namespace Htmx.ApiDemo.Templates.Components;

/// <summary>
/// shadcn-style Card component with optional header (title + description) and footer.
/// </summary>
public sealed class Card : CardBase
{
    private readonly byte[] _extraClassesData;
    private readonly byte[] _headerData;
    private readonly byte[] _contentData;
    private readonly byte[] _footerData;

    public Card(
        string content,
        string title        = "",
        string description  = "",
        string footer       = "",
        string extraClasses = "")
    {
        _extraClassesData = extraClasses.ToUtf8Bytes();
        _contentData      = content.ToUtf8Bytes();

        _headerData = (string.IsNullOrEmpty(title) && string.IsNullOrEmpty(description))
            ? []
            : BuildHeader(title, description);

        _footerData = string.IsNullOrEmpty(footer)
            ? []
            : $"""<div class="flex items-center p-6 pt-0">{footer}</div>""".ToUtf8Bytes();
    }

    private static byte[] BuildHeader(string title, string description)
    {
        var sb = new System.Text.StringBuilder();
        sb.Append("""<div class="flex flex-col space-y-1.5 p-6">""");
        if (!string.IsNullOrEmpty(title))
            sb.Append($"""<h3 class="text-2xl font-semibold leading-none tracking-tight">{title}</h3>""");
        if (!string.IsNullOrEmpty(description))
            sb.Append($"""<p class="text-sm text-muted-foreground">{description}</p>""");
        sb.Append("</div>");
        return sb.ToString().ToUtf8Bytes();
    }

    protected override void RenderExtraClasses(HtmxRenderContext ctx) => ctx.Writer.WriteUtf8(_extraClassesData);
    protected override void RenderHeader(HtmxRenderContext ctx)       => ctx.Writer.WriteUtf8(_headerData);
    protected override void RenderContent(HtmxRenderContext ctx)      => ctx.Writer.WriteUtf8(_contentData);
    protected override void RenderFooter(HtmxRenderContext ctx)       => ctx.Writer.WriteUtf8(_footerData);
}