using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NX_CommonClassLibrary;
using NX_LogClassLibrary;
using NX_ModelClassLibrary.BaseModel;
using NX_ModelClassLibrary.CustomEnum;
using NX_ModelClassLibrary.CustomEvent;
using NX_ModelClassLibrary.OpcModel;
using NX_WcsDal.CommonBusiness;
using Opc.Ua;
using Opc.Ua.Client;
using Opc.Ua.Configuration;
using OpcUaHelper;

namespace NX_OpcUaClientLibrary
{
    /// <summary>
    /// OpcUa客户端帮助类 
    /// 基于OPC基金会开源的.net版本OPCUA客户端项目的二次封装
    /// Copyright20210125 (C) sunyalong
    /// 允许修改、添加满足自己项目的需要。
    /// 添加、修改后请详细注释。违者会强制删除不予采用。
    /// </summary>
    public class LeadOpcUaClientHelper
    {

        #region 单例模式
        /// <summary>
        /// 单例模式对象
        /// </summary>
        private static LeadOpcUaClientHelper _instance = null;
        private static readonly object lockObj = new object();
        /// <summary>
        /// 单例模式方法
        /// </summary>
        public static LeadOpcUaClientHelper Instance
        {
            get
            {
                if (_instance == null)
                {
                    lock (lockObj)
                    {
                        if (_instance == null)
                        {
                            _instance = new LeadOpcUaClientHelper();
                        }
                    }
                }
                return _instance;
            }
        }
        #endregion

        #region 全局变量
        /// <summary>
        /// 日志显示帮助类对象
        /// </summary>
        public ShowLogToFrmHelper showLogToFrm = new ShowLogToFrmHelper();
        /// <summary>
        /// 日志头部
        /// </summary>
        private readonly string LogHeadText = "OpcUa客户端帮助类 ==>> ";
        /// <summary>
        /// OPCUA客户端列表
        /// </summary>
        private ConcurrentDictionary<BasWcsPlcMd, OpcUaClient> opcUaClientLst = new ConcurrentDictionary<BasWcsPlcMd, OpcUaClient>();
        /// <summary>
        /// 所有设备OPCItem变量信息列表
        /// </summary>
        public List<WcsOpcItemMd> allOpcItemList;

        #region 2021 0602 孙亚龙注释掉旧版代码
        ///// <summary>
        ///// 堆垛机OpcUa客户端
        ///// </summary>
        //private OpcUaClient crn_OpcUaClient;
        ///// <summary>
        ///// 输送线OpcUa客户端
        ///// </summary>
        //private OpcUaClient tran_OpcUaClient;
        ///// <summary>
        ///// 堆垛机OPC UA服务器地址
        ///// </summary>
        //private readonly string CrnOpcUaServerIpAddress = AppConfigHelper.Get("CrnOpcUaServerIpAddress");
        ///// <summary>
        ///// 输送线OPC UA服务器地址
        ///// </summary>
        //private readonly string TranOpcUaServerIpAddress = AppConfigHelper.Get("TranOpcUaServerIpAddress");
        ///// <summary>
        ///// 堆垛机OPC UA服务器连接状态
        ///// </summary>
        //private bool CrnOpcUaServerConnStatus = false;
        ///// <summary>
        ///// 输送线OPC UA服务器连接状态
        ///// </summary>
        //private bool TranOpcUaServerConnStatus = false;
        #endregion 2021 0602 孙亚龙注释掉旧版代码

        #endregion

        /// <summary>
        /// 连接所有PLC的OPCUa服务器，并设置PLC的OPCItem变量为订阅模式。
        /// </summary>
        /// <param name="basWcsPlcMdList">WCS涉及的所有PLC信息列表</param>
        /// <returns></returns>
        public bool ConnAllOpcUaServer(List<BasWcsPlcMd> basWcsPlcMdList)
        {
            try
            {
                foreach (BasWcsPlcMd item in basWcsPlcMdList)
                {
                    if (opcUaClientLst.TryAdd(item, new OpcUaClient { UserIdentity = new UserIdentity("Administrator", "123456") }))
                    {
                        opcUaClientLst[item].ConnectServer(item.IpAddr);
                        ShowLogToForm($"OpcUa客户端连接OpcUa服务器成功！IP地址：【{item.IpAddr}】", true, LogTypeEnum.Run);
                    }
                }
                foreach (var item in opcUaClientLst)
                {
                    string[] MonitorNodeTagArr = allOpcItemList.FindAll(x => x.PlcCode == item.Key.PlcCode).Select(x => x.OpcItemPos).ToArray();
                    item.Value.AddSubscription(item.Key.PlcCode, MonitorNodeTagArr, SubCallback);
                    ShowLogToForm($"OpcUa客户端设置OpcItem订阅模式成功！IP地址：【{item.Key.IpAddr}】", true, LogTypeEnum.Run);
                }
                return true;
            }
            catch (Exception ex)
            {
                ShowLogToForm($"OpcUa客户端连接OpcUa服务器发生异常：【{ex.Message}】！", true, LogTypeEnum.Err);
                return false;
            }
        }

