namespace Server.Infrastructure.TagHelpers;

[Microsoft.AspNetCore.Razor.TagHelpers.HtmlTargetElement
    (tag: "section-form-header",
    ParentTag = "fieldset",
    TagStructure = Microsoft.AspNetCore.Razor.TagHelpers.TagStructure.NormalOrSelfClosing)]
public class SectionFormHeaderTagHelper :
    Microsoft.AspNetCore.Razor.TagHelpers.TagHelper
{
    public SectionFormHeaderTagHelper() : base()
    {
    }

    public async override Task ProcessAsync
        (Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context,
        Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
    {
        // **************************************************
        var originalContents =
            await
            output.GetChildContentAsync();
        // **************************************************

        // **************************************************
        var horizontalRule =
            new Microsoft.AspNetCore.Mvc
            .Rendering.TagBuilder(tagName: "hr")
            {
                TagRenderMode =
                    Microsoft.AspNetCore.Mvc.Rendering.TagRenderMode.SelfClosing,
            };

        horizontalRule.AddCssClass(value: "mt-4");
        // **************************************************

        // **************************************************
        var body =
            new Microsoft.AspNetCore.Mvc
            .Rendering.TagBuilder(tagName: "legend");

        body.AddCssClass(value: "text-center");

        body.InnerHtml.AppendHtml(content: originalContents);
        // **************************************************

        // **************************************************
        output.TagName = null;

        output.TagMode =
            Microsoft.AspNetCore.Razor.TagHelpers.TagMode.StartTagAndEndTag;
        // **************************************************

        output.Content.SetHtmlContent(htmlContent: body);
        output.PostElement.AppendHtml(htmlContent: horizontalRule);
    }
}
