# -*- coding: utf-8 -*-
import json
from itertools import chain

from django.views.generic import ListView, FormView, TemplateView
from django.shortcuts import get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse

from meta.views import MetadataMixin
from exposition.models import Exposition
from conference.models import Conference
from models import Service
from order_forms import TranslationForm, CatalogForm, VisitForm, RemoteForm, ParticipationForm, TicketsForm,\
    AdvertiseForm, BuildStandForm
from service.models import CallBack, Visit, Translation, Advertising, Participation, Remote, Tickets


order_forms = {'translator': TranslationForm, 'catalog': CatalogForm, 'participation': ParticipationForm,
               'remote': RemoteForm, 'tickets': TicketsForm, 'visit': VisitForm, 'buildstand': BuildStandForm}

meta = {
    'translator': 80,
    'participation': 85,
    'remote': 84,
    'tickets': 81,
    'visit': 82
}


def get_userlog_data(request):
    userlog = None
    data = {}
    if request.user.is_authenticated():
        userlog = request.user.get_user_log()
    attrs = [
        'referer1', 'referer2', 'utm_source1', 'utm_medium1',
        'utm_campaign1', 'utm_source2', 'utm_medium2', 'utm_campaign2',
    ]
    search_attrs = ['search1', 'search2', 'search3',]
    if userlog is not None:
        for attr in chain(attrs, search_attrs):
            data[attr] = getattr(userlog, attr)
    else:
        for attr in attrs:
            data[attr] = request.session.get(attr)
        for i, s in enumerate(request.session.get('search', []), start=1):
            data['search' + str(i)] = s
    return data


class ServiceView(MetadataMixin, FormView):
    success_url = '/service/thanks/'

    def dispatch(self, request, *args, **kwargs):
        service_url = self.kwargs.get('url')
        service = get_object_or_404(Service, url=service_url)
        self.service = service
        self.template_name = service.template
        service_form = order_forms.get(service_url)
        self.form_class = service_form
        return super(ServiceView, self).dispatch(request, *args, **kwargs)

    def post(self, request, *args, **kwargs):
        url = self.kwargs.get('url')
        #service_form = order_forms.get(url)
        #self.form_class = service_form
        form = self.form_class(request.POST)
        if form.is_valid():
            return self.form_valid(form)
        else:
            return self.form_invalid(form)

    def form_valid(self, form):
        userlog = get_userlog_data(self.request)
        order = form.save(commit=False, userlog=userlog)
        order.save()
        return HttpResponseRedirect(self.success_url)

    def get_context_data(self, **kwargs):
        url = self.kwargs.get('url')
        meta_id = meta.get(url)
        kwargs.update({'meta_id': meta_id})
        return super(ServiceView, self).get_context_data(**kwargs)


def advertise(request, catalog=None, event_url=None):
    if request.POST:
        response = {'success': False}
        form = AdvertiseForm(request.POST)
        if form.is_valid():
            userlog = get_userlog_data(request)
            if not catalog or not event_url:
                form.save(userlog=userlog)
            else:
                order = form.save(commit=False, userlog=userlog)
                if catalog == 'expo':
                    try:
                        expo = Exposition.objects.get(url=event_url)
                    except Exposition.DoesNotExist:
                        expo = None
                    order.exposition = expo
                elif catalog == 'conference':
                    try:
                        conf = Conference.objects.get(url=event_url)
                    except Conference.DoesNotExist:
                        conf = None
                    order.conference= conf

                order.save()
            response['success'] = True
        else:
            response['errors'] = form.errors
        return HttpResponse(json.dumps(response), content_type='application/json')
    else:
        raise HttpResponse('not ajax')



class AbstractOrderListView(ListView):
    template_name = 'c_admin/service/order_list.html'
    paginate_by = 20


class CallBackListView(AbstractOrderListView):
    model = CallBack


class VisitListView(AbstractOrderListView):
    model = Visit


class TranslationListView(AbstractOrderListView):
    model = Translation


class AdvertisingListView(AbstractOrderListView):
    model = Advertising


class ParticipationListView(AbstractOrderListView):
    model = Participation


class RemoteListView(AbstractOrderListView):
    model = Remote


class TicketsListView(AbstractOrderListView):
    model = Tickets


class Thanks(TemplateView):
    template_name = 'client/service/thank_u_page.html'