// 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;
using Microsoft.CodeAnalysis.Editor;
using Microsoft.CodeAnalysis.Editor.Shared.Extensions;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.VisualStudio.LanguageServices.CSharp.Options.Formatting;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
 
namespace Microsoft.VisualStudio.LanguageServices.CSharp.LanguageService;
 
[ExportLanguageService(typeof(IOptionPageService), LanguageNames.CSharp), Shared]
internal sealed class CSharpOptionPageService : IOptionPageService
{
    private readonly CSharpPackage _package;
    private readonly IThreadingContext _threadingContext;
 
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public CSharpOptionPageService(IThreadingContext threadingContext, SVsServiceProvider serviceProvider)
    {
        var shell = (IVsShell)serviceProvider.GetService(typeof(SVsShell));
        ErrorHandler.ThrowOnFailure(shell.LoadPackage(Guids.CSharpPackageId, out var package));
        _package = (CSharpPackage)package;
        _threadingContext = threadingContext;
    }
 
    public void ShowFormattingOptionPage()
    {
        _threadingContext.ThrowIfNotOnUIThread();
        _package.ShowOptionPage(typeof(FormattingOptionPage));
    }
}