# -*- coding: utf-8 -*-

# vim:set expandtab tabstop=4 shiftwidth=4:

################################################################################

#

# Copyright (C) 2007-2012 CS-SI

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License version 2 as

# published by the Free Software Foundation.

#

# 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 General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

################################################################################

"""

Un plugin pour VigiBoard qui ajoute 3 colonnes au tableau des événements :

    -   la première colonne contient l'état d'acquittement de l'événement.

    -   la seconde colonne contient un lien permettant d'éditer certaines

        propriétés associées à l'événement corrélé.

    -   la dernière colonne permet de (dé)sélectionner l'événement pour

        effectuer un traitement par lot.

"""

import urllib

import tg

import tw.forms as twf

from pylons.i18n import lazy_ugettext as l_

from vigilo.models.tables import CorrEvent, StateName

from vigilo.models.functions import sql_escape_like

from vigiboard.controllers.plugins import VigiboardRequestPlugin, ITEMS

class PluginStatus(VigiboardRequestPlugin):

    """

    Ajoute des colonnes permettant de voir le statut d'acquittement

    d'un événement corrélé et de modifier certaines de ses propriétés.

    """

    def get_generated_columns_count(self):

        """

        Renvoie le nombre de colonnes que ce plugin ajoute.

        Ce plugin en ajoute 4, au lieu de 1 comme la plupart des plugins.

        """

        return 4

    def get_search_fields(self):

        options = [

            ('', l_('All alerts')),

            # On doit passer un type basestring pour les options.

            # Donc, on convertit les constantes (entiers) en type str.

            (str(CorrEvent.ACK_NONE),   l_('New alerts')),

            (str(CorrEvent.ACK_KNOWN),  l_('Alerts marked as Acknowledged')),

            (str(CorrEvent.ACK_CLOSED), l_('Alerts marked as Closed')),

        ]

        return [

            twf.TextField(

                'trouble_ticket',

                label_text=l_('Trouble Ticket'),

                validator=twf.validators.String(if_missing=None),

            ),

            twf.SingleSelectField(

                'ack',

                label_text=l_('Acknowledgement Status'),

                options=options,

                validator=twf.validators.OneOf(

                    dict(options).keys(),

                    if_invalid=None,

                    if_missing=None,

                ),

            ),

        ]

    def handle_search_fields(self, query, search, state, subqueries):

        if state != ITEMS:

            return

        if search.get('trouble_ticket'):

            tt = sql_escape_like(search['trouble_ticket'])

            query.add_filter(CorrEvent.trouble_ticket.ilike(tt))

        if search.get('ack'):

            try:

                query.add_filter(CorrEvent.ack == int(search['ack']))

            except (ValueError, TypeError):

                # On ignore silencieusement le critère de recherche erroné.

                pass

    def get_data(self, event):

        cause = event[0].cause

        ack = event[0].ack

        state = StateName.value_to_statename(cause.current_state)

        trouble_ticket_id = None

        trouble_ticket_link = None

        if event[0].trouble_ticket:

            trouble_ticket_id = event[0].trouble_ticket

            trouble_ticket_link = tg.config['vigiboard_links.tt'] % {

                'id': event[0].idcorrevent,

                'host': event[1] and urllib.quote(event[1], '') or event[1],

                'service': event[2] and urllib.quote(event[2], '') or event[2],

                'tt': trouble_ticket_id and \

                        urllib.quote(trouble_ticket_id, '') or \

                        trouble_ticket_id,

            }

        return {

            'trouble_ticket_link': trouble_ticket_link,

            'trouble_ticket_id': trouble_ticket_id,

            'state': state,

            'id': event[0].idcorrevent,

            'ack': ack,

        }