using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Security.Policy;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using Xylem.Common.Utils.AssemblyLoader;

namespace DllLoadTest
{
    public partial class FrmHost : Form
    {
        public FrmHost()
        {
            InitializeComponent();
            var assemblyPath = "c:\\Users\\Thomas\\Downloads\\ServiceFwUpdateSw\\";
            var appDomainName = "AppDomainServiceFwUpdateSw";
            var assemblyName = "Xylem.ServiceFwUpdate.Ui.ServiceFwUpdateSw.dll";
            var className = "Xylem.ServiceFwUpdate.Ui.ServiceFwUpdateSw.FrmServiceFwUpdateSw";

            //var domainSetup = new AppDomainSetup
            //{
            //    ApplicationBase = assemblyPath
            //};

            //var appDomainEvidence = AppDomain.CurrentDomain.Evidence;
            var appDomain = AppDomain.CreateDomain(appDomainName);//, appDomainEvidence, domainSetup);
            var hostDomainName = AppDomain.CurrentDomain.FriendlyName;
            appDomainName = appDomain.FriendlyName;

            var value = (AppDomainProxy)appDomain.CreateInstanceAndUnwrap(typeof (AppDomainProxy).Assembly.FullName,
                typeof (AppDomainProxy).FullName ?? string.Empty);

            var _object = value.LoadAssembly(assemblyPath, assemblyName, className);
            if (_object is Form formFwUpdate)
            {
                formFwUpdate.Show();
            }

            //AppDomain.Unload(appDomain);

            //alternative
            //var setup = AppDomain.CurrentDomain.SetupInformation;
            //setup.ApplicationBase = _basePath;
            //setup.ShadowCopyFiles = "true";
            //var domain = AppDomain.CreateDomain("MyDomainName" + Guid.NewGuid(), null, setup);

        }
    }
    public class AppDomainProxy : MarshalByRefObject
    {
        public Object LoadAssembly(String assemblyPath, String assemblyName, String className)
        {
            try
            {
                var loadedAssembly = Assembly.LoadFrom(Path.Combine(assemblyPath, assemblyName));
                // find the method in fully specified class name
                var type = loadedAssembly.GetType(className);
                return type == null ? null : Activator.CreateInstance(type);
            }
            catch (Exception)
            {
                return null;
            }
        }
    }
}