/// <summary>
/// Asynchronously runs the patching process on the specified file.
/// </summary>
/// <param name="halo">The Halo installation.</param>
private async Task PatchAsync(HaloInstallation halo)
{
FileInfo pakFile = halo.GetPakFilePath();
if (!(pakFile?.Exists ?? false))
{
MsgBoxHelpers.Error(Resources.PakFileNotFound,
callback: () => Environment.Exit(0));
return;
}
Stream stream = File.Open(pakFile.FullName, FileMode.Open);
if (halo.GetGameVersion() > new Version(1, 1270, 0, 0))
{
bool abort = !MsgBoxHelpers.ConfirmYesNo(
String.Format(Resources.UntestedVersion, halo.GetGameVersion()),
icon: MessageBoxIcon.Warning,
yes: () => true,
no: () => { } // internally returns default(T)
);
if (abort)
{
Environment.Exit(0);
}
}
else
{
if (!this.ConfirmPatchNeeded(stream))
{
MsgBoxHelpers.Info(Resources.GameAlreadyPatched, Resources.PatchSkipped, () => Environment.Exit(0));
return;
}
}
if (this.ConfirmBackup())
{
// must close stream for backup to take place
stream.Close();
stream.Dispose();
BackupProgressForm progressForm = new BackupProgressForm();
progressForm.Show();
progressForm.BringToFront();
await FileHelpers.CreateBackupAsync(pakFile.FullName,
percentage =>
{
progressForm.PercentageProgressBar.Value = (int)Math.Floor(percentage);
progressForm.Text =
String.Format(Resources.CreatingBackupPercentage, percentage);
Application.DoEvents();
})
.ConfigureAwait(false);
// reopen stream for patching
stream = File.Open(pakFile.FullName, FileMode.Open);
}
this.ApplyPatch(stream);
stream.Close();
stream.Dispose();
MsgBoxHelpers.Info(Resources.PatchSuccessful, Resources.Done, () => Environment.Exit(0));
}