"""passbook Invitation administration"""
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.mixins import \
    PermissionRequiredMixin as DjangoPermissionRequiredMixin
from django.contrib.messages.views import SuccessMessageMixin
from django.http import HttpResponseRedirect
from django.urls import reverse_lazy
from django.utils.translation import ugettext as _
from django.views.generic import DeleteView, ListView
from guardian.mixins import PermissionListMixin, PermissionRequiredMixin

from passbook.core.forms.invitations import InvitationForm
from passbook.core.models import Invitation
from passbook.core.signals import invitation_created
from passbook.lib.views import CreateAssignPermView


class InvitationListView(LoginRequiredMixin, PermissionListMixin, ListView):
    """Show list of all invitations"""

    model = Invitation
    permission_required = 'passbook_core.view_invitation'
    template_name = 'administration/invitation/list.html'


class InvitationCreateView(SuccessMessageMixin, LoginRequiredMixin,
                           DjangoPermissionRequiredMixin, CreateAssignPermView):
    """Create new Invitation"""

    model = Invitation
    form_class = InvitationForm
    permission_required = 'passbook_core.add_invitation'

    template_name = 'generic/create.html'
    success_url = reverse_lazy('passbook_admin:invitations')
    success_message = _('Successfully created Invitation')

    def get_context_data(self, **kwargs):
        kwargs['type'] = 'Invitation'
        return super().get_context_data(**kwargs)

    def form_valid(self, form):
        obj = form.save(commit=False)
        obj.created_by = self.request.user
        obj.save()
        invitation_created.send(
            sender=self,
            request=self.request,
            invitation=obj)
        return HttpResponseRedirect(self.success_url)


class InvitationDeleteView(SuccessMessageMixin, LoginRequiredMixin,
                           PermissionRequiredMixin, DeleteView):
    """Delete invitation"""

    model = Invitation
    permission_required = 'passbook_core.delete_invitation'

    template_name = 'generic/delete.html'
    success_url = reverse_lazy('passbook_admin:invitations')
    success_message = _('Successfully deleted Invitation')

    def delete(self, request, *args, **kwargs):
        messages.success(self.request, self.success_message)
        return super().delete(request, *args, **kwargs)