using System;
using Aitex.Core.RT.Device;
using Aitex.Core.RT.Event;
using Aitex.Core.RT.Log;
using Aitex.Core.RT.Routine;
using Aitex.Core.RT.SCCore;
using MECF.Framework.RT.EquipmentLibrary.HardwareUnits.LoadPorts;

namespace VirgoRT.Modules.LPs
{
    class LoadPortUnloadRoutine : ModuleRoutine, IRoutine
    {
        enum RoutineStep
        {
            Unload,
        }

        private int _timeout = 0;
 
        private LoadPortModule _lpModule;
        public LoadPortUnloadRoutine(LoadPortModule lpModule)
        {
            _lpModule = lpModule;
            Module = lpModule.Module;

            Name = "Unload";
 
        }

 
 
        public Result Start(params object[] objs)
        {
            Reset();

            _timeout = SC.GetValue<int>("EFEM.LoadPort.MotionTimeout");

            //if (!_lp.IsPresent || !_lp.IsPlacement)
            //{
            //    EV.PostWarningLog(Module, $"{Module} not found carrier, can not load");
            //    return Result.FAIL;
            //}

            Notify($"Start");

            return Result.RUN;
        }


        public Result Monitor()
        {
            try
            {
                Unload((int)RoutineStep.Unload, _timeout);
 
            }
            catch (RoutineBreakException)
            {
                return Result.RUN;
            }
            catch (RoutineFaildException  )
            {
                return Result.FAIL;
            }
  
            Notify("Finished");
            return Result.DONE;
        }

        public void Unload(int id, int timeout)
        {
            Tuple<bool, Result> ret = ExecuteAndWait(id, () =>
            {
                Notify($"Start Unload {_lpModule.Name}");

                _lpModule.LPDevice.Unload();

                return true;
            }, () =>
            {
                if (_lpModule.LPDevice.IsError)
                    return null;
                if (_lpModule.LPDevice.IsBusy)
                    return false;
                return true;
            }, timeout * 1000);

            if (ret.Item1)
            {
                if (ret.Item2 == Result.FAIL)
                {
                    Stop(string.Format("failed."));
                    throw (new RoutineFaildException());
                }
                else if (ret.Item2 == Result.TIMEOUT) //timeout
                {
                    Stop(string.Format("timeout, can not complete in {0} seconds", timeout));
                    throw (new RoutineFaildException());
                }
                else
                    throw (new RoutineBreakException());
            }
        }
        public void Abort()
        {
            
        }
 
    }
}