using log4net;
using Mina.Core.Buffer;
using Mina.Core.Session;
using Mina.Filter.Codec;
using Mina.Filter.Codec.Demux;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DM_Weight.Port
{
    internal class MyMinaDecoder : IMessageDecoder
    {
        private readonly ILog logger = LogManager.GetLogger(typeof(SocketHelper));
        public MessageDecoderResult Decodable(IoSession session, IoBuffer input)
        {
            logger.Info("Decodable");
            return MessageDecoderResult.OK;
        }

        public MessageDecoderResult Decode(IoSession session, IoBuffer input, IProtocolDecoderOutput output)
        {

            logger.Info("Decode");
            int length = input.Remaining;
            byte functionCode = input.Get(7);
            if (functionCode == 4)
            {

                int a = input.Get(length - 2);
                int b = input.Get(length - 1);
                int c = input.Get(length - 3);
                int d = input.Get(length - 4); logger.Info($"查状态收到返回a:{a};b:{b};c:{c};d:{d}");
                bool f = false;
                if (a > 0 || b > 0 || c > 0 || d > 0)
                {
                    f = true;
                }
                output.Write(f);
            }
            input.Position = length;
            return MessageDecoderResult.OK;
        }

        public void FinishDecode(IoSession session, IProtocolDecoderOutput output)
        {
        }
    }
}