feat(Logger): implemented basic logger

sources/server/Logger.hpp

@@ -0,0 +1,61 @@
+#ifndef LOGGER_HPP
+#define LOGGER_HPP
+
+#include "webserv.hpp"
+
+enum LogLevel {
+    INFO = 0,
+    DEBUG,
+    ERROR
+};
+
+#define LOG_FILE "logfile.txt"
+
+class Logger {
+public:
+    static void log_message(const string& message, LogLevel level, bool toFile = false)
+    {
+        string logMessage =
+            "[" + _get_current_time() + "]" + _level_to_string(level) + ": " + message;
+        if (toFile) {
+            ofstream _logFile;
+            _logFile.open(LOG_FILE, std::ios_base::app);
+            if (!_logFile.is_open())
+                THROW_EXCEPTION_WITH_INFO("Log: could not open log file");
+
+            _logFile << logMessage << endl;
+            _logFile.close();
+        }
+        else
+            cout << logMessage << endl;
+    }
+
+private:
+    static LogLevel _level;
+
+    static string _get_current_time()
+    {
+        time_t     rawtime;
+        struct tm* timeInfo;
+        char       buffer[80];
+
+        time(&rawtime);
+        timeInfo = localtime(&rawtime);
+
+        strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", timeInfo);
+        return string(buffer);
+    }
+    static string _level_to_string(LogLevel level)
+    {
+        switch (level) {
+            case INFO:  return "INFO";
+            case DEBUG: return "DEBUG";
+            case ERROR: return "ERROR";
+        }
+    }
+
+    Logger();
+    ~Logger();
+};
+
+#endif // LOGGER_HPP