using Rs.Motion;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;

namespace Rs.MotionPlat.Flow
{
    public enum ELightStatus
    {
        Red,
        Yellow,
        Green,
        YellowBlink,
    }
    public class LightManger
    {
        Timer timer;
        ELightStatus LightStatus = ELightStatus.YellowBlink;
        bool on = false;

        private LightManger() {
            timer = new Timer();
            timer.Interval = 1000;
            timer.Elapsed += Timer_Elapsed;
            timer.Enabled = true;
            IoManager.Instance.WriteOut("黄灯", 1);
            IoManager.Instance.WriteOut("红灯", 1);
            IoManager.Instance.WriteOut("绿灯", 1);
        }

        private static LightManger instance;
        public static LightManger Instance
        {
            get
            {
                if(instance == null)
                    instance = new LightManger();
                return instance;
            }
        }

        private void Timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            switch (LightStatus)
            {
                case ELightStatus.YellowBlink:
                    if(!on)
                    {
                        IoManager.Instance.WriteOut("黄灯", 0);
                        on = true;
                    }
                    else
                    {
                        IoManager.Instance.WriteOut("黄灯", 1);
                        on = false;
                    }
                    break;
                case ELightStatus.Red:
                    if (!on)
                    {
                        IoManager.Instance.WriteOut("黄灯", 1);
                        IoManager.Instance.WriteOut("红灯", 0);
                        IoManager.Instance.WriteOut("绿灯", 1);
                        on = true;
                    }
                    break;
                case ELightStatus.Yellow:
                    if (!on)
                    {
                        IoManager.Instance.WriteOut("黄灯", 0);
                        IoManager.Instance.WriteOut("红灯", 1);
                        IoManager.Instance.WriteOut("绿灯", 1);
                        on = true;
                    }
                    break;
                case ELightStatus.Green:
                    if (!on)
                    {
                        IoManager.Instance.WriteOut("黄灯", 1);
                        IoManager.Instance.WriteOut("红灯", 1);
                        IoManager.Instance.WriteOut("绿灯", 0);
                        on =true;
                    }
                    break;
            }
        }

        public void SetStatus(ELightStatus status)
        {
            LightStatus=status;
            on = false;
        }
    }
}