# 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/>.

from gi.repository import Gtk

from nbxmpp.protocol import InvalidJid
from nbxmpp.protocol import validate_resourcepart

from .util import get_builder


class NickChooser(Gtk.MenuButton):
    def __init__(self):
        Gtk.MenuButton.__init__(self)
        self._ui = get_builder('groupchat_nick_chooser.ui')
        self.add(self._ui.button_content)
        self.set_receives_default(False)
        self.set_popover(self._ui.popover)

        self._ui.popover.set_default_widget(
            self._ui.apply_button)
        self.connect('toggled', self._on_nickname_button_toggled)
        self._ui.entry.connect('changed', self._on_nickname_changed)
        self._ui.apply_button.connect('clicked', self._on_apply_nickname)

    def get_text(self):
        return self._ui.entry.get_text()

    def set_text(self, text):
        self._ui.entry.set_text(text)
        self._ui.label.set_text(text)

    def _on_nickname_button_toggled(self, _widget):
        self._ui.entry.grab_focus()

    def _on_nickname_changed(self, entry):
        try:
            validate_resourcepart(entry.get_text())
            self._ui.apply_button.set_sensitive(True)
        except InvalidJid:
            self._ui.apply_button.set_sensitive(False)

    def _on_apply_nickname(self, _button):
        nickname = self._ui.entry.get_text()
        self._ui.popover.popdown()
        self._ui.label.set_text(nickname)