f_log, "%s [%s] %s", current_time_str, _event_origin, _message);
+    return 1;
+}
+int logInfoEvent(Logger *_logger, const char *_message)
+{
+    if (_logger == NULL)
+    {
+        return 0;
+    }
+
+    char current_time_str[32];
+    printDateAndTimeInString(time(NULL), current_time_str);
+
+    fprintf(_logger->f_log, "%s [INFO] %s", current_time_str, _message);
+    return 1;
+}
+int endLogger(Logger *_logger)
+{
+    fclose(_logger->f_log);
+    free(_logger);
+    _logger = NULL;
+    return 0;
+}

src/main.c

@@ -1,16 +1,12 @@
 #include "main.h"
+
+#include "utils.h"
+#include "logger.h"
 #include "users.h"
 #include "tui.h"
 #include "rfid_handler.h"
 #include "file_handler.h"
 
-void handle_sigint(int sig)
-{
-    endwin();
-    clear();
-    exit(0);
-}
-
 int main(int argc, char const **argv)
 {
     signal(SIGINT, handle_sigint);

src/utils.c

@@ -26,3 +26,10 @@ void printDateAndTimeInString(time_t _input, char *_output)
 
     return;
 }
+
+void handle_sigint(int sig)
+{
+    endwin();
+    clear();
+    exit(0);
+}