using Edge.Core.Parser.BinaryParser;
using Edge.Core.Parser.BinaryParser.MessageEntity;
using Edge.Core.Parser.BinaryParser.Util;
using System;
using System.Collections.Generic;
using System.Linq;

namespace HengShan_Pump_NonIC_Plus
{
    public class Parser : ParserBase
    {
        protected static NLog.Logger logger = NLog.LogManager.LoadConfiguration("nlog.config").GetLogger("Communicator");

        public Parser() : base(new MessageTemplateLookup())
        {
        }

        public override byte[] Serialize(MessageTemplateBase message)
        {
            List<byte> bytesWithXRL = null;
            try
            {
                bytesWithXRL = base.Serialize(message).ToList();
                if (message.GetType().GetProperty("XRL") != null)
                {
                    bytesWithXRL[bytesWithXRL.Count - 1] = ProcessXRLInMsgBody(bytesWithXRL);
                    ProcessXRLInMsgBody(bytesWithXRL);
                }

                return bytesWithXRL.ToArray();
            }
            catch (Exception exxx)
            {
                string logStr = message?.GetType().Name ?? "";
                if (message != null)
                    try { logStr += System.Environment.NewLine + message.ToLogString(); }
                    catch { }

                if (bytesWithXRL != null && bytesWithXRL.Any())
                    try { logStr += System.Environment.NewLine + bytesWithXRL.ToHexLogString(); }
                    catch { }

                logger.Info("Serialize HengShanNonIC message: " + logStr + System.Environment.NewLine
                    + " exceptioned, detail: " + exxx);
                throw;
            }
        }

        public override MessageTemplateBase Deserialize(byte[] rawData)
        {
            var pendingForXrlBytes = rawData.SkipLast(1).ToList();
            var xrlOri = rawData.Skip(pendingForXrlBytes.Count).First();
            var xrl = ProcessXRLInMsgBody(pendingForXrlBytes);

            return base.Deserialize(pendingForXrlBytes.ToArray());
        }

        private byte ProcessXRLInMsgBody(List<byte> bytesWithXRL)
        {
            var bytesUsedToComputeXRL = bytesWithXRL.GetRange(3, bytesWithXRL.Count - 3).ToArray();
            byte XRL = 0;
            foreach (var b in bytesUsedToComputeXRL)
            {
                XRL = (byte)(XRL ^ b);
            }
            if (XRL == 0x9F)
                XRL = 0xEE;
            return XRL;
        }
    }
}