using System;
using System.Configuration;
using System.Threading;
using DistributedGA.Core.Domain;
using DistributedGA.Core.Implementation;
using DistributedGA.Core.Interface;

namespace DistributedGA.Core.Host {
  class Program {
    static void Main(string[] args) {
      try {
        Console.WriteLine("Starting peer...");
        string ipPrefix = ConfigurationManager.AppSettings["LanIpPrefix"];
        string serverUrl = ConfigurationManager.AppSettings["ContactServerURL"];

        IMessageHandler h = new PeerNetworkMessageHandler();
        h.Init(ipPrefix, serverUrl, "TestProblem", 10000, 100);

        PeerInfo pi = h.GetPeerInfo();
        Console.WriteLine(string.Format("Peer is hostet at IP: {0} and port: {1}", pi.IpAddress, pi.Port));
        Thread.Sleep(1000 * 20);
        Console.WriteLine("Current peers within network:");
        foreach (var item in h.GetCurrentNetwork()) {
          Console.WriteLine(string.Format("Peer at {0}:{1}", item.IpAddress, item.Port));
        }

        int i = 0;
        while (i < 1000) {
          i++;
          Thread.Sleep(1000);
          var message = CreateMessage(pi, i);
          Console.WriteLine("Publishing messages...");
          //h.PublishDataToNetwork(message);
          Console.WriteLine("Messages published.");
          Console.WriteLine("Recieved messages:");
          foreach (var item in h.GetDataFromNetwork()) {
            //Console.WriteLine(string.Format("Message:{0}", GetString(item)));
          }
        }
        h.Dispose();
      }
      catch (Exception ex) {
        Console.WriteLine(ex.Message);
        Console.WriteLine("press any key to continue...");
        Console.ReadLine();
      }

    }

    private static byte[][] CreateMessage(PeerInfo pi, int iterationNumber) {
      string msg1 = string.Concat("Message 1 from Peer ", pi.IpAddress, ":", pi.Port, " at iteration ", iterationNumber);
      string msg2 = string.Concat("Message 2 from Peer ", pi.IpAddress, ":", pi.Port, " at iteration ", iterationNumber);
      return new byte[][] { GetBytes(msg1), GetBytes(msg2) };
    }

    static byte[] GetBytes(string str) {
      byte[] bytes = new byte[str.Length * sizeof(char)];
      System.Buffer.BlockCopy(str.ToCharArray(), 0, bytes, 0, bytes.Length);
      return bytes;
    }

    static string GetString(byte[] bytes) {
      char[] chars = new char[bytes.Length / sizeof(char)];
      System.Buffer.BlockCopy(bytes, 0, chars, 0, bytes.Length);
      return new string(chars);
    }
  }
}