feat: add logger with write to file

ServerLMS/Systems/logger.cpp

@@ -2,10 +2,16 @@
 
 #include <QThread>
 
-
 Logger::Logger()
 {
-    //this->listWidget = widget;
+    connect(this,&Logger::sigAddToLogger, this, &Logger::handleLog,Qt::QueuedConnection);
+    createDirectory();
+}
+
+Logger &Logger::instance()
+{
+    static Logger logger;
+    return logger;
 }
 
 Logger::~Logger()
@@ -13,22 +19,79 @@ Logger::~Logger()
 
 }
 
-void Logger::setTypeLog(QString type)
+void Logger::setLoggingType(LoggingType type)
 {
-    typeLogger = type;
+    this->loggingType = type;
 }
 
-void Logger::addTextToLogger(QString msg)
+void Logger::log(QString message, LogLevel level)
 {
-    if(typeLogger == "widget")
+    emit sigAddToLogger(message,level);
+}
+
+void Logger::setLogFile(QString filePath)
+{
+    QMutexLocker locker(&mutex);
+    if (logFile.isOpen())
     {
-        emit sigSendTextToLogger(msg);
+        logFile.close();
     }
-    else if (typeLogger == "console")
+
+    logFile.setFileName(filePath);
+    logFile.open(QIODevice::WriteOnly | QIODevice::Append);
+}
+
+void Logger::setLogToFile(bool flag)
+{
+    isLogToFile = flag;
+    if (flag)
     {
-        //qDebug() << msg;
-    }else
-    {
-        emit sigSendTextToLogger(msg);
+        QString filePath = logFolderPath + "/" + "log " + QDateTime::currentDateTime().toString("dd-MM-yyyy")+".txt";
+        setLogFile(filePath);
     }
 }
+
+void Logger::handleLog(QString msg, LogLevel logLevel)
+{
+    QString level;
+
+    switch (logLevel)
+    {
+        case INFO: level = "INFO"; break;
+        case WARNING: level = "WARNING"; break;
+        case ERROR: level = "ERROR"; break;
+        case CRITICAL: level = "CRITICAL"; break;
+    }
+
+    QString timeStamp = QDateTime::currentDateTime().toString("hh:mm:ss");
+    QString message = timeStamp + " " + level + " " + msg;
+
+
+    if (loggingType == LoggingType::WIDGET)
+    {
+        emit sigLogToWidget(message);
+    }
+    else if(loggingType == LoggingType::CONSOLE)
+    {
+        qDebug() << message;
+    }
+
+    if(isLogToFile)
+    {
+        QMutexLocker locker(&mutex);
+        if (logFile.isOpen())
+        {
+            QTextStream stream(&logFile);
+            stream << message << "\n";
+        }
+    }
+}
+
+void Logger::createDirectory()
+{
+    QString directoryPath = logFolderPath;
+    QDir dir(directoryPath);
+
+    if(!dir.exists()) dir.mkdir(".");
+
+}