# -*- coding: utf-8 -*-
import json

from django.shortcuts import  render_to_response, get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse
from django.core.context_processors import csrf
from django.conf import settings
from django.contrib.auth.decorators import login_required
from django.contrib.contenttypes.models import ContentType
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import get_language

from exposition.admin import get_by_lang
from forms import CityForm, CityDeleteForm, CityFilterForm
from models import City
from file.models import FileModel
from file.forms import FileModelForm
from haystack.query import SearchQuerySet
from functions.custom_views import objects_list, add_object_with_file, delete_object
from functions.admin_views import AdminListView
from functions.http import JsonResponse


def city_add(request):
    """
    Return form of city and post it on the server.
    If form is posted redirect on the page of all cities.
    """
    return add_object_with_file(request, CityForm, 'city_add.html', '/admin/city/all')


def city_delete(request, url):
    return delete_object(request, City, CityDeleteForm, url, '/admin/city/all/')


@login_required
def city_change(request, url):
    """
    Return form and fill it with existing City object data.

    If form is posted redirect on the page of all cities.
    """
    try:
    #check if city_id exists else redirect to the list of cities
        c = City.objects.get(url=url)
        city_id = getattr(c, 'id')
        file_form = FileModelForm(initial={'model': 'city.City'})
    except:
        return HttpResponseRedirect('/admin/city/all')

    if request.POST:
        form = CityForm(request.POST, request.FILES)
        if form.is_valid():
            form.save(city_id)
            return HttpResponseRedirect('/admin/city/all')
    else:
        #fill form with data from database
        data = {'population' : c.population, 'phone_code' : c.phone_code,
                'city_id' : city_id, 'inflect':c.inflect, 'logo': c.logo}

        if c.country:
            data['country'] = c.country.id

        if c.code_IATA:
            data['code_IATA'] = c.code_IATA.id

            #data from translated fields
        for code, name in settings.LANGUAGES:
            obj = City._meta.translations_model.objects.get(language_code = code,master__id=city_id) #access to translated fields
            data['name_%s' % code] = obj.name
            data['region_%s' % code] = obj.region
            data['description_%s' % code] = obj.description
            data['famous_places_%s' % code] = obj.famous_places
            data['shoping_%s' % code] = obj.shoping
            data['transport_%s' % code] = obj.transport
            data['title_%s' % code] = obj.title
            data['keywords_%s' % code] = obj.keywords
            data['descriptions_%s' % code] = obj.descriptions
        #fill form
        form = CityForm(initial=data)


    args = {}
    args.update(csrf(request))
    args['languages'] = settings.LANGUAGES
    args['form'] = form
    args['file_form'] = file_form

    #get list of files which connected with specific model object
    args['files'] = FileModel.objects.filter(content_type=ContentType.objects.get_for_model(c),
                                             object_id=getattr(c, 'id'))
    args['obj_id'] = city_id

    return render_to_response('city_add.html', args)


def search_city(request):
    term = request.GET.get('term')
    country = request.GET.get('country')
    if not term:
        qs = City.objects.language().filter(country=country).distinct()[:200]
    else:
        qs = City.objects.language().filter(country=country, translations__name__contains=term).distinct()
    result = [{'id': city.id, 'label': city.name} for city in qs]
    return JsonResponse(json.dumps(result), content_type='application/json', safe=False)


class CityListView(AdminListView):
    template_name = 'c_admin/city/city_list.html'
    form_class = CityFilterForm
    model = City