using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Aitex.Core.Util;
using Aitex.Core.RT.Event;
using Aitex.Core.RT.Log;

namespace Aitex.Core.RT.IOCore
{
        public class SafePlcInterlockChecker
        {
            public SafePlcInterlockChecker(DOAccessor doo,DIAccessor di)
            {
                _do = doo;
                _di = di;
                
                _timer.Start(1000);
            }

            private DOAccessor _do = null;
            private DIAccessor _di = null;

            DeviceTimer _timer = new DeviceTimer();

            R_TRIG _trigInterlock = new R_TRIG();

            private string Module = "IO";
            //检查安全逻辑是否被触发动作
            public void Monitor()
            {
                if (_do == null || _di == null)
                {
                    LOG.Warning(String.Format("SafePlcInterlockChecker do or di is null"));
                }
                else
                {
                    bool setpoint = _do.Value;
                    bool feedback = _di.Value;

                    if (setpoint == feedback)
                        _timer.Start(1000);

                    _trigInterlock.CLK = (setpoint != feedback) && _timer.IsTimeout();
                    if (_trigInterlock.Q)
                    {
                        //for DO and send alarm event
                        string reason = string.Format("DO-{0}({1})被强制{2}，原因是该数字量输出值不满足安全PLC的检查条件",
                                             _do.Index,
                                             _di.Name,
                                            setpoint ? "OFF" : "ON");
                        EV.PostMessage(Module, EventEnum.SafePlcInterlock, Module, reason);

                        _do.Value = feedback;
                    }
                }
            }
        }
}