# Slixmpp: The Slick XMPP Library
# Copyright (C) 2015 Emmanuel Gil Peyrot
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
import asyncio
import logging
from uuid import uuid4

from slixmpp.plugins import BasePlugin, register_plugin
from slixmpp import future_wrapper, Iq, Message
from slixmpp.exceptions import XMPPError, IqError, IqTimeout
from slixmpp.jid import JID
from slixmpp.xmlstream import JID, register_stanza_plugin
from slixmpp.xmlstream.handler import Callback
from slixmpp.xmlstream.matcher import StanzaPath
from slixmpp.plugins.xep_0070 import stanza, Confirm


log = logging.getLogger(__name__)


class XEP_0070(BasePlugin):

    """
    XEP-0070 Verifying HTTP Requests via XMPP
    """

    name = 'xep_0070'
    description = 'XEP-0070: Verifying HTTP Requests via XMPP'
    dependencies = {'xep_0030'}
    stanza = stanza

    def plugin_init(self):
        register_stanza_plugin(Iq, Confirm)
        register_stanza_plugin(Message, Confirm)

        self.xmpp.register_handler(
            Callback('Confirm',
                 StanzaPath('iq@type=get/confirm'),
                 self._handle_iq_confirm))

        self.xmpp.register_handler(
            Callback('Confirm',
                 StanzaPath('message/confirm'),
                 self._handle_message_confirm))

    def plugin_end(self):
        self.xmpp.remove_handler('Confirm')
        self.xmpp['xep_0030'].del_feature(feature='http://jabber.org/protocol/http-auth')

    def session_bind(self, jid):
        self.xmpp['xep_0030'].add_feature('http://jabber.org/protocol/http-auth')

    @future_wrapper
    def ask_confirm(self, jid, id, url, method, *, ifrom=None, message=None):
        jid = JID(jid)
        if jid.resource:
            stanza = self.xmpp.Iq()
            stanza['type'] = 'get'
        else:
            stanza = self.xmpp.Message()
            stanza['thread'] = uuid4().hex
        stanza['from'] = ifrom
        stanza['to'] = jid
        stanza['confirm']['id'] = id
        stanza['confirm']['url'] = url
        stanza['confirm']['method'] = method
        if not jid.resource:
            if message is not None:
                stanza['body'] = message.format(id=id, url=url, method=method)
            stanza.send()
            return stanza
        else:
            return stanza.send()

    def _handle_iq_confirm(self, iq):
        self.xmpp.event('http_confirm_iq', iq)
        self.xmpp.event('http_confirm', iq)

    def _handle_message_confirm(self, message):
        self.xmpp.event('http_confirm_message', message)
        self.xmpp.event('http_confirm', message)