using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;

namespace EShang
{
    public class Update
    {
        /// <summary>
        /// 自动更新程序中间类入口
        /// 入口方法名称LoadAssembly请勿更改
        /// 如有其他功能需要实现请在LoadAssembly方法下进行实现
        /// </summary>
        /// <param name="LoadType">加载类型</param>
        /// <param name="DLLDir">dll文件所在文件夹</param>
        /// <returns></returns>
        public static bool LoadAssembly(string LoadType, string DLLDir)
        {
            string _DLLFilePath = "";
            switch (LoadType)
            {
                //收银机端
                case "AutoUpdateEx":
                    if (String.IsNullOrWhiteSpace(DLLDir))
                    {
                        _DLLFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AutoUpdater.dll");
                    }
                    else
                    {
                        _DLLFilePath = Path.Combine(DLLDir, "AutoUpdater.dll");
                    }
                    if (File.Exists(_DLLFilePath))
                    {
                        try
                        {
                            byte[] _File = File.ReadAllBytes(_DLLFilePath);
                            Assembly _Assembly = Assembly.Load(_File);////我们要调用的dll文件路径
                            Type _Type = _Assembly.GetType("AutoUpdater.MainWindow");//获取类名，必须 命名空间+类名  
                            (Activator.CreateInstance(_Type) as System.Windows.Window).Show();
                        }
                        catch
                        {
                            return false;
                        }
                    }
                    else
                    {
                        return false;
                    }
                    break;
                //服务器端    
                case "RunUpdateExe":
                    if (String.IsNullOrWhiteSpace(DLLDir))
                    {
                        _DLLFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin", "RunUpdater.dll");
                    }
                    else
                    {
                        _DLLFilePath = Path.Combine(DLLDir, "RunUpdater.dll");
                    }
                    if (File.Exists(_DLLFilePath))
                    {
                        try
                        {
                            byte[] _File = File.ReadAllBytes(_DLLFilePath);
                            Assembly _Assembly = Assembly.Load(_File);////我们要调用的dll文件路径
                            Type _Type = _Assembly.GetType("RunUpdater.MainWindow");//获取类名，必须 命名空间+类名  
                            (Activator.CreateInstance(_Type) as System.Windows.Window).Show();
                        }
                        catch
                        {
                            return false;
                        }
                    }
                    else
                    {
                        return false;
                    }
                    break;
            }
            return true;
        }
    }
}