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<?php |
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/** |
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* Base daft objects. |
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* |
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* @author SignpostMarv |
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*/ |
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declare(strict_types=1); |
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namespace SignpostMarv\DaftObject; |
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class InefficientDaftNestedRebuild |
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{ |
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/** |
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* @var DaftNestedWriteableObjectTree |
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*/ |
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private $tree; |
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public function __construct(DaftNestedWriteableObjectTree $tree) |
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{ |
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$this->tree = $tree; |
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} |
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public function RebuildTree() : void |
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{ |
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$parentIdXref = [ |
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(array) $this->tree->GetNestedObjectTreeRootId(), |
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]; |
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/** |
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* @var array<int, array<int, DaftNestedWriteableObject>> $xRefChildren |
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*/ |
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$xRefChildren = [ |
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[], |
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]; |
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/** |
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* @var array<int, scalar|scalar[]> $idXref |
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*/ |
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$idXref = []; |
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$tree = $this->tree->RecallDaftNestedObjectFullTree(); |
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usort($tree, function (DaftNestedWriteableObject $a, DaftNestedWriteableObject $b) : int { |
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return $this->tree->CompareObjects($a, $b); |
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}); |
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/** |
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* @var DaftNestedWriteableObject $leaf |
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*/ |
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foreach ($tree as $i => $leaf) { |
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$leafParentId = $leaf->ObtainDaftNestedObjectParentId(); |
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$pos = array_search($leafParentId, $parentIdXref, true); |
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if (false === $pos) { |
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$parentIdXref[] = $leafParentId; |
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/** |
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* @var int $pos |
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*/ |
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$pos = array_search($leafParentId, $parentIdXref, true); |
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$xRefChildren[$pos] = []; |
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} |
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if ( ! in_array($leaf, $xRefChildren[$pos], true)) { |
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$xRefChildren[$pos][] = $leaf; |
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} |
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if ( ! in_array($leaf->GetId(), $idXref, true)) { |
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/** |
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* @var scalar|scalar[] $leafId |
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*/ |
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$leafId = $leaf->GetId(); |
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$idXref[] = $leafId; |
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} |
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$leaf->SetIntNestedLeft(0); |
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$leaf->SetIntNestedRight(0); |
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$leaf->SetIntNestedLevel(0); |
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$tree[$i] = $this->tree->StoreThenRetrieveFreshLeaf($leaf); |
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} |
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$n = 0; |
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/** |
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* @var DaftNestedWriteableObject $rootLeaf |
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*/ |
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foreach ($xRefChildren[0] as $rootLeaf) { |
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$n = $this->InefficientRebuild( |
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$rootLeaf, |
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0, |
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$n, |
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$parentIdXref, |
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$idXref, |
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$xRefChildren |
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); |
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} |
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} |
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protected function InefficientRebuild( |
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DaftNestedWriteableObject $leaf, |
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int $level, |
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int $n, |
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array $parentIds, |
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array $ids, |
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array $children |
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) : int { |
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/** |
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* @var scalar|scalar[] $id |
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*/ |
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$id = $leaf->GetId(); |
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$leaf->SetIntNestedLevel($level); |
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$leaf->SetIntNestedLeft($n); |
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++$n; |
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/** |
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* @var int|false $parentPos |
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*/ |
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$parentPos = array_search((array) $id, $parentIds, true); |
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if (false !== $parentPos) { |
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/** |
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* @var DaftNestedWriteableObject $childLeaf |
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*/ |
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foreach ($children[$parentPos] as $childLeaf) { |
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$n = $this->InefficientRebuild( |
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$childLeaf, |
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$level + 1, |
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$n, |
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$parentIds, |
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$ids, |
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$children |
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); |
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} |
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} |
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$leaf->SetIntNestedRight($n); |
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$this->tree->StoreThenRetrieveFreshLeaf($leaf); |
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return $n + 1; |
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} |
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} |
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