Untitled

using Boltun.PLC.Enums;
using DATABUILDERAXLibLB;
using System.Collections.Generic;

namespace Keyence.PLC.Models
{
    public class SimpleMonitorTrigger
    {
        public delegate void Triggered(DBPlcDevice type, string number);

        public event Triggered OnTriggered;

        private readonly DBTriggerManager _triggerMgr;
        private readonly DBCommManager _commMgr;

        private Dictionary<MonitorIndex, MonitorSite> _monitors { get; set; }

        public SimpleMonitorTrigger(DBCommManager commMgr)
        {
            _triggerMgr = new DBTriggerManagerClass();
            _triggerMgr.Fire += PlcTrigger;
            _commMgr = commMgr;
            _monitors = new Dictionary<MonitorIndex, MonitorSite>();
        }

        public void SetMonitor<TReg>(TReg reg, string number, MonitorRegMode mode)
        {
            var index = MonitorIndex.Construct(reg, number);

            lock (_monitors)
            {
                if (_monitors.TryGetValue(index, out var site))
                {
                    // exist, check monitor mode
                    if (site.MonitorMode != mode)
                    {
                        // if it's different, change it.
                        _triggerMgr.Triggers.Remove(site.Trigger);
                    }
                    else
                    {
                        // skip, if same
                        return;
                    }
                }
                // add trigger
                var trigger = _triggerMgr.Triggers.Add(DBAxTriggerType.ttDevice);
                var triggerDevice = trigger.AsDevice;

                triggerDevice.DeviceCondition = (int)mode;
                triggerDevice.DeviceKind = index.Type;
                triggerDevice.DeviceNo = number;
                triggerDevice.CommManager = _commMgr;

                _monitors[index] = new MonitorSite(trigger, mode);
            }
        }

        public void SwitchActive(bool active)
        {
            _triggerMgr.Active = active;
        }

        private void PlcTrigger(DBTrigger pTrigger)
        {
            var device = pTrigger.AsDevice;

            OnTriggered?.Invoke(device.DeviceKind, device.DeviceNo);
        }
    }
}