// 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 System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Host.Mef;
using Roslyn.LanguageServer.Protocol;
 
namespace Microsoft.CodeAnalysis.LanguageServer.Handler;
 
[ExportCSharpVisualBasicStatelessLspService(typeof(WorkDoneProgressCancelledHandler)), Shared]
[Method(Methods.WindowWorkDoneProgressCancelName)]
[method: ImportingConstructor]
[method: Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
internal sealed class WorkDoneProgressCancelledHandler() : ILspServiceNotificationHandler<WorkDoneProgressCancelParams>
{
    public bool MutatesSolutionState => false;
 
    public bool RequiresLSPSolution => false;
 
    public Task HandleNotificationAsync(WorkDoneProgressCancelParams request, RequestContext requestContext, CancellationToken cancellationToken)
    {
        var manager = requestContext.GetRequiredLspService<WorkDoneProgressManager>();
        // We always create guid tokens, so use the string sumtype directly.
        manager.CancelWorkDoneProgress(request.Token.Second);
        return Task.CompletedTask;
    }
}