using System;
using System.Text;

namespace Lskj.AgentBridge
{
    /// <summary>
    /// The bridge protocol is UTF-8 without replacement fallbacks. Silently
    /// normalizing malformed bytes or unmatched UTF-16 surrogates could change
    /// identifiers or business text after a caller calculated its binding.
    /// </summary>
    internal static class BridgeUtf8Codec
    {
        private static readonly Encoding StrictUtf8 =
            new UTF8Encoding(false, true);

        internal static string Decode(byte[] source)
        {
            if (source == null) throw new ArgumentNullException("source");
            return StrictUtf8.GetString(source);
        }

        internal static byte[] Encode(string source)
        {
            if (source == null) throw new ArgumentNullException("source");
            return StrictUtf8.GetBytes(source);
        }
    }
}