using System;
using System.IO;
using System.Text;
using System.Web.Mvc;
using DR.FV2016.Service;
using StructureMap;

namespace DR.FV2016.Web.Helpers
{
    public static class HtmlHelper
    {
        public static MvcHtmlString GetFileContent<T>(this HtmlHelper<T> helper, string fileName)
        {
            var file = helper.ViewContext.HttpContext.Server.MapPath(fileName);
            if (File.Exists(file))
            {
                using (var stream = File.OpenRead(file))
                using (var streamReader = new StreamReader(stream, Encoding.UTF8))
                {
                    var content = streamReader.ReadToEnd();
                    return new MvcHtmlString(content);
                }
            }
            throw new FileNotFoundException("Can't fine it", file);
        }

        public static MvcHtmlString IncludeHtml<TModel>(this HtmlHelper<TModel> htmlHelper, Uri url)
        {
            var htmlResourceService = ObjectFactory.GetInstance<IHtmlResourceService>();
            try
            {
                var content = htmlResourceService.GetHtml(url);
                return MvcHtmlString.Create(content);
            }
            catch
            {
                return MvcHtmlString.Empty;
                //return MvcHtmlString.Create("<!-- failed to load " + url + " -->");
            }
        }

        public static MvcHtmlString IncludeHtml<TModel>(this HtmlHelper<TModel> htmlHelper, string url)
        {
            var htmlResourceService = ObjectFactory.GetInstance<IHtmlResourceService>();
            try
            {
                var content = htmlResourceService.GetHtml(new Uri(url));
                return MvcHtmlString.Create(content);
            }
            catch
            {
                return MvcHtmlString.Empty;
                //return MvcHtmlString.Create("<!-- failed to load " + url + " -->");
            }
        }
    }
}