using AppData;
using SteamWare;
using System;
using System.IO;
using System.Web.UI;

namespace NKC_WF
{
    public class BasePage : System.Web.UI.Page
    {
        /// <summary>
        /// Membro gestione accessi al datalayer (istanza x ogni classe controllo)
        /// </summary>
        protected DataLayer DLMan = new DataLayer();
        /// <summary>
        /// Wrapper traduzione termini
        /// </summary>
        /// <param name="lemma"></param>
        /// <returns></returns>
        public string traduci(string lemma)
        {
            return user_std.UtSn.Traduci(lemma);
        }
        /// <summary>
        /// Wrapper scrittura log INFO
        /// </summary>
        /// <param name="message"></param>
        public void lgInfo(string message)
        {
            logger.lg.scriviLog(message, tipoLog.INFO);
        }
        /// <summary>
        /// Wrapper scrittura log ERROR
        /// </summary>
        /// <param name="message"></param>
        public void lgError(string message)
        {
            logger.lg.scriviLog(message, tipoLog.ERROR);
        }
        /// <summary>
        /// Wrapper scrittura log EXCEPTION
        /// </summary>
        /// <param name="message"></param>
        public void lgException(string message, Exception exc)
        {
            logger.lg.scriviLog($"{message}{Environment.NewLine}{exc}", tipoLog.EXCEPTION);
        }
        /// <summary>
        /// Wrapper scrittura log FATAL
        /// </summary>
        /// <param name="message"></param>
        public void lgFatal(string message, Exception exc)
        {
            logger.lg.scriviLog(message, tipoLog.FATAL);
        }

        #region gestione compresisone viewstate

        protected override object LoadPageStateFromPersistenceMedium()
        {
            string viewState = Request.Form["__VSTATE"];
            byte[] bytes = Convert.FromBase64String(viewState);
            bytes = Compressor.Decompress(bytes);
            LosFormatter formatter = new LosFormatter();
            return formatter.Deserialize(Convert.ToBase64String(bytes));
        }

        protected override void SavePageStateToPersistenceMedium(object viewState)
        {
            LosFormatter formatter = new LosFormatter();
            StringWriter writer = new StringWriter();
            formatter.Serialize(writer, viewState);
            string viewStateString = writer.ToString();
            byte[] bytes = Convert.FromBase64String(viewStateString);
            bytes = Compressor.Compress(bytes);
            ClientScript.RegisterHiddenField("__VSTATE", Convert.ToBase64String(bytes));
        }

        #endregion

    }
}