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
{
    public class EMSServerConState: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> EMSServerConErrEventHandler;

        /// <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 EMSServerConState()
        {
            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 (!ServerState)
            {
                Msg = "连接出现错误";
                ConResult = false;
                //EMSServerConErrEventHandler(this, new EMSConErrEventArgs() { Msg = "连接出现错误" });
                timer.Enabled = true;
                return;
            }

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

            if (ServerRecvState == false || TimeIsOk(ServerRecvTime) == false)
            {
                Msg = "接受数据出现错误";
                ConResult = false;
                //EMSServerConErrEventHandler(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
                //    //EMSServerConErrEventHandler(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 _ServerState;
        /// <summary>
        /// 通信连接状态
        /// 来自通信的事件触发方法
        /// </summary>
        public bool ServerState
        {
            get { return _ServerState; }
            set { _ServerState = value; }
        }


        private bool _ServerSendState;
        /// <summary>
        /// Server 发送数据的状态
        /// </summary>
        public bool ServerSendState
        {
            get { return _ServerSendState; }
            set
            {
                _ServerSendState = value;
                ServerSendTime = DateTime.Now;
                if (value)
                {
                    ServerSendStateMsg = "正常";
                }
                else
                {
                    ServerSendStateMsg = "失败";
                }
            }
        }

        private string _ServerSendStateMsg = "失败";
        /// <summary>
        /// Server 发送数据的状态 消息
        /// </summary>
        public string ServerSendStateMsg
        {
            get { return _ServerSendStateMsg; }
            set { _ServerSendStateMsg = value;RaisePropertyChanged(); }
        }


        /// <summary>
        /// 发送数据的时间
        /// </summary>
        private DateTime ServerSendTime { get; set; } = DateTime.Now;


        private bool _ServerRecvState;
        /// <summary>
        /// Server 接受数据的状态
        /// </summary>
        public bool ServerRecvState
        {
            get { return _ServerRecvState; }
            set
            {
                _ServerRecvState = value;
                ServerRecvTime = DateTime.Now;
                if (value)
                {
                    ServerRecvStateMsg = "正常";
                }
                else
                {
                    ServerRecvStateMsg = "失败";
                }
            }
        }


        private string _ServerRecvStateMsg = "失败";
        /// <summary>
        ///  Server 接受数据的状态  消息
        /// </summary>
        public string ServerRecvStateMsg
        {
            get { return _ServerRecvStateMsg; }
            set { _ServerRecvStateMsg = value; RaisePropertyChanged(); }
        }

        /// <summary>
        ///接受数据的时间
        /// </summary>
        private DateTime ServerRecvTime { 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 > 2)
            {
                return false;
            }
            return true;
        }


    }
}