Files
holy-flavor-rater/backend/api/views/flavor.py
T
2026-04-27 03:36:35 +02:00

107 lines
4.1 KiB
Python

from django.db.models import Avg
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import filters, permissions, viewsets
from rest_framework.decorators import action
from rest_framework.request import Request
from rest_framework.response import Response
from api.models import Category, Flavor
from api.serializers import CategorySerializer, FlavorSerializer
from api.services.search import (
extract_category_slug,
filter_flavors_by_query,
score_relevance,
)
from api.utils.auth import current_user
class CategoryViewSet(viewsets.ReadOnlyModelViewSet):
queryset = Category.objects.all()
serializer_class = CategorySerializer
class FlavorViewSet(viewsets.ModelViewSet):
queryset = Flavor.objects.annotate(average_rating=Avg("ratings__score")).order_by(
"-average_rating"
)
serializer_class = FlavorSerializer
filter_backends = [DjangoFilterBackend, filters.SearchFilter]
filterset_fields = ["category", "category__slug"]
search_fields = ["name", "description"]
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
def get_queryset(self):
qs = (
Flavor.objects.select_related("category")
.annotate(average_rating=Avg("ratings__score"))
.order_by("-average_rating")
.distinct()
)
search_query = self.request.query_params.get("search", "")
slug, _ = extract_category_slug(search_query)
if slug:
qs = qs.filter(category__slug=slug)
return qs
@action(detail=False, methods=["get"], permission_classes=[permissions.AllowAny])
def search(self, request: Request) -> Response:
query = request.query_params.get("q", "").lower().strip()
if not query:
return Response([])
flavors = Flavor.objects.select_related("category").distinct()
flavors = filter_flavors_by_query(flavors, query)
_, remaining = extract_category_slug(query)
seen_keys: set[str] = set()
results: list[dict] = []
for f in flavors.order_by("name"):
key = f"{f.name.strip().lower()}|{f.category.slug}"
if key in seen_keys:
continue
seen_keys.add(key)
results.append(
{
"id": f.id,
"name": f.name,
"type": "flavor",
"subtitle": f.category.name,
"image_url": (
request.build_absolute_uri(f.image.url) if f.image else f.image_url
),
"slug": None,
"relevance": score_relevance(f.name, remaining),
}
)
results.sort(key=lambda x: (-x["relevance"], x["name"]))
for r in results:
del r["relevance"]
return Response(results[:15])
@action(detail=False, methods=["get"], permission_classes=[permissions.AllowAny])
def top(self, request: Request) -> Response:
queryset = self.get_queryset().filter(ratings__isnull=False)
category_slug = request.query_params.get("category")
if category_slug:
queryset = queryset.filter(category__slug=category_slug)
top_flavors = queryset.distinct()[:10]
return Response(self.get_serializer(top_flavors, many=True).data)
@action(detail=False, methods=["get"], permission_classes=[permissions.AllowAny])
def newest(self, request: Request) -> Response:
newest_flavors = Flavor.objects.select_related("category").order_by("-created_at")[:10]
return Response(self.get_serializer(newest_flavors, many=True).data)
@action(detail=False, methods=["get"], permission_classes=[permissions.IsAuthenticated])
def followed_top(self, request: Request) -> Response:
followed_users = current_user(request).following.all()
top_flavors = (
Flavor.objects.filter(ratings__user__in=followed_users)
.annotate(average_rating=Avg("ratings__score"))
.order_by("-average_rating")
.distinct()[:10]
)
return Response(self.get_serializer(top_flavors, many=True).data)