// Decompiled with JetBrains decompiler
// Type: CrackMe.Program
// Assembly: CrackMe, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
// MVID: 7588AF36-84AD-43FF-9334-793E1CC1BF11
// Assembly location: C:\Users\Ian\Downloads\CrackMe.exe

using System;
using System.IO;

namespace CrackMe
{
  internal class Program
  {
    private static void Main(string[] args)
    {
      if (args.Length != 4)
      {
        Console.WriteLine("Incorrect arguments");
        Console.WriteLine("Usage: CrackMe.exe <input_file> <output_file> <user_pass_phrase> <mode>");
      }
      else
      {
        string path = args[0];
        string outputFile = args[1];
        string str1 = args[2];
        string str2 = args[3];
        if (!File.Exists(path))
        {
          Console.WriteLine("Input file doesn't exist");
        }
        else
        {
          CryptoOperation crypto = new CryptoOperation();
          crypto.FileName = path;
          crypto.UserPassword = str1;
          if (!(str2 == "encrypt"))
          {
            if (str2 == "decrypt")
            {
              Program.Decrypt(crypto, outputFile);
            }
            else
            {
              Console.WriteLine("Incorrect mode");
              Console.WriteLine("Use encrypt or decrypt");
            }
          }
          else
            Program.Encrypt(crypto, outputFile);
        }
      }
    }

    private static void Encrypt(CryptoOperation crypto, string outputFile)
    {
      crypto.ParseFileToEncrypt();
      byte[] buffer = crypto.EncryptFile();
      using (BinaryWriter binaryWriter = new BinaryWriter((Stream) File.Open(outputFile, FileMode.Create)))
      {
        binaryWriter.Write(crypto.IV);
        binaryWriter.Write(buffer);
      }
      Console.WriteLine("That's all.");
    }

    private static void Decrypt(CryptoOperation crypto, string outputFile)
    {
      crypto.ParseFileToDecrypt();
      byte[] buffer = crypto.DecryptFile();
      if (buffer == null)
        return;
      using (BinaryWriter binaryWriter = new BinaryWriter((Stream) File.Open(outputFile, FileMode.Create)))
        binaryWriter.Write(buffer);
      Console.WriteLine("That's all.");
    }
  }
}