        #region  2021 0602 孙亚龙注释掉旧版代码
        //public async Task<bool> ConnCrnOpcUaServer()
        //{
        //    try
        //    {
        //        crn_OpcUaClient = new OpcUaClient
        //        {
        //            UserIdentity = new UserIdentity("Administrator", "123456")
        //        };
        //        await crn_OpcUaClient.ConnectServer(CrnOpcUaServerIpAddress);
        //        ShowLogToForm($"堆垛机OpcUa客户端连接Opc服务器成功！IP地址：【{CrnOpcUaServerIpAddress}】", true, LogTypeEnum.Run);
        //        CrnOpcUaServerConnStatus = true;
        //        return true;
        //    }
        //    catch (Exception ex)
        //    {
        //        ShowLogToForm($"堆垛机OpcUa客户端连接Opc服务器发生异常：【{ex.Message}】！IP地址：【{CrnOpcUaServerIpAddress}】", true, LogTypeEnum.Err);
        //        CrnOpcUaServerConnStatus = false;
        //        return false;
        //    }
        //}
        //public async Task<bool> ConnTranOpcUaServer()
        //{
        //    try
        //    {
        //        tran_OpcUaClient = new OpcUaClient
        //        {
        //            UserIdentity = new UserIdentity("Administrator", "123456")
        //        };
        //        await tran_OpcUaClient.ConnectServer(TranOpcUaServerIpAddress);
        //        ShowLogToForm($"输送线OpcUa客户端连接Opc服务器成功！IP地址：【{TranOpcUaServerIpAddress}】", true, LogTypeEnum.Run);
        //        TranOpcUaServerConnStatus = true;
        //        return true;
        //    }
        //    catch (Exception ex)
        //    {
        //        ShowLogToForm($"输送线OpcUa客户端连接Opc服务器发生异常：【{ex.Message}】！IP地址：【{TranOpcUaServerIpAddress}】", true, LogTypeEnum.Err);
        //        TranOpcUaServerConnStatus = false;
        //        return false;
        //    }
        //}
        //public bool SetOpcItemSubscription()
        //{
        //    try
        //    {
        //        List<string> MonitorNodeTags_Crn = new List<string>();
        //        List<string> MonitorNodeTags_Tran = new List<string>();
        //        foreach (WcsOpcItemMd item in allOpcItemList)
        //        {
        //            if (item.PlcCode == "CrnPlc001")
        //            {
        //                MonitorNodeTags_Crn.Add(item.OpcItemPos);
        //            }
        //            if (item.PlcCode == "TranPlc001")
        //            {
        //                MonitorNodeTags_Tran.Add(item.OpcItemPos);
        //            }
        //        }
        //        crn_OpcUaClient.AddSubscription("Crn", MonitorNodeTags_Crn.ToArray(), SubCallback);
        //        ShowLogToForm($"堆垛机设置OpcItem订阅模式成功！", true, LogTypeEnum.Run);
        //        tran_OpcUaClient.AddSubscription("Tran", MonitorNodeTags_Tran.ToArray(), SubCallback);
        //        ShowLogToForm($"输送线设置OpcItem订阅模式成功！", true, LogTypeEnum.Run);
        //        return true;
        //    }
        //    catch (Exception ex)
        //    {
        //        ShowLogToForm($"堆垛机设置OpcItem订阅模式发生异常：【{ex.Message}】！", true, LogTypeEnum.Err);
        //        ShowLogToForm($"输送线设置OpcItem订阅模式发生异常：【{ex.Message}】！", true, LogTypeEnum.Err);
        //        return false;
        //    }
        //}
        #endregion  2021 0602 孙亚龙注释掉旧版代码

