// 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.Completion;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;
using Microsoft.CodeAnalysis.Shared.TestHooks;
 
namespace Microsoft.CodeAnalysis.Interactive
{
    internal sealed class InteractiveCommandCompletionService : CompletionService
    {
        [ExportLanguageServiceFactory(typeof(CompletionService), InteractiveLanguageNames.InteractiveCommand), Shared]
        internal sealed class Factory : ILanguageServiceFactory
        {
            private readonly IAsynchronousOperationListenerProvider _listenerProvider;
 
            [ImportingConstructor]
            [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
            public Factory(IAsynchronousOperationListenerProvider listenerProvider)
            {
                _listenerProvider = listenerProvider;
            }
 
            public ILanguageService CreateLanguageService(HostLanguageServices languageServices)
                => new InteractiveCommandCompletionService(languageServices.LanguageServices.SolutionServices, _listenerProvider);
        }
 
        private InteractiveCommandCompletionService(SolutionServices services, IAsynchronousOperationListenerProvider listenerProvider)
            : base(services, listenerProvider)
        {
        }
 
        public override string Language
            => InteractiveLanguageNames.InteractiveCommand;
 
        internal override CompletionRules GetRules(CompletionOptions options)
            => CompletionRules.Default;
    }
}