"""
Billing API Views
Stub endpoints for billing pages
"""
from rest_framework import viewsets, status
from rest_framework.decorators import action
from rest_framework.response import Response
from rest_framework.permissions import IsAuthenticated


class BillingViewSet(viewsets.ViewSet):
    """Billing endpoints"""
    permission_classes = [IsAuthenticated]
    
    @action(detail=False, methods=['get'], url_path='account_balance')
    def account_balance(self, request):
        """Get user's credit balance"""
        return Response({
            'credits': 0,
            'subscription_plan': 'Free',
            'monthly_credits_included': 0,
            'bonus_credits': 0
        })
    
    @action(detail=False, methods=['get'])
    def transactions(self, request):
        """List credit transactions"""
        return Response({
            'results': [],
            'count': 0
        })
    
    @action(detail=False, methods=['get'])
    def usage(self, request):
        """List credit usage"""
        return Response({
            'results': [],
            'count': 0
        })


class AdminBillingViewSet(viewsets.ViewSet):
    """Admin billing endpoints"""
    permission_classes = [IsAuthenticated]
    
    @action(detail=False, methods=['get'])
    def stats(self, request):
        """System billing stats"""
        return Response({
            'total_users': 0,
            'active_users': 0,
            'total_credits_issued': 0,
            'total_credits_used': 0
        })