"""
View which can render and send email from a contact form.

"""

from django import http
from django.urls import reverse_lazy
from django.views.generic.edit import FormView

from .forms import ContactForm, StringKeyedDict


class ContactFormView(FormView):
    form_class = ContactForm
    recipient_list = None
    success_url = reverse_lazy("contact_form_sent")
    template_name = "contact/contact_form.html"

    def get_context_data(self, **kwargs):
        '''
        Adds breadcrumb path to every view
        '''
        # Call the base implementation first to get a context

        context = super().get_context_data(**kwargs)
                # special case for pages:
        context['breadcrumbs'] = ('contact',)
        context['crumb_url'] = None
        return context

    def form_valid(self, form) -> http.HttpResponse:
        form.save()
        return super().form_valid(form)

    def get_form_kwargs(self) -> StringKeyedDict:
        # ContactForm instances require instantiation with an
        # HttpRequest.
        kwargs = super().get_form_kwargs()
        kwargs.update({"request": self.request})

        # We may also have been given a recipient list when
        # instantiated.
        if self.recipient_list is not None:
            kwargs.update({"recipient_list": self.recipient_list})
        return kwargs