#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# jp: a SAT command line tool
# Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""This module permits to manage XMPP accounts using in-band registration (XEP-0077)"""

from sat_frontends.jp.constants import Const as C
from sat.core.log import getLogger
log = getLogger(__name__)
from sat.core.i18n import _
from sat_frontends.jp import base
from sat_frontends.tools import jid

__commands__ = ["Account"]


class AccountCreate(base.CommandBase):

    def __init__(self, host):
        super(AccountCreate, self).__init__(host, 'create', use_profile=False, use_verbose=True, help=_(u'create a XMPP account'))
        self.need_loop = True

    def add_parser_options(self):
        self.parser.add_argument('jid', type=base.unicode_decoder, help=_(u'jid to create'))
        self.parser.add_argument('password', type=base.unicode_decoder, help=_(u'password of the account'))
        self.parser.add_argument('-p', '--profile', type=base.unicode_decoder, help=_(u"create a profile to use this account (default: don't create profile)"))
        self.parser.add_argument('-e', '--email', type=base.unicode_decoder, default="", help=_(u"email (usage depends of XMPP server)"))
        self.parser.add_argument('-H', '--host', type=base.unicode_decoder, default="", help=_(u"server host (IP address or domain, default: use localhost)"))
        self.parser.add_argument('-P', '--port', type=int, default=0, help=_(u"server port (IP address or domain, default: use localhost)"))

    def _setParamCb(self):
        self.host.bridge.setParam("Password", self.args.password, "Connection", profile_key=self.args.profile, callback=self.host.quit, errback=self.errback)

    def _session_started(self, dummy):
        self.host.bridge.setParam("JabberID", self.args.jid, "Connection", profile_key=self.args.profile, callback=self._setParamCb, errback=self.errback)

    def _profileCreateCb(self):
        self.disp(_(u"profile created"), 1)
        self.host.bridge.profileStartSession(self.args.password, self.args.profile, callback=self._session_started, errback=self.errback)

    def _profileCreateEb(self, failure_):
        self.disp(_(u"Can't create profile {profile} to associate with jid {jid}: {msg}").format(
            profile = self.args.profile,
            jid = self.args.jid,
            msg = failure_), error=True)
        self.host.quit(C.EXIT_BRIDGE_ERRBACK)

    def accountNewCb(self):
        self.disp(_(u"XMPP account created"), 1)
        if self.args.profile is not None:
            self.disp(_(u"creating profile"), 2)
            self.host.bridge.profileCreate(self.args.profile, self.args.password, "", callback=self._profileCreateCb, errback=self._profileCreateEb)
        else:
            self.host.quit()

    def accountNewEb(self, failure_):
        self.disp(_(u"Can't create new account on server {host} with jid {jid}: {msg}").format(
            host = self.args.host or u"localhost",
            jid = self.args.jid,
            msg = failure_), error=True)
        self.host.quit(C.EXIT_BRIDGE_ERRBACK)

    def start(self):
        self.host.bridge.inBandAccountNew(self.args.jid, self.args.password, self.args.email, self.args.host, self.args.port,
            callback=self.accountNewCb, errback=self.accountNewEb)



class AccountModify(base.CommandBase):

    def __init__(self, host):
        super(AccountModify, self).__init__(host, 'modify', help=_(u'change password for XMPP account'))
        self.need_loop = True

    def add_parser_options(self):
        self.parser.add_argument('password', type=base.unicode_decoder, help=_(u'new XMPP password'))

    def start(self):
        self.host.bridge.inBandPasswordChange(self.args.password, self.args.profile,
            callback=self.host.quit, errback=self.errback)


class AccountDelete(base.CommandBase):

    def __init__(self, host):
        super(AccountDelete, self).__init__(host, 'delete', help=_(u'delete a XMPP account'))
        self.need_loop = True

    def add_parser_options(self):
        self.parser.add_argument('-f', '--force', action='store_true', help=_(u'delete account without confirmation'))

    def _got_jid(self, jid_str):
        jid_ = jid.JID(jid_str)
        if not self.args.force:
            message = (u"You are about to delete the XMPP account with jid {jid_}\n"
                       u"This is the XMPP account of profile \"{profile}\"\n"
                       u"Are you sure that you want to delete this account ?".format(
                      jid_ = jid_,
                      profile=self.profile
                      ))
            res = raw_input("{} (y/N)? ".format(message))
            if res not in ("y", "Y"):
                self.disp(_(u"Account deletion cancelled"))
                self.host.quit(2)
        self.host.bridge.inBandUnregister(jid_.domain, self.args.profile,
            callback=self.host.quit, errback=self.errback)

    def start(self):
        self.host.bridge.asyncGetParamA("JabberID", "Connection", profile_key=self.profile,
                                        callback=self._got_jid, errback=self.errback)


class Account(base.CommandBase):
    subcommands = (AccountCreate, AccountModify, AccountDelete)

    def __init__(self, host):
        super(Account, self).__init__(host, 'account', use_profile=False, help=(u'XMPP account management'))