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<?php
/**
 * Report number of jobs currently waiting in master database.
 *
 * Based on runJobs.php
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 * @ingroup Maintenance
 * @author Tim Starling
 * @author Antoine Musso
 */
require_once __DIR__ . '/Maintenance.php';
/**
 * Maintenance script that reports the number of jobs currently waiting
 * in master database.
 *
 * @ingroup Maintenance
 */
class ShowJobs extends Maintenance {
    protected static $stateMethods = [
        'unclaimed' => 'getAllQueuedJobs',
        'delayed'   => 'getAllDelayedJobs',
        'claimed'   => 'getAllAcquiredJobs',
        'abandoned' => 'getAllAbandonedJobs',
    ];
    public function __construct() {
        parent::__construct();
        $this->addDescription( 'Show number of jobs waiting in master database' );
        $this->addOption( 'group', 'Show number of jobs per job type' );
        $this->addOption( 'list', 'Show a list of all jobs instead of counts' );
        $this->addOption( 'type', 'Only show/count jobs of a given type', false, true );
        $this->addOption( 'status', 'Filter list by state (unclaimed,delayed,claimed,abandoned)' );
        $this->addOption( 'limit', 'Limit of jobs listed' );
    }
    public function execute() {
        $typeFilter = $this->getOption( 'type', '' );
        $stateFilter = $this->getOption( 'status', '' );
        $stateLimit = (float)$this->getOption( 'limit', INF );
        $group = JobQueueGroup::singleton();
        $filteredTypes = $typeFilter
            ? [ $typeFilter ]
            : $group->getQueueTypes();
        $filteredStates = $stateFilter
            ? array_intersect_key( self::$stateMethods, [ $stateFilter => 1 ] )
            : self::$stateMethods;
        if ( $this->hasOption( 'list' ) ) {
            $count = 0;
            foreach ( $filteredTypes as $type ) {
                $queue = $group->get( $type );
                foreach ( $filteredStates as $state => $method ) {
                    foreach ( $queue->$method() as $job ) {
                        /** @var Job $job */
                        $this->output( $job->toString() . " status=$state\n" );
                        if ( ++$count >= $stateLimit ) {
                            return;
                        }
                    }
                }
            }
        } elseif ( $this->hasOption( 'group' ) ) {
            foreach ( $filteredTypes as $type ) {
                $queue = $group->get( $type );
                $delayed = $queue->getDelayedCount();
                $pending = $queue->getSize();
                $claimed = $queue->getAcquiredCount();
                $abandoned = $queue->getAbandonedCount();
                $active = max( 0, $claimed - $abandoned );
                if ( ( $pending + $claimed + $delayed + $abandoned ) > 0 ) {
                    $this->output(
                        "{$type}$pending queued; " .
                        "$claimed claimed ($active active, $abandoned abandoned); " .
                        "$delayed delayed\n"
                    );
                }
            }
        } else {
            $count = 0;
            foreach ( $filteredTypes as $type ) {
                $count += $group->get( $type )->getSize();
            }
            $this->output( "$count\n" );
        }
    }
}
$maintClass = ShowJobs::class;
require_once RUN_MAINTENANCE_IF_MAIN;