/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// First, parse and save the incoming arguments ("?storage=name&context=key")
// Note: window.location.search doesn't work with nsSimpleURIs used for about:* addresses.
var search = window.location.href.match(/^.*\?(.*)$/);
var searchParams = new URLSearchParams(search ? search[1] : '');
var storage = searchParams.get('storage');
var cacheContext = searchParams.get('context');

// The context is in a format as used by the HTTP cache v2 back end
if (cacheContext)
  var [context, isAnon, isInBrowser, appId, isPrivate] = cacheContext.match(/(a,)?(b,)?(i\d+,)?(p,)?/);
if (appId)
  appId = appId.match(/i(\d+),/)[1];


function $(id) { return document.getElementById(id) || {}; }

// Initialize the context UI controls at the start according what we got in the "context=" argument
addEventListener('DOMContentLoaded', function() {
  $('anon').checked = !!isAnon;
  $('inbrowser').checked = !!isInBrowser;
  $('appid').value = appId || '';
  $('priv').checked = !!isPrivate;
}, false);

// When user presses the [Update] button, we build a new context key according the UI control
// values and navigate to a new about:cache?storage=<name>&context=<key> URL.
function navigate()
{
  context = '';
  if ($('anon').checked)
    context += 'a,';
  if ($('inbrowser').checked)
    context += 'b,';
  if ($('appid').value)
    context += 'i' + $('appid').value + ',';
  if ($('priv').checked)
    context += 'p,';

  window.location.href = 'about:cache?storage=' + storage + '&context=' + context;
}
