# Slixmpp: The Slick XMPP Library
# Copyright (C) 2012 Erik Reuterborg Larsson, Nathanael C. Fritz
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
from slixmpp.xmlstream.stanzabase import ElementBase, ET


class Request(ElementBase):
    namespace = 'urn:xmpp:receipts'
    name = 'request'
    plugin_attrib = 'request_receipt'
    interfaces = {'request_receipt'}
    sub_interfaces = interfaces
    is_extension = True

    def setup(self, xml=None):
        self.xml = ET.Element('')
        return True

    def set_request_receipt(self, val):
        self.del_request_receipt()
        if val:
            parent = self.parent()
            parent._set_sub_text("{%s}request" % self.namespace, keep=True)
            if not parent['id']:
                if parent.stream:
                    parent['id'] = parent.stream.new_id()

    def get_request_receipt(self):
        parent = self.parent()
        if parent.xml.find("{%s}request" % self.namespace) is not None:
            return True
        else:
            return False

    def del_request_receipt(self):
        self.parent()._del_sub("{%s}request" % self.namespace)


class Received(ElementBase):
    namespace = 'urn:xmpp:receipts'
    name = 'received'
    plugin_attrib = 'receipt'
    interfaces = {'receipt'}
    sub_interfaces = interfaces
    is_extension = True

    def setup(self, xml=None):
        self.xml = ET.Element('')
        return True

    def set_receipt(self, value):
        self.del_receipt()
        if value:
            parent = self.parent()
            xml = ET.Element("{%s}received" % self.namespace)
            xml.attrib['id'] = value
            parent.append(xml)

    def get_receipt(self):
        parent = self.parent()
        xml = parent.xml.find("{%s}received" % self.namespace)
        if xml is not None:
            return xml.attrib.get('id', '')
        return ''

    def del_receipt(self):
        self.parent()._del_sub('{%s}received' % self.namespace)