双12商业流程服务购买

class OrderProcessor:
    def __init__(self, inventory_manager, payment_gateway):
        self.inventory_manager = inventory_manager
        self.payment_gateway = payment_gateway

    def process_order(self, order_details):
        try:
            # 检查库存
            if not self.inventory_manager.check_stock(order_details['product_id'], order_details['quantity']):
                return "Out of stock"
            
            # 处理支付
            if not self.payment_gateway.process_payment(order_details['payment_info']):
                return "Payment failed"
            
            # 更新库存
            self.inventory_manager.update_stock(order_details['product_id'], -order_details['quantity'])
            
            return "Order processed successfully"
        except Exception as e:
            return f"Error processing order: {str(e)}"

# 示例使用
inventory_manager = InventoryManager()
payment_gateway = PaymentGateway()
processor = OrderProcessor(inventory_manager, payment_gateway)

order_details = {
    'product_id': 123,
    'quantity': 2,
    'payment_info': {'card_number': '1234-5678-9012-3456', 'expiry': '12/24', 'cvv': '123'}
}

result = processor.process_order(order_details)
print(result)