/////////////////////////////////////////////////////
// MT2Q1 - Trace is a std::string                  //
//                                                 //
// Jim Fawcett, CSE687 - OOD Midterm, Spring 2013  //
/////////////////////////////////////////////////////

#include <string>
#include <iostream>
#include <chrono>
#include <ctime>
#include "../MTutility/MTutility.h"

class Tracer : public std::string {
public:
  Tracer(const std::string& name) : _name(name) {}
  void log(const std::string& msg);
  void add(const std::string& msg);
private:
  std::string _name;
};

std::string getTime()
{
  using namespace std::chrono;
  std::time_t tt = system_clock::to_time_t (system_clock::now());
  return ctime(&tt);
}

void Tracer::log(const std::string& msg)
{
  *this += _name + " : " + std::string(getTime()) + msg + "\n";
}

void Tracer::add(const std::string& msg)
{
  *this += msg + "\n";
}

int main()
{
  Title("MT2Q1 - Tracer as std::string");
  std::cout << "\n";

  Tracer trace("log");
  trace.log("first piece of information");
  trace.add("second piece of information");
  ::_sleep(2000);
  trace.log("still more information");

  // trace is a string so we can do this:
  trace += "external insertion : " + getTime() + "outside information";
  std::cout << trace << "\n\n";
  return 0;
}