// 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.
 
#nullable disable
 
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.CodeModel;
 
internal partial class AbstractCodeModelService : ICodeModelService
{
    protected abstract AbstractNodeLocator CreateNodeLocator();
 
    protected abstract class AbstractNodeLocator
    {
        protected abstract string LanguageName { get; }
 
        protected abstract EnvDTE.vsCMPart DefaultPart { get; }
 
        protected abstract VirtualTreePoint? GetStartPoint(SourceText text, LineFormattingOptions options, SyntaxNode node, EnvDTE.vsCMPart part);
        protected abstract VirtualTreePoint? GetEndPoint(SourceText text, LineFormattingOptions options, SyntaxNode node, EnvDTE.vsCMPart part);
 
        public VirtualTreePoint? GetStartPoint(SyntaxNode node, LineFormattingOptions options, EnvDTE.vsCMPart? part)
        {
            var text = node.SyntaxTree.GetText();
            return GetStartPoint(text, options, node, part ?? DefaultPart);
        }
 
        public VirtualTreePoint? GetEndPoint(SyntaxNode node, LineFormattingOptions options, EnvDTE.vsCMPart? part)
        {
            var text = node.SyntaxTree.GetText();
            return GetEndPoint(text, options, node, part ?? DefaultPart);
        }
    }
}