using System.IO;

namespace System.Web.Mvc
{
    public static class ImageHelper
    {
        public static MvcHtmlString ImageTag(string imageUrl, string imageSize, string alt = "", string classes = "")
        {
            var extension = Path.GetExtension(imageUrl);
            var builder = new TagBuilder("img");
            string fullImageUrl = (imageUrl.Substring(0, imageUrl.Length - extension.Length)) + ImageSize.GetSize(imageSize) + extension;
            builder.MergeAttribute("src", fullImageUrl);

            if (alt != "")
            {
                builder.MergeAttribute("alt", alt);
            }

            if (classes != "")
            {
                builder.MergeAttribute("class", classes);
            }


            return MvcHtmlString.Create(builder.ToString(TagRenderMode.SelfClosing));
        }
    }
}