using HslCommunication;
using Mesnac.PlcUtils.common;
using Mesnac.PlcUtils.enumInfo;
using Mesnac.PlcUtils.Impl;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace Mesnac.PlcUtils
{
    public sealed class PlcBusiness
    {

        private static readonly Lazy<PlcBusiness> lazy = new Lazy<PlcBusiness>(() => new PlcBusiness());
        public static PlcBusiness Instance
        {
            get
            {
                return lazy.Value;
            }
        }

        private PlcBusiness() { }

        private static IPlc plcInstance = null;

        public void InitPlcConnect(PlcType plcType, string plcAddress, int plcPort)
        {
            try
            {
                string str = System.Environment.CurrentDirectory;
                str = str + "\\Mesnac.PlcUtils.dll";
                Assembly assembly = Assembly.LoadFile(str); // 加载程序集（EXE 或 DLL）
                string AssemName = "Mesnac.PlcUtils.Impl." + plcType.GetDescription();
                var obj = assembly.CreateInstance(AssemName, true);
                plcInstance = obj as IPlc;
                if (plcInstance == null)
                {
                    ICSharpCode.Core.LoggingService<OmronNJPlc>.Error("PLC初始化失败！！！");
                    return;
                }
                else
                {
                    if (!plcInstance.IsConnected)
                    {
                        bool connectResult = plcInstance.Connect(plcAddress, plcPort);
                        if (connectResult)
                        {
                            ICSharpCode.Core.LoggingService<OmronNJPlc>.Debug("PLC连接成功！！！");
                        }
                        else
                        {
                            ICSharpCode.Core.LoggingService<OmronNJPlc>.Error("PLC连接失败！！！");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                ICSharpCode.Core.LoggingService<OmronNJPlc>.Error($"PLC初始化异常：{ex.Message}");
            }
        }

        public void Dispose()
        {
            plcInstance.DisConnect();
        }


        public OperateResult<bool> readBoolValue(string address)
        {
            if(plcInstance != null)
            {
                return plcInstance.readBoolByAddress(address);
            }
            else
            {
                return new OperateResult<bool>() { 
                    IsSuccess = false,
                    Content = false
                };
            }
        }

    }
}