using System;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading;
using LeatherApp.Utils;
using Models;
using OpenCvSharp;
using OpenCvSharp.Extensions;

namespace LeatherApp.Device
{
    public class PhotoLib : IDisposable
    {
        public Action<int> QueueCountEvent;//0/1/2, 数量
        public Action<DateTime,WarningEnum, string> WarningEvent;
        /// <summary>
        /// 结果 
        /// </summary>
        public Action<PhotoTask> finishEvent;
        /// <summary>
        /// 是否打开设备成功
        /// </summary>
        public bool IsInit { get; private set; } = false;

        private Thread t_task1;
        private List<PhotoTask> lstTask1 = new List<PhotoTask>();

        //private Thread t_task2;
        //private List<DefectTask> lstTask2 = new List<DefectTask>();
        public PhotoLib()
        {
        } 
        public bool start()
        {
            try
            { 
                IsInit = true;
                lstTask1.Clear();

                t_task1 = new System.Threading.Thread(run1);
                t_task1.IsBackground = true;
                t_task1.Start();

                //t_task_operation = new System.Threading.Thread(run2);
                //t_task_operation.IsBackground = true;
                //t_task_operation.Start();

                return true;
            }
            catch (Exception ex)
            {
                WarningEvent?.Invoke(DateTime.Now,WarningEnum.High, ex.Message);
                return false;
            }
        }
        public void stop()
        {
            if (!IsInit) return;

            try
            {
                IsInit = false;
                //timer.Elapsed -= Timer_Elapsed; 
                if (t_task1 != null)
                {
                    bool b = t_task1.Join(5000);
                    if (!b) t_task1.Abort();
                    t_task1 = null;
                }

                //if (t_task_operation != null)
                //{
                //    bool b = t_task_operation.Join(5000);
                //    if (!b) t_task_operation.Abort();
                //    t_task_operation = null;
                //} 
                lstTask1.Clear();
                //lstTask2.Clear(); 
            }
            catch { }
        }
 
        //推理+打标
        private void run1()
        { 
            while (IsInit)
            {
                if (lstTask1.Count < 1)
                {
                    Thread.Sleep(0);
                    continue;
                } 
               
                //
                var task = pop(); 
                //try
                //{
                    if (task != null)
                    {
                        task.finishEvent(task);
                    }
                //}
                //catch (Exception ex)
                //{
                //    WarningEvent?.Invoke(DateTime.Now,WarningEnum.Low, $"DefectLib task2 err({liStep}):" + ex.Message);
                //    task.isSucceed = false;
                //    task.resultInfo = ex.Message;
                //    callback(task);
                //} 
            }
        }
        private void callback(PhotoTask task)
        {
            //返回成功/失败,异步调用 
            if (task.finishEvent != null || (task.finishEvent = finishEvent) != null)
                //task.finishEvent.BeginInvoke(result, errInfo, res => task.finishEvent.EndInvoke(res), null);
                System.Threading.ThreadPool.QueueUserWorkItem(waitCallback, task);
        }
        //异步回调
        WaitCallback waitCallback = new WaitCallback(o =>
        {
            var task = (PhotoTask)o;
            task.finishEvent(task);
        });
 
        public class PhotoTask
        {
            public Records record;
            public object scanPhotos0; 
            public object scanPhotos1;
           

            //
            /// <summary>
            /// 完成后回调 
            /// </summary>
            public Action<PhotoTask> finishEvent;
            //==结果返回    
            //public bool isSucceed;//转换是否成功
            //public string resultInfo = "";//成功或失败信息 

            //public long[] stopwatch = new long[5];
        }

        public void add(PhotoTask task)
        {
            lock (lstTask1)
            {
                lstTask1.Add(task); 
                QueueCountEvent?.BeginInvoke(lstTask1.Count, null, null);
            }
        }


        private PhotoTask pop()
        {
            lock (lstTask1)
            {
                if (lstTask1.Count < 1)
                    return null;
 
                var task = lstTask1[0];
                lstTask1.RemoveAt(0);
                QueueCountEvent?.BeginInvoke(lstTask1.Count, null, null);
                return task;
            }
        } 


        public void Dispose()
        {
            stop();
        }
    }
}