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<?php
// Icinga Business Process Modelling | (c) 2023 Icinga GmbH | GPLv2
namespace Icinga\Module\Businessprocess\Common;
use Icinga\Module\Businessprocess\BpNode;
use Icinga\Module\Businessprocess\Node;
use InvalidArgumentException;
use ipl\Stdlib\Str;
trait Sort
{
/** @var ?string Current sort specification */
protected $sort;
/** @var ?callable Actual sorting function */
protected $sortFn;
/**
* Get the sort specification
*
* @return ?string
*/
public function getSort(): ?string
{
return $this->sort;
}
/**
* Set the sort specification
*
* @param ?string $sort
*
* @return $this
*
* @throws InvalidArgumentException When sorting according to the specified specification is not possible
*/
public function setSort(?string $sort): self
{
if (empty($sort)) {
return $this;
}
list($sortBy, $direction) = Str::symmetricSplit($sort, ' ', 2, 'asc');
switch ($sortBy) {
case 'manual':
if ($direction === 'asc') {
$this->sortFn = function (array &$nodes) {
$firstNode = reset($nodes);
if ($firstNode instanceof BpNode && $firstNode->getDisplay() > 0) {
$nodes