<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
namespace Piwik\Tracker;

use Piwik\CliMulti;
use Piwik\Common;
use Piwik\Option;
use Piwik\Tracker;
class ScheduledTasksRunner
{
    public function shouldRun(Tracker $tracker)
    {
        if (Common::isPhpCliMode()) {
            // don't run scheduled tasks in CLI mode from Tracker, this is the case
            // where we bulk load logs & don't want to lose time with tasks
            return \false;
        }
        return $tracker->shouldRecordStatistics();
    }
    /**
     * Tracker requests will automatically trigger the Scheduled tasks.
     * This is useful for users who don't setup the cron,
     * but still want daily/weekly/monthly PDF reports emailed automatically.
     *
     * This is similar to calling the API CoreAdminHome.runScheduledTasks
     */
    public function runScheduledTasks()
    {
        $now = time();
        // Currently, there are no hourly tasks. When there are some,
        // this could be too aggressive minimum interval (some hours would be skipped in case of low traffic)
        $minimumInterval = \Piwik\Tracker\TrackerConfig::getConfigValue('scheduled_tasks_min_interval');
        // If the user disabled browser archiving, they have already setup a cron
        // To avoid parallel requests triggering the Scheduled Tasks,
        // Get last time tasks started executing
        $cache = \Piwik\Tracker\Cache::getCacheGeneral();
        if ($minimumInterval <= 0 || empty($cache['isBrowserTriggerEnabled'])) {
            Common::printDebug("-> Scheduled tasks not running in Tracker: Browser archiving is disabled.");
            return;
        }
        $nextRunTime = $cache['lastTrackerCronRun'] + $minimumInterval;
        if (defined('DEBUG_FORCE_SCHEDULED_TASKS') && DEBUG_FORCE_SCHEDULED_TASKS || $cache['lastTrackerCronRun'] === \false || $nextRunTime < $now) {
            $cache['lastTrackerCronRun'] = $now;
            \Piwik\Tracker\Cache::setCacheGeneral($cache);
            Option::set('lastTrackerCronRun', $cache['lastTrackerCronRun']);
            Common::printDebug('-> Scheduled Tasks: Starting...');
            $invokeScheduledTasksUrl = "?module=API&format=csv&convertToUnicode=0&method=CoreAdminHome.runScheduledTasks&trigger=archivephp";
            $cliMulti = new CliMulti();
            $cliMulti->runAsSuperUser();
            $responses = $cliMulti->request(array($invokeScheduledTasksUrl));
            $resultTasks = reset($responses);
            Common::printDebug($resultTasks);
            Common::printDebug('Finished Scheduled Tasks.');
        } else {
            Common::printDebug("-> Scheduled tasks not triggered.");
        }
        Common::printDebug("Next run will be from: " . date('Y-m-d H:i:s', $nextRunTime) . ' UTC');
    }
}
