#include "Logger.h"

Logger::Logger() {
  // constructor
  fLogFileName = "DefaultLogfile.log";
  fFile.open(fLogFileName.c_str()); 
}

Logger::Logger(const string& filename) {
  // constructor
  fLogFileName = filename;
  fFile.open(filename.c_str()); 
}

Logger::~Logger() {
  // destructor
  fFile.close();
}


void Logger::append(string message) {
  // append this message in any case
  fFile << message <<endl;
}

void Logger::append(string level, string message) {
  // append this message in any case
  append(level+":  "+message);
}

void Logger::appendFatal(string emessage) {
  // append this message always, since it is a fatal message
  append("FATAL", emessage);
}

void Logger::appendError(string emessage) {
  // append this message always, since it is an error message
  append("ERROR", emessage);
}

void Logger::appendWarning(string wmessage) {
  // append this message only for debuglevel > 0
  if (fDebugLevel >= 1) append("Warning", wmessage);
}

void Logger::appendInfo(string imessage) {
  // append this message only for debuglevel > 1
  if (fDebugLevel >= 2) append("Info", imessage);
}

void Logger::appendDebug(string dmessage) {
  // append this message only for debuglevel > 2
  if (fDebugLevel >= 3) append("Debug", dmessage);
}

void Logger::appendTime() {
  // append local date and time
  time_t rawtime;
  struct tm* timeinfo;
  time(&rawtime);
  timeinfo = localtime(&rawtime);
  fFile << asctime(timeinfo);
}

Logger* Logger::getInstance() {
  // return a pointer to the instance of the object
  static Logger instance;
  return &instance;
}

void Logger::setlogfilename(const string& filename) { 
  // change name of logfile
  if( fLogFileName.compare(filename) ) { 
    fFile.close();
    fFile.open(filename.c_str());
    fLogFileName=filename;
  }
}