# DeGAL - A pretty simple web image gallery
# Copyright (C) 2007 Tero Marttila
# http://marttila.de/~terom/degal/
#
# 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.,
# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#

# template helper functions
import urllib
from formatbytes import formatbytes
from datetime import datetime

def iter_is_first (seq) :
    flag = True
    
    for item in seq :
        yield item, flag
        flag = False
        
def url_for_page (page) :
    assert page >= 0

    if page > 0 :
        return  'index_%d.html' % page
    else :
        return 'index.html'

def tag_for_img (page, img) :
    return """<a href="%s"><img src="%s" /></a>""" % (page, img)

def format_filesize (size) :
    return formatbytes(size, forcekb=False, largestonly=True, kiloname='KiB', meganame='MiB', bytename='B', nospace=False)

def format_timestamp (ts) :
    return datetime.fromtimestamp(ts).strftime("%Y-%m-%d %H:%M:%S")

def format_imgsize (size) :
    return "%dx%d" % size