from rest_framework import mixins, viewsets
from rest_framework.decorators import action
from rest_framework.permissions import AllowAny, IsAuthenticated
from rest_framework.response import Response

from apps.core.permissions import IsStoreOwner

from .models import Review
from .serializers import ReviewSerializer, SellerReplySerializer


class ReviewViewSet(mixins.ListModelMixin, mixins.CreateModelMixin, viewsets.GenericViewSet):
    """Customer reviews — create after a delivered order, list is public per store."""

    schema_tags = ['Reviews']
    serializer_class = ReviewSerializer

    def get_permissions(self):
        if self.action == 'create':
            return [IsAuthenticated()]
        return [AllowAny()]

    def get_queryset(self):
        queryset = Review.objects.select_related('customer', 'store')
        store_uuid = self.request.query_params.get('store')
        if store_uuid:
            queryset = queryset.filter(store__uuid=store_uuid)
        return queryset


class SellerReviewViewSet(mixins.ListModelMixin, viewsets.GenericViewSet):
    """Reviews left for the authenticated seller's store, with reply support."""

    schema_tags = ['Seller · Reviews']
    permission_classes = [IsAuthenticated, IsStoreOwner]
    serializer_class = ReviewSerializer

    def get_queryset(self):
        if getattr(self, 'swagger_fake_view', False):
            return Review.objects.none()
        return Review.objects.filter(store=self.request.user.store).select_related('customer')

    @action(detail=True, methods=['post'])
    def reply(self, request, pk=None):
        review = self.get_object()
        serializer = SellerReplySerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        review.seller_reply = serializer.validated_data['seller_reply']
        review.save(update_fields=['seller_reply', 'updated_at'])
        return Response(ReviewSerializer(review).data)