from rest_framework import viewsets, permissions
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import filters
from ..models import Admission
from .serializers import AdmissionSerializer


class AdmissionViewSet(viewsets.ModelViewSet):
    """ViewSet for admissions"""
    queryset = Admission.objects.all()
    serializer_class = AdmissionSerializer
    permission_classes = [permissions.IsAuthenticated]
    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
    filterset_fields = ['status', 'admission_type', 'ward']
    search_fields = ['patient__first_name', 'patient__last_name', 'admission_reason']
    ordering_fields = ['admission_date', 'created_at']
    ordering = ['-admission_date']
    
    def get_queryset(self):
        return Admission.objects.filter(tenant=self.request.user.tenant)
    
    def perform_create(self, serializer):
        serializer.save(tenant=self.request.user.tenant)