//  Copyright (C) Microsoft Corporation.  All Rights Reserved.

using System;
using System.Configuration;
using System.ServiceModel;
using System.Security.Permissions;

namespace Microsoft.ServiceModel.Samples
{
    // Define a service contract.
   
   [ServiceContract]
    public interface ICalculator
    {
        [OperationContract]
        double Add(double n1, double n2);
    }

    // Service class which implements the service contract.
    // Added code to write output to the console window
    public class CalculatorService : ICalculator
    {
        [PrincipalPermission(SecurityAction.Demand, Role = "Managers")]
        public double Add(double n1, double n2)
        {
            double result = n1 + n2;
            Console.WriteLine("Received Add({0},{1})", n1, n2);
            Console.WriteLine("Return: {0}", result);
            return result;
        }

        // Host the service within this EXE console application.
        public static void Main()
        {
            // Create a ServiceHost for the CalculatorService type.
            using (ServiceHost serviceHost = new 
                ServiceHost(typeof(CalculatorService)))
            {
                // Open the ServiceHost to create listeners and start
                // listening for messages.
                serviceHost.Open();

                // The service can now be accessed.
                Console.WriteLine("The service is ready.");
                Console.WriteLine("Press <ENTER> to quit.");
                Console.WriteLine();
                Console.ReadLine();
            }
        }
    }
}