/*
    Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

/** @file  src/local_time.h
 *  @brief LocalTime class.
 */

#ifndef LIBDCP_LOCAL_TIME_H
#define LIBDCP_LOCAL_TIME_H

#include <boost/date_time/posix_time/posix_time.hpp>
#include <string>

class local_time_test;

namespace dcp {

/** @class LocalTime
 *  @brief A representation of a local time (down to the second), including its offset
 *  from GMT (equivalent to xs:dateTime).
 *
 *  I tried to use boost for this, really I did, but I could not get it
 *  to parse strings of the required format (those that include time zones).
 *
 *  See http://www.w3.org/TR/xmlschema-2/#dateTime
 */
class LocalTime
{
public:
	LocalTime ();
	LocalTime (boost::posix_time::ptime);
	LocalTime (std::string);

	std::string as_string (bool with_millisecond = false) const;
	std::string date () const;
	std::string time_of_day (bool with_millisecond = false) const;

	bool operator== (LocalTime const & other) const;
	bool operator!= (LocalTime const & other) const;

private:
	friend class ::local_time_test;

	void set_local_time_zone ();

	/* Local time */
	int _year;   ///< year
	int _month;  ///< month number of the year (1-12)
	int _day;    ///< day number of the month (1-31)
	int _hour;   ///< hour number of the day (0-23)
	int _minute; ///< minute number of the hour (0-59)
	int _second; ///< second number of the minute (0-59)
	int _millisecond; ///< millisecond number of the second (0-999)

	int _tz_hour;   ///< hours by which this time is offset from UTC
	int _tz_minute; ///< minutes by which this time is offset from UTC
};

std::ostream&
operator<< (std::ostream& s, LocalTime const & t);

}

#endif