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

from haystack.query import SearchQuerySet

from functions.custom_views import ContextMixin
from functions.custom_views import ListView
from functions.http import JsonResponse

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'
    _ajax_results_template_name = 'events/filter_listview_ajax.html'
    _ajax_form_template_name = 'includes/events/filter_form.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()
        # import pdb; pdb.set_trace()
        return qs

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

        # ajax
        if request.is_ajax():
            ctx = RequestContext(request, self.get_context_data(object_list=self.get_queryset()))
            data = {
                'success': True,
                'results': render_to_string(self._ajax_results_template_name, ctx),
                'form': render_to_string(self._ajax_form_template_name, ctx),
                }
            return JsonResponse(data)
        # usual get
        return super(FilterListView, self).get(request, *args, **kwargs)

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

    def get_context_data(self, **kwargs):
        context = super(FilterListView, self).get_context_data(**kwargs)

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

        return context