using System;
using System.Net.Sockets;
using System.IO;

public class Whois {
    static void Main(string[] args) {
        string username = args[0];
        string location = string.Empty;
        string IP = "whois.net.dcs.hull.ac.uk";
        int port = 43;

        TcpClient client = new TcpClient();
        StreamWriter sw = new StreamWriter(client.GetStream());
        StreamReader sr = new StreamReader(client.GetStream());
        client.Connect(IP, port);

        try {
            //Read current location
            if (args.Length == 1) {
                sw.WriteLine(args[0]);
                sw.Flush();
                location = sr.ReadToEnd();
                Console.WriteLine(username + " is " + location);
            }
            //Write new location
            else if (args.Length > 0) {
                int i = 1;
                //Console.Write(username + " location changed to "); **Commented out as job done by line 37
                //Loop through array to get location
                while (i < args.Length) {
                    //Console.Write(args[i] + " ");  **Don't write to console, write to location string instead
                    location = location + args[i];
                    i++;
                }
                sw.Flush(); //## ISN'T WRITING NEW LOCATION TO SERVER
                //Console.WriteLine(username + " location successfully updated to " + location); *******TEMP COMMENT OUT TO TEST line 37
                Console.WriteLine(username + " location successfully updated to " + sr.ReadToEnd());
            }
        }
        catch {
            Console.WriteLine("No entries found for user " + username);
        }
    }
}