using System.Drawing.Imaging;
using System.IO;
using System.Web.Mvc;
using ZXing;
using ZXing.QrCode;

namespace QR_GEN.Controllers
{
  public class HomeController : Controller
  {
    public ActionResult Index()
    {
      return View();
    }

    public RedirectResult steamware()
    {
      return Redirect("https://www.steamware.net");
    }
    /// <summary>
    /// Restituisce un QR code dato valore
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    public ActionResult QR(string id)
    {
      // se vuoto stea,ware...
      if (id == null || id == "")
      {
        id = "www.steamware.net";
      }
      // creo!
      QrCodeEncodingOptions options = new QrCodeEncodingOptions
      {
        DisableECI = true,
        CharacterSet = "UTF-8",
        Width = 600,
        Height = 600,
        Margin = 0
      };
      var writer = new BarcodeWriter();
      writer.Format = BarcodeFormat.QR_CODE;
      writer.Options = options;
      // scrivo bitmap
      var pixelData = writer.Write(id);

      // Return Image
      MemoryStream ms = new MemoryStream();
      pixelData.Save(ms, ImageFormat.Png);
      ms.Position = 0;
      return new FileStreamResult(ms, "image/png");
    }
  }
}