using Google.Protobuf;
using Org.BouncyCastle.Crypto.Digests;
using System;
using System.Buffers.Binary;
using System.Security.Cryptography;

namespace FrostFS.SDK.Cryptography;

public static class Helper
{
    internal static byte[] RIPEMD160(this byte[] value)
    {
        var hash = new byte[20];
        var digest = new RipeMD160Digest();
        digest.BlockUpdate(value, 0, value.Length);
        digest.DoFinal(hash, 0);
        return hash;
    }

    public static byte[] Sha256(this byte[] value)
    {
        using var sha256 = SHA256.Create();
        return sha256.ComputeHash(value);
    }

    internal static byte[] Sha256(this byte[] value, int offset, int count)
    {
        using var sha256 = SHA256.Create();
        return sha256.ComputeHash(value, offset, count);
    }

    internal static byte[] Sha256(this ReadOnlySpan<byte> value)
    {
        using var sha256 = SHA256.Create();
        return sha256.ComputeHash(value.ToArray());
    }

    public static ByteString Sha256(this IMessage data)
    {
        return ByteString.CopyFrom(data.ToByteArray().Sha256());
    }

    public static ByteString Sha256(this ByteString data)
    {
        return ByteString.CopyFrom(data.ToByteArray().Sha256());
    }

   
    public static ulong Murmur64(this byte[] value, uint seed)
    {
        using var murmur = new Murmur3_128(seed);
        return BinaryPrimitives.ReadUInt64LittleEndian(murmur.ComputeHash(value));
    }
}