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#include <iostream>
#include <string>
#include <sstream>
#include "../datetime"
using namespace std;
using namespace FBB;
int main()
{
DateTime dt; // Current UTC time
cout << " 1: " << dt << " (UTC Time)\n";
DateTime local(DateTime::LOCALTIME); // Current local time
cout << " 2: " << local << " (Local Time (LT))\n"
" Y: " << local.year() << " M: " << local.month() <<
" D: " << local.monthDayNr() << "\n"
" H: " << local.hours() << " M: " << local.minutes() <<
" S: " << local.seconds() << "\n"
" zoneshift: " << local.displayZoneShift() <<
" weekday: " << local.weekday() << "\n"
" yrDay: " << local.yearDay() <<
" yrDayNr: " << local.yearDayNr() <<
" weekNr: " << local.weekNr() << endl;
DateTime pst(-8 * 60); // Current PST
cout << " 3: " << pst << " (Current PST)\n";
// current local time
DateTime modify(dt.time(), DateTime::LOCALTIME);
cout << " 4: " << modify << " (Local time now equal to earlier UTC)\n";
cout << " " << modify.utc() << " (matching UTC time)\n";
cout << modify.dst() << endl;
modify.setDay(1); // 1st of this month
cout << " 5: " << modify << " (LT at 1st of month)\n";
cout << " DST active: " << modify.dst() << endl;
modify.setHours(25); // 01:xx.yy, 2nd of this month
cout << " 6: " << modify << " (previous LT at 2nd of month 01:xx;yy)\n";
cout << " DST active: " << modify.dst() << endl;
modify.setMinutes(00); // 01:00.yy, 2nd of this month
cout << " 7: " << modify << " (prev. LT at 00 min.)\n";
cout << " DST active: " << modify.dst() << endl;
// 01:00.yy, 2nd of Jan. next year
modify.setMonth(DateTime::JANUARY, DateTime::NEXT);
cout << " 8: " << modify << " (prev. LT at jan next yr)\n";
cout << " DST active: " << modify.dst() << endl;
modify.setMonth(-12); // 01:00.yy, 2nd of Jan. this year
cout << " 9: " << modify << " (prev. LT at jan this yr\n";
modify.setSeconds(90); // 01:01.30, 2nd of Jan. this year
cout << "10: " << modify << " (prev. LT at hh:01:30)\n";
modify.setTime(dt.time()); // back to current time
cout << "11: " << modify << " (LT again)\n";
modify.setWeekday(DateTime::MONDAY); // coming Monday
cout << "12: " << modify << " (LT next monday (or now's monday))\n";
modify.setYear(2000); // some years ago
cout << "13: " << modify << " (LT at 2000)\n";
struct tm timeStruct = *local.timeStruct();
modify.setFields(timeStruct, 0xff); // use all fields
modify = modify.utc();
cout << "14: " << modify << " (UTC via LT in timeStruct)\n";
DateTime local2(timeStruct, DateTime::LOCALTIME); // local time
cout << "15: " << local2 << " (LT again)\n";
DateTime local3(timeStruct, 2 * 60);
cout << "16: " << local3 << " (LT + 2 hours)\n";
cout << "\n"
"Using UTC time string `Tue Nov 18 15:06:29 2008'\n";
DateTime utcStr("Tue Nov 18 15:06:29 2008"); // LT string
cout << "17: " << utcStr << " " << utcStr.time() << " (UTC timestring)\n";
DateTime utcX(utcStr.time(), DateTime::UTC);
cout << "18: " << utcX << " " << utcX.time() << " (same)\n";
DateTime localStr("Tue Nov 18 15:06:29 2008", DateTime::LOCALTIME);
cout << "19: " << localStr << " (creating LT)\n";
DateTime localStr2("Tue Nov 18 15:06:29 2008", DateTime::LOCALTIME, +60);
cout << "20: " << localStr2 << " (creating LT + 1 hr (== UTC + 2 hr))\n";
DateTime timeStr3("Tue Nov 18 15:06:29 2008", 120, 60);
cout << "21: " << timeStr3 << " (creating UTC + 2 + 1 hr))\n";
timeStr3 += 31;
cout << "22: " << timeStr3 << " (same, 15:07:00)\n";
timeStr3 -= 7 * 60 + 15 * 3600;
cout << "23: " << timeStr3 << " (same, 03:00:00)\n";
timeStruct.tm_sec = 30;
timeStruct.tm_min = 30;
timeStruct.tm_hour = 4;
timeStruct.tm_mday = 1;
timeStruct.tm_mon = 1;
timeStruct.tm_year = 0;
timeStr3 += timeStruct;
cout << "24: " << timeStr3 << " (added 1 month, 1 day, 4:30:30)\n";
timeStr3 -= timeStruct;
cout << "25: " << timeStr3 << " (subtracted that again)\n";
timeStruct = *timeStr3.timeStruct();
--timeStruct.tm_mday;
timeStruct.tm_year -= (1970 - 1900);
timeStr3 -= timeStruct;
cout << "26: " << timeStr3 << " (begin of the epoch)\n";
DateTime dst(DateTime::LOCALTIME);
dst.setMonth(DateTime::AUGUST);
cout << "27: " << dst << ", DST: " << dst.dst() <<
" (LT in aug., show dst)\n";
cout << "28: " << dst.rfc2822() << " (same, rfc 2822)\n";
cout << "29: " << dst.rfc3339() << " (same, rfc 3339)\n";
dst.setMonth(DateTime::JANUARY);
cout << "30: " << dst << ", DST: " << dst.dst() <<
" (LT in jan., show dst)\n";
cout << "31: " << dst.rfc2822() << " (same, rfc 2822)\n";
cout << "32: " << dst.rfc3339() << " (same, rfc 3339)\n";
DateTime utcDst(dst.utc());
cout << "33: " << dst.timeZoneShift(3 * 60) << " (UTC + 3 time zones)\n";
cout << "34: " << dst << " (time in jan. again)\n";
cout << "35: " << utcDst << " (same, UTC)\n";
cout << "36: " << utcDst.localTime() << " (same, LT)\n";
cout << "37: " << utcDst.timeZoneShift(3 * 60) <<
" (UTC + 3 time zones)\n";
istringstream ins("Tue Nov 18 15:06:29 2008");
ins >> dst;
cout << "\n"
"Extracting `" << ins.str() << "'\n";
cout << "38: " << dst << " (extracted)\n";
cout << "39: " << dst.utc() << " (same, UTC)\n";
ins.str("Fri Jul 18 15:06:29 2008");
ins >> dst;
cout << "\n"
"Extracting `" << ins.str() << "'\n";
cout << "40: " << dst << " (extracted)\n";
cout << "41: " << dst.utc() << " (same, UTC)\n";
}
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