///////////////////////////////////////////////////////////////////////////////
//
//  Microsoft Research Singularity
//
//  Copyright (c) Microsoft Corporation.  All rights reserved.
//
//  File: Service\Test\Counter\Counter.sg
//
//  Note:
//
using System;
using System.Threading;
using Microsoft.SingSharp;
using Microsoft.SingSharp.Reflection;
using Microsoft.Singularity;
using Microsoft.Singularity.Channels;
using Microsoft.Singularity.Configuration;
using Microsoft.Singularity.Directory;
using Microsoft.Singularity.Resiliency;
using Microsoft.Singularity.Security;
using Microsoft.Singularity.ServiceManager;
using Microsoft.Singularity.Services;

[assembly: Transform(typeof(ServiceResourceTransform))]
[assembly: ApplicationPublisherAttribute("singularity.microsoft.com")]
[assembly: AssertPrivilegeAttribute("$register-privilege.localhost")]

namespace Microsoft.Singularity.Services.Counter
{
    [Category("Service")]
    internal sealed class Parameters
    {
        [Endpoint]
        public readonly TRef<ManagedServiceContract.Exp:Start> serviceRef;

        [Endpoint]
        public readonly TRef<DirectoryServiceContract.Imp:Ready> directoryRef;

        [Endpoint]
        public readonly TRef<ServiceProxyContract.Imp:Start> proxyRef;

        reflective private Parameters();
    }

    internal sealed class CounterService : WorkerServiceExec
    {
        private Counter!    counter;

        internal CounterService([Claims]DirectoryServiceContract.Imp:Ready! dep)
            : base(dep, CounterContract.ModuleName)
        {
            counter = new Counter();
        }

        protected override bool Accept(ServiceContract.Exp:Start! ep)
        {
            CounterContract.Exp:Start newEp = ep as CounterContract.Exp:Start;
            return (newEp != null);
        }

        protected override IRunnable NewWorker([Claims]ServiceContract.Exp:Start! ep)
        {
            CounterContract.Exp:Start   newEp;
           
            newEp = ep as CounterContract.Exp:Start;
            if (newEp == null) {
                delete ep;
                return null;
            }

            return new CounterWorker(newEp, counter);
        }

        internal static int AppMain(Parameters! config)
        {
            ManagedServiceContract.Exp:Start    ep;
            DirectoryServiceContract.Imp:Ready  dep;
            IRunnable                           counter;
            IRunnable                           manageExec;
            Thread                              thread;

            if (config.serviceRef == null || config.directoryRef == null) {
                // Wrong contract type!
                return -1;
            }
            ep = config.serviceRef.Acquire();
            dep = config.directoryRef.Acquire();

            counter = new CounterService(dep);
            manageExec = new ManagementExec(ep, counter);
            thread = new Thread(new ThreadStart(manageExec.Run));
            thread.Start();
            thread.Join();
            DebugStub.Print("Counter: Quit\n");
            return 0;
        }
    }
}