using System.Net.NetworkInformation;

namespace WCS.Core
{
    public class PLC : EntityEx<PLCInfo>
    {
        public bool Ping { get; private set; }

        public PLC(PLCInfo ent) : base(ent)
        {
            if (Configs.PLCAccessorCreater != null)
            {
                Accessor = Configs.PLCAccessorCreater.Create(ent);
            }
            else
                throw new Exception("Configs.PLCAccessorCreater未赋值");

            Task.Run(() =>
            {
                while (true)
                {
                    Ping = ping();
                    Task.Delay(1000);
                }
            });
        }

        public IPLCAccessor Accessor { get; private set; }

        private bool ping(int timeout = 100)
        {
            var p = new Ping();
            var res = p.Send(Entity.IP, timeout);
            return res.Status == IPStatus.Success;
            //return true;
        }
    }

    public interface IPLCAccessorCreater
    {
        IPLCAccessor Create(PLCInfo data);
    }

    public interface IPLCAccessor
    {
        void WriteBytes(ushort db, ushort address, byte[] data);

        byte[] ReadBytes(ushort db, ushort address, ushort length);
    }
}