<?php
/* Copyright (C) 2016	   Sergio Sanchis		<sergiosanchis@hotmail.com>
 * Copyright (C) 2017	   Juanjo Menent		<jmenent@2byte.es>
 * Copyright (C) 2020	   Destailleur Laurent  <eldy@users.sourceforge.net>
 *
 * 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 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * Library javascript to enable Browser notifications
 */

if (!defined('NOREQUIREUSER')) define('NOREQUIREUSER', '1');
if (!defined('NOREQUIRESOC')) define('NOREQUIRESOC', '1');
if (!defined('NOCSRFCHECK')) define('NOCSRFCHECK', 1);
if (!defined('NOTOKENRENEWAL')) define('NOTOKENRENEWAL', 1);
if (!defined('NOLOGIN')) define('NOLOGIN', 1);
if (!defined('NOREQUIREMENU')) define('NOREQUIREMENU', 1);
if (!defined('NOREQUIREHTML')) define('NOREQUIREHTML', 1);

require_once '../../main.inc.php';

if (!($_SERVER['HTTP_REFERER'] === $dolibarr_main_url_root.'/' || $_SERVER['HTTP_REFERER'] === $dolibarr_main_url_root.'/index.php'
    || preg_match('/getmenu_div\.php/', $_SERVER['HTTP_REFERER'])))
{
    global $langs, $conf;

    top_httphead('text/javascript; charset=UTF-8');

    print 'var login = \''.$_SESSION['dol_login'].'\';'."\n";
	print 'var nowtime = Date.now();';
    print 'var time_auto_update = '.$conf->global->MAIN_BROWSER_NOTIFICATION_FREQUENCY.';'."\n"; // Always defined
    print 'var time_js_next_test;'."\n";
    ?>

	/* Check if permission ok */
	if (Notification.permission !== "granted") {
		console.log("Ask Notification.permission");
        Notification.requestPermission()
    }

	/* Launch timer */
   	// We set a delay before launching first test so next check will arrive after the time_auto_update compared to previous one.
    //var time_first_execution = (time_auto_update + (time_js_next_test - nowtime)) * 1000;	//need milliseconds
    var time_first_execution = <?php echo max(3, $conf->global->MAIN_BROWSER_NOTIFICATION_CHECK_FIRST_EXECUTION); ?>;
    if (login != '') {
    	setTimeout(first_execution, time_first_execution * 1000);
        time_js_next_test = nowtime + time_first_execution;
    	console.log("Launch browser notif check: setTimeout is set to launch 'first_execution' function after a wait of time_first_execution="+time_first_execution+". nowtime (time php page generation) = "+nowtime+" time_js_next_check = "+time_js_next_test);
    } //first run auto check


    function first_execution() {
    	console.log("Call first_execution then set repeat time to time_auto_update = MAIN_BROWSER_NOTIFICATION_FREQUENCY = "+time_auto_update);
        check_events();	//one check before setting the new time for other checks
        setInterval(check_events, time_auto_update * 1000); // Set new time to run next check events
    }

    function check_events() {
    	if (Notification.permission === "granted")
    	{
    	    time_js_next_test += time_auto_update;
    		console.log("Call ajax to check_events with time_js_next_test = "+time_js_next_test);

            $.ajax("<?php print DOL_URL_ROOT.'/core/ajax/check_notifications.php'; ?>", {
                type: "post",   // Usually post or get
                async: true,
                data: { time_js_next_test: time_js_next_test, forcechecknow: 1, token: 'notrequired' },
                dataType: "json",
                success: function (result) {
                	console.log(result);
                    var arrayofpastreminders = Object.values(result.pastreminders);
                    if (arrayofpastreminders && arrayofpastreminders.length > 0) {
                    	var audio = null;
                        <?php
						if (!empty($conf->global->AGENDA_REMINDER_BROWSER_SOUND)) {
							print 'audio = new Audio(\''.DOL_URL_ROOT.'/theme/common/sound/notification_agenda.wav\');';
						}
						?>
						var listofreminderids = '';

                        $.each(arrayofpastreminders, function (index, value) {
							console.log(index);
                        	console.log(value);
                            var url = "notdefined";
                            var title = "Not defined";
                            var body = value.label;
                            if (value.type == 'agenda' && value.location != null && value.location != '') {
                                body += '\n' + value.location;
                            }

                            if (value.type == 'agenda' && (value.event_date_start_formated != null || value.event_date_start_formated['event_date_start'] != '')) {
                                body += '\n' + value.event_date_start_formated;
                            }

                            if (value.type == 'agenda')
                            {
                             	url = '<?php echo DOL_URL_ROOT.'/comm/action/card.php?id='; ?>' + value.id;
                                title = '<?php print $langs->trans('AgendaReminder') ?>';
                            }
                            var extra = {
                                icon: '<?php print DOL_URL_ROOT.'/theme/common/bell.png'; ?>',
                                body: body,
                                tag: value.id
                            };

                            // We release the notify
                            console.log("Send notification on browser");
                            var noti = new Notification(title, extra);
                            if (index==0 && audio)
                            {
                            	audio.play();
                            }

                            if (noti) {
	                            noti.onclick = function (event) {
	                                console.log("A click on notification on browser has been done");
	                                event.preventDefault(); // prevent the browser from focusing the Notification's tab
	                                window.focus();
	                                window.open(url, '_blank');
	                                noti.close();
	                            };

	                            listofreminderids = (listofreminderids == '' ? '' : listofreminderids + ',') + value.id_reminder
	                        }
                        });

                        // Update status of all notifications we sent on browser (listofreminderids)
                        console.log("Flag notification as done for listofreminderids="+listofreminderids);
						$.ajax("<?php print DOL_URL_ROOT.'/core/ajax/check_notifications.php?action=stopreminder&listofreminderids='; ?>"+listofreminderids, {
			                type: "post",   // Usually post or get
			                async: true,
			                data: { time_js_next_test: time_js_next_test, token: 'notrequired' }
			                });
                    } else {
                    	console.log("No past reminder found, next try at "+time_js_next_test);
                    }
                }
            });
        }
        else
        {
        	console.log("Cancel check_events. Useless because javascript Notification.permission is "+Notification.permission+" (blocked manualy or web site is not https).");
        }
    }
    <?php
}