/*
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is SynchroEdit (www.synchroedit.com).
 *
 * The Initial Developer of the Original Code is
 * Kalle Alm (kalle@enrogue.com).
 * Portions created by the Initial Developer are Copyright (C) 2005
 * Alacrity Management Corporations. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** -->
 *
 * SynchroEditor client.
 *
 * Preferences functionality.
 */
var pref = new Array(); // List of preferences.

// Get preference.
function prefs_get(name)
{
  var c    = document.cookie;
  var offs = c.indexOf("; " + name + "=");
  if (offs == -1) {
    return null;
  }
  var offe = c.indexOf(";", offs + 2);
  if (offe == -1) offe = c.length;
  return unescape(c.substring(offs + name.length + 3, offe));
}

// Set preference.
function prefs_set(name, value)
{
  document.cookie = name + "=" + escape(value);
}

// Initialize preferences service.
function prefs_init()
{
  prefs_load("default");
  prefs_load_global();
}

// Store global settings.
function prefs_store_global()
{
  prefs_set("system.default_user", pref["default_user"]);
}

// Load global settings.
function prefs_load_global()
{
  try {
    pref["default_user"] = prefs_get("system.default_user");
  } catch (e) {}
  if (pref["default_user"] == null)
    pref["default_user"] = "";
}

// Load default preferences.
function prefs_load(user)
{
  var ns = user + ".";

  try {
    pref["color"] = prefs_get(ns + "color");
  } catch (e) {}
}

// Save preferences.
function prefs_save(user)
{
  var ns = user + ".";
  prefs_set(ns + "color", pref["color"]);
}

// Input default system preferences.
function prefs_system_defaults()
{
  // this is currently static but will most likely not be used
  // in the final product.
  pref["system.host"] = DEFAULT_HOST;
  pref["system.port"] = DEFAULT_PORT;
  pref["system.user"] = null;
  pref["default_user"]
}

// Process the URL of the loaded window and acquire settings.
function prefs_system_process_href(href)
{
  // href is "[host/dir/page]?<setting>=<value>[&...]"
  // but it can also be wrapped, in which case we will have two ?'s.
  var halves = href.split('?');
  if (halves.length > 1) {
    var settings = halves[halves.length-1].split('&');
    var ix       = settings.length;
    var pair     = null;
    for (var i = 0; i < ix; i++) {
      pair = settings[i].split('=');
      pref["system." + pair[0]] = (pair.length == 1 ? 1 : pair[1]);
    }
  }
}