using?System;
using?System.Collections.Generic;
using?System.Diagnostics;
using?System.IO;
using?System.IO.Compression;
using?System.Net;
using?System.Threading;
using?System.Windows.Forms;

namespace?AutoPatcher
{
????public?partial?class?AMain?:?Form
????{
????????long?_totalBytes?_completedBytes?_currentBytes;
????????private?int?_fileCount?_currentCount;

????????private?FileInformation?_currentFile;
????????public?bool?Completed?Checked?ErrorFound;
????????
????????public?List?OldList;
????????public?Queue?DownloadList;

????????private?Stopwatch?_stopwatch?=?Stopwatch.StartNew（）;

????????private?Thread?_workThread;

????????public?AMain（）
????????{
????????????InitializeComponent（）;
????????}



????????public?void?Start（）
????????{
????????????OldList?=?new?List（）;
????????????DownloadList?=?new?Queue（）;

????????????byte[]?data?=?Download（Settings.PatchFileName）;

????????????if?（data?!=?null）
????????????{
????????????????using?（MemoryStream?stream?=?new?MemoryStream（data））
????????????????using?（BinaryReader?reader?=?new?BinaryReader（stream））
????????????????????ParseOld（reader）;
????????????}
????????????else
????????????{
????????????????MessageBox.Show（“Could?not?get?Patch?Information.“）;
????????????????Completed?=?true;
????????????????return;
????????????}

????????????_fileCount?=?OldList.Count;
????????????for?（int?i?=?0;?i?????????????????CheckFile（OldList[i]）;

????????????Checked?=?true;
????????????_fileCount?=?0;
????????????_currentCount?=?0;


????????????_fileCount?=?DownloadList.Count;
????????????BeginDownload（）;
????????}

????????private?void?BeginDownload（）
????????{
????????????if?（DownloadList?==?null）?return;

????????????if?（DownloadList.Count?==?0）
????????????{
????????????????DownloadList?=?null;
????????????????_currentFile?=?null;
????????????????Completed?=?true;

????????????????CleanUp（）;
????????????????return;
????????????}

????????????_currentFile?=?DownloadList.Dequeue（）;

????????????Download（_currentFile）;
????????}
????????private?void?CleanUp（）
????????{
????????????if?（!Settings.AllowCleanUp）?return;

????????????string[]?fileNames;

????????????if?（Directory.Exists（@“.\Data\“））
????????????{
????????????????fileNames?=?Directory.GetFiles（@“.\Data\“?@“*.lib“）;

????????????????for?（int?i?=?0;?i?????????????????{
????????????????????if?（!NeedFile（fileNames[i]））
????????????????????????File.Delete（fileNames[i]）;
????????????????}
????????????}


????????????if?（Directory.Exists（@“.\Sound\“））
????????????{
????????????????fileNames?=?Directory.GetFiles（@“.\Sound\“?@“*.wav“）;

????????????????for?（int?i?=?0;?i?????????????????{
????????????????????if?（!NeedFile（fileNames[i]））
????????????????????????File.Delete（fileNames[i]）;
????????????????}

????????????????fileNames?=?Directory.GetFiles（@“.\Sound\“?@“*.mp3“）;

????????????????for?（int?i?=?0;?i?