from django.shortcuts import render, get_object_or_404
from polls.models import Poll
from django.shortcuts import redirect

# Create your views here.
from django.http import HttpResponse
from django.contrib.auth.decorators import login_required

#@login_required(redirect_field_name='my_redirect_field')
@login_required
def index(request):
#    if not request.user.is_authenticated():
#        return redirect('/accounts/login/?next=%s' % request.path)
#    username = request.POST['username']
#    password = request.POST['password']
#    user = authenticate(username=username, password=password)
#    if user is not None:
#        if user.is_active:
#            login(request, user)
            # Redirect to a success page.
#        else:
            # Return a 'disabled account' error message
#    else:
        # Return an 'invalid login' error message.
#    return HttpResponse("Hello, world. You're at the poll index.")
    latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5]
    context = {'latest_poll_list': latest_poll_list}
    return render(request, 'polls/index.html', context)

def detail(request, poll_id):
    poll = get_object_or_404(Poll, pk=poll_id)
    return render(request, 'polls/detail.html', {'poll': poll})

def results(request, poll_id):
    return HttpResponse("You're looking at the results of poll %s." % poll_id)

def vote(request, poll_id):
    #return HttpResponse("You're voting on poll %s." % poll_id)
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the poll voting form.
        return render(request, 'polls/detail.html', {
            'poll': p,
            '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=(p.id,)))