from django.views.generic import ListView
from django.utils.translation import gettext as _, gettext_lazy
from django.db.models import Count
from django.http import HttpResponseForbidden

from judge.utils.diggpaginator import DiggPaginator
from judge.models import VolunteerProblemVote, Problem

class InternalProblem(ListView):
    model = Problem
    title = _('Internal problems')
    template_name = 'internal/base.html'
    paginate_by = 100
    context_object_name = 'problems'

    def get_paginator(self, queryset, per_page, orphans=0,
                      allow_empty_first_page=True, **kwargs):
        return DiggPaginator(queryset, per_page, body=6, padding=2, orphans=orphans,
                                  allow_empty_first_page=allow_empty_first_page, **kwargs)
    
    def get_queryset(self):
        queryset = Problem.objects.annotate(vote_count=Count('volunteer_user_votes')) \
            .filter(vote_count__gte=1).order_by('-vote_count')
        return queryset

    def get_context_data(self, **kwargs):
        context = super(InternalProblem, self).get_context_data(**kwargs)
        context['page_type'] = 'problem'
        context['title'] = self.title
        return context

    def get(self, request, *args, **kwargs):
        if request.user.is_superuser:
            return super(InternalProblem, self).get(request, *args, **kwargs)
        return HttpResponseForbidden()