// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_INSTALLER_UTIL_DELETE_TREE_WORK_ITEM_H__
#define CHROME_INSTALLER_UTIL_DELETE_TREE_WORK_ITEM_H__

#include <string>
#include <windows.h>
#include "chrome/installer/util/work_item.h"

// A WorkItem subclass that recursively deletes a file system hierarchy at the
// given root path. The file system hierarchy could be a single file, or a
// directory.
// The file system hierarchy to be deleted can have a key file. If the key file
// is specified, deletion will be performed only if the key file is not in use.
class DeleteTreeWorkItem : public WorkItem {
 public:
  virtual ~DeleteTreeWorkItem();

  virtual bool Do();

  virtual void Rollback();

 private:
  friend class WorkItem;

  // Get a backup path that can keep root_path_ or key_path_
  bool GetBackupPath(std::wstring for_path, std::wstring* backup_path);

  DeleteTreeWorkItem(std::wstring root_path, std::wstring key_path);

  // Root path to delete.
  std::wstring root_path_;

  // Path to the key file. If the key file is specified, deletion will be
  // performed only if the key file is not in use.
  std::wstring key_path_;

  // The full path in temporary directory that the original root_path_ has
  // been moved to.
  std::wstring backup_path_;

  // The full path in temporary directory that the original key_path_ has
  // been moved to.
  std::wstring key_backup_path_;
};

#endif  // CHROME_INSTALLER_UTIL_DELETE_TREE_WORK_ITEM_H__