using System.Buffers;
using AyCode.Core.Serializers.Binaries;

namespace AyCode.Services.SignalRs;

/// <summary>
/// Project-specific binary protocol. Uses ArrayPool for byte[] arguments
/// when the target type is SignalData (client receive path optimization).
/// Register this in PluginNopStartup.cs and AcSignalRClientBase instead of AcBinaryHubProtocol.
/// </summary>
public class AyCodeBinaryHubProtocol : AcBinaryHubProtocol
{
    public AyCodeBinaryHubProtocol() { }
    public AyCodeBinaryHubProtocol(AcBinarySerializerOptions options) : base(options) { }

    protected override object CreateByteArrayResult(ReadOnlySpan<byte> data, Type targetType)
    {
        if (targetType == typeof(SignalData))
        {
            var rented = ArrayPool<byte>.Shared.Rent(data.Length);
            data.CopyTo(rented);
            return new SignalData(rented, data.Length, isRented: true);
        }

        return base.CreateByteArrayResult(data, targetType);
    }
}