// Zoe AIM Away Message RSS Feed Generator
//
// Seth King and Douglas Thrift
//
// $Id$

#ifndef _Stamp_hpp_
#define _Stamp_hpp_

#include "Zoe.hpp"

#include <ctime>

template<int Seconds>
class Period
{
private:
	std::time_t seconds;
public:
	Period(std::time_t period) : seconds(period * Seconds) {}
	operator std::time_t() const { return seconds; }
};

typedef Period<60> Minute;
typedef Period<3600> Hour;
typedef Period<86400> Day;

class Stamp
{
private:
	std::time_t when;
	std::tm stamp;
public:
	Stamp(std::time_t when = std::time(NULL)) : when(when) { gmtime_r(&when,
		&stamp); }
	Stamp(const ext::String& when);
	ext::String get822() const;
	ext::String getW3() const;
	ext::String get8601() const;
	ext::String getDate() const;
	ext::String getTime() const;
	void setSeconds(int seconds);
	void setMinutes(int minutes);
	operator ext::String() const;
	Stamp operator+(std::time_t seconds) const { return when + seconds; }
	Stamp operator-(std::time_t seconds) const { return when - seconds; }
	bool operator<(const Stamp& stamp) const { return when < stamp.when; }
	bool operator>(const Stamp& stamp) const { return when > stamp.when; }
};

inline ios::PrintWriter& operator<<(ios::PrintWriter& pout, const Stamp& stamp)
{
	return pout << ext::String(stamp);
}

#endif // _Stamp_hpp_