from piki_conf import *
import os, time, stat, re

def getpath(wikiword):
    return os.path.join(text_dir, wikiword)

def getimagepath(wikiword, type):
    extension = re.search("image/([a-zA-Z]+)$", type).group(1)
    return os.path.join(image_dir, wikiword + "." + extension)

def report_status(status_code, status_msg, body):
    return (status_code, """Content-type: text/plain \nStatus: %(status_code)d %(status_msg)s\n\n%(body)s """ % vars())

def currentISOTime():
    "Current time in ISO format"
    
    import time
    tz = time.timezone/3600
    return time.strftime("%Y-%m-%dT%H:%M:%S-", time.localtime()) + ("%(tz)02d:00" % vars())

def last_modified_iso(filename):
    """Time a file was last modified, in ISO format.
    Returns None if the file does not exist."""

    if not path.exists(filename):
        return None
    modtime = time.localtime(os.stat(filename)[stat.ST_MTIME])
    tz = time.timezone/3600
    return time.strftime("%Y-%m-%dT%H:%M:%S-", modtime) + ("%(tz)02d:00" % vars())