// 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.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.DocumentHighlighting;
 
namespace Microsoft.CodeAnalysis.ExternalAccess.VSTypeScript.Api
{
    /// <summary>
    /// TODO: Ideally, we would export TypeScript service and delegate to an imported TypeScript service implementation.
    /// However, TypeScript already exports the service so we would need to coordinate the change.
    /// </summary>
    internal abstract class VSTypeScriptDocumentHighlightsServiceBase : IDocumentHighlightsService
    {
        protected abstract Task<ImmutableArray<DocumentHighlights>> GetDocumentHighlightsAsync(
            Document document, int position, IImmutableSet<Document> documentsToSearch, CancellationToken cancellationToken);
 
        Task<ImmutableArray<DocumentHighlights>> IDocumentHighlightsService.GetDocumentHighlightsAsync(
            Document document, int position, IImmutableSet<Document> documentsToSearch, HighlightingOptions options, CancellationToken cancellationToken)
            => GetDocumentHighlightsAsync(document, position, documentsToSearch, cancellationToken);
    }
}