EonaCat.Transfer/EonaCat.Transfer/Models/NetworkMessage.cs

namespace EonaCat.Transfer.Models
{
    public class NetworkMessage
    {
        public MessageType Type { get; set; }
        public byte[] Payload { get; set; }
        public string SessionId { get; set; }
        public DateTime Timestamp { get; set; }
        public long SequenceNumber { get; set; }

        public static byte[] Serialize(NetworkMessage msg)
        {
            using (var messageStream = new MemoryStream())
            using (var binaryWriter = new BinaryWriter(messageStream))
            {
                binaryWriter.Write((byte)msg.Type);
                binaryWriter.Write(msg.SequenceNumber);
                binaryWriter.Write(msg.Timestamp.ToBinary());
                binaryWriter.Write(msg.SessionId ?? string.Empty);
                binaryWriter.Write(msg.Payload?.Length ?? 0);
                if (msg.Payload != null)
                {
                    binaryWriter.Write(msg.Payload);
                }

                return messageStream.ToArray();
            }
        }

        public static NetworkMessage Deserialize(byte[] data)
        {
            using (var memoryStream = new MemoryStream(data))
            using (var binaryReader = new BinaryReader(memoryStream))
            {
                return new NetworkMessage
                {
                    Type = (MessageType)binaryReader.ReadByte(),
                    SequenceNumber = binaryReader.ReadInt64(),
                    Timestamp = DateTime.FromBinary(binaryReader.ReadInt64()),
                    SessionId = binaryReader.ReadString(),
                    Payload = binaryReader.ReadBytes(binaryReader.ReadInt32())
                };
            }
        }
    }
}