using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using MySql.Data.MySqlClient;
using System.Net;
using System.Windows;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace DAHTOOLS_SERVER
{
    class Program
    {
        public static string GetMd5Hash(string TextToHash)
        {
            if (string.IsNullOrEmpty(TextToHash))
            {
                return string.Empty;
            }

            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] textToHash = Encoding.Default.GetBytes(TextToHash);
            byte[] result = md5.ComputeHash(textToHash);

            string res = BitConverter.ToString(result);

            res = res.Replace("-", "");
            res = res.ToLower();

            return res;
        }
        static void Main(string[] args)
        {
            int port = 8883;
            String ip = "127.0.0.1";
            Socket ServerListener = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);
            IPEndPoint ep = new IPEndPoint(IPAddress.Parse(ip),port);
            ServerListener.Bind(ep);
            ServerListener.Listen(100);
            Console.WriteLine("Server is online...");
            Socket ClientSocket = default(Socket);
            Program p = new Program();


            String correo = "", passhash = "", passsalt = "", nombredegrupo = "";
            try
            {
                string myConnection = "Server=localhost; DATABASE = dahtools; Uid=root; Pwd=@P0pc0rn7;";
                MySqlConnection myConn = new MySqlConnection(myConnection);
                MySqlCommand SelectCommand = new MySqlCommand(
                "select cm_credits, email, g_title,members_pass_hash,members_pass_salt,member_group_id FROM members INNER JOIN groups ON members.member_group_id = groups.g_id WHERE name='DHoff';", myConn);
                MySqlDataReader myReader;
                myConn.Open();
                myReader = SelectCommand.ExecuteReader();
                while (myReader.Read())
                {
                    correo = myReader.GetString("email");
                    passhash = myReader.GetString("members_pass_hash");
                    passsalt = myReader.GetString("members_pass_salt");
                    nombredegrupo = myReader.GetString("g_title");

                }
            }
            catch (MySqlException ex)
            {
            }
            String md5pass, md5salt;
            md5pass = GetMd5Hash("@P0pc0rn8");
            md5salt = GetMd5Hash(null);
            string s = GetMd5Hash(md5salt + md5pass);
            Console.WriteLine(s);

            while (true)
            {

                ClientSocket = ServerListener.Accept();
                byte[] msg = new byte[1024];
                int size = ClientSocket.Receive(msg, 0, msg.Length, SocketFlags.None);
                string raw = System.Text.Encoding.ASCII.GetString(msg);
                string[] data = raw.Split(',');
                Console.WriteLine(data[1] + " connected under the IP:" + ClientSocket.RemoteEndPoint + " attempting to call the " + data[0] + " method.");
                Thread UserThread = new Thread(new ThreadStart(()=>p.User(ClientSocket, data)));
                UserThread.Start();
            }
        }
        public void User(Socket client, string[] data)
        {
            //determines method
            if (data[0].Equals("login"))
            {
                string response = "";
                if(data[1].Equals("root") && data[2].Equals("password"))
                {
                    response = "true";
                    client.Send(System.Text.Encoding.ASCII.GetBytes(response), 0, response.Length, SocketFlags.None);
                    ////////////////////

                }
                Console.WriteLine("sends to login verification");
            }
        }
    }
}