<?php
 
require_once 'autoloader.php';
 
require_once 'MyVapid.php';
 
require_once 'MyLogger.php';
 
 
use SKien\PNServer\PNDataProviderSQLite;
 
use SKien\PNServer\PNPayload;
 
use SKien\PNServer\PNServer;
 
use SKien\PNServer\PNSubscription;
 
 
/**
 
 * Example to send your push notifications.
 
 *
 
 * For easy setup we use the SQLite dataprovider and set the database file
 
 * located in the same directory as this script.
 
 *
 
 * First you should open PNTestClient.html in your browser and click the
 
 * [Subscribe] button to create a valis subscription in your database.
 
 *
 
 * Needed steps to send notification to all subscriptions stored in our database:
 
 * 1. Create and init dataprovider for database containing at least one valid subscription
 
 * 2. Set our VAPID keys (rename MyVapid.php.org to MyVapid.php ans set your own keys)
 
 * 3. Create and set the payload
 
 * 4. Load the subscriptions from the dataprovider
 
 * 5. And push the notification
 
 *
 
 * After the notification was pushed, a summary and/or a detailed log can be
 
 * retrieved from the server
 
 *
 
 * If you want to log several events or errors, you can pass any PSR-3 compliant
 
 * logger of your choice to the PNDataProvider- and PNServer-object.
 
 *
 
 * THIS CODE IS INTENDED ONLY AS EXAMPLE - DONT USE IT DIRECT IN YOU PROJECT
 
 *
 
 * @author Stefanius <s.kientzler@online.de>
 
 * @copyright MIT License - see the LICENSE file for details
 
 */
 
 
// check, if PHP version is sufficient and all required extensions are installed
 
$bExit = false;
 
if (version_compare(phpversion(), '7.4', '<')) {
 
    trigger_error('At least PHP Version 7.4 is required (current Version is ' . phpversion() . ')!', E_USER_WARNING);
 
    $bExit = true;
 
}
 
$aExt = array('curl', 'gmp', 'mbstring', 'openssl', 'bcmath');
 
foreach ($aExt as $strExt) {
 
    if (!extension_loaded($strExt)) {
 
        trigger_error('Extension ' . $strExt . ' must be installed!', E_USER_WARNING);
 
        $bExit = true;
 
    }
 
}
 
if ($bExit) {
 
    exit();
 
}
 
 
// for this test we use SQLite database
 
$logger = createLogger();
 
$oDP = new PNDataProviderSQLite(null, null, null, $logger);
 
if (!$oDP->isConnected()) {
 
    echo $oDP->getError();
 
    exit();
 
}
 
 
echo 'Count of subscriptions: ' . $oDP->count() . '<br/><br/>' . PHP_EOL;
 
if (!$oDP->init()) {
 
    echo $oDP->getError();
 
    exit();
 
}
 
 
// the server to handle all
 
$oServer = new PNServer($oDP);
 
$oServer->setLogger($logger);
 
 
// Set our VAPID keys
 
$oServer->setVapid(getMyVapid());
 
 
// create and set payload
 
// - we don't set a title - so service worker uses default
 
// - URL to icon can be
 
//    * relative to the origin location of the service worker
 
//    * absolute from the homepage (begining with a '/')
 
//    * complete URL (beginning with https://)
 
$oPayload = new PNPayload('', "...first text to display.", './elephpant.png');
 
$oPayload->setTag('news', true);
 
$oPayload->setURL('/where-to-go.php');
 
 
$oServer->setPayload($oPayload);
 
 
// load subscriptions from database
 
if (!$oServer->loadSubscriptions()) {
 
    echo $oDP->getError();
 
    exit();
 
}
 
 
// ... and finally push !
 
if (!$oServer->push()) {
 
    echo '<h2>' . $oServer->getError() . '</h2>' . PHP_EOL;
 
} else {
 
    $aLog = $oServer->getLog();
 
    echo '<h2>Summary:</h2>' . PHP_EOL;
 
    $summary = $oServer->getSummary();
 
    echo 'total: ' . $summary['total'] . '<br/>' . PHP_EOL;
 
    echo 'pushed: ' . $summary['pushed'] . '<br/>' . PHP_EOL;
 
    echo 'failed: ' . $summary['failed'] . '<br/>' . PHP_EOL;
 
    echo 'expired: ' . $summary['expired'] . '<br/>' . PHP_EOL;
 
    echo 'removed: ' . $summary['removed'] . '<br/>' . PHP_EOL;
 
 
    echo '<h2>Push - Log:</h2>' . PHP_EOL;
 
    foreach ($aLog as $strEndpoint => $aMsg ) {
 
        echo PNSubscription::getOrigin($strEndpoint) . ': ' .$aMsg['msg'] . '<br/>' . PHP_EOL;
 
    }
 
}
 
 
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