// 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;
using Microsoft.CodeAnalysis.Completion;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Options;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.ExternalAccess.VSTypeScript.Api
{
    internal abstract class VSTypeScriptCompletionProvider : CompletionProvider
    {
        public sealed override bool ShouldTriggerCompletion(SourceText text, int caretPosition, CompletionTrigger trigger, OptionSet options)
        {
            Debug.Fail("For backwards API compat only, should not be called");
            return ShouldTriggerCompletionImpl(text, caretPosition, trigger, CompletionOptions.Default.TriggerOnTypingLetters);
        }
 
        internal sealed override bool ShouldTriggerCompletion(LanguageServices languageServices, SourceText text, int caretPosition, CompletionTrigger trigger, CompletionOptions options, OptionSet passThroughOptions)
            => ShouldTriggerCompletionImpl(text, caretPosition, trigger, options.TriggerOnTypingLetters);
 
        protected abstract bool ShouldTriggerCompletionImpl(SourceText text, int caretPosition, CompletionTrigger trigger, bool triggerOnTypingLetters);
    }
}