// 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.VisualStudio.GraphModel;
 
namespace Microsoft.VisualStudio.LanguageServices.Implementation.Progression;
 
internal sealed class GraphFormattedLabelExtension : IGraphFormattedLabel
{
    public string Description(GraphObject graphObject, string graphCommandDefinitionIdentifier)
    {
        return GetStringPropertyForGraphObject(
            graphObject,
            graphCommandDefinitionIdentifier,
            RoslynGraphProperties.Description,
            RoslynGraphProperties.DescriptionWithContainingSymbol);
    }
 
    public string Label(GraphObject graphObject, string graphCommandDefinitionIdentifier)
    {
        return GetStringPropertyForGraphObject(
            graphObject,
            graphCommandDefinitionIdentifier,
            RoslynGraphProperties.FormattedLabelWithoutContainingSymbol,
            RoslynGraphProperties.FormattedLabelWithContainingSymbol);
    }
 
    private static string GetStringPropertyForGraphObject(GraphObject graphObject, string graphCommandDefinitionIdentifier, GraphProperty propertyWithoutContainingSymbol, GraphProperty propertyWithContainingSymbol)
    {
 
        if (graphObject is GraphNode graphNode)
        {
            if (graphCommandDefinitionIdentifier != GraphCommandDefinition.Contains.Id)
            {
                return graphNode.GetValue<string>(propertyWithContainingSymbol);
            }
            else
            {
                return graphNode.GetValue<string>(propertyWithoutContainingSymbol);
            }
        }
 
        return null;
    }
}