from django.shortcuts import render, get_object_or_404
from .models import Recipe, Version
from django.contrib.auth.decorators import login_required, permission_required
from django.urls import reverse
from django.http.response import HttpResponseRedirect
from django.conf import settings

@login_required
@permission_required('recipes.view_recipe')
def recipes(request):
	recipes = Recipe.objects.all()
	return render(request, 'recipes.html', context={'recipes': recipes})

@login_required
@permission_required('recipes.view_recipe')
def version(request, slug_recipe, slug_version):
	recipe = get_object_or_404(Recipe, slug=slug_recipe)
	has_multiple_versions = recipe.versions.all().count() > 1 # type: ignore
	version = get_object_or_404(Version, recipe=recipe, slug=slug_version)
	ingredients = version.ingredients.all() # type: ignore

	return render(request, 'version.html', context={'recipe': recipe, 'has_multiple_versions': has_multiple_versions, 'version': version, 'ingredients': ingredients})

@login_required
@permission_required('recipes.view_recipe')
def recipe(request, slug):
	recipe = get_object_or_404(Recipe, slug=slug)
	versions = recipe.versions.all() # type: ignore

	if (1 == versions.count()):
		if settings.ENFORCE_RECIPE_VERSION_URL:
			return HttpResponseRedirect(reverse('version', kwargs={'slug_recipe': slug, 'slug_version': versions.get().slug}))
		else:
			return version(request, slug, versions.get().slug)
	else:
		return render(request, 'recipe.html', context={'recipe': recipe, 'versions': versions})