using LB_VisionControl;
using LB_VisionProcesses.BarcodeReaders;
using LB_VisionProcesses.BarcodeReaders.Huayray;
using System;
using System.Collections.Concurrent;
using System.Windows.Forms;

namespace LB_SmartVision.Forms.Pages.BarcodeReaderPage
{
    public partial class BarcodeReadersEditPage : UserControl
    {
        public Action<string, LogInfoType> LogInfo;


        public BarcodeReadersEditPage()
        {
            InitializeComponent();

            Name = "BarcodeReadersEditPage";
            Text = "读码器设置";
        }

        private void BarcodeReadersEditPage_Paint(object sender, PaintEventArgs e)
        {
            uiFlowLayoutPanel1.Controls.Clear();

            if (GlobalVar.dicBarcodeReaders.Count <= 0)
                return;

            foreach (var item in GlobalVar.dicBarcodeReaders)
            {
                string ReaderSN = item.Key;
                string ReaderBrand = item.Value.Brand.ToString();

                if (string.IsNullOrEmpty(ReaderSN) || string.IsNullOrEmpty(ReaderBrand))
                    continue;

                UserItem flow = new UserItem(new string[] { "测试", "刷新", "移除" });
                flow.Name = ReaderSN;
                flow.Text = $"[{ReaderBrand}] {ReaderSN}";
                if (item.Value.IsConnected)
                    flow.state = State.Pass;
                else
                    flow.state = State.Error;
                LoadFlowEvent(flow);

                uiFlowLayoutPanel1.Controls.Add(flow);
            }
        }


        private void uiButton1_Click(object sender, System.EventArgs e)
        {
            CreateBarcodeReaderForm createForm = new CreateBarcodeReaderForm();
            createForm.ShowDialog();

            if (createForm.bCreate)
            {
                BarcodeReaderBase reader = createForm.barcodeReader;
                if (GlobalVar.dicBarcodeReaders.ContainsKey(reader.SN))
                {
                    MessageBox.Show($"读码器[{reader.SN}]已存在!", "异常");
                    return;
                }

                string ReaderSN = reader.SN;
                string ReaderBrand = reader.Brand.ToString();

                if (string.IsNullOrEmpty(ReaderSN) || string.IsNullOrEmpty(ReaderBrand))
                    return;

                GlobalVar.dicBarcodeReaders.TryAdd(ReaderSN, reader);
                LogInfo?.Invoke(string.Format("添加读码器[{0}][{1}]成功", ReaderBrand, ReaderSN), LogInfoType.PASS);
            }
            this.Invalidate();
        }

        private void uiButton2_Click(object sender, System.EventArgs e)
        {
            //清除用Clear方法
            uiFlowLayoutPanel1.Controls.Clear();
            foreach (var reader in GlobalVar.dicBarcodeReaders.Values)
            {
                reader.Dispose();
            }
            GlobalVar.dicBarcodeReaders.Clear();
        }

        private void LoadFlowEvent(UserItem flow)
        {
            //按键1为测试
            flow.MenuItem1ClickedEvent += TestEvent;
            //按键2为刷新
            flow.MenuItem2ClickedEvent += ReconnectEvent;
            //按键3为移除
            flow.MenuItem3ClickedEvent += DeleteEvent;
        }

        private void RemoveFlowEvent(UserItem flow)
        {
            //按键1为测试
            flow.MenuItem1ClickedEvent -= TestEvent;
            //按键2为刷新
            flow.MenuItem2ClickedEvent -= ReconnectEvent;
            //按键3为移除
            flow.MenuItem3ClickedEvent -= DeleteEvent;
        }

        // 测试读码器
        private void TestEvent(string Name, string Text)
        {
            for (int i = 0; i < uiFlowLayoutPanel1.Controls.Count; i++)
            {
                UserItem flow = (UserItem)uiFlowLayoutPanel1.Controls[i];
                string name = flow.Name;
                if (name != Name)
                    continue;

                if (GlobalVar.dicBarcodeReaders.ContainsKey(name))
                {
                    BarcodeReaderForm readerForm = new BarcodeReaderForm(GlobalVar.dicBarcodeReaders[name]);
                    readerForm.Show();
                }
            }
        }

        // 移除读码器
        private void DeleteEvent(string Name, string Text)
        {
            for (int i = 0; i < uiFlowLayoutPanel1.Controls.Count; i++)
            {
                UserItem flow = (UserItem)uiFlowLayoutPanel1.Controls[i];
                string name = flow.Name;
                if (name != Name)
                    continue;

                RemoveFlowEvent(flow);
                uiFlowLayoutPanel1.Controls.Remove(uiFlowLayoutPanel1.Controls[i]);
                if (GlobalVar.dicBarcodeReaders.TryRemove(name, out BarcodeReaderBase barcodeReader))
                {
                    barcodeReader.Dispose();
                    LogInfo?.Invoke(string.Format("移除读码器[{0}]", name), LogInfoType.INFO);
                }
                else
                    LogInfo?.Invoke(string.Format("移除读码器[{0}]失败", name), LogInfoType.ERROR);

            }
        }

        // 重连读码器
        private void ReconnectEvent(string Name, string Text)
        {
            for (int i = 0; i < uiFlowLayoutPanel1.Controls.Count; i++)
            {
                UserItem flow = (UserItem)uiFlowLayoutPanel1.Controls[i];
                string name = flow.Name;
                if (name != Name)
                    continue;

                if (!GlobalVar.dicBarcodeReaders.ContainsKey(name))
                {
                    LogInfo?.Invoke(string.Format("读码器[{0}]不存在", name), LogInfoType.ERROR);
                    flow.state = State.Error;
                    flow.Refresh();
                    return;
                }

                var reader = GlobalVar.dicBarcodeReaders[name];
                if (reader == null)
                {
                    LogInfo?.Invoke(string.Format("读码器[{0}]实例为空", name), LogInfoType.ERROR);
                    flow.state = State.Error;
                    flow.Refresh();
                    return;
                }

                try
                {
                    // 先释放旧实例的资源
                    reader.Dispose();

                    // 添加短暂延迟，确保SDK底层资源完全释放
                    System.Threading.Thread.Sleep(500);

                    // 强制垃圾回收，确保相机对象被完全释放
                    GC.Collect();
                    GC.WaitForPendingFinalizers();
                    GC.Collect();

                    // 从字典中移除旧实例
                    GlobalVar.dicBarcodeReaders.TryRemove(name, out _);

                    // 创建新实例
                    BarcodeReaderBase newReader = null;
                    switch (reader.Brand)
                    {
                        case BarcodeReaderBrand.Huayray:
                            newReader = new HRBarcodeReader();
                            break;
                        default:
                            throw new Exception($"不支持的读码器品牌: {reader.Brand}");
                    }

                    if (newReader.Open(name))
                    {
                        // 添加到字典
                        GlobalVar.dicBarcodeReaders.TryAdd(name, newReader);
                        flow.state = State.Pass;
                        LogInfo?.Invoke(string.Format("重连读码器[{0}]成功", name), LogInfoType.PASS);
                    }
                    else
                    {
                        flow.state = State.Error;
                        LogInfo?.Invoke(string.Format("读码器[{0}]重新创建后仍连接失败", name), LogInfoType.ERROR);
                    }
                }
                catch (Exception ex)
                {
                    flow.state = State.Error;
                    LogInfo?.Invoke(string.Format("重连读码器[{0}]异常: {1}", name, ex.Message), LogInfoType.ERROR);
                }
                flow.Refresh();
            }
        }
    }
}