# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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/>.

from __future__ import annotations

import logging
from pathlib import Path

from gi.repository import Gtk, Adw

from gajim.plugins.gajimplugin import GajimPluginConfig
from gajim.plugins.plugins_i18n import _

from .. import helper

log = logging.getLogger('gajim.p.stt_voice_messages_sttbox')

class STTBox(Gtk.Box):
    def __init__(self,
                 config: GajimPluginConfig,
                 audio_file: Path,
                 ) -> None:

        Gtk.Box.__init__(self, orientation=Gtk.Orientation.HORIZONTAL, spacing=6)

        self._config = config
        self._model = None
        self._audio_file = audio_file
        self._text = ''

        self._transcribe_button = Gtk.Button.new_from_icon_name("lucide-captions-symbolic")
        self._transcribe_button.set_tooltip_text(_('Transcribe voice message'))

        self._spinner = Adw.Spinner(valign=Gtk.Align.START, visible=False)

        self._transcription_label = Gtk.Label(
            label=_('Nothing transcribed yet'))
        self._transcription_label.set_max_width_chars(40)
        self._transcription_label.set_wrap(True)

        self.append(self._spinner)
        self.append(self._transcription_label)
        self._transcribe_button.connect('clicked', self._on_transcribe_clicked)
        self._result = helper.Results('')

    @property
    def button(self) -> Gtk.Button:
        return self._transcribe_button

    def _on_transcribe_clicked(self, _button: Gtk.Button) -> None:
        log.debug('config._instance = %s', self._config._instance)
        self._model = self._config._instance
        if self._model is None:
            return

        if self._model.is_loaded:
            text = _('Transcribing…')
        elif self._model.will_download:
            text = _('Downloading ') + self._model.model_id
        else:
            text = _('Loading model…')
        self._transcription_label.set_text(text)
        self._spinner.set_visible(True)
        self._task = helper.BackgroundTask(
            self._model.load, self._on_load_done)
        self._task.start()

    def _on_load_done(self):
        self._transcription_label.set_text(_('Transcribing…'))
        self._task = helper.BackgroundTask(
            lambda: self._model.recognize(
                self._result, helper.load_audio(self._audio_file)),
            self._show_result,
        )
        self._task.start()

    def _show_result(self):
        assert self._model is not  None
        self._text = self._result.text
        if self._text.strip() != '':
            self._transcription_label.set_text(self._text.strip())
        else:
            self._transcription_label.set_text(_('_Have not heard any word!_'))
        self._spinner.set_visible(False)