SongCore-Fork/Arcache/Lz4ArchiveEntry.cs

using System.IO;
using System.Text;

namespace SongCore.Arcache
{
    public class Lz4ArchiveEntry
    {
        public string FileName { get; set; }
        public long OriginalSize { get; set; }
        internal long Offset { get; set; }
        internal long CompressedSize { get; set; }

        internal void WriteToIndex(Stream stream)
        {
            using var bw = new BinaryWriter(stream, Encoding.UTF8, true);

            var nameBytes = Encoding.UTF8.GetBytes(FileName);
            bw.Write((short)nameBytes.Length);
            bw.Write(nameBytes);

            bw.Write(Offset);
            bw.Write(CompressedSize);
            bw.Write(OriginalSize);
        }

        internal void ReadFromStream(Stream stream)
        {
            using var br = new BinaryReader(stream, Encoding.UTF8, true);

            var nameByteCount = br.ReadInt16();
            var nameBytes = br.ReadBytes(nameByteCount);
            FileName = Encoding.UTF8.GetString(nameBytes);

            Offset = br.ReadInt64();
            CompressedSize = br.ReadInt64();
            OriginalSize = br.ReadInt64();
        }
    }
}