77 lines
2 KiB
PHP
77 lines
2 KiB
PHP
<?php
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namespace App\Set\UseCases\GetSetLayout;
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use App\Element\Element;
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use App\Element\ElementRepository;
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use App\Exceptions\NotFoundException;
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use App\Set\SetRepository;
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class GetSetLayout
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{
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public function __construct(
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private SetRepository $setRepository,
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private ElementRepository $elementRepository,
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) {}
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/**
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* @throws NotFoundException
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*/
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public function execute(int $setId): SetLayout
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{
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$set = $this->setRepository->find($setId);
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if ($set === null) {
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throw new NotFoundException('set not found');
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}
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$elementsByParentId = [];
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foreach ($this->elementRepository->findBySet($set) as $element) {
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$parentId = $element->getParentElement()?->getId() ?? 0;
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$elementsByParentId[$parentId][] = $element;
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}
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foreach ($elementsByParentId as &$siblings) {
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usort($siblings, function (
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Element $first,
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Element $second,
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): int {
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$positionComparison = $first->getPosition()
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<=> $second->getPosition();
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if ($positionComparison !== 0) {
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return $positionComparison;
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}
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return $first->getId() <=> $second->getId();
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});
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}
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unset($siblings);
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return new SetLayout(
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set: $set,
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elements: $this->buildNodes(0, $elementsByParentId),
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);
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}
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/**
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* @param array<int, list<Element>> $elementsByParentId
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* @return list<ElementLayoutNode>
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*/
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private function buildNodes(
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int $parentId,
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array $elementsByParentId,
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): array {
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$nodes = [];
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foreach ($elementsByParentId[$parentId] ?? [] as $element) {
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$nodes[] = new ElementLayoutNode(
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element: $element,
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children: $this->buildNodes(
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$element->getId(),
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$elementsByParentId,
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),
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);
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}
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return $nodes;
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}
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}
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