# -*- coding: utf-8 -*-
from django.views.generic.edit import FormMixin
from django.conf import settings

from haystack.query import SearchQuerySet

from functions.custom_views import ContextMixin
from functions.custom_views import ListView
from exposition.models import Exposition
from conference.models import Conference

from .forms import FilterForm


class FilterListView(ContextMixin, FormMixin, ListView):
    initial_ctx = {'filtering': True}
    form_class = FilterForm
    paginate_by = settings.CLIENT_PAGINATION
    _template_name = 'events/filter_listview.html'
    _template_name_ajax = 'events/filter_listview_ajax.html'

    def get_form_kwargs(self):
        kwargs = super(FilterListView, self).get_form_kwargs()
        kwargs.update({'data': self.request.GET})
        return kwargs

    def get_queryset(self):
        if self.form.is_valid():
            qs = self.form.filter()
        else:
            qs = self.form.default_filter()
        self.form.recalculate_choices()
        return qs

    def get(self, request, *args, **kwargs):
        self.form = self.get_form(self.get_form_class())
        self.extra_ctx['form'] = self.form

        # get params for paginator
        get = request.GET.copy()
        if 'page' in get:
            del get[key]
        self.extra_ctx['GETparams'] = get.urlencode()

        # ajax or get
        self.template_name = self._template_name_ajax if request.is_ajax() else self._template_name
        return super(FilterListView, self).get(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        return self.get(request, *args, **kwargs)