from django.shortcuts import render, get_object_or_404, HttpResponse, HttpResponseRedirect
from call.forms import CreatureForm
from django.views import generic
from .models import Creature
from django.urls import reverse
# from io import StringIO
from PIL import Image


def index(request):
    """ Main page of call, with 2bitcharactergenerator, receives POST to save a new creature """
    if request.method == "POST":
        print ("post", request.POST)
        print ("files", request.FILES)
        form = CreatureForm(request.POST, request.FILES)
        # form = CreatureFormNo(request.POST, request.FILES)
        # formset = AuthorFormSet(request.POST, request.FILES)
        if form.is_valid():
            print ("FORM IS VALID")
            form.save()
            return HttpResponseRedirect(reverse("statement", args=(form.instance.id,)))
            # do something.
        else:
            print ("FORM NOT VALID")
    else:
        form = CreatureForm()
    return render(request, "call/index.html", {"form": form})

class Guestbook(generic.ListView):
    """ public guestbook page """
    paginate_by = 20
    model=Creature
    template_name = "call/guestbook.html"
    queryset = Creature.objects.filter(published=True)

class CreatureList(generic.ListView):
    """ public guestbook page """
    paginate_by = 20
    model=Creature
    template_name = "call/creature_list.html"
    queryset = Creature.objects.filter(published=True)

class CreatureDetail(generic.DetailView):
    """ Generates Pixelated PNG of creature """ 
    model = Creature
    template_name = "call/creature_detail.html"

def creature_frame (request, creature_id):
    """ Generates Pixelated PNG of creature """ 
    creature = get_object_or_404(Creature, pk=creature_id)
    im = Image.open(creature.image.path)
    response = HttpResponse(content_type="image/png")
    im.save(response, "PNG")
    return response