using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using MECF.Framework.Common.Equipment;
using VirgoRT.Scheduler;
using Aitex.Core.Util;
using Aitex.Core.RT.Fsm;
using Aitex.Sorter.Common;


namespace VirgoRT.Modules.Schedulers
{
    public class SchedulerFlipper : SchedulerModule
    {
        private EfemEntity _entity = null;
        private int _entityTaskToken = (int)FSM_MSG.NONE;
        public override bool IsAvailable
        {
            get
            {
                return _entity.IsIdle && /*_entity.IsOnline && */CheckTaskDone();
            }
        }
        public SchedulerFlipper(ModuleName flipper) : base(flipper.ToString())
        {
            _task = TaskType.None;
            _entity = Singleton<RouteManager>.Instance.EFEM;
            EventWaferArrived += WaferArrived;
        }
        private void WaferArrived(object sender, EventArgs e)
        {
            var eArgs = e as WaferMoveArgs;
            WaferArriveTicks[eArgs.DstSlot] = DateTime.Now.Ticks;

            Flip("AlwaysReverse");
        }

        public void Flip(string orient)
        {
            _entityTaskToken = _entity.InvokeFlip(orient);
            if (_entityTaskToken != (int)FSM_MSG.NONE)
                _task = TaskType.Flip;
        }

        private bool CheckTaskDone()
        {
            bool ret = false;
            switch (_task)
            {
                case TaskType.Flip:
                    ret = _entity.CheckAcked(_entityTaskToken) && _entity.IsIdle;
                    break;
                case TaskType.None:
                    ret = true;
                    break;
            }

            if (ret && _task != TaskType.None) _task = TaskType.None;

            return ret;
        }
    }
}