# This file is part of Gajim.
#
# Gajim is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; version 3 only.
#
# Gajim 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 Gajim.  If not, see <http://www.gnu.org/licenses/>.

# XEP-0107: User Mood

from typing import Any
from typing import Dict
from typing import List  # pylint: disable=unused-import
from typing import Optional
from typing import Tuple

import logging

import nbxmpp
from gi.repository import GLib

from gajim.common.const import PEPEventType, MOODS
from gajim.common.exceptions import StanzaMalformed
from gajim.common.modules.pep import AbstractPEPModule, AbstractPEPData

log = logging.getLogger('gajim.c.m.user_mood')


class UserMoodData(AbstractPEPData):

    type_ = PEPEventType.MOOD

    def as_markup_text(self) -> str:
        if self.data is None:
            return ''
        mood = self._translate_mood(self.data['mood'])
        markuptext = '<b>%s</b>' % GLib.markup_escape_text(mood)
        if 'text' in self.data:
            text = self.data['text']
            markuptext += ' (%s)' % GLib.markup_escape_text(text)
        return markuptext

    @staticmethod
    def _translate_mood(mood: str) -> str:
        if mood in MOODS:
            return MOODS[mood]
        return mood


class UserMood(AbstractPEPModule):

    name = 'mood'
    namespace = nbxmpp.NS_MOOD
    pep_class = UserMoodData
    store_publish = True
    _log = log

    def _extract_info(self, item: nbxmpp.Node) -> Optional[Dict[str, str]]:
        mood_dict = {}
        mood_tag = item.getTag('mood', namespace=nbxmpp.NS_MOOD)
        if mood_tag is None:
            raise StanzaMalformed('No mood node')

        if not mood_tag.getChildren():
            return None

        for child in mood_tag.getChildren():
            name = child.getName().strip()
            if name == 'text':
                mood_dict['text'] = child.getData()
            else:
                mood_dict['mood'] = name

        if 'mood' not in mood_dict:
            raise StanzaMalformed('No mood value found')
        return mood_dict

    def _build_node(self, data: Optional[Tuple[str, str]]) -> nbxmpp.Node:
        item = nbxmpp.Node('mood', {'xmlns': nbxmpp.NS_MOOD})
        if data is None:
            return item

        mood, text = data
        if not mood:
            return item
        item.addChild(mood)

        if text:
            item.addChild('text', payload=text)
        return item


def get_instance(*args: Any, **kwargs: Any) -> Tuple[UserMood, str]:
    return UserMood(*args, **kwargs), 'UserMood'