using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Lib.Network.PingIP;
using Lib.System.Command;


namespace Brendan
{
    class Program
    {
        private const string prefixBeforeLogon = ">";
        private const string prefixAfterLogon = "(BT):>>";
        private const string uname = "Brendan";
        private const string pwd = "password";


        private enum EnumCommand
        {
            Invalid,
            Exit,
            Login,
            Logout,
            Username,
            Ping,
            CLS,
            RDP
        }

        /// <summary>
        /// Main program
        /// </summary>
        /// <param name="args">The args as string array.</param>
        static void Main(string[] args)
        {
            var loggedIn = false;


            Console.WriteLine("Welcome! Use #Exit to close this program.");

            // Initial input
            Console.Write(prefixBeforeLogon);
            //var cCommand = GetCommand(Console.ReadLine());

            string userInput = Console.ReadLine();
            string[] userParams = userInput.Split(' ');
            var cCommand = GetCommand(userParams[0]);


            // Keep this program running untill user exits
            while (cCommand != EnumCommand.Exit)
            {
                switch (cCommand)
                {

                    case EnumCommand.Invalid:
                        UserCommand.Invalid();
                        Console.WriteLine("Invalid command. Use #Exit to quit!");
                        break;
                    case EnumCommand.Login:
                        UserCommand.Login();
                        Console.Write("Username: ");
                        if (Console.ReadLine() == uname)
                        {
                            Console.Write("Password: ");
                        }
                        else
                        {
                            Console.WriteLine("Invalid Username!");
                        }
                        if (Console.ReadLine() == pwd)
                        {
                            loggedIn = true;


                        }
                        else
                        {
                            Console.WriteLine("Incorrect Password!");
                        }
                        break;
                    case EnumCommand.Logout:
                        UserCommand.Logout();
                        Console.WriteLine("You are logged out!");
                        loggedIn = false;
                        break;
                    case EnumCommand.Username:
                        UserCommand.Username();
                        Console.WriteLine(loggedIn ? "Brendan" : "Please login first");
                        break;
                    default:
                        Console.WriteLine("Program error!");
                        break;
                    case EnumCommand.Ping:
                        UserCommand.Ping();
                        break;
                    case EnumCommand.RDP:
                        UserCommand.RDP();
                        System.Diagnostics.Process.Start("C:\\Windows\\System32\\mstsc.exe");
                        Console.WriteLine("Microsoft Remote Desktop Services Started!");
                        break;

                    case EnumCommand.CLS:
                        UserCommand.CLS();
                        Console.Clear();
                        break;

                }


                // Use of immidiate if - "statement ? if_true : if_false"
                Console.Write(loggedIn ? prefixAfterLogon : prefixBeforeLogon);

                // Get next command
                //cCommand = GetCommand(Console.ReadLine());


                userInput = Console.ReadLine();
                userParams = userInput.Split(' ');
                cCommand = GetCommand(userParams[0]);

            }
        }

        /// <summary>
        /// Returns the enum value of the user command.
        /// </summary>
        /// <param name="userInput">The user input as string.</param>
        /// <returns></returns>
        private static EnumCommand GetCommand(string userInput)
        {
            switch (userInput.ToUpperInvariant())
            {
                case "#EXIT":
                    return EnumCommand.Exit;
                case "#LOGIN":
                    return EnumCommand.Login;
                case "#LOGOUT":
                    return EnumCommand.Logout;
                case "$USERNAME":
                    return EnumCommand.Username;
                case "$PING":
                    return EnumCommand.Ping;
                case "$CLS":
                    return EnumCommand.CLS;
                case "$RDP":
                    return EnumCommand.RDP;
                default:
                    return EnumCommand.Invalid;
            }
        }
    }
}








using System;
using System.Text;
using System.Net;
using System.Net.NetworkInformation;
using System.ComponentModel;
using System.Threading;

namespace Lib.Network.PingIP
{
    public class PingStart
    {
        public static void PingIP(string ipToPing)
        {
            if (ipToPing.Length == 0)
                throw new ArgumentException ("Ping needs a host or IP Address.");

            string who = ipToPing;
            AutoResetEvent waiter = new AutoResetEvent (false);

            Ping pingSender = new Ping ();

            // When the PingCompleted event is raised,
            // the PingCompletedCallback method is called.
            pingSender.PingCompleted += new PingCompletedEventHandler (PingCompletedCallback);

            // Create a buffer of 32 bytes of data to be transmitted.
            string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
            byte[] buffer = Encoding.ASCII.GetBytes (data);

            // Wait 12 seconds for a reply.
            int timeout = 12000;

            // Set options for transmission:
            // The data can go through 64 gateways or routers
            // before it is destroyed, and the data packet
            // cannot be fragmented.
            PingOptions options = new PingOptions (64, true);

            Console.WriteLine ("Time to live: {0}", options.Ttl);
            Console.WriteLine ("Don't fragment: {0}", options.DontFragment);

            // Send the ping asynchronously.
            // Use the waiter as the user token.
            // When the callback completes, it can wake up this thread.
            pingSender.SendAsync(who, timeout, buffer, options, waiter);

            // Prevent this example application from ending.
            // A real application should do something useful
            // when possible.
            waiter.WaitOne ();
            Console.WriteLine ("Ping example completed.");
        }

        private static void PingCompletedCallback (object sender, PingCompletedEventArgs e)
        {
            // If the operation was canceled, display a message to the user.
            if (e.Cancelled)
            {
                Console.WriteLine ("Ping canceled.");

                // Let the main thread resume.
                // UserToken is the AutoResetEvent object that the main thread
                // is waiting for.
                ((AutoResetEvent)e.UserState).Set ();
            }

            // If an error occurred, display the exception to the user.
            if (e.Error != null)
            {
                Console.WriteLine ("Ping failed:");
                Console.WriteLine (e.Error.ToString ());

                // Let the main thread resume.
                ((AutoResetEvent)e.UserState).Set();
            }

            PingReply reply = e.Reply;

            DisplayReply (reply);

            // Let the main thread resume.
            ((AutoResetEvent)e.UserState).Set();
        }

        public static void DisplayReply (PingReply reply)
        {
            if (reply == null)
                return;

            Console.WriteLine ("ping status: {0}", reply.Status);
            if (reply.Status == IPStatus.Success)
            {
                Console.WriteLine("Address: {0}", reply.Address.ToString());
                Console.WriteLine("RoundTrip time: {0}", reply.RoundtripTime);
                Console.WriteLine("Time to live: {0}", reply.Options.Ttl);
                Console.WriteLine("Don't fragment: {0}", reply.Options.DontFragment);
                Console.WriteLine("Buffer size: {0}", reply.Buffer.Length);
            }
        }
    }
}







using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Lib.Network.PingIP;
using Brendan.Program;


namespace Lib.System.Command
{

    class UserCommand
    {

        public static void Invalid() {}
        public static void Login() {}
        public static void Logout() {}
        public static void Username() {}
        public static void Ping(string uInput)
        {
            //Console.Write("Enter Hostname/IP: ");
            //PingStart.PingIP(Console.ReadLine());
            PingStart.PingIP(uInput);

        }
        public static void CLS() {}
        public static void RDP() {}
        public static void Exit() {}
    }
}