import locale

class DateTime:
    def __init__(self, datetime):
        self.datetime = datetime

    def getEXIF(self):
        # TODO: timezone mojo
        return self.datetime.strftime("%Y:%m:%d %H:%M:%S")
    
    def getISO8601(self):
        # TODO: timezone mojo
        return self.datetime.strftime("%Y-%m-%dT%H:%M:%SZ")
    
    def getLocaleDateTime(self):
        return self.datetime.strftime(locale.nl_langinfo(locale.D_T_FMT))

    def getLocaleDate(self):
        return self.datetime.strftime(locale.nl_langinfo(locale.D_FMT))
    
    def getLocaleTime(self):
        return self.datetime.strftime(locale.nl_langinfo(locale.T_FMT))

def fromTimestamp(seconds):
    from datetime import datetime
    return DateTime(datetime.utcfromtimestamp(seconds))

def fromTuple(t):
    from datetime import datetime
    return DateTime(datetime.utcfromtimestamp(time.mktime(t)))

def fromISO8601(s):
    import time
    try:
        return fromTimestamp(time.mktime(time.strptime(s, "%Y-%m-%dT%H:%M:%SZ")))
    except ValueError:
        return fromTimestamp(time.mktime(time.strptime(s, "%Y-%m-%d")))
        
def fromEXIF(s):
    import time
    return fromTimestamp(time.mktime(time.strptime(s, "%Y:%m:%d %H:%M:%S")))

if __name__ == "__main__":
    def printAll(d):
        print d.getLocaleDateTime()
        print d.getLocaleDate()
        print d.getLocaleTime()
        print d.getEXIF()
        print d.getISO8601()
    import os.path
    printAll(fromTimestamp(os.path.getmtime(__file__)))
    printAll(fromEXIF("2005:01:06 12:14:42"))
    printAll(fromISO8601("2005-01-06T12:14:42Z"))