using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net.Sockets;
using System.Net;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string test;
            int test2 = 0;
            try
            {
                StreamReader hosts = new StreamReader(@"C:\windows\system32\drivers\etc\hosts");
                while ((test = hosts.ReadLine()) != null)
                {
                    if (test.Contains("audio-surf")) { test2 = 1; }
                }
                hosts.Close();
            }
            catch (Exception exx) { Console.WriteLine("Couldn't open hosts file. Open this file in notepad:\n\nC:\\windows\\system32\\drivers\\etc\\hosts\n\nand make sure this line is somewhere in it:\n\n127.0.0.1 204.13.11.27\n\n"); }
            if (test2 != 1)
            {
                StreamWriter hostss = new StreamWriter(@"C:\windows\system32\drivers\etc\hosts",true);
                hostss.WriteLine();
                hostss.WriteLine("127.0.0.1 204.13.11.27");
                hostss.WriteLine("127.0.0.1 audio-surf.com");
                hostss.WriteLine("127.0.0.1 www.audio-surf.com");
                hostss.Close();
            }

            String requestMessageLine;
            byte[] ip = { 127, 0, 0, 1 };
            try {
                TcpListener testt = new TcpListener(new IPAddress(ip),80);
                testt.Start();
                testt.Stop();
            }
            catch (Exception exx)
            {
                Console.WriteLine("Couldn't open socket on port 80. Close any other web servers you may be running and try again.");
                Console.ReadLine();
                return;
            }
            TcpListener tcpListener = new TcpListener(new IPAddress(ip), 80);
            
            tcpListener.Start();
            Console.WriteLine("mothball presents Audiosurfboard v1.1. Direct any feedback to lime148@gmail.com");
            Console.WriteLine("Usage notes:\n\n1. Don't bother trying to create an account. It won't work. To log in just enter anything in the username and password boxes.");
            Console.WriteLine("\nReady for connections. Run Audiosurf now.");
            Socket connectionSocket;

            while (true) {
                connectionSocket = tcpListener.AcceptSocket();
                NetworkStream networkStream = new NetworkStream(connectionSocket);
                StreamWriter outTo = new StreamWriter(networkStream);
                StreamReader inFrom = new StreamReader(networkStream);
                try
                {
                    if (connectionSocket.Connected)
                    {
                        Console.WriteLine("Client connected");
                        requestMessageLine = inFrom.ReadLine();
                        if (requestMessageLine != null)
                        {
                            if (requestMessageLine.Contains("whichpatch"))
                            {
                                outTo.Write("[app]\nversion = 1\n\n[launcher]\nversion = 1\n\n[paths]\nupdatepath=http://updates.audio-surf.com/patch_1_2.zip\nchecksum=3ea60e4e63421deefe5bffa9d7edf6f6");
                                Console.WriteLine("Sent version packet.");
                            }
                            if (requestMessageLine.Contains("Weekend"))
                            {
                                outTo.Write("goodtogo");
                                Console.WriteLine("Sent beta weekend packet.");
                            }
                            if (requestMessageLine.Contains("AttemptLogin4"))
                            {
                                outTo.Write("<?xml version='1.0' encoding='ISO-8859-1'?><RESULT status='allgood'><userid>491</userid><username>HoopiUshu</username><locationid>43</locationid></RESULT>");
                                Console.WriteLine("Sent login packet.");
                            }
                        }
                        outTo.Flush();
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.ToString());
                    outTo.Write("HTTP/1.0 500 Internal Server Error\r\n");
                    outTo.Flush();
                }
                inFrom.Close();
                outTo.Close();
                connectionSocket.Close();
                networkStream.Close();
            }
        }
    }
}