using System;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.IO.Compression;
using System.Diagnostics;

namespace TorInstallerApp
{
    public partial class Form1 : Form
    {
        static string bundle_url = "https://www.torproject.org/dist/torbrowser/10.0.18/tor-win32-0.4.5.9.zip";
        static string bundle_location = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) + "\\TorBundle";
        static string bundle_temp_dl_path = bundle_location + "/bundle.zip";


        static string tor_data = bundle_location + @"\Data\Tor";
        static string torrc_path = bundle_location + @"\Data\Tor\torrc";
        static string tor_geoip_path = bundle_location + @"\Data\Tor\geoip";
        static string tor_geoip6_path = bundle_location + @"\Data\Tor\geoip6";

        public static void ExecuteAsAdmin(string Filename, string FileArgs)
        {
            Process proc = new Process();
            proc.StartInfo.FileName = Filename;
            proc.StartInfo.Arguments = FileArgs;
            proc.StartInfo.Verb = "runas";
            proc.Start();
        }

        public static void DownloadandUnpack()
        {
            WebClient webClient = new WebClient();
            webClient.Proxy = null;
            webClient.DownloadFile(bundle_url, bundle_temp_dl_path);
            ZipFile.ExtractToDirectory(bundle_temp_dl_path, bundle_location);
        }

        public static void MakeTorConfig()
        {
            string text = "DataDirectory " + tor_data + "\n" + "GeoIPFile " + tor_geoip_path + "\n" + "GeoIPv6File " + tor_geoip6_path + "\n" + "AvoidDiskWrites 1\n" + "SocksPort 127.0.0.1:9160\n";
            File.WriteAllText(torrc_path, text);
        }

        public static void InstallasService()
        {
            ExecuteAsAdmin("sc.exe", "create TorBundle binPath= " + "\"" + bundle_location + "\\Tor\\tor.exe" + " --nt-service -f " + torrc_path + "\"" + " start= auto");
            ExecuteAsAdmin("sc.exe", "start TorBundle");
        }

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            if (Directory.Exists(bundle_location))
            {
                button1.Enabled = false;
            }
            else
            {
                button2.Enabled = false;
            }
        }

        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            System.Diagnostics.Process.Start("https://nova.ws");
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Directory.CreateDirectory(bundle_location);
            DownloadandUnpack();
            MakeTorConfig();
            InstallasService();
            MessageBox.Show("Setup is finished, you can close app.");
            button1.Enabled = false;
            button2.Enabled = true;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            ExecuteAsAdmin("sc.exe", "stop TorBundle");
            ExecuteAsAdmin("sc.exe", "delete TorBundle");
            Directory.Delete(bundle_location, true);
            MessageBox.Show("Delete TorBundle sucess, you can close app");
            button1.Enabled = true;
            button2.Enabled = false;
        }
    }

}