using System.Web.Mvc;

namespace HtmlHelperExtensions
{
    public static class HtmlHelperExtensions
    {
        public static MvcHtmlString If(this MvcHtmlString value, bool evaluation)
        {
            return evaluation ? value : MvcHtmlString.Empty;
        }

        public static MvcHtmlString AddMenuItem(this HtmlHelper html, string action, string imagePath, string alt)
        {
            var url = new UrlHelper(html.ViewContext.RequestContext);

            // build the <img> tag
            var imgBuilder = new TagBuilder("img");
            imgBuilder.MergeAttribute("src", url.Content(imagePath));
            imgBuilder.MergeAttribute("alt", alt);
            string imgHtml = imgBuilder.ToString(TagRenderMode.SelfClosing);

            // build the <a> tag
            var anchorBuilder = new TagBuilder("a");
            anchorBuilder.MergeAttribute("href", url.Action(action));
            anchorBuilder.InnerHtml = imgHtml + "<br />" + action; // include the <img> tag inside
            string anchorHtml = anchorBuilder.ToString(TagRenderMode.Normal);

            return MvcHtmlString.Create(anchorHtml);
        }
    }
}