';
}

ignore_user_abort();
ini_set('max_execution_time', 300);
ob_end_flush();
gc_enable();

$Cache->InternalCache = false; // We don't want PHP to cache all results internally
$DB->query("TRUNCATE TABLE torrents_peerlists_compare");
$DB->query("
  INSERT INTO torrents_peerlists_compare
  SELECT ID, GroupID, Seeders, Leechers, Snatched
  FROM torrents
  ON DUPLICATE KEY UPDATE
    Seeders = VALUES(Seeders),
    Leechers = VALUES(Leechers),
    Snatches = VALUES(Snatches)");
$DB->query("
  CREATE TEMPORARY TABLE tpc_temp
    (TorrentID int, GroupID int, Seeders int, Leechers int, Snatched int,
  PRIMARY KEY (GroupID, TorrentID))");
$DB->query("
  INSERT INTO tpc_temp
  SELECT t2.*
  FROM torrents_peerlists AS t1
    JOIN torrents_peerlists_compare AS t2
  USING(TorrentID)
  WHERE t1.Seeders != t2.Seeders
    OR t1.Leechers != t2.Leechers
    OR t1.Snatches != t2.Snatches");

$StepSize = 30000;
$DB->query("
  SELECT *
  FROM tpc_temp
  ORDER BY GroupID ASC, TorrentID ASC
  LIMIT $StepSize");

$RowNum = 0;
$LastGroupID = 0;
$UpdatedKeys = $UncachedGroups = 0;
list($TorrentID, $GroupID, $Seeders, $Leechers, $Snatches) = $DB->next_record(MYSQLI_NUM, false);

while ($TorrentID) {
    if ($LastGroupID != $GroupID) {
        $CachedData = $Cache->get_value("torrent_group_$GroupID");
        if ($CachedData !== false) {
            if (isset($CachedData['ver']) && $CachedData['ver'] == Cache::GROUP_VERSION) {
                $CachedStats = &$CachedData['d']['Torrents'];
            }
        } else {
            $UncachedGroups++;
        }
        $LastGroupID = $GroupID;
    }

    while ($LastGroupID == $GroupID) {
        $RowNum++;
        if (isset($CachedStats) && is_array($CachedStats[$TorrentID])) {
            $OldValues = &$CachedStats[$TorrentID];
            $OldValues['Seeders'] = $Seeders;
            $OldValues['Leechers'] = $Leechers;
            $OldValues['Snatched'] = $Snatches;
            $Changed = true;
            unset($OldValues);
        }

        if (!($RowNum % $StepSize)) {
            $DB->query("
        SELECT *
        FROM tpc_temp
        WHERE GroupID > $GroupID
          OR (GroupID = $GroupID AND TorrentID > $TorrentID)
        ORDER BY GroupID ASC, TorrentID ASC
        LIMIT $StepSize");
        }
        $LastGroupID = $GroupID;
        list($TorrentID, $GroupID, $Seeders, $Leechers, $Snatches) = $DB->next_record(MYSQLI_NUM, false);
    }
    
    if ($Changed) {
        $Cache->cache_value("torrent_group_$LastGroupID", $CachedData, 0);
        unset($CachedStats);
        $UpdatedKeys++;
        $Changed = false;
    }
}
printf("Updated %d keys, skipped %d keys in %.6fs (%d kB memory)\n", $UpdatedKeys, $UncachedGroups, microtime(true) - $ScriptStartTime, memory_get_usage(true) >> 10);

$DB->query("TRUNCATE TABLE torrents_peerlists");
$DB->query("
  INSERT INTO torrents_peerlists
  SELECT *
  FROM torrents_peerlists_compare");

if (check_perms('admin_schedule')) {
    echo '
';
    View::show_footer();
}