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

namespace MECF.Framework.Common.Aitex.Core.RT.EMS
{
    /// <summary>
    /// 观察者：对某一参数进行观察记录，观察到参数达到阈值时，进行一系列动作
    /// </summary>
    public interface IObserver
    {
        #region Properties

        /// <summary>
        /// 观察者名称(要保证唯一性)
        /// </summary>
        string Name { get; set; }

        /// <summary>
        /// 观察者模组
        /// </summary>
        string Module { get; set; }

        /// <summary>
        /// 观察者序号
        /// </summary>
        int Index { get; set; }

        /// <summary>
        /// 描述
        /// </summary>
        string Description { get; set; }

        /// <summary>
        /// 是否使能
        /// </summary>
        bool Enable { get; set; }

        /// <summary>
        /// 是否超时
        /// </summary>
        bool IsTrigger { get; }

        /// <summary>
        /// 是否计时中
        /// </summary>
        bool IsProcessing { get; }

        /// <summary>
        /// 开始观察时间
        /// </summary>
        DateTime StartDate { get; }

        /// <summary>
        /// 记录值
        /// </summary>
        double Value { get; }

        /// <summary>
        /// 阈值
        /// </summary>
        double Threshold { get; }

        /// <summary>
        /// 触发时间
        /// </summary>
        DateTime? TrigDate { get; }

        /// <summary>
        /// 超时时间
        /// </summary>
        double TimeExceeded { get; }

        /// <summary>
        /// 超时单位
        /// </summary>
        TimeUnit TimeDisplayUnit { get; set; }

        /// <summary>
        /// 超出阈值量
        /// </summary>
        double ValueExceeded { get; }

        #endregion

        #region Methods

        /// <summary>
        /// 复位观察者
        /// </summary>
        /// <returns>操作结果</returns>
        bool Reset();

        /// <summary>
        /// 复位条件
        /// </summary>
        /// <returns></returns>
        bool CanReset();

        /// <summary>
        /// 监控运行
        /// </summary>
        void Monitor();

        /// <summary>
        /// 设置阈值
        /// </summary>
        /// <returns>操作结果</returns>
        bool SetThreshold(double threshold);

        /// <summary>
        /// 设置开始时间
        /// </summary>
        /// <param name="t">开始日期</param>
        /// <returns>操作结果</returns>
        bool SetStartDate(DateTime t);

        bool SetMaintain(string parentname, string name, int itemid, DateTime date);

        public Dictionary<string, List<MaintainerItem>> GetAllMaintainerItemsDic();

        public bool SetMaintainerItemEnable(string parentname, string name, int itemid, bool enable);

        public void AddMaintainerItem(string parentname, MaintainerItem item);

        public void RemoveMaintainerItem(string parentname, string itemname, int id);
        #endregion
    }
}