"""Display fact categories."""
import logging

from django.shortcuts import get_object_or_404, render
from rest_framework.authentication import BasicAuthentication
from rest_framework.decorators import api_view, authentication_classes, permission_classes
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response

from facts.models import FactCategory
from facts.serializers import FactSerializer

log = logging.getLogger(__name__)


@api_view(['GET'])
@authentication_classes((BasicAuthentication, ))
@permission_classes((IsAuthenticated, ))
def rpc_get_facts(request, category):
    """Get all the facts in a category."""
    if request.method != 'GET':
        return Response({'detail': "Supported method: GET."}, status=405)

    try:
        fact_category = FactCategory.objects.get(name=category)
    except FactCategory.DoesNotExist:
        return Response({'detail': f"Item set category '{category}' not found."}, status=404)

    return Response(FactSerializer(fact_category.fact_set.all(), many=True).data)


@api_view(['GET'])
@authentication_classes((BasicAuthentication, ))
@permission_classes((IsAuthenticated, ))
def rpc_get_random_fact(request, category):
    """Get all the facts in a category."""
    if request.method != 'GET':
        return Response({'detail': "Supported method: GET."}, status=405)

    try:
        fact_category = FactCategory.objects.get(name=category)
    except FactCategory.DoesNotExist:
        return Response({'detail': f"Item set category '{category}' not found."}, status=404)

    return Response(FactSerializer(fact_category.random_fact()).data)


def index(request):
    """Display a simple list of the fact categories, for the moment."""
    factcategories = FactCategory.objects.all()

    return render(request, 'facts/index.html', {'factcategories': factcategories})


def factcategory_detail(request, factcategory_name):
    """Display info, and a random choice, for the fact category."""
    factcategory = get_object_or_404(FactCategory, name=factcategory_name)

    facts = []
    if factcategory.show_all_entries:
        facts = [x.fact for x in factcategory.fact_set.all()]

    return render(request, 'facts/factcategory_detail.html', {'factcategory': factcategory, 'facts': facts})