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

# jp: a SàT command line tool
# Copyright (C) 2009-2018 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 import common
from sat_frontends.jp.constants import Const as C
from functools import partial
import json
import os

__commands__ = ["Ticket"]

FIELDS_MAP = u'mapping'


class Get(base.CommandBase):

    def __init__(self, host):
        base.CommandBase.__init__(self, host, 'get', use_verbose=True,
                                  use_pubsub=True, pubsub_flags={C.MULTI_ITEMS},
                                  pubsub_defaults = {u'service': _(u'auto'), u'node': _(u'auto')},
                                  use_output=C.OUTPUT_LIST_XMLUI, help=_(u'get tickets'))
        self.need_loop=True

    def add_parser_options(self):
        pass

    def ticketsGetCb(self, tickets_data):
        self.output(tickets_data[0])
        self.host.quit(C.EXIT_OK)

    def getTickets(self):
        self.host.bridge.ticketsGet(
            self.args.service,
            self.args.node,
            self.args.max,
            self.args.items,
            u'',
            {},
            self.profile,
            callback=self.ticketsGetCb,
            errback=partial(self.errback,
                            msg=_(u"can't get tickets: {}"),
                            exit_code=C.EXIT_BRIDGE_ERRBACK))

    def start(self):
        common.URIFinder(self, os.getcwd(), 'tickets', self.getTickets, meta_map={})


class Import(base.CommandAnswering):
    # TODO: factorize with blog/import

    def __init__(self, host):
        super(Import, self).__init__(host, 'import', use_progress=True, help=_(u'import tickets from external software/dataset'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("importer", type=base.unicode_decoder, nargs='?', help=_(u"importer name, nothing to display importers list"))
        self.parser.add_argument('-o', '--option', action='append', nargs=2, default=[], metavar=(u'NAME', u'VALUE'),
            help=_(u"importer specific options (see importer description)"))
        self.parser.add_argument('-m', '--map', action='append', nargs=2, default=[], metavar=(u'IMPORTED_FIELD', u'DEST_FIELD'),
            help=_(u"specified field in import data will be put in dest field (default: use same field name, or ignore if it doesn't exist)"))
        self.parser.add_argument('-s', '--service', type=base.unicode_decoder, default=u'', metavar=u'PUBSUB_SERVICE',
            help=_(u"PubSub service where the items must be uploaded (default: server)"))
        self.parser.add_argument('-n', '--node', type=base.unicode_decoder, default=u'', metavar=u'PUBSUB_NODE',
            help=_(u"PubSub node where the items must be uploaded (default: tickets' defaults)"))
        self.parser.add_argument("location", type=base.unicode_decoder, nargs='?',
            help=_(u"importer data location (see importer description), nothing to show importer description"))

    def onProgressStarted(self, metadata):
        self.disp(_(u'Tickets upload started'),2)

    def onProgressFinished(self, metadata):
        self.disp(_(u'Tickets uploaded successfully'),2)

    def onProgressError(self, error_msg):
        self.disp(_(u'Error while uploading tickets: {}').format(error_msg),error=True)

    def error(self, failure):
        self.disp(_("Error while trying to upload tickets: {reason}").format(reason=failure), error=True)
        self.host.quit(1)

    def start(self):
        if self.args.location is None:
            for name in ('option', 'service', 'node'):
                if getattr(self.args, name):
                    self.parser.error(_(u"{name} argument can't be used without location argument").format(name=name))
            if self.args.importer is None:
                self.disp(u'\n'.join([u'{}: {}'.format(name, desc) for name, desc in self.host.bridge.ticketsImportList()]))
            else:
                try:
                    short_desc, long_desc = self.host.bridge.ticketsImportDesc(self.args.importer)
                except Exception as e:
                    msg = [l for l in unicode(e).split('\n') if l][-1] # we only keep the last line
                    self.disp(msg)
                    self.host.quit(1)
                else:
                    self.disp(u"{name}: {short_desc}\n\n{long_desc}".format(name=self.args.importer, short_desc=short_desc, long_desc=long_desc))
            self.host.quit()
        else:
            # we have a location, an import is requested
            options = {key: value for key, value in self.args.option}
            fields_map = dict(self.args.map)
            if fields_map:
                if FIELDS_MAP in options:
                    self.parser.error(_(u"fields_map must be specified either preencoded in --option or using --map, but not both at the same time"))
                options[FIELDS_MAP] = json.dumps(fields_map)
            def gotId(id_):
                self.progress_id = id_
            self.host.bridge.ticketsImport(self.args.importer, self.args.location, options, self.args.service, self.args.node, self.profile,
                callback=gotId, errback=self.error)


class Ticket(base.CommandBase):
    subcommands = (Get, Import)

    def __init__(self, host):
        super(Ticket, self).__init__(host, 'ticket', use_profile=False, help=_('tickets handling'))