# -*- coding: iso-8859-1 -*-
"""time to string conversion utility functions"""
# Copyright (C) 2004  Bastian Kleineidam
#
# 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.

import time
import bk.i18n


def strtime (t):
    """return ISO 8601 formatted time"""
    return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(t)) + \
           strtimezone()


def strduration (duration):
    """return string formatted time duration"""
    name = bk.i18n._("seconds")
    if duration > 60:
        duration = duration / 60
        name = bk.i18n._("minutes")
    if duration > 60:
        duration = duration / 60
        name = bk.i18n._("hours")
    return " %.3f %s"%(duration, name)


def strtimezone ():
    """return timezone info, %z on some platforms, but not supported on all"""
    if time.daylight:
        zone = time.altzone
    else:
        zone = time.timezone
    return "%+04d" % int(-zone/3600)