///////////////////////////////////////////////////////////////////////////////
//
//  Copyright (c) Microsoft Corporation.  All rights reserved.
//

using System;
using System.Collections;
using System.Threading;
using Microsoft.Singularity.Directory;
using Microsoft.Singularity.Channels;
using Microsoft.Singularity.FileSystem;
using Microsoft.Singularity.V1.Services;

using Microsoft.SingSharp.Reflection;
using Microsoft.Singularity.Applications;
using Microsoft.Singularity.Io;
using Microsoft.Singularity.Configuration;
[assembly: Transform(typeof(ApplicationResourceTransform))]

namespace Microsoft.Singularity.Applications
{
    [ConsoleCategory(HelpMessage="Mount  CD device", DefaultAction=true)]
    internal class Parameters 
    {
        [InputEndpoint("data")]
        public readonly TRef<UnicodePipeContract.Exp:READY> Stdin;

        [OutputEndpoint("data")]
        public readonly TRef<UnicodePipeContract.Imp:READY> Stdout;

        [Endpoint]
        public readonly TRef<DirectoryServiceContract.Imp:Start> nsRef;

        [StringParameter( "devName", Mandatory=true, Position=0, HelpMessage="Name of device.")]
        internal string device;

        [StringParameter( "location", Mandatory=true, Position=1, HelpMessage="Mount Location.")]
        internal string location;

        [BoolParameter( "s", Default=false, HelpMessage="Silent.")]
        internal bool silent;
        

        reflective internal Parameters();

        internal int AppMain() {
            return CdMount.AppMain(this);
        }
    }

    public class CdMount
    { 
        public static void WriteLineWrapper(string format, params object[] args) {
            if (!silent) {
                Console.WriteLine(format, args);
            }
        }
        
        public static void WriteWrapper(string format, params object[] args) {
            if (!silent) {
                Console.Write(format, args);
            }
        }
        
        
        public static bool silent = false;
        public const string ControlLocation = "/CdCtrl";
        
        internal static int AppMain(Parameters! config)
        {
            String! rawDevice; 
            String! location; 
            
            DirectoryServiceContract.Imp ds = (config.nsRef).Acquire(); 
            if (ds == null) { 
                throw new Exception("Unable to acquire handle to the Directory Service root"); 
            } 
            ds.RecvSuccess();
            
            rawDevice = config.device; 
            location  = config.location; 
            
            WriteLineWrapper(" Mounting " + rawDevice + " at " + 
                location);
            
                        
            Iso9660ServiceControlContract.Imp! controlClient;
            Iso9660ServiceControlContract.Exp! controlServer;
            Iso9660ServiceControlContract.NewChannel(
                out controlClient, out controlServer);
            
            ErrorCode errorOut; 
            bool ok = SdsUtils.Bind(ControlLocation, ds, controlServer, out errorOut);
            if (!ok) {
                    Console.WriteLine("Bind failed on " + ControlLocation);
                    Console.WriteLine("Is iso9660 complied and running?");
                    delete controlClient; 
                    delete ds; 
                    return 0; 
            } 
            controlClient.RecvSuccess();
           
            WriteLineWrapper("Initializing...");
            controlClient.SendInitialize(Bitter.FromString2(rawDevice));
            switch receive {
                case controlClient.NackInitialize():
                    Console.WriteLine("Initialize failed. :(");
                    delete ds; 
                    delete controlClient; 
                    return -1;
                    break;
                case controlClient.AckInitialize():
                    WriteWrapper("Initialize succeeded;");
                    break;
                case controlClient.ChannelClosed():
                    throw new Exception("controlClient channel closed");
            }
            
            WriteLineWrapper(" sending mount...");
            controlClient.SendMount(Bitter.FromString2(location));
            switch receive {
                case controlClient.NackMount():
                    Console.WriteLine("Mount failed. :(");
                    break;
                case controlClient.AckMount():
                    Console.WriteLine("Mount succeeded.");
                    break;
                case controlClient.ChannelClosed():
                    throw new Exception("controlClient channel closed");
            }
            
            delete ds; 
            delete controlClient; 
            
            return 0;
        }
	}
}