93 lines
2.7 KiB
PHP
93 lines
2.7 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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use App\Set\SetLevelRepository;
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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 SetLevelRepository $setLevelRepository,
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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(GetSetLayoutRequest $request): SetLayout
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{
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$set = $this->setRepository->find($request->setId);
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if ($set === null) {
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throw new NotFoundException('set not found');
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}
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$elements = $this->elementRepository->findBySet($set);
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$elementsByParentId = [];
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$elementCountsByLevelId = [];
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foreach ($elements as $element) {
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$parentId = $element->getParentElement()?->getId() ?? 0;
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$elementsByParentId[$parentId][] = $element;
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$levelId = $element->getLevel()->getId();
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$elementCountsByLevelId[$levelId]
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= ($elementCountsByLevelId[$levelId] ?? 0) + 1;
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}
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foreach ($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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$layoutLevels = [];
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foreach ($this->setLevelRepository->findBySet($set) as $level) {
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$layoutLevels[] = new SetLayoutLevel(
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level: $level,
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elementCount: $elementCountsByLevelId[$level->getId()] ?? 0,
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);
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}
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return new SetLayout(
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set: $set,
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levels: $layoutLevels,
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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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