from rest_framework import viewsets, permissions
from rest_framework.decorators import action
from rest_framework.response import Response
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import filters
from ..models import PatientProfile
from .serializers import PatientProfileSerializer


class PatientProfileViewSet(viewsets.ModelViewSet):
    """ViewSet for patient profiles"""
    queryset = PatientProfile.objects.all()
    serializer_class = PatientProfileSerializer
    permission_classes = [permissions.IsAuthenticated]
    filter_backends = [DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter]
    filterset_fields = ['gender', 'blood_type', 'is_active']
    search_fields = ['first_name', 'last_name', 'mrn', 'phone', 'email']
    ordering_fields = ['last_name', 'first_name', 'date_of_birth', 'created_at']
    ordering = ['last_name', 'first_name']
    
    def get_queryset(self):
        """Filter by tenant"""
        return PatientProfile.objects.filter(tenant=self.request.user.tenant)
    
    def perform_create(self, serializer):
        """Set tenant when creating"""
        serializer.save(tenant=self.request.user.tenant)
    
    @action(detail=True, methods=['get'])
    def emergency_contacts(self, request, pk=None):
        """Get emergency contacts for a patient"""
        patient = self.get_object()
        contacts = patient.emergency_contacts.all()
        # Would need EmergencyContactSerializer
        return Response({'contacts': []})
    
    @action(detail=True, methods=['get'])
    def insurance_info(self, request, pk=None):
        """Get insurance information for a patient"""
        patient = self.get_object()
        insurance = patient.insurance_info.all()
        # Would need InsuranceInfoSerializer
        return Response({'insurance': []})