// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Composition;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.CodeAnalysis.LanguageServer;
 
[ExportEventListener(
    WellKnownEventListeners.Workspace,
    WorkspaceKind.Host,
    WorkspaceKind.MiscellaneousFiles,
    WorkspaceKind.MetadataAsSource,
    WorkspaceKind.Interactive,
    WorkspaceKind.SemanticSearch), Shared]
internal sealed class LspWorkspaceRegistrationEventListener : IEventListener<object>, IEventListenerStoppable
{
    private readonly LspWorkspaceRegistrationService _lspWorkspaceRegistrationService;
 
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public LspWorkspaceRegistrationEventListener(LspWorkspaceRegistrationService lspWorkspaceRegistrationService)
    {
        _lspWorkspaceRegistrationService = lspWorkspaceRegistrationService;
    }
 
    public void StartListening(Workspace workspace, object _)
    {
        _lspWorkspaceRegistrationService.Register(workspace);
    }
 
    public void StopListening(Workspace workspace)
    {
        _lspWorkspaceRegistrationService.Deregister(workspace);
    }
}