using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection.Emit;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace OP2_LB5_WEB
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Label1.Visible = false;
            Label2.Visible = false;
            Label3.Visible = false;
            Label4.Visible = false;

            if(File.Exists(Server.MapPath("Rezultatai/Rezultatai.txt")))
            {
                File.Delete(Server.MapPath("Rezultatai/Rezultatai.txt"));
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            List<EmailRegister> emailRegister = InOut.ReadEmailData(Server.MapPath("App_Data/email"));
            Session["emailRegister"] = emailRegister;

            Label1.Visible = true;
            PrintEmailData(Table1, emailRegister);

            List<Server> servers = InOut.ReadServerData(Server.MapPath("App_Data/server"));
            Session["servers"] = servers;

            Label2.Visible = true;
            PrintServerData(Table2, servers);
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            if (Session["emailRegister"] == null || Session["servers"] == null)
            {
                Label3.Visible = true;
                Label3.Text = "Pradiniai duomenys nebuvo nuskaityti";
            }
            else
            {
                try
                {
                    List<EmailRegister> emailRegister = (List<EmailRegister>)Session["emailRegister"];
                    List<Server> servers = (List<Server>)Session["servers"];

                    InOut.PrintStartEmailData(Server.MapPath("Rezultatai/Rezultatai.txt"), "El. pašto pradiniai duomenys", emailRegister);
                    InOut.PrintStartServerData(Server.MapPath("Rezultatai/Rezultatai.txt"), "Serverių pradiniai duomenys", servers);

                    List <Server> filteredServer = TaskUtils.FilterServers(servers, emailRegister);

                    Label3.Visible = true;
                    if (filteredServer.Count > 0)
                    {
                        filteredServer = TaskUtils.Sort(filteredServer);
                        PrintFilteredServerData(Table3, filteredServer);
                        InOut.PrintFilteredServerData(Server.MapPath("Rezultatai/Rezultatai.txt"), "Rezultatai", filteredServer);
                    }
                    else
                    {
                        Label3.Text = "Nera serverių.";
                    }

                }
                catch (Exception ex)
                {
                    Label4.Visible = true;
                    Label4.Text = ex.Message;

                    StreamWriter sw = new StreamWriter(Server.MapPath("Rezultatai/Rezultatai.txt"));

                    sw.WriteLine(ex.Message);
                    sw.WriteLine();

                    sw.Close();
                }
            }
        }
    }
}