using Data;
using SteamWare;
using System;
using System.IO;
using System.Web;
using System.Web.UI.WebControls;

namespace PUB.WebUserContols
{
  public partial class cmp_fileUpload : System.Web.UI.UserControl
  {
    public int idxRichiesta
    {
      get
      {
        int answ = 0;
        int.TryParse(Request.QueryString["idxRichiesta"], out answ);
        return answ;
      }
    }
    public string filtroRich
    {
      get
      {
        string answ = "###";
        if (idxRichiesta > 0) answ = idxRichiesta.ToString();
        return answ;
      }
    }
    /// <summary>
    /// KEY amministratore in sessione
    /// </summary>
    protected int idxAmm
    {
      get
      {
        return memLayer.ML.IntSessionObj("idxAmm");
      }
    }
    /// <summary>
    /// KEY fornitore in sessione
    /// </summary>
    protected int idxFornitore
    {
      get
      {
        return memLayer.ML.IntSessionObj("idxFornitore");
      }
    }
    /// <summary>
    /// permesso scrittura SE E' un FORNITORE / AMMINISTRATORE
    /// </summary>
    public bool userIsAuth
    {
      get
      {
        return (idxAmm + idxFornitore > 0);
      }
    }
    public bool isWriteEnabled
    {
      get
      {
        bool answ = false;
        bool.TryParse(hfWriteEnabled.Value, out answ);
        return answ;
      }
      set
      {
        hfWriteEnabled.Value = value.ToString();
      }
    }
    protected void Page_Load(object sender, EventArgs e)
    {
      if (!IsPostBack)
      {
        fisVisFU(false);
        grView.DataBind();
      }
      divNewEdit.Visible = userIsAuth && isWriteEnabled;
    }
    protected void Upload(object sender, EventArgs e)
    {
      if (FileUpload1.PostedFile != null)
      {
        string filename = Path.GetFileName(FileUpload1.PostedFile.FileName);
        string contentType = FileUpload1.PostedFile.ContentType;
        using (Stream fs = FileUpload1.PostedFile.InputStream)
        {
          using (BinaryReader br = new BinaryReader(fs))
          {
            byte[] bytes = br.ReadBytes((Int32)fs.Length);
            // controllo se sia caricamento o update...
            if (grView.SelectedIndex != -1)
            {
              try
              {
                int orig_idxFile = Convert.ToInt32(grView.SelectedValue);
                DtProxy.man.taFile.updateQuery(filtroRich, filename, contentType, bytes, orig_idxFile);
              }
              catch
              { }
            }
            else
            {
              DtProxy.man.taFile.insertQuery(filtroRich, filename, contentType, bytes);
            }
          }
        }
      }
      //Response.Redirect(Request.Url.AbsoluteUri);
      Response.Redirect(Request.RawUrl);
    }

    protected void DownloadFile(object sender, EventArgs e)
    {
      int idxFile = int.Parse((sender as LinkButton).CommandArgument);
      byte[] bytes;
      string fileName, contentType;
      Data.DS_Utility.tblFilesRow fileRow = DtProxy.man.taFile.getByKey(idxFile)[0];
      bytes = fileRow.Data;
      contentType = fileRow.ContentType;
      fileName = fileRow.FileName;
      Response.Clear();
      Response.Buffer = true;
      Response.Charset = "";
      Response.Cache.SetCacheability(HttpCacheability.NoCache);
      Response.ContentType = contentType;
      Response.AppendHeader("Content-Disposition", "attachment; filename=" + fileName);
      Response.BinaryWrite(bytes);
      Response.Flush();
      Response.End();
    }

    protected void grView_SelectedIndexChanged(object sender, EventArgs e)
    {
      // mostro controllo x edit...  
      fisVisFU(true);
      btnUpload.Text = "Aggiorna File";
    }

    protected void btnAdd_Click(object sender, EventArgs e)
    {
      fisVisFU(true);
      btnUpload.Text = "Carica Nuovo";
    }
    /// <summary>
    /// fix visibilità controllo file upload
    /// </summary>
    /// <param name="showAdd">mostra controlli add=true oppure nasconde = false</param>
    private void fisVisFU(bool showAdd)
    {
      divFileUpl.Visible = showAdd;
      btnAdd.Visible = !showAdd;
      btnCancel.Visible = showAdd;
      if (grView.SelectedIndex != -1 && !showAdd)
      {
        grView.SelectedIndex = -1;
      }
    }

    protected void btnCancel_Click(object sender, EventArgs e)
    {
      fisVisFU(false);
    }

  }
}