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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Panel; |
| 6 | |
| 7 | final class CollectionPager |
| 8 | { |
| 9 | private function __construct( |
| 10 | public readonly int $total, |
| 11 | public readonly int $pageCount, |
| 12 | public readonly int $currentPage, |
| 13 | public readonly int $rangeStart, |
| 14 | public readonly int $rangeEnd, |
| 15 | public readonly ?string $previousUrl, |
| 16 | public readonly ?string $nextUrl, |
| 17 | ) {} |
| 18 | |
| 19 | public static function from(int $total, int $rowCount, CollectionUrls $urls): self |
| 20 | { |
| 21 | $query = $urls->query; |
| 22 | $pageCount = $query->limit > 0 ? max(1, (int) ceil($total / $query->limit)) : 1; |
| 23 | $currentPage = $query->limit > 0 |
| 24 | ? min($pageCount, (int) floor($query->offset / $query->limit) + 1) |
| 25 | : 1; |
| 26 | |
| 27 | return new self( |
| 28 | total: $total, |
| 29 | pageCount: $pageCount, |
| 30 | currentPage: $currentPage, |
| 31 | rangeStart: $total === 0 ? 0 : min($query->offset + 1, $total), |
| 32 | rangeEnd: min($query->offset + $rowCount, $total), |
| 33 | previousUrl: $query->offset > 0 |
| 34 | ? $urls->collection(['offset' => max(0, $query->offset - $query->limit)]) |
| 35 | : null, |
| 36 | nextUrl: ($query->offset + $query->limit) < $total |
| 37 | ? $urls->collection(['offset' => $query->offset + $query->limit]) |
| 38 | : null, |
| 39 | ); |
| 40 | } |
| 41 | } |