// 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.Collections.Immutable;
using System.ComponentModel.Composition;
using Microsoft.CodeAnalysis.Editor;
using Microsoft.CodeAnalysis.Editor.Implementation.LanguageClient;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.Editor.Xaml;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.LanguageServer;
using Microsoft.CodeAnalysis.Options;
using Microsoft.VisualStudio.Composition;
using Microsoft.VisualStudio.LanguageServer.Client;
using Roslyn.LanguageServer.Protocol;
using Microsoft.VisualStudio.LanguageServices.Xaml.LanguageServer;
using Microsoft.VisualStudio.Utilities;
 
namespace Microsoft.VisualStudio.LanguageServices.Xaml
{
    /// <summary>
    /// XAML Language Server Client for LiveShare and Codespaces. Unused when
    /// <see cref="XamlOptions.EnableLspIntelliSenseFeatureFlag"/> is turned on.
    /// Remove this when we are ready to use LSP everywhere
    /// </summary>
    [DisableUserExperience(true)]
    [ContentType(ContentTypeNames.XamlContentType)]
    [Export(typeof(ILanguageClient))]
    internal class XamlInProcLanguageClientDisableUX : AbstractInProcLanguageClient
    {
        [ImportingConstructor]
        [Obsolete(MefConstruction.ImportingConstructorMessage, true)]
        public XamlInProcLanguageClientDisableUX(
            XamlLspServiceProvider lspServiceProvider,
            IGlobalOptionService globalOptions,
            ILspServiceLoggerFactory lspLoggerFactory,
            IThreadingContext threadingContext,
            ExportProvider exportProvider)
            : base(lspServiceProvider, globalOptions, lspLoggerFactory, threadingContext, exportProvider)
        {
        }
 
        protected override ImmutableArray<string> SupportedLanguages => ImmutableArray.Create(StringConstants.XamlLanguageName);
 
        public override ServerCapabilities GetCapabilities(ClientCapabilities clientCapabilities)
        {
            var isLspExperimentEnabled = GlobalOptions.GetOption(XamlOptions.EnableLspIntelliSenseFeatureFlag);
            var capabilities = isLspExperimentEnabled ? XamlCapabilities.None : XamlCapabilities.Current;
 
            // Only turn on CodeAction support for client scenarios. Hosts will get non-LSP lightbulbs automatically.
            capabilities.CodeActionProvider = new CodeActionOptions { CodeActionKinds = [CodeActionKind.QuickFix, CodeActionKind.Refactor], ResolveProvider = true };
 
            return capabilities;
        }
 
        /// <summary>
        /// Failures are catastrophic as liveshare guests will not have language features without this server.
        /// </summary>
        public override bool ShowNotificationOnInitializeFailed => true;
 
        public override WellKnownLspServerKinds ServerKind => WellKnownLspServerKinds.XamlLspServerDisableUX;
    }
}