/// <summary>
///     Markdig extension for tabbed content blocks.
///     Uses the <c>=== "Tab Title"</c> syntax.
/// </summary>
public sealed class TabbedContentExtension : IMarkdownExtension
{
    /// <inheritdoc/>
    public void Setup(MarkdownPipelineBuilder pipeline)
    {
        if (!pipeline.BlockParsers.Contains<TabGroupParser>())
        {
            pipeline.BlockParsers.InsertBefore<ThematicBreakParser>(new TabGroupParser());
        }
    }

    /// <inheritdoc/>
    public void Setup(MarkdownPipeline pipeline, IMarkdownRenderer renderer)
    {
        if (renderer is HtmlRenderer htmlRenderer)
        {
            if (!htmlRenderer.ObjectRenderers.Contains<TabGroupRenderer>())
            {
                htmlRenderer.ObjectRenderers.Add(new TabGroupRenderer());
            }

            if (!htmlRenderer.ObjectRenderers.Contains<TabItemRenderer>())
            {
                htmlRenderer.ObjectRenderers.Add(new TabItemRenderer());
            }
        }
    }
}