#!/usr/bin/env python
# 
# ***** BEGIN LICENSE BLOCK *****
# Source last modified: $Id: datelib.py,v 1.2 2005/06/30 18:21:29 hubbe Exp $
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import string
import re
import time

_re_rev_date1 = re.compile(
    "([0-9]{4})-([0-9][0-9])-([0-9][0-9]) "\
    "([0-9][0-9]):([0-9][0-9]):([0-9][0-9])")

_re_rev_date12 = re.compile(
    "([0-9]{4})/([0-9][0-9])/([0-9][0-9]) "\
    "([0-9][0-9]):([0-9][0-9]):([0-9][0-9])")

_re_rev_date2 = re.compile(
    "([0-9]{4})-([0-9][0-9])-([0-9][0-9])")

def date_to_ticks(date):
    date = string.strip(date)

    temp = None

    match = _re_rev_date2.match(date)
    if match:
        temp = tuple(map(int, match.groups())) + (0, 0, 0)
    else:
        match = _re_rev_date1.match(date)
        if not match:
            match = _re_rev_date12.match(date)

        if match:
            temp = tuple(map(int, match.groups()))

    if temp:
        dst=time.localtime(time.mktime(temp + (0,1,0)))[8]
        return time.mktime(temp + (0,1,dst))

    return None

def date_to_gmticks(date):
    t=date_to_ticks(date)
    if not t:
        return t
    return t - time.timezone

def asctime(ticks):
    return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(ticks))

def cvstime(ticks):
    return time.strftime("%Y/%m/%d %H:%M:%S", time.localtime(ticks))

def cvs_server_time(ticks):
    return time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(ticks))


def get_day(ticks):
    (t, t, day, t, t, t, t, t, t) = time.localtime(ticks)
    return day


def asctime_from_seconds(sec):
    seconds = sec % 60
    minutes = (sec / 60) % 60
    hours   = sec / 3600

    return "%d:%02d.%02d" % (hours, minutes, seconds)


## This may not technically belong here....
def fix_tag(str):
    """Return (tag, timestamp) given a tag or timestamp"""
    if " " in str:
        return ( "", str )
    if "/" in str:
        return ( "", str +" 00:00:00" )

    return (str, "")
        

def timestamp():
    t = time.localtime(time.time())
    return "%04d-%02d-%02d %02d:%02d:%02d" % t[:6]

