using Opc.Ua;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Threading.Tasks;

namespace AuroraLaser.Trumpf
{
    public partial class LaserTruFiber
    {
        // Slot No 3번이 아닌지..
        private string Header = "ns=2;s=Activation.MPI-Slot03.Input.";

        // Write할 WriteNode를 검색.
        private Dictionary<string, WriteValue> values = new Dictionary<string, WriteValue>();

        private RequestHeader octRequest = new RequestHeader();
        private WriteValueCollection octNodes = new WriteValueCollection();

        private uint ExceptionEmptyNodes = 10001;

        // 예제를 위한 명시적 호출 필요
        public void SetHeader(string header) {
            if (string.IsNullOrEmpty(header))
                return;

            Header = header;
        }
        public void ClearRegist()
        {
            values.Clear();
            octNodes.Clear();
        }

        public bool WriteIW(string IW, double position)
        {
            if(values.ContainsKey(IW)){
                values[IW].Value.WrappedValue = position;
                return true;
            }
            return false;
        }

        public void SendOCT()
        {
            if(octNodes.Count() <= 0)
                throw ServiceResultException.Create(ExceptionEmptyNodes, "Parameter가 등록되지 않음");

            // read the attributes.
            StatusCodeCollection results = null;
            DiagnosticInfoCollection diagnosticInfos = null;

            lock (sessionLock) {
                ResponseHeader responseHeader = _session.Write(octRequest, octNodes, out results, out diagnosticInfos);

                // 밑에 부분은 lock에서 빼보고 싶음..
                ClientBase.ValidateResponse(results, octNodes);
                ClientBase.ValidateDiagnosticInfos(diagnosticInfos, octNodes);

                // check status.
                if (StatusCode.IsBad(results[0])) {
                    // embed the diagnostic information in a exception.
                    throw ServiceResultException.Create(results[0], 0, diagnosticInfos, responseHeader.StringTable);
                }
            }
        }
        public void RegistParameter(string nodeName)
        {
            string fullName = Header + nodeName;
            try {
                NodeId nodeId = new NodeId(fullName);
                octRequest.ReturnDiagnostics = (uint)DiagnosticsMasks.All;
                // cast the value to a string.
                //object value = TypeInfo.Cast(ValueTB.Text, TypeInfo.Scalars.String, m_sourceType.BuiltInType);

                // build list of attributes to read.

                WriteValue nodeToWrite = new WriteValue();
                nodeToWrite.NodeId = nodeId;
                nodeToWrite.AttributeId = Attributes.Value;

                // using the WrappedValue instead of the Value property because we know the TypeInfo.
                // this makes the assignment more efficient by avoiding reflection to determine type.
                //nodeToWrite.Value.WrappedValue = new Variant(value, m_sourceType);

                octNodes.Add(nodeToWrite);

                values.Add(nodeName, nodeToWrite);

            } catch (Exception ex) {
                throw ex;
            }
        }
    }
}