import logging

from django.contrib import messages
from django.contrib.messages.views import SuccessMessageMixin
from django.http import HttpResponseRedirect, Http404
from django.utils.translation import ugettext_lazy as _
from django.views.generic import FormView

from .forms import ContactUsForm

logger = logging.getLogger(__name__)


# Create your views here.
class ContactUsFormView(SuccessMessageMixin, FormView):
    next = None
    template_name = None
    form_class = ContactUsForm
    http_method_names = ('post',)
    success_message = _('Запрос был успешно отправлен')
    error_message = _('Произошла ошибка во время отправки. Проверьте заполненные поля или попробуйте позже')

    def form_valid(self, form):
        try:
            form.save()
            form.send_email(self.request)
        except Exception as e:
            self.form_invalid(form=form)
        messages.add_message(self.request, messages.SUCCESS, self.success_message, extra_tags='contact_us_form_message')
        return HttpResponseRedirect(self.next)

    def form_invalid(self, form):
        context = self.get_context_data()
        if len(form.errors) > 0:
            context['form_show_errors'] = True
            messages.add_message(self.request, messages.ERROR, self.error_message, extra_tags='contact_us_form_message')
        return HttpResponseRedirect(self.next)

    def dispatch(self, request, *args, **kwargs):
        if request.POST.get('next', None) is None:
            raise Http404()
        else:
            self.next = request.POST.get('next')
        return super().dispatch(request, *args, **kwargs)

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['next'] = self.next
        kwargs['field_css_class_base'] = 'left-menu'
        return kwargs