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

# jp: a SAT command line tool
# Copyright (C) 2009-2019 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/>.

from . import base
from sat.core.i18n import _
from sat.tools.common.ansi import ANSI as A
from sat.tools.common import date_utils
from sat_frontends.jp.constants import Const as C
from sat_frontends.jp import common

__commands__ = ["Info"]


class Disco(base.CommandBase):

    def __init__(self, host):
        extra_outputs = {'default': self.default_output}
        super(Disco, self).__init__(host, 'disco', use_output='complex', extra_outputs=extra_outputs, help=_('service discovery'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("jid", help=_("entity to discover"))
        self.parser.add_argument("-t", "--type", type=str, choices=('infos', 'items', 'both'), default='both', help=_("type of data to discover"))
        self.parser.add_argument("-n", "--node", default='', help=_("node to use"))
        self.parser.add_argument("-C", "--no-cache", dest='use_cache', action="store_false", help=_("ignore cache"))

    def start(self):
        self.get_infos = self.args.type in ('infos', 'both')
        self.get_items = self.args.type in ('items', 'both')
        jids = self.host.check_jids([self.args.jid])
        jid = jids[0]
        if not self.get_infos:
            self.gotInfos(None, jid)
        else:
            self.host.bridge.discoInfos(jid, node=self.args.node, use_cache=self.args.use_cache, profile_key=self.host.profile, callback=lambda infos: self.gotInfos(infos, jid), errback=self.error)

    def error(self, failure):
        print((_("Error while doing discovery [%s]") % failure))
        self.host.quit(1)

    def gotInfos(self, infos, jid):
        if not self.get_items:
            self.gotItems(infos, None)
        else:
            self.host.bridge.discoItems(jid, node=self.args.node, use_cache=self.args.use_cache, profile_key=self.host.profile, callback=lambda items: self.gotItems(infos, items), errback=self.error)

    def gotItems(self, infos, items):
        data = {}

        if self.get_infos:
            features, identities, extensions = infos
            features.sort()
            identities.sort(key=lambda identity: identity[2])
            data.update({
                'features': features,
                'identities': identities,
                'extensions': extensions})

        if self.get_items:
            items.sort(key=lambda item: item[2])
            data['items'] = items

        self.output(data)
        self.host.quit()

    def default_output(self, data):
        features = data.get('features', [])
        identities = data.get('identities', [])
        extensions = data.get('extensions', {})
        items = data.get('items', [])

        identities_table = common.Table(self.host,
                                        identities,
                                        headers=(_('category'),
                                                 _('type'),
                                                 _('name')),
                                        use_buffer=True)

        extensions_tpl = []
        extensions_types = list(extensions.keys())
        extensions_types.sort()
        for type_ in extensions_types:
            fields = []
            for field in extensions[type_]:
                field_lines = []
                data, values = field
                data_keys = list(data.keys())
                data_keys.sort()
                for key in data_keys:
                    field_lines.append(A.color('\t', C.A_SUBHEADER, key, A.RESET, ': ',
                                               data[key]))
                if len(values) == 1:
                    field_lines.append(A.color('\t', C.A_SUBHEADER, "value", A.RESET,
                                               ': ', values[0] or (A.BOLD + "UNSET")))
                elif len(values) > 1:
                    field_lines.append(A.color('\t', C.A_SUBHEADER, "values", A.RESET,
                                               ': '))

                    for value in values:
                        field_lines.append(A.color('\t  - ', A.BOLD, value))
                fields.append('\n'.join(field_lines))
            extensions_tpl.append('{type_}\n{fields}'.format(type_=type_,
                                                              fields='\n\n'.join(fields)))

        items_table = common.Table(self.host,
                                   items,
                                   headers=(_('entity'),
                                            _('node'),
                                            _('name')),
                                   use_buffer=True)

        template = []
        if features:
            template.append(A.color(C.A_HEADER, _("Features")) + "\n\n{features}")
        if identities:
            template.append(A.color(C.A_HEADER, _("Identities")) + "\n\n{identities}")
        if extensions:
            template.append(A.color(C.A_HEADER, _("Extensions")) + "\n\n{extensions}")
        if items:
            template.append(A.color(C.A_HEADER, _("Items")) + "\n\n{items}")

        print("\n\n".join(template).format(features = '\n'.join(features),
                                            identities = identities_table.display().string,
                                            extensions = '\n'.join(extensions_tpl),
                                            items = items_table.display().string,
                                           ))


class Version(base.CommandBase):

    def __init__(self, host):
        super(Version, self).__init__(host, 'version', help=_('software version'))
        self.need_loop=True

    def add_parser_options(self):
        self.parser.add_argument("jid", type=str, help=_("Entity to request"))

    def start(self):
        jids = self.host.check_jids([self.args.jid])
        jid = jids[0]
        self.host.bridge.getSoftwareVersion(jid, self.host.profile, callback=self.gotVersion, errback=self.error)

    def error(self, failure):
        print((_("Error while trying to get version [%s]") % failure))
        self.host.quit(1)

    def gotVersion(self, data):
        infos = []
        name, version, os = data
        if name:
            infos.append(_("Software name: %s") %  name)
        if version:
            infos.append(_("Software version: %s") %  version)
        if os:
            infos.append(_("Operating System: %s") %  os)

        print("\n".join(infos))
        self.host.quit()


class Session(base.CommandBase):

    def __init__(self, host):
        extra_outputs = {'default': self.default_output}
        super(Session, self).__init__(host, 'session', use_output='dict', extra_outputs=extra_outputs, help=_('running session'))
        self.need_loop=True

    def default_output(self, data):
        started = data['started']
        data['started'] = '{short} (UTC, {relative})'.format(
            short=date_utils.date_fmt(started),
            relative=date_utils.date_fmt(started, 'relative'))
        self.host.output(C.OUTPUT_DICT, 'simple', {}, data)

    def add_parser_options(self):
        pass

    def start(self):
        self.host.bridge.sessionInfosGet(self.host.profile, callback=self._sessionInfoGetCb, errback=self._sessionInfoGetEb)

    def _sessionInfoGetCb(self, data):
        self.output(data)
        self.host.quit()

    def _sessionInfoGetEb(self, error_data):
        self.disp(_('Error getting session infos: {}').format(error_data), error=True)
        self.host.quit(C.EXIT_BRIDGE_ERRBACK)


class Info(base.CommandBase):
    subcommands = (Disco, Version, Session)

    def __init__(self, host):
        super(Info, self).__init__(host, 'info', use_profile=False, help=_('Get various pieces of information on entities'))