import io
import os

from PIL import Image
from django.conf import settings
from django.core.files.storage import default_storage
from django.http import JsonResponse, Http404, HttpResponse
from django.shortcuts import render
from django.utils.datetime_safe import datetime

from django.views.decorators.http import require_POST

from photos.models import Photo


def index(request):
    return render(request, 'index.html')


def show(request, pk):
    try:
        photo = Photo.objects.get(pk=pk)
        with open(photo.photo.path, "rb") as f:
            return HttpResponse(f.read(), content_type="image/jpeg")
    except Photo.DoesNotExist:
        raise Http404()


def photo_list(request):
    return JsonResponse([{
        'id': p.id,
        'created_at': str(p.added_on),
        'updated_at': str(p.added_on),
        'url': p.get_absolute_url(),
    } for p in Photo.objects.all().order_by('-id')], safe=False)


@require_POST
def file_upload(request):
    save_path = os.path.join(settings.MEDIA_ROOT, 'photos', "{}.jpg".format(datetime.now()))
    path = default_storage.save(save_path, request)
    photo = Photo.objects.create(photo=path)
    return JsonResponse({'picture': photo.id})