source resturcturing + CMake

1 files changed, 111 insertions, 0 deletions

diff --git a/include/logging.h b/include/logging.h
new file mode 100644
index 0000000..b43a969
--- /dev/null
+++ b/include/logging.h
@@ -0,0 +1,111 @@
+#pragma once
+
+#include <string>
+#include <chrono>
+#include <cstdio>
+#include <cstdlib>
+#include <ctime>
+#include <iostream>
+#include <sstream>
+
+#include "settings.h"
+
+using namespace std;
+
+namespace crow
+{
+	enum class LogLevel
+	{
+		CRITICAL,
+		ERROR,
+		WARNING,
+		INFO,
+		DEBUG
+	};
+
+	class ILogHandler {
+		public:
+			virtual void log(string message, LogLevel level) = 0;
+	};
+
+	class CerrLogHandler : public ILogHandler {
+		public:
+			void log(string message, LogLevel level) override {
+				cerr << message;
+			}
+	};
+
+	class logger {
+
+		private:
+			//
+			static string timeStamp()
+			{
+				char date[32];
+			  	time_t t = time(0);
+			  	strftime(date, sizeof(date), "%Y-%m-%d %H:%M:%S", gmtime(&t));
+			  	return string(date);
+			}
+
+		public:
+
+			//
+			static LogLevel currentLevel;
+			static std::shared_ptr<ILogHandler> currentHandler;
+
+			logger(string prefix, LogLevel level) : m_prefix(prefix), m_level(level) {
+
+			}
+			~logger() {
+	#ifdef CROW_ENABLE_LOGGING
+				if(m_level <= currentLevel) {
+					ostringstream str;
+					str << "(" << timeStamp() << ") [" << m_prefix << "] " << m_stringStream.str() << endl;
+					currentHandler->log(str.str(), m_level);
+				}
+	#endif
+			}
+
+			//
+			template <typename T>
+			logger& operator<<(T const &value) {
+
+	#ifdef CROW_ENABLE_LOGGING
+				if(m_level <= currentLevel) {
+	    			m_stringStream << value;
+	    		}
+	#endif
+	    		return *this;
+			}
+
+			//
+			static void setLogLevel(LogLevel level) {
+				currentLevel = level;
+			}
+
+			static void setHandler(std::shared_ptr<ILogHandler> handler) {
+				currentHandler = handler;
+			}
+
+		private:
+
+			//
+			ostringstream m_stringStream;
+			string m_prefix;
+			LogLevel m_level;
+	};
+
+	//
+	LogLevel logger::currentLevel = (LogLevel)CROW_LOG_LEVEL;
+	std::shared_ptr<ILogHandler> logger::currentHandler = std::make_shared<CerrLogHandler>();
+
+}
+
+#define CROW_LOG_CRITICAL	crow::logger("CRITICAL", crow::LogLevel::CRITICAL)
+#define CROW_LOG_ERROR		crow::logger("ERROR   ", crow::LogLevel::ERROR)
+#define CROW_LOG_WARNING	crow::logger("WARNING ", crow::LogLevel::WARNING)
+#define CROW_LOG_INFO		crow::logger("INFO    ", crow::LogLevel::INFO)
+#define CROW_LOG_DEBUG		crow::logger("DEBUG   ", crow::LogLevel::DEBUG)
+
+
+