using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using PTMedInsuInterface.Helper;
using PTMedInsuInterface.Variables;

namespace PTMedInsuInterface.Common
{
    #region

    class DllInvoke
    {
        public static object ManagedInvoke(string DllFileName, string NameSpace, string ClassName, string MethodName, object[] ObjArrayParams)
        {
            //Global.writeLog("程序集信息：" + NameSpace + "." + ClassName + "." + MethodName);
            //Global.writeLog("文件全路径：" + DllFileName);
            //Global.writeLog("命名空间.类.方法：" + NameSpace + "." + ClassName + "." + MethodName);
            //Global.writeLog("入参：" + ObjArrayParams[0].ToString());
            object o = new object();
            try
            {
                //载入程序集 
                Assembly DllAssembly = Assembly.LoadFile(DllFileName);
                string err;
                if (DllAssembly == null)
                {
                    err ="DllAssembly未加载成功";
                    return JsonHelper.setExceptionJson(-1, "ManagedInvoke", err);
                }

                Type DllType = DllAssembly.GetType(NameSpace + "." + ClassName);

                if (DllType == null)
                {
                    err = "DllType 未获取到";
                    return JsonHelper.setExceptionJson(-1, "ManagedInvoke", err);
                }


                //查找要调用的方 法并进行调用 
                MethodInfo MyMethod = DllType.GetMethod(MethodName);

                if (MyMethod != null)
                {
                    object mObject = Activator.CreateInstance(DllType);
                    try
                    {
                        if (mObject == null)
                        {
                            err = " mObject is not exsit";
                            return JsonHelper.setExceptionJson(-1, "ManagedInvoke", err);
                        }

                        if (ObjArrayParams == null)
                        {
                            o = MyMethod.Invoke(mObject, null);
                        }
                        else
                        {
                            o = MyMethod.Invoke(mObject, new object[] { ObjArrayParams[0].ToString() });
                        }

                    }
                    catch (Exception e)
                    {
                        string inMes = "", outMes = e.Message; ;
                        if (e.InnerException != null)
                        {
                            inMes = e.InnerException.Message;
                            outMes += inMes;
                        }
                        o = JsonHelper.setExceptionJson(-1, $"调用{DllFileName},命名空间:{NameSpace},类名:{ClassName},方法名:{MethodName}异常", outMes);
                        return o;

                    }

                }
                else
                {
                    err = "MyMethod 未获取成功！";
                    return JsonHelper.setExceptionJson(-1, "ManagedInvoke", err);
                }


            }
            catch (Exception mEx)
            {
                Global.writeLog(mEx.ToString());
                string inMes = "", outMes = mEx.Message;
                if (mEx.InnerException != null)
                {
                    inMes = mEx.InnerException.Message;
                    outMes = outMes + inMes;
                }
                o = JsonHelper.setExceptionJson(-1, "DLL名：" + DllFileName + "，命名空间：" + NameSpace +",类名：" + ClassName + ",方法名：" + MethodName + ",调用(ManagedInvoke)异常：" , outMes);
            }
            //GlobalVariables.writeLog("出参：" + o.ToString());
            return o;
        }
    }
    
    #endregion
}