from django.http import HttpResponseRedirect, HttpResponse
from django.shortcuts import get_object_or_404, render
from django.urls import reverse
from django.views import generic

from .models import Choice, Question

class ReactTest(generic.View):
    def get(self, request):
        data = [
          {"id": 1, "author": "Pete Hunt", "text": "This is one comment"},
          {"id": 2, "author": "Jordan Walke", "text": "This is *another* comment"}
        ]
        return HttpResponse(json.dumps(data))

class IndexPageView(generic.TemplateView):
    def get_context_data(self, request=None, **kwargs):
        return context

    def get(self, request):
        context = self.get_context_data(request)
        return TemplateResponse(request, template="polls/test.html", context=context)

class IndexView(generic.ListView):
    template_name = 'polls/index.html'
    context_object_name = 'latest_question_list'

    def get_queryset(self):
        """Return the last five published questions."""
        return Question.objects.order_by('-pub_date')[:5]


class DetailView(generic.DetailView):
    model = Question
    template_name = 'polls/detail.html'


class ResultsView(generic.DetailView):
    model = Question
    template_name = 'polls/results.html'

def vote(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    try:
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the question voting form.
        return render(request, 'polls/detail.html', {
            'question': question,
            'error_message': "You didn't select a choice.",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        # Always return an HttpResponseRedirect after successfully dealing
        # with POST data. This prevents data from being posted twice if a
        # user hits the Back button.
        return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))
