using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LinqPadCrack
{
    public class Helper
    {
        public static byte[] DecompressResource(string fileName)
        {
            byte[] array = new byte[65536];
            var r = File.OpenRead(fileName);
            var ms = new MemoryStream();
            using (var deflateStream = new DeflateStream(r, CompressionMode.Decompress))
            {
                for (; ; )
                {
                    int num = deflateStream.Read(array, 0, array.Length);
                    bool flag2 = num == 0;
                    if (flag2)
                    {
                        break;
                    }
                    ms.Write(array, 0, num);
                }
            }
            return ms.ToArray();
        }

        public static void CompressResourceAndSave(string fileName)
        {
            var directory = Path.GetDirectoryName(fileName);
            var name = Path.GetFileNameWithoutExtension(fileName)+".bin";
            using FileStream originalFileStream = File.Open(fileName, FileMode.Open);
            using FileStream compressedFileStream = File.Create(Path.Combine(directory,name));
            using var compressor = new DeflateStream(compressedFileStream, CompressionMode.Compress);
            originalFileStream.CopyTo(compressor);
            
        }

        public static void DecompressResourceAndSave(string fileName)
        {
            var bytes = DecompressResource(fileName);
            var directory = Path.GetDirectoryName(fileName);
            var name = Path.GetFileNameWithoutExtension(fileName)+".dll";
            File.WriteAllBytes(Path.Combine(directory!, name), bytes);
        }
    }
}