/*
* ClearURLs
* Copyright (c) 2017-2020 Kevin Röbert
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/*jshint esversion: 6 */
/*
* This script is responsible to check in fixed intervals, that ClearURLs works properly.
* In issue #203, some users reported, that ClearURLs filter function doesn't work after
* some time, but without any recognizable reason.
*
* This watchdog restarts the whole Add-on, when the check fails.
*/
const __dirtyURL = "https://clearurls.roebert.eu?utm_source=addon";
const __cleanURL = new URL("https://clearurls.roebert.eu").toString();

browser.alarms.create("watchdog", {
    periodInMinutes: 1,
});

browser.alarms.onAlarm.addListener(function (alarmInfo) {
    if (alarmInfo.name === "watchdog" && isStorageAvailable() && storage.globalStatus) {
        if (new URL(pureCleaning(__dirtyURL, true)).toString() !== __cleanURL) {
            storage.watchDogErrorCount += 1;
            console.log(translate('watchdog', storage.watchDogErrorCount));
            saveOnExit();
            if (storage.watchDogErrorCount < 3) reload();
        } else if (storage.watchDogErrorCount > 0) {
            storage.watchDogErrorCount = 0;
            saveOnExit();
        }
    }
});