// 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.ComponentModel.Composition;
using Microsoft.CodeAnalysis.Editor;
using Microsoft.CodeAnalysis.Editor.Xaml;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.VisualStudio.ComponentModelHost;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Text.Editor;
using Microsoft.VisualStudio.Utilities;
 
namespace Microsoft.VisualStudio.LanguageServices.Xaml;
 
[Export(typeof(IWpfTextViewCreationListener))]
[ContentType(ContentTypeNames.XamlContentType)]
[TextViewRole(PredefinedTextViewRoles.PrimaryDocument)]
[TextViewRole(PredefinedTextViewRoles.Document)]
internal sealed partial class XamlTextViewCreationListener : IWpfTextViewCreationListener
{
    // Temporary UIConext GUID owned by the XAML language service until we can get a KnownUIContext
    private static readonly Guid s_serverUIContextGuid = new Guid("39F55746-6E65-4FCF-BEC5-EC0B466EAC0F");
 
    private readonly IServiceProvider _serviceProvider;
    private readonly XamlProjectService _projectService;
    private readonly UIContext _serverUIContext;
 
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public XamlTextViewCreationListener(
        [Import(typeof(SVsServiceProvider))] IServiceProvider serviceProvider,
        XamlProjectService projectService)
    {
        _serviceProvider = serviceProvider;
        _projectService = projectService;
        _serverUIContext = UIContext.FromUIContextGuid(s_serverUIContextGuid);
    }
 
    public void TextViewCreated(IWpfTextView textView)
    {
        if (_serverUIContext.IsActive)
        {
            return;
        }
 
        if (textView == null)
        {
            throw new ArgumentNullException(nameof(textView));
        }
 
        var filePath = textView.GetFilePath();
 
        _projectService.TrackOpenDocument(filePath);
 
        var target = new XamlOleCommandTarget(textView, (IComponentModel)_serviceProvider.GetService(typeof(SComponentModel)));
        target.AttachToVsTextView();
    }
}