// 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.
 
namespace Roslyn.LanguageServer.Protocol;
 
using System.Text.Json.Serialization;
 
/// <summary>
/// Extension to Hover which adds additional data for colorization.
/// </summary>
internal sealed class VSInternalHover : Hover
{
    /// <summary>
    /// Gets or sets the value which represents the hover content as a tree
    /// of objects from the Microsoft.VisualStudio.Text.Adornments namespace,
    /// such as ContainerElements, ClassifiedTextElements and ClassifiedTextRuns.
    /// </summary>
    [JsonPropertyName("_vs_rawContent")]
    [JsonConverter(typeof(ObjectContentConverter))]
    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
    public object? RawContent { get; set; }
 
    /// <summary>
    /// The hover's content
    /// </summary>
    /// <remarks>
    /// This may only be null when <see cref="RawContent"/> is specified instead of <see cref="Contents"/>.
    /// </remarks>
    [JsonPropertyName("contents")]
    [JsonRequired]
#pragma warning disable CS0618 // MarkedString is obsolete but this property is not
    public new SumType<string, MarkedString, SumType<string, MarkedString>[], MarkupContent>? Contents
    {
        get => contentsIsNull ? (SumType<string, MarkedString, SumType<string, MarkedString>[], MarkupContent>?)null : base.Contents;
        set
        {
            contentsIsNull = value is null;
            if (value is not null)
            {
                base.Contents = value.Value;
            }
        }
    }
 
    bool contentsIsNull = false;
#pragma warning restore CS0618
}