using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Web.Script.Serialization;

public class FileUpload : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {
        HttpContext.Current.Server.ScriptTimeout = 7200;
        context.Response.ContentType = "text/plain";
        context.Response.Expires = -1;
        
        string type = context.Request["type"];
        string id = context.Request["id"];
        string result = string.Empty;
        if (context.Request.Files.Count == 0)
        {
            context.Response.ContentType = "text/plain";
            context.Response.Write("{\"msg_error\":\"" + Messaggi.ERR_NO_FILE + "\"}");
        }
        else
        {
            HttpPostedFile uploadedfile = context.Request.Files["Filedata"];

            if (uploadedfile != null && uploadedfile.ContentLength > 0)
            {
                string FileName = uploadedfile.FileName;
                string FileType = uploadedfile.ContentType;
                int FileSize = uploadedfile.ContentLength;

                string id_item = "0";
                string name = string.Empty;
                string filename = string.Empty;
                string link = string.Empty;
                string error = string.Empty;
                string param1 = string.Empty;
                                
                List<string> msg_error = new List<string>();
                List<string> param = new List<string>();

                LogRequest(FileName + ", " + FileType + ", " + FileSize);

                switch (type)
                {                       
                    case "video_news":
                       ...
                        break;

                    default:
                        break;
                }
                
            }
            else
            {
                result = "{\"msg_error\":\"" + Messaggi.ERR_DESC_ZERO_LENGTH_FILE + "\"}";
            }
            context.Response.ContentType = "text/plain";
            context.Response.Write(result);
        }
    }

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }

    private void LogRequest(string Log)
    {
        //StreamWriter sw = new StreamWriter(HttpContext.Current.Server.MapPath("/Log") + "\\Log.txt", true);
        //sw.WriteLine(DateTime.Now.ToString() + " - " + Log);
        //sw.Flush();
        //sw.Close();
    }

}