using BPASmartClient.CustomResource.Pages.ViewModel;
using BPASmartClient.Helper;
using BPASmartClient.Model;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Reflection;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;

namespace BPASmartClient.CustomResource.Pages.Model
{
    public class AlarmTest<AlarmT> where AlarmT : class, new()
    {


        private volatile static ConcurrentDictionary<string, AlarmT> _Instance;
        public static AlarmT GetInstance(string name = "")
        {
            if (string.IsNullOrEmpty(name)) name = typeof(AlarmT).Name;
            if (_Instance == null) _Instance = new ConcurrentDictionary<string, AlarmT>();
            if (!_Instance.ContainsKey(name)) _Instance.TryAdd(name, new AlarmT());
            return _Instance[name];
        }
        private AlarmTest() { }


        public static ObservableCollection<Alarm> Alarms { get; set; } = new ObservableCollection<Alarm>();
        public static List<Alarm> HistoryAlarms { get; set; } = new List<Alarm>();
        static ConcurrentDictionary<string, bool> flagbit = new ConcurrentDictionary<string, bool>();
        static ConcurrentDictionary<string, Delay> delays = new ConcurrentDictionary<string, Delay>();
        public static Action<string> AddAction { get; set; }
        public static Action<string> RemoveAction { get; set; }
        public static Action ChangeAction { get; set; }

        //public static AlarmT Alarm { get; set; } = new AlarmT();

        public static void Init()
        {
            AlarmViewModel.AlarmInfos = Alarms;
            ThreadManage.GetInstance().StartLong(new Action(() =>
            {
                if (_Instance != null)
                {
                    foreach (var temp in _Instance)
                    {
                        foreach (var item in temp.Value.GetType().GetProperties())
                        {
                            if (item.CustomAttributes.Count() > 0)
                            {
                                var AlarmModel = item.GetCustomAttribute<AlarmAttribute>();
                                if (AlarmModel != null)
                                {
                                    bool value = Convert.ToBoolean(_Instance[temp.Key].GetType().GetProperty(item.Name)?.GetValue(_Instance[temp.Key]));
                                    EdgeAlarm(value, $"{temp.Key}:{AlarmModel.AlarmInfo}", 1, AlarmModel.AlarmLevel, AlarmModel.AlarmType);
                                }
                            }
                        }
                    }
                }
                Thread.Sleep(100);
            }), $"{typeof(AlarmT).Name},报警通用模块监听");

        }

        /// <summary>
        /// 沿报警检测
        /// </summary>
        /// <param name="Trigger">触发变量</param>
        /// <param name="text">报警信息</param>
        /// <param name="edgeType">触发类型，上升沿 或 下降沿</param>
        private static void EdgeAlarm(bool Trigger, string text, int delay = 2, AlarmLevel alarmLevel = AlarmLevel.一般报警, AlarmTriggerType edgeType = AlarmTriggerType.Rising)
        {
            if (!flagbit.ContainsKey(text)) flagbit.TryAdd(text, false);
            if (!delays.ContainsKey(text)) delays.TryAdd(text, Delay.GetInstance(text));
            if (edgeType == AlarmTriggerType.Rising ? delays[text].Start(Trigger, delay) : delays[text].Start(!Trigger, delay))
            {
                if (edgeType == AlarmTriggerType.Rising ? !flagbit[text] : flagbit[text])
                {
                    AddAlarm(Trigger, text, alarmLevel);
                    flagbit[text] = edgeType == AlarmTriggerType.Rising ? true : false;
                }
            }
            else RemoveAlarm(text);
            if (edgeType == AlarmTriggerType.Rising ? flagbit[text] : !flagbit[text]) flagbit[text] = Trigger;
        }

        /// <summary>
        /// 添加报警信息
        /// </summary>
        /// <param name="AlarmInfo">报警信息</param>
        private static void AddAlarm(object value, string AlarmInfo, AlarmLevel alarmLevel)
        {
            Alarm tempAlarm = new Alarm()
            {
                NumId = Alarms.Count + 1,
                Date = DateTime.Now.ToString("yyyy/MM/dd"),
                Grade = alarmLevel.ToString(),
                Info = AlarmInfo,
                Value = value.ToString(),
                Time = DateTime.Now.ToString("HH:mm:ss"),
            };

            var res = Sqlite<Alarm>.GetInstance.Base.Add(tempAlarm);
            Sqlite<Alarm>.GetInstance.Save();

            if (Alarms.FirstOrDefault(p => p.Info == AlarmInfo) == null)
            {
                Application.Current.Dispatcher.Invoke(new Action(() =>
                {
                    Alarms.Insert(0, tempAlarm);
                    for (int i = 0; i < Alarms.Count; i++) { Alarms.ElementAt(i).NumId = i + 1; }
                }));

                AddAction?.Invoke(AlarmInfo);//添加报警通知
                ChangeAction?.Invoke();//更改报警通知
            }
        }

        /// <summary>
        /// 移除报警信息
        /// </summary>
        /// <param name="AlarmInfo">报警信息</param>
        private static void RemoveAlarm(string AlarmInfo)
        {
            var result = Alarms.FirstOrDefault(p => p.Info == AlarmInfo);
            if (result != null)
            {
                Application.Current.Dispatcher.Invoke(new Action(() =>
                {
                    Alarms.Remove(result);
                    for (int i = 0; i < Alarms.Count; i++) { Alarms.ElementAt(i).NumId = i + 1; }
                }));

                if (RemoveAction != null) RemoveAction(AlarmInfo);
                if (ChangeAction != null) ChangeAction();
            }
        }

    }

}