        private void SubCallback(string key, MonitoredItem monitoredItem, MonitoredItemNotificationEventArgs args)
        {
            MonitoredItemNotification notification = args.NotificationValue as MonitoredItemNotification;
            WcsOpcItemMd tmpMonitoredOpcItem = allOpcItemList.FirstOrDefault(x => x.OpcItemPos == monitoredItem.StartNodeId.ToString() && x.PlcCode == key);
            if (tmpMonitoredOpcItem != null)
            {
                tmpMonitoredOpcItem.OpcItemValue = notification.Value.WrappedValue.Value.ToString();
                Task.Run(() => {
                    BasCommon_Dal.Instance.UpdateOpcItemMonitorToDataBase(tmpMonitoredOpcItem);
                });
            }
            #region 2021 0602 孙亚龙注释掉旧版代码
            //if (key == "Crn")
            //{
            //    MonitoredItemNotification notification = args.NotificationValue as MonitoredItemNotification;
            //    WcsOpcItemMd tmpMonitoredOpcItem = allOpcItemList.FirstOrDefault(x => x.OpcItemPos == monitoredItem.StartNodeId.ToString() && x.PlcCode == "CrnPlc001");
            //    if (tmpMonitoredOpcItem != null)
            //    {
            //        tmpMonitoredOpcItem.OpcItemValue = notification.Value.WrappedValue.Value.ToString();
            //        Task.Run(() =>
            //        {
            //            BasCommon_Dal.Instance.UpdateOpcItemMonitorToDataBase(tmpMonitoredOpcItem);
            //        });
            //    }
            //}
            //else if (key == "Tran")
            //{
            //    MonitoredItemNotification notification = args.NotificationValue as MonitoredItemNotification;
            //    WcsOpcItemMd tmpMonitoredOpcItem = allOpcItemList.FirstOrDefault(x => x.OpcItemPos == monitoredItem.StartNodeId.ToString() && x.PlcCode == "TranPlc001");
            //    if (tmpMonitoredOpcItem != null)
            //    {
            //        tmpMonitoredOpcItem.OpcItemValue = notification.Value.WrappedValue.Value.ToString();
            //        Task.Run(() =>
            //        {
            //            BasCommon_Dal.Instance.UpdateOpcItemMonitorToDataBase(tmpMonitoredOpcItem);
            //        });
            //    }
            //} 
            #endregion 2021 0602 孙亚龙注释掉旧版代码
        }

        /// <summary>
        /// 写入OPC变量值
        /// </summary>
        /// <param name="wcsOpcItemMd">opc变量对象</param>
        /// <param name="value">写入值</param>
        /// <returns></returns>
        public bool WriteOpcItemValue(WcsOpcItemMd wcsOpcItemMd, object value)
        {
            try
            {
                OpcUaClient tmpOpcUaClient = opcUaClientLst.Where(x => x.Key.PlcCode == wcsOpcItemMd.PlcCode).FirstOrDefault().Value;
                switch (wcsOpcItemMd.PlcItemDataType)
                {
                    case 1:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt32(value));
                    case 2:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value.ToString());
                    case 3:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToBoolean(value));
                    case 4:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToDouble(value));
                    case 5:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt16(value));
                    case 6:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToByte(value));
                    default:
                        return tmpOpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value);
                }

                #region 孙亚龙 20210602 注释旧版代码
                //if (wcsOpcItemMd.PlcCode == "CrnPlc001")
                //{
                //    switch (wcsOpcItemMd.PlcItemDataType)
                //    {
                //        case 1:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt32(value));
                //        case 2:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value.ToString());
                //        case 3:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToBoolean(value));
                //        case 4:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToDouble(value));
                //        case 5:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt16(value));
                //        case 6:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToByte(value));
                //        default:
                //            return crn_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value);
                //    }
                //}
                //if (wcsOpcItemMd.PlcCode == "TranPlc001")
                //{
                //    switch (wcsOpcItemMd.PlcItemDataType)
                //    {
                //        case 1:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt32(value));
                //        case 2:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value.ToString());
                //        case 3:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToBoolean(value));
                //        case 4:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToDouble(value));
                //        case 5:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToInt16(value));
                //        case 6:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, Convert.ToByte(value));
                //        default:
                //            return tran_OpcUaClient.WriteNode(wcsOpcItemMd.OpcItemPos, value);
                //    }
                //} 
                #endregion
            }
            catch(Exception ex)
            {
                ShowLogToForm($"OpcItem变量写入发生异常：【{ex.Message}】！设备名称：【{wcsOpcItemMd.DevName}】PLC：【{wcsOpcItemMd.PlcName}】OPC变量：【{wcsOpcItemMd.OpcItemCode}】变量OPC地址：【{wcsOpcItemMd.OpcItemPos}】写入值：【{value}】", true, LogTypeEnum.Err);
                return false;
            }
        }

        public void CloseConnect()
        {
            foreach (var item in opcUaClientLst)
            {
                item.Value.Disconnect();
            }
            #region  孙亚龙 20210602 注释旧版代码
            //if (CrnOpcUaServerConnStatus)
            //{
            //    crn_OpcUaClient.Disconnect();
            //}
            //if (TranOpcUaServerConnStatus)
            //{
            //    tran_OpcUaClient.Disconnect();
            //} 
            #endregion
        }

        #region 桌面显示Log、记录log到文本
        /// <summary>
        /// 桌面显示Log、记录log到文本
        /// </summary>
        /// <param name="msg">log内容</param>
        /// <param name="isShowFormFlag">是否输出到桌面日志端。true：输出桌面；false：只记录文本</param>
        /// <param name="logTypeEnum">日志类型枚举</param>
        private void ShowLogToForm(string msg, bool isShowFormFlag, LogTypeEnum logTypeEnum)
        {
            if (isShowFormFlag)
            {
                showLogToFrm.ShowLog(new ShowLogToFrmEventArgs(LogHeadText + msg));
            }
            LogHelper.WriteLog(LogHeadText + msg, logTypeEnum);
        }
        #endregion
    }
}