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1<?php
2namespace Apie\Core\Datalayers\Concerns;
3
4use Apie\Core\BoundedContext\BoundedContextId;
5use Apie\Core\Datalayers\Lists\PaginatedResult;
6use Apie\Core\Datalayers\Search\LazyLoadedListFilterer;
7use Apie\Core\Datalayers\Search\QuerySearch;
8use Apie\Core\Datalayers\ValueObjects\LazyLoadedListIdentifier;
9use Apie\Core\Entities\EntityInterface;
10use Apie\Core\Lists\ItemList;
11use Iterator;
12use ReflectionClass;
13
14/**
15 * @property LazyLoadedListFilterer $filterer
16 * @property BoundedContextId $boundedContextId
17 * @property ReflectionClass<EntityInterface> $class
18 */
19trait CreatePaginatedResultRuntime
20{
21    abstract public function getIterator(): Iterator;
22
23    public function toPaginatedResult(QuerySearch $search): PaginatedResult
24    {
25        $pageIndex = $search->getPageIndex();
26        $itemsPerPage = $search->getItemsPerPage();
27        $offset = 1+ $pageIndex * $itemsPerPage;
28        $endOffset = $offset + $itemsPerPage;
29        $filteredList = [];
30        $found = 0;
31        $totalCount = 0;
32        foreach ($this->getIterator() as $entity) {
33            assert($entity instanceof EntityInterface);
34            if ($this->filterer->appliesPermissions($entity, $search)) {
35                $added = $found < $endOffset && $this->filterer->appliesFiltering($entity, $search);
36                $totalCount++;
37                if ($added) {
38                    $found++;
39                    if ($found >= $offset && $found < $endOffset) {
40                        $filteredList[] = $entity;
41                    }
42                }
43            }
44        }
45        return new PaginatedResult(
46            LazyLoadedListIdentifier::createFrom($this->boundedContextId, $this->class),
47            $totalCount,
48            $found,
49            new ItemList($filteredList),
50            $pageIndex,
51            $itemsPerPage,
52            $search
53        );
54    }
55}