////////////////////////////////////////////////////////////////////////////////
/*! @file Time.h   Время.
- Part of RANet - Research Assistant Net Library (based on ANSI C++).
- Copyright(C) 2010, Viktor E. Bursian, St.Petersburg, Russia.
                     Viktor.Bursian@mail.ioffe.ru
*///////////////////////////////////////////////////////////////////////////////
#ifndef Time_H
#define Time_H
#include "Storable.h"
namespace RA {
//------------------------------------------------------------------------------

ANNOUNCE_CLASS(sTime)

//-------------------------------------------------------------------- sTime ---
/*! Absolute date&time with accuracy of 1ms

*/
class RANet_EXPORT  sTime : public virtual sStorable
{
  STORABLE(sTime)
  public://static
    static sTime              FromMillisecondsSinceEpoch (qint64  ms)
                                { sTime T; T._UTC=ms; return T; }
    static sTime              FromISO_8601 (rcsString);
    static real               ToSeconds (rcsString);

  public:
                              sTime (); /*!< Creates current time */
                              sTime (rcsTime);
                              sTime (int year ,int month ,int date
                                    ,int hour=0 ,int minute=0 ,int second=0
                                    ,int millisecond=0);
    rsTime                    operator = (rcsTime);
    bool                      operator == (rcsTime  other) const;
    bool                      operator < (rcsTime  other) const;
    int                       Year () const;
    int                       Month () const;
    int                       Day () const;
    sString                   Text () const;
    sString                   ToISO_8601 () const
                                { return Text(); }
    rsTime                    operator += (real  seconds);
    sTime                     operator + (real  seconds) const;
    real /*seconds*/          operator - (rcsTime  other) const;
    qint64                    ToMillisecondsSinceEpoch () const
                                { return _UTC; }
    sTime                     LastMidnight () const;
    qint64                    ToMillisecondsSinceMidnight () const
                                { return _UTC - LastMidnight()._UTC; }

  private: //fields
    qint64                    _UTC;//!< milliseconds after 1970-01-01 00:00:00
};

/*
2**32       4 294 967 296
60*60*24*1000= 86 400 000
2100*366=         768 600
*/

//------------------------------------------------------------------------------
} //namespace RA
#endif