#custom views
from city.models import City
from country.models import Country
from django.conf import settings
from django.contrib.auth.decorators import login_required
from django.core.context_processors import csrf
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render_to_response, render
from django.views.generic import DeleteView, FormView, ListView, UpdateView
from forms import ServiceDeleteForm, ServiceForm
from functions.custom_views import delete_object, objects_list
# -*- coding: utf-8 -*-
#models and forms
from models import Service

from .forms import LinkedServiceForm
from .models import LinkedService


def service_all(request):
    """
    return list of all services with pagination
    """
    return objects_list(request, Service, 'service_all.html')


def service_delete(request, url):
    return delete_object(request, Service, ServiceDeleteForm, url, '/admin/service/all')


@login_required
def service_change(request, url):
    service = get_object_or_404(Service, url=url)

    # initial data
    data = {
        'price': service.price,
        'currency': service.currency,
        'template': service.template,
        'type': service.type,
    }
    #countries sorted by this service
    #services_in_countries = Country.objects.filter(services=getattr(Country.services, str(service_id)))

    #data['europa'] = services_in_countries
    #data['asia'] = services_in_countries
    #data['africa'] = services_in_countries
    #data['america'] = services_in_countries
    #hidden field

    data['url'] = service.url

    #data from translated fields
    for code, name in settings.LANGUAGES:
        obj = Service._meta.translations_model.objects.get(language_code = code, master__id=service.pk) #access to translated fields
        data['name_%s'%code] = obj.name
        data['description_%s'%code] = obj.description
        data['main_title_%s'%code] = obj.main_title
        data['advantage_%s'%code] = obj.advantage
        data['title_%s'%code] = obj.title
        data['keywords_%s'%code] = obj.keywords
        data['descriptions_%s'%code] = obj.descriptions


    form = ServiceForm(request.POST or None, initial=data, instance=service)
    if request.POST:
        #form.fields['city'].choices = [(item.id, item.name) for item in City.objects.all()]
        if form.is_valid():
            form.save()
            return HttpResponseRedirect('/admin/service/all')

    args = {}
    args['form'] = form
    args['languages'] = settings.LANGUAGES
    return render(request, 'service_add.html', args)


@login_required
def service_add(request):
    if request.POST:
        form = ServiceForm(request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect('/admin/service/all')
    else:
        form = ServiceForm()


    args = {}
    args.update(csrf(request))

    args['form'] = form
    args['languages'] = settings.LANGUAGES

    return render_to_response('service_add.html', args)
"""
def get_country(request):
    if request.GET:
        #country_region = request.GET['region']
        #countries = Country.objects.filter(region=country_region)
        return render_to_response('checkbox_option.html', {'options': countries})
    else:
        return HttpResponse('error')
"""

def get_city(request):
    if request.GET:
        country_id = request.GET['id']
        cities = City.objects.filter(country=country_id)
        return render_to_response('checkbox_option.html', {'options': cities})
    else:
        return HttpResponse('error')


class LinkedServiceUpdateView(UpdateView):
    form_class = LinkedServiceForm
    model = LinkedService
    template_name = "c_admin/service/linked_service.html"
    success_url = "/admin/service/control/all/"

    def get_object(self, queryset=None):
        url = self.kwargs['url']
        service = get_object_or_404(Service, url=url)
        obj = LinkedService.objects.get(service=service)
        return obj

    def get_initial(self):
        types = {0:[], 1:['expo'], 2:['conference'], 3:['expo', 'conference']}
        initial = {
            'expositions': ",".join("%s:%s"%(item.id, item.name) for item in self.object.expositions.all()),
            'conferences': ",".join("%s:%s"%(item.id, item.name) for item in self.object.conferences.all()),
            'exclude_expositions': ",".join("%s:%s"%(item.id, item.name) for item in self.object.exclude_expositions.all()),
            'exclude_conferences': ",".join("%s:%s"%(item.id, item.name) for item in self.object.exclude_conferences.all()),
            'type': types[self.object.service.type.mask]
        }
        return initial

    def get_success_url(self):
        return self.success_url

    def form_valid(self, form):
        obj = form.save()
        obj.countries = form.cleaned_data['countries']

        # obj.expositions_diff = set(obj.expositions.all().values_list('pk', flat=True)).difference(set(form.cleaned_data['expositions'].values_list('pk', flat=True)))
        obj.expositions = form.cleaned_data['expositions']

        # obj.conferences_diff = set(obj.conferences.all().values_list('pk', flat=True)).difference(set(form.cleaned_data['conferences'].values_list('pk', flat=True)))
        obj.conferences = form.cleaned_data['conferences']

        # obj.exclude_expositions_diff = set(obj.exclude_expositions.all().values_list('pk', flat=True)).difference(set(form.cleaned_data['exclude_expositions'].values_list('pk', flat=True)))
        obj.exclude_expositions = form.cleaned_data['exclude_expositions']

        # obj.exclude_conferences_diff = set(obj.exclude_conferences.all().values_list('pk', flat=True)).difference(set(form.cleaned_data['exclude_conferences'].values_list('pk', flat=True)))
        obj.exclude_conferences = form.cleaned_data['exclude_conferences']
        obj.save()
        obj.update_all_flags()
        return HttpResponseRedirect(self.get_success_url())


class LinkedServiceList(ListView):
    model = LinkedService
    template_name = 'c_admin/service/linked_service_list.html'


class LinkedServiceDeleteView(DeleteView):
    model = LinkedService
    template_name = 'c_admin/service/linked_service_confirm_delete.html'
    success_url = '/admin/service/test/all'
    slug_url_kwarg = 'url'

    def get_object(self, queryset=None):
        url = self.kwargs['url']
        service = get_object_or_404(Service, url=url)
        obj = LinkedService.objects.get(service=service)
        return obj