from django.http import HttpResponseRedirect
from django.shortcuts import render
from django.views.generic import FormView, UpdateView
from django.urls import reverse

from idescriptor.forms import ImageForm
from idescriptor.models import Image
from django.db.models import Q


def get_image_for_descriptor():
    image = Image.objects.filter(Q(alt_text=None) | Q(title=None)).first()
    return image

def list_images(request):
    images = Image.objects.all()
    context = {"images": images}
    return render(request, 'idescriptor/list_images.html', context=context)

class ImageFormView(UpdateView):
    model = Image
    form_class = ImageForm
    template_name = "idescriptor/image-form.html"
    success_url = "."

    def form_valid(self, form):
        return super().form_valid(form)


def index(request):
    """View function for home page of site."""
    image_to_describe = get_image_for_descriptor()

    if request.method == "POST":
        action = request.POST.get("action")
        if action == "consume":
            Image.consume()

        if action == "add_image_details":
            form = ImageForm(request.POST, instance=image_to_describe)

            if form.is_valid():
                instance = form.save()
                print("Didi")
                return HttpResponseRedirect(reverse("image-update", args=(instance.id,)))
            else:
                print("Dodo")
        else:
            form = ImageForm(instance=image_to_describe)
    else:
        form = ImageForm(instance=image_to_describe)

    context = {"image_to_describe": image_to_describe, "form": form}

    return render(request, 'idescriptor/index.html', context=context)