(* Guestfs Browser.
 * Copyright (C) 2011 Red Hat Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *)

open Utils

open Printf

let rec download_as_reg (tree : Filetree.tree) (path, hivexregedit) =
  let model = tree#model in
  let row = model#get_iter path in

  (* Get path to the top of the registry tree. *)
  let registry, nodes = tree#get_registry_path row in
  let regpath = String.concat "\\" (List.rev nodes) in
  let rootkey = Filetree.root_key_of_registry_t registry in
  debug "download_as_reg: %s %s" rootkey regpath;

  (* Force the registry to be downloaded, if not already. *)
  tree#get_registry_file path registry
    (when_downloaded tree path hivexregedit rootkey nodes regpath)

and when_downloaded tree path hivexregedit rootkey nodes regpath cachefile =
  (* Put up the dialog. *)
  let title = "Download as .reg file" in
  let dlg = GWindow.file_chooser_dialog ~action:`SAVE ~title ~modal:true () in
  dlg#add_button_stock `CANCEL `CANCEL;
  dlg#add_select_button_stock `SAVE `SAVE;
  let name = match nodes with [] -> rootkey | (name::_) -> name in
  dlg#set_current_name (name ^ ".reg");

  match dlg#run () with
  | `DELETE_EVENT | `CANCEL ->
      dlg#destroy ()
  | `SAVE ->
      match dlg#filename with
      | None -> ()
      | Some localfile ->
          dlg#destroy ();

          (* Use hivexregedit to save it. *)
          let cmd =
            sprintf "%s --export --prefix %s %s %s > %s"
              (Filename.quote hivexregedit)
              (Filename.quote rootkey) (Filename.quote cachefile)
              (Filename.quote regpath) (Filename.quote localfile) in
          Slave.run_command cmd Slave.no_callback