using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;

namespace OrpaonEMS.Model.MasterSlave
{
    /// <summary>
    /// EMS Client连接状态模型
    /// 发送和接受的状态必须是OK的才能运行，否则停机
    /// 连接的状态必须是OK才能运行，否则停机
    /// </summary>
    public class EMSClientConState:BindableBase
    {
        /// <summary>
        /// 声明委托对象-判定跟EMS连接失败时触发事件
        /// </summary>
        public event EventHandler<EMSConErrEventArgs> EMSClientConErrEventHandler;

        /// <summary>
        /// 周期读取定时器
        /// 周期发送到SignaIR Hub中
        /// </summary>
        private System.Timers.Timer? timer { get; set; }

        public EMSClientConState()
        {
            timer = new System.Timers.Timer(1000);
            timer.Elapsed -= CycleCheck;
            timer.Elapsed += CycleCheck;
            timer.AutoReset = true;
            timer.Enabled = true;
        }

        /// <summary>
        /// 循环判定连接状态
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        /// <exception cref="NotImplementedException"></exception>
        private void CycleCheck(object? sender, ElapsedEventArgs e)
        {
            timer.Enabled = false;

            //连接状态出错，立刻停止
            if (!ClientState)
            {
                Msg = "连接出现错误";
                ConResult = false;
                //EMSClientConErrEventHandler(this, new EMSConErrEventArgs() { Msg = "连接出现错误" });
                timer.Enabled = true;
                return;
            }

            if (ClientSendState == false || TimeIsOk(ClientSendTime) == false)
            {
                Msg = "发送数据出现错误";
                ConResult = false;
                //EMSClientConErrEventHandler(this, new EMSConErrEventArgs() { Msg = "发送数据出现错误" });
                timer.Enabled = true;
                return;
            }

            if (ClientRecvState == false || TimeIsOk(ClientRecvTime) == false)
            {
                Msg = "接受数据出现错误";
                ConResult = false;
                //EMSClientConErrEventHandler(this, new EMSConErrEventArgs() { Msg = "接受数据出现错误" });
                timer.Enabled = true;
                return;
            }

            Msg = "";
            ConResult = true;
            timer.Enabled = true;
        }

        /// <summary>
        /// 通信的消息
        /// </summary>
        private string Msg { get; set; }=string.Empty;

        private bool _ConResult = true;
        /// <summary>
        /// 整体的通信状态结果
        /// </summary>
        public bool ConResult
        {
            get { return _ConResult; }
            set
            {
                
                //if (_ConResult != value)//触发一次
                //{
                //    //暂时的逻辑不需要触发事件了，由外部的函数获取这个状态判断信息
                //    //EMSClientConErrEventHandler(this, new EMSConErrEventArgs() { Msg = Msg, Result = value });
                //    _ConResult = value;
                //}
                //Console.WriteLine($"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff")} -通信结果：{value}");
                _ConResult = value;
            }
        }



        private bool _ClientState;
        /// <summary>
        /// 通信连接状态
        /// 来自通信的事件触发方法
        /// </summary>
        public bool ClientState
        {
            get { return _ClientState; }
            set { _ClientState = value; }
        }


        private bool _ClientSendState;
        /// <summary>
        /// Client 发送数据的状态
        /// </summary>
        public bool ClientSendState
        {
            get { return _ClientSendState; }
            set
            {
                _ClientSendState = value;
                ClientSendTime = DateTime.Now;
                if (value)
                {
                    ClientSendStateMsg = "正常";
                }
                else
                {
                    ClientSendStateMsg = "失败";
                }
            }
        }
        /// <summary>
        /// 发送数据的时间
        /// </summary>
        private DateTime ClientSendTime { get; set; } = DateTime.Now;


        private string _ClientSendStateMsg;
        /// <summary>
        ///  Client 发送数据的状态 消息
        /// </summary>
        public string ClientSendStateMsg
        {
            get { return _ClientSendStateMsg; }
            set { _ClientSendStateMsg = value; RaisePropertyChanged(); }
        }


        private bool _ClientRecvState;
        /// <summary>
        /// Client 接受数据的状态
        /// </summary>
        public bool ClientRecvState
        {
            get { return _ClientRecvState; }
            set
            {
                _ClientRecvState = value;
                ClientRecvTime = DateTime.Now;
                if (value)
                {
                    ClientRecvStateMsg = "正常";
                }
                else
                {
                    ClientRecvStateMsg = "失败";
                }
            }
        }

        private string  _ClientRecvStateMsg;
        /// <summary>
        ///  Client 接受数据的状态 消息
        /// </summary>
        public string ClientRecvStateMsg
        {
            get { return _ClientRecvStateMsg; }
            set { _ClientRecvStateMsg = value; RaisePropertyChanged(); }
        }


        /// <summary>
        ///接受数据的时间
        /// </summary>
        private DateTime ClientRecvTime { get; set; } = DateTime.Now;

        /// <summary>
        /// 判断时间是否OK
        /// 基于现在的时间
        /// </summary>
        /// <returns></returns>
        private bool TimeIsOk(DateTime dateTime)
        {
            //大于1秒代表通信失败
            if ((DateTime.Now - dateTime).TotalSeconds > 1.5)
            {
                return false;
            }
            return true;
        }
    }
}