# Slixmpp: The Slick XMPP Library
# Copyright (C) 2012 Nathanael C. Fritz
# Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
import base64


from slixmpp.util import bytes
from slixmpp.xmlstream import ElementBase


class BitsOfBinary(ElementBase):
    name = 'data'
    namespace = 'urn:xmpp:bob'
    plugin_attrib = 'bob'
    interfaces = {'cid', 'max_age', 'type', 'data'}

    def get_max_age(self):
        try:
            return int(self._get_attr('max-age'))
        except ValueError:
            return None

    def set_max_age(self, value):
        if value is not None:
            self._set_attr('max-age', str(value))

    def get_data(self):
        return base64.b64decode(bytes(self.xml.text))

    def set_data(self, value):
        self.xml.text = bytes(base64.b64encode(value)).decode('utf-8')

    def del_data(self):
        self.xml.text = ''