// 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.

#nullable disable

using System;
using System.Composition;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeRefactorings;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Shared.Extensions;

namespace Microsoft.CodeAnalysis.ExtractInterface;

[ExportCodeRefactoringProvider(LanguageNames.CSharp, LanguageNames.VisualBasic,
    Name = PredefinedCodeRefactoringProviderNames.ExtractInterface), Shared]
internal sealed class ExtractInterfaceCodeRefactoringProvider : CodeRefactoringProvider
{
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public ExtractInterfaceCodeRefactoringProvider()
    {
    }

    internal override CodeRefactoringKind Kind => CodeRefactoringKind.Extract;

    public sealed override async Task ComputeRefactoringsAsync(CodeRefactoringContext context)
    {
        var (document, textSpan, cancellationToken) = context;
        var service = document.GetLanguageService<AbstractExtractInterfaceService>();
        var actions = await service.GetExtractInterfaceCodeActionAsync(document, textSpan, cancellationToken).ConfigureAwait(false);
        context.RegisterRefactorings(actions);
    }
}