using DotNetty.Buffers;
using HybirdFrameworkCore.Utils;
using Service.Charger.Common;

namespace Service.Charger.Msg;

public class ASDU : APCI
{
    /// <summary>
    ///     帧类型号
    /// </summary>
    public byte FrameTypeNo { get; set; }

    /// <summary>
    ///     信息体个数
    /// </summary>
    public byte MsgBodyCount { get; set; }

    /// <summary>
    ///     传送原因-3.1.3.2
    /// </summary>
    public ushort TransReason { get; set; }

    /// <summary>
    ///     公共地址
    /// </summary>
    public ushort PublicAddr { get; set; }

    /// <summary>
    ///     信息体地址-3个字节
    /// </summary>
    public byte[]? MsgBodyAddr { get; set; }


    public override byte[] GetBytes()
    {
        var list = new List<byte>();
        list.Add(FrameTypeNo);
        list.Add(MsgBodyCount);
        list.AddRange(BitConverter.GetBytes(TransReason));
        list.AddRange(BitConverter.GetBytes(PublicAddr));
        list.AddRange(MsgBodyAddr);

        list.AddRange(ModelConvert.Encode(this));
        return list.ToArray();
    }


    public static void ParseHeader(IByteBuffer byteBuffer, ASDU asdu)
    {
        var start = ChargerConst.ApciStartChar.Length - 1;

        asdu.PackLen = byteBuffer.GetUnsignedShortLE(start + 1);
        asdu.CtlArea = byteBuffer.GetUnsignedInt(start + 3);
        asdu.DestAddr = new[]
        {
            byteBuffer.GetByte(start + 7),
            byteBuffer.GetByte(start + 8),
            byteBuffer.GetByte(start + 9),
            byteBuffer.GetByte(start + 10)
        };
        asdu.SrcAddr = byteBuffer.GetUnsignedInt(start + 11);
        asdu.FrameTypeNo = byteBuffer.GetByte(start + 15);
        asdu.MsgBodyCount = byteBuffer.GetByte(start + 16);
        asdu.TransReason = byteBuffer.GetUnsignedShortLE(start + 17);
        asdu.PublicAddr = byteBuffer.GetUnsignedShortLE(start + 19);
        asdu.MsgBodyAddr = new[]
        {
            byteBuffer.GetByte(start + 21),
            byteBuffer.GetByte(start + 22),
            byteBuffer.GetByte(start + 23)
        };
    }
}