import json
from django.views.generic import DetailView
from django.http import HttpResponse
from django.utils import translation
from haystack.query import SearchQuerySet
from models import City
from settings.views import get_by_lang


class CityView(DetailView):
    """
    this view is not used yet
    """
    model = City
    slug_field = 'url'
    template_name = 'client/city/city.html'


def get_city(request):
    """
    returns filtered cities in current language in json format
    """
    if request.is_ajax():
        country = request.GET.get('country')
        term = request.GET.get('term', '').capitalize()
        lang = translation.get_language()
        if country:
            if not term:
                qs = City.objects.language().filter(country=country).order_by('translations__name').distinct()[:100]
            else:
                qs = City.objects.language().filter(country=country, translations__name__contains=term).distinct()
            result = [{'id': city.id, 'label': city.name} for city in qs]
        else:
            if not term:
                qs = SearchQuerySet().models(City).all().order_by('name_%s'%lang)[:30]
            else:
                qs = SearchQuerySet().models(City).autocomplete(content_auto=term).order_by('name_%s'%lang)[:30]
            result = [{'id': city.pk, 'label': get_by_lang(city, 'name', lang)} for city in qs]

        return HttpResponse(json.dumps(result, indent=4), content_type='application/json')
    else:
        return HttpResponse('not ajax')