55 строки
1.6 KiB
PHP
55 строки
1.6 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* @copyright 2021 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author 2021 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OCA\Mail;
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use Horde_Imap_Client_Ids;
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use function array_slice;
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use function array_splice;
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use function max;
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use function strlen;
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function array_flat_map(callable $map, array $data): array {
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return array_merge([], ...array_map($map, $data));
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}
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/**
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* @param int[] $uids
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* @return Horde_Imap_Client_Ids[]
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*/
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function chunk_uid_sequence(array $uids, int $bytes): array {
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$chunks = [];
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while ($uids !== []) {
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$take = count($uids);
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while (strlen((new Horde_Imap_Client_Ids(array_slice($uids, 0, $take)))->tostring) >= $bytes) {
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$take = (int)($take * 0.75);
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}
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$chunks[] = new Horde_Imap_Client_Ids(
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array_splice($uids, 0, max($take, 1))
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);
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}
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return $chunks;
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}
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