from collections import namedtuple
import gettext, locale, os


__all__ = ('_', 'ALL_ROOMS', 'CONFIRMATIONS', 'DEFAULT_ROOM_NAMES', 'ROOMS', 
    'get_translations', 'ngettext', 'room_with_article', 'room_with_preposition')


def get_translations(file, domain='messages'):
    'Install translations'
    language, encoding = locale.getlocale()
    locale.setlocale(locale.LC_ALL, (language, encoding))
    translation = gettext.translation(domain, 
        languages=[language], fallback=True,
        localedir=os.path.join(os.path.dirname(file), 'locale'))
    return translation.gettext, translation.ngettext


_, ngettext = get_translations(__file__, 'snips_skill')

RoomName = namedtuple('RoomName', 'with_article, with_preposition')

CONFIRMATIONS = (
    _('done'),
    _('here you are'),
    _('OK'),
    _('yes'),
    _('finished'),
    _('alright'),
    _('at your service'),
)

DEFAULT_ROOM_NAMES = (
    _('here'),
    _('this room'),
)

ALL_ROOMS = (
    _('all'),
    _('everywhere'), 
    _('everything'),
)

ROOMS = {
    # Map translated room names to room names with articles and prepositions
    # for languages that use genders for room names, e.g. German
    _("bathroom").lower():     RoomName(_("the bathroom"),    _("in the bathroom")),
    _("bedroom").lower():      RoomName(_("the bedroom"),     _("in the bedroom")),
    _("dining room").lower():  RoomName(_("the dining room"), _("in the dining room")),
    _("livingroom").lower():   RoomName(_("the livingroom"),  _("in the livingroom")),
    _("kid's room").lower():   RoomName(_("the kid's room"),  _("in the kid's room")),
    _("kitchen").lower():      RoomName(_("the kitchen"),     _("in the kitchen")),
    _("office").lower():       RoomName(_("the office"),      _("in the office")),
    _("hall").lower():         RoomName(_("the hall"),        _("in the hall")),
    _("garden").lower():       RoomName(_("the garden"),      _("in the garden")),
    _("unknown room").lower(): RoomName(_("an unknown room"), _("in an unknown room")),
}

        
def room_with_article(room_name):
    'Get the spoken room name with the definite article'
    room = ROOMS.get(room_name.lower())
    return room.with_article if room \
        else _('the {room}').format(room=room_name)
    

def room_with_preposition(room_name):
    'Get the spoken room name with "in" preposition'
    room = ROOMS.get(room_name.lower())
    return room.with_preposition if room \
        else _('in the {room}').format(room=room_name)
