# -*- coding: utf-8 -*-
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.utils.decorators import method_decorator
from django.views import generic

from dav_events.models import Event
from dav_events.roles import has_role


class HomeView(generic.TemplateView):
    template_name = 'dav_event_office/home.html'


class OfficePermissionMixin(object):
    def enforce_permission(self, request):
        user = request.user
        if user.is_superuser:
            return None
        elif has_role(user, 'manager_super'):
            return None
        elif has_role(user, 'event_office'):
            return None
        raise PermissionDenied('event_office')


class EventListView(OfficePermissionMixin, generic.ListView):
    model = Event
    template_name = 'dav_event_office/event_list.html'

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        self.enforce_permission(request)
        return super(EventListView, self).dispatch(request, *args, **kwargs)


class EventDetailView(OfficePermissionMixin, generic.DetailView):
    model = Event
    template_name = 'dav_event_office/event_detail.html'

    @method_decorator(login_required)
    def dispatch(self, request, *args, **kwargs):
        self.enforce_permission(request)
        return super(EventDetailView, self).dispatch(request, *args, **kwargs)