///////////////////////////////////////////////////////////////////////
//  SysTime.cpp  - Win32 API-based helper functions for system time  //
//  ver 1.0                                                          //
//  Platform:      Dell Precision T7400, Win-7 Pro                   //
//  Application:   CSE687 Project #3, Spring 2010                    //
//  Author:        Jim Fawcett, Syracuse University CST 4-187        //
//                 (315) 443-3948, jfawcett@twcny.rr.com             //
///////////////////////////////////////////////////////////////////////

#include "SysTime.h"
#include <iostream>
#include <sstream>

using namespace Win32Tools;

template <typename T>
std::string ToString(const T& t)
{
  std::ostringstream temp;
  temp.fill('0');
  temp.width(2);
  temp << t;
  return temp.str();
}

std::string SystemTime::getSystemTime()
{
  // Note:
  // Milliseconds may have up to three characters
  // Year has four characters
  // However, the iostream width(int) function sets
  // the field width to the specified OR to the number
  // of characters required to represent the value,
  // using whichever is larger, so this just works.

  SYSTEMTIME st;
  ::GetLocalTime(&st);
  std::string time = ToString(st.wHour);
  time.append(":");
  time.append(ToString(st.wMinute));
  time.append(":");
  time.append(ToString(st.wSecond));
  time.append(":");
  time.append(ToString(st.wMilliseconds));
  return time;
}

std::string SystemTime::getSystemDate()
{
  SYSTEMTIME st;
  ::GetLocalTime(&st);
  std::string time = ToString(st.wMonth);
  time.append("/");
  time.append(ToString(st.wDay));
  time.append("/");
  time.append(ToString(st.wYear));
  return time;
}

void main()
{
  std::cout << "\n  Demonstrating SystemTime operations";
  std::cout << "\n =====================================\n";

  std::cout << "\n  System time = " << SystemTime::getSystemTime();
  std::cout << "\n  System date = " << SystemTime::getSystemDate();
  std::cout << "\n\n";
}