// 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.Diagnostics.CodeAnalysis;
 
namespace Microsoft.CodeAnalysis.Host
{
    internal static class Extensions
    {
        private const string RazorCSharpLspClientName = "RazorCSharp";
 
        public static bool CanApplyChange([NotNullWhen(returnValue: true)] this TextDocument? document)
            => document?.State.CanApplyChange() ?? false;
 
        public static bool CanApplyChange([NotNullWhen(returnValue: true)] this TextDocumentState? document)
            => document?.Services.GetService<IDocumentOperationService>()?.CanApplyChange ?? false;
 
        public static bool SupportsDiagnostics([NotNullWhen(returnValue: true)] this TextDocument? document)
            => document?.State.SupportsDiagnostics() ?? false;
 
        public static bool SupportsDiagnostics([NotNullWhen(returnValue: true)] this TextDocumentState? document)
            => document?.Services.GetService<IDocumentOperationService>()?.SupportDiagnostics ?? false;
 
        public static bool IsRazorDocument(this TextDocument document)
            => IsRazorDocument(document.State);
 
        public static bool IsRazorDocument(this TextDocumentState documentState)
            => documentState.Services.GetService<DocumentPropertiesService>()?.DiagnosticsLspClientName == RazorCSharpLspClientName;
    }
}