using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.PMR;
using Tango.PMR.Common;

namespace Tango.Transport.Encoders
{
    /// <summary>
    /// Represents a protobuf <see cref="ITransportEncoder">Transport Encoder</see>.
    /// </summary>
    /// <seealso cref="Tango.Transport.ITransportEncoder" />
    public class ProtoEncoder : ITransportEncoder
    {
        /// <summary>
        /// Decodes the specified data.
        /// </summary>
        /// <param name="data">The data.</param>
        /// <returns></returns>
        public ITangoMessage Decode(byte[] data)
        {
            return MessageFactory.ParseTangoMessageAgnostic(data);
        }

        /// <summary>
        /// Decodes only the container part of the message.
        /// </summary>
        /// <param name="data">The data.</param>
        /// <returns></returns>
        public MessageContainer DecodeContainer(byte[] data)
        {
            return MessageFactory.ParseContainer(data);
        }

        /// <summary>
        /// Encodes the specified tango message.
        /// </summary>
        /// <param name="tangoMessage">The tango message.</param>
        /// <returns></returns>
        public byte[] Encode(ITangoMessage tangoMessage)
        {
            return tangoMessage.ToBytes();
        }

        /// <summary>
        /// Returns a <see cref="System.String" /> that represents this instance.
        /// </summary>
        /// <returns>
        /// A <see cref="System.String" /> that represents this instance.
        /// </returns>
        public override string ToString()
        {
            return "Protobuf Encoder";
        }
    }
}