#!/usr/bin/env python2.7
# -*- coding: utf-8 -*-

from collections import namedtuple
from twisted.internet import defer
from libervia.web.server.constants import Const as C
from libervia.backend.core.i18n import D_
from libervia.backend.tools import config
from libervia.backend.tools.common import email
from libervia.backend.core import exceptions
from libervia.backend.core.log import getLogger

log = getLogger(__name__)

name = "association_membership"
template = "association/membership.html"

FIELDS = (
    'name',
    'firstname',
    'address',
    'email',
    'jid',
    'subscription',
    'reference',
    'comment',
    'mailing_list',
    'documents_read',
    )
REQUIRED = ('name', 'firstname', 'address', 'email', 'subscription')
FormData = namedtuple("FormData", FIELDS)

SUBJECT_ADMIN = D_("New subscription to the association")
BODY_ADMIN = D_("""\
New subscription received:

{fields_list}""").format(
    fields_list="\n".join("- {0}: {{{0}}}".format(f) for f in FIELDS)
    )

SUBJECT = D_("Your association membership request")
BODY = D_("""\
Hello {firstname},

you request to join the "Salut à Toi" association has been well received.
Thank you and welcome to the SàT community.

You can contact us at contact"""
# we split the address to avoid
# it being recognized too easily by spam bots
+ '@' + 'salut-a-toi' + '.org'
"""
or on the official XMPP chat room:
xmpp: libervia@chat.jabberfr.org
web: https://chat.jabberfr.org/converse.js/libervia@chat.jabberfr.org

The Salut à Toi team
""")

WARNING_MSG_NOT_READ = D_(
    "You must have read the documents to validate your membership request")
WARNING_MSG_MISSING_FIELDS = D_(
    "The form you posted is not complete, we can't validate this membership request.\n"
    "Please fill all the required fields, thank you!")

async def on_data_post(self, request):
    data = FormData(*self.get_posted_data(request, FIELDS, raise_on_missing=False))
    if any(not getattr(data, f) for f in REQUIRED):
        log.warning("missing data fields:\n{data}".format(data=data))
        raise exceptions.DataError(WARNING_MSG_MISSING_FIELDS)
    if not C.bool(data.documents_read or C.BOOL_FALSE):
        log.warning("documents_read has not been checked:\n{data}".format(data=data))
        raise exceptions.DataError(WARNING_MSG_NOT_READ)
    addresses = config.config_get(
        self.host.main_conf,
        None,
        "email_admins_list",
        default=Exception)
    await email.send_email(
        self.host.main_conf,
        addresses,
        SUBJECT_ADMIN,
        BODY_ADMIN.format(**data._asdict()),
        )
    await email.send_email(
        self.host.main_conf,
        data.email,
        SUBJECT,
        BODY.format(**data._asdict()),
        )