using ICSharpCode.SharpZipLib.Zip;
using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;

namespace AutoUpdate
{
 static class Program
 {
 /// <summary>
 /// 应用程序的主入口点。
 /// </summary>
 [STAThread]
 static void Main(string[] args)
 {
#if DEBUG
 args = new string[3];
 args[0] = @"C:\ProgramData\SimpleRemote\Update.zip";
 args[1] = @"D:\编程开发\C#\远程桌面管理工具\SimoleRemote\bin\Debug";
 args[2] = @"D:\编程开发\C#\远程桌面管理工具\SimoleRemote\bin\Debug\SimpleRemote.exe";
 AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
#endif
 string inFile = args[0], outDir = args[1], mainFile = args[2];
 string unMainFile = Path.Combine(outDir, "SimpleRemote.exe");

 Exception exception = null;
 if (args.Length > 2)
 {
 for (int i = 0; i < 3; i++)
 {
 try
 {
 UnZip(inFile, outDir, true, null);
 if (string.Compare(unMainFile, mainFile,true) != 0)
 {
 if (File.Exists(mainFile)) File.Delete(mainFile);
 File.Move(unMainFile, mainFile);
 }
 Process.Start(mainFile);
 File.Delete(inFile);
 return;
 }
 catch (Exception e)
 {
 exception = e;
 }
 System.Threading.Thread.Sleep(500);
 }
 ErrorForm errorForm = new ErrorForm(exception.Message);
 errorForm.ShowDialog();
 }
 }

 private static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
 {
 string resourceName = $"Program.Lib.{new AssemblyName(args.Name).Name}.dll";
 using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
 {
 byte[] assemblyData = new byte[stream.Length];
 stream.Read(assemblyData, 0, assemblyData.Length);
 return Assembly.Load(assemblyData);
 }
 }

 /// <summary>
 /// 解压缩一个 zip 文件。
 /// </summary>
 /// <param name="zipedFile">压缩文件</param>
 /// <param name="strDirectory">解压目录</param>
 /// <param name="overWrite">是否覆盖已存在的文件。</param>
 /// <param name="password">zip 文件的密码。</param>
 public static void UnZip(string zipedFile, string strDirectory, bool overWrite, string password)
 {
 try
 {
 if (strDirectory == "")
 strDirectory = Directory.GetCurrentDirectory();
 if (!strDirectory.EndsWith("\\"))
 strDirectory = strDirectory + "\\";

 using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipedFile)))
 {
 if (password != null)
 {
 s.Password = password;
 }
 ZipEntry theEntry;

 while ((theEntry = s.GetNextEntry()) != null)
 {
 string directoryName = "";
 string pathToZip = "";
 pathToZip = theEntry.Name;

 if (pathToZip != "")
 directoryName = Path.GetDirectoryName(pathToZip) + "\\";

 string fileName = Path.GetFileName(pathToZip);

 Directory.CreateDirectory(strDirectory + directoryName);

 if (fileName != "")
 {
 if ((File.Exists(strDirectory + directoryName + fileName) && overWrite) || (!File.Exists(strDirectory + directoryName + fileName)))
 {
 using (FileStream streamWriter = File.Create(strDirectory + directoryName + fileName))
 {
 int size = 2048;
 byte[] data = new byte[2048];
 while (true)
 {
 size = s.Read(data, 0, data.Length);

 if (size > 0)
 streamWriter.Write(data, 0, size);
 else
 break;
 }
 streamWriter.Close();
 }
 }
 }
 }

 s.Close();
 }
 }
 catch (Exception e)
 {
 throw new Exception($"解压文件失败,{e.Message}");
 }
 }
 }
}