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

# jp: a SàT 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/>.


import base
from sat.core.i18n import _
from sat_frontends.jp.constants import Const as C
from functools import partial

__commands__ = ["Invitation"]


class Create(base.CommandBase):

    def __init__(self, host):
        base.CommandBase.__init__(self, host, 'create', use_profile=False, use_output=C.OUTPUT_DICT, help=_(u'create and send an invitation'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("-j", "--jid", type=base.unicode_decoder, default='', help='jid of the invitee (default: generate one)')
        self.parser.add_argument("-P", "--password", type=base.unicode_decoder, default='', help='password of the invitee profile/XMPP account (default: generate one)')
        self.parser.add_argument("-n", "--name", type=base.unicode_decoder, default='', help='name of the invitee')
        self.parser.add_argument("-N", "--host-name", type=base.unicode_decoder, default='', help='name of the host')
        self.parser.add_argument("-e", "--email", type=base.unicode_decoder, default='', help='email to send the invitation to (if --no-email is set, email will just be saved)')
        self.parser.add_argument("--no-email", action="store_true", help='do NOT send invitation email')
        self.parser.add_argument("-l", "--lang", type=base.unicode_decoder, default='', help='main language spoken by the invitee')
        self.parser.add_argument("-u", "--url", type=base.unicode_decoder, default='', help='template to construt the URL')
        self.parser.add_argument("-s", "--subject", type=base.unicode_decoder, default='', help='subject of the invitation email (default: generic subject)')
        self.parser.add_argument("-b", "--body", type=base.unicode_decoder, default='', help='body of the invitation email (default: generic body)')
        self.parser.add_argument("-x", "--extra", metavar=('KEY', 'VALUE'), type=base.unicode_decoder, action='append', nargs=2, default=[], help='extra data to associate with invitation/invitee')
        self.parser.add_argument("-p", "--profile", type=base.unicode_decoder, default='', help="profile doing the invitation (default: don't associate profile")

    def invitationCreateCb(self, invitation_data):
        self.output(invitation_data)
        self.host.quit(C.EXIT_OK)

    def invitationCreateEb(self, failure_):
        self.disp(u"can't create invitation: {reason}".format(
            reason=failure_), error=True)
        self.host.quit(C.EXIT_BRIDGE_ERRBACK)

    def start(self):
        extra = dict(self.args.extra)
        email = self.args.email
        if self.args.no_email:
            if email:
                extra['email'] = email
        else:
            if not email:
                self.parser.error(_(u'you need to specify an email address to send email invitation'))

        self.host.bridge.invitationCreate(
            self.args.jid,
            self.args.password,
            self.args.name,
            self.args.host_name,
            email,
            self.args.lang,
            self.args.url,
            self.args.subject,
            self.args.body,
            extra,
            self.args.profile,
            callback=self.invitationCreateCb,
            errback=self.invitationCreateEb)


class Get(base.CommandBase):

    def __init__(self, host):
        base.CommandBase.__init__(self, host, 'get', use_profile=False, use_output=C.OUTPUT_DICT, help=_(u'get invitation data'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("id", type=base.unicode_decoder,
                                 help=_(u"invitation UUID"))
        self.parser.add_argument("-j", "--with-jid", action="store_true", help=_(u"start profile session and retrieve jid"))

    def output_data(self, data, jid_=None):
        if jid_ is not None:
            data['jid'] = jid_
        self.output(data)
        self.host.quit()

    def invitationGetCb(self, invitation_data):
        if self.args.with_jid:
            profile = invitation_data[u'guest_profile']
            def session_started(dummy):
                self.host.bridge.asyncGetParamA(
                    u'JabberID',
                    u'Connection',
                    profile_key=profile,
                    callback=lambda jid_: self.output_data(invitation_data, jid_),
                    errback=partial(self.errback,
                                    msg=_(u"can't retrieve jid: {}"),
                                    exit_code=C.EXIT_BRIDGE_ERRBACK))

            self.host.bridge.profileStartSession(
                invitation_data[u'password'],
                profile,
                callback=session_started,
                errback=partial(self.errback,
                                msg=_(u"can't start session: {}"),
                                exit_code=C.EXIT_BRIDGE_ERRBACK))
        else:
            self.output_data(invitation_data)

    def start(self):
        self.host.bridge.invitationGet(
            self.args.id,
            callback=self.invitationGetCb,
            errback=partial(self.errback,
                            msg=_(u"can't get invitation data: {}"),
                            exit_code=C.EXIT_BRIDGE_ERRBACK))


class Modify(base.CommandBase):

    def __init__(self, host):
        base.CommandBase.__init__(self, host, 'modify', use_profile=False, help=_(u'modify existing invitation'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("--replace", action='store_true', help='replace the whole data')
        self.parser.add_argument("-n", "--name", type=base.unicode_decoder, default='', help='name of the invitee')
        self.parser.add_argument("-N", "--host-name", type=base.unicode_decoder, default='', help='name of the host')
        self.parser.add_argument("-e", "--email", type=base.unicode_decoder, default='', help='email to send the invitation to (if --no-email is set, email will just be saved)')
        self.parser.add_argument("-l", "--lang", type=base.unicode_decoder, default='', help='main language spoken by the invitee')
        self.parser.add_argument("-x", "--extra", metavar=('KEY', 'VALUE'), type=base.unicode_decoder, action='append', nargs=2, default=[], help='extra data to associate with invitation/invitee')
        self.parser.add_argument("-p", "--profile", type=base.unicode_decoder, default='', help="profile doing the invitation (default: don't associate profile")
        self.parser.add_argument("id", type=base.unicode_decoder,
                                 help=_(u"invitation UUID"))

    def invitationModifyCb(self):
        self.disp(_(u'invitations have been modified correctly'))
        self.host.quit(C.EXIT_OK)

    def invitationModifyEb(self, failure_):
        self.disp(u"can't create invitation: {reason}".format(
            reason=failure_), error=True)
        self.host.quit(C.EXIT_BRIDGE_ERRBACK)

    def start(self):
        extra = dict(self.args.extra)
        for arg_name in ('name', 'host_name', 'email', 'lang', 'profile'):
            value = getattr(self.args, arg_name)
            if not value:
                continue
            if arg_name in extra:
                self.parser.error(_(u"you can't set {arg_name} in both optional argument and extra").format(arg_name=arg_name))
            extra[arg_name] = value
        self.host.bridge.invitationModify(
            self.args.id,
            extra,
            self.args.replace,
            callback=self.invitationModifyCb,
            errback=self.invitationModifyEb)


class Invitation(base.CommandBase):
    subcommands = (Create, Get, Modify)

    def __init__(self, host):
        super(Invitation, self).__init__(host, 'invitation', use_profile=False, help=_(u'invitation of user(s) without XMPP account'))