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

using System;
using Microsoft.SingSharp;
using Microsoft.Contracts;
using Microsoft.Singularity;
using Microsoft.Singularity.Channels;
using Smb.PublicChannels;

namespace Smb.ClientManager
{
    enum ClientState
    {
		// We have started the process.  The manager endpoint that requested that the
		// client be started is held at the ClientProcess.StartingManagerEndpoint tref.
		Starting,
					
		Running,
		
		Stopping,
    }
    
    // This class represents an instance of the SMB client process (smbclient.exe)
    // that is managed by this process.  All instances of smbclient.exe are started
    // by this process (smbclientmgr.exe).
    class ClientProcess
    {
		public ClientProcess(
			string! mountPath,
			SmbClientConfig config,
			Process! process)
		{
			this.Process = process;
			this.MountPath = mountPath;
			this.UncPath = Bitter.ToString2(config.UncPath);
			this.CredentialsName = Bitter.ToString2(config.CredentialsName);
			this.Tag = Bitter.ToString2(config.Tag);
			
			DebugPrefix = "SMBMGR[" + mountPath + "]: ";
		}
		
		public readonly string! DebugPrefix;

		public readonly Process! Process;
		
		// config fields
		public string! MountPath;
		public string! UncPath;
		public string! CredentialsName;
		public string! Tag;

		// status fields
		public SmbClientConnectionStatus ConnectionStatus;
		public SmbReasonDisconnected ReasonDisconnected;
		public string ServerOperatingSystem;
		public string ServerDomainName;
		public string ServerMachineName;
		public string ActiveCredentialsName;
		
		// This field is assigned (was null) when we receive NakConfigure or AckConfigure.
		public TRef<SmbClientControllerContract.Imp:Running> Controller;
		
		public ClientState State;
		
		// This field is non-null and holds a valid reference while this process is in the Starting state.
		// In all other states, this field is null.
		public TRef<SmbClientManagerContract.Exp:CreatingClient> StartingManagerEndpoint;
    }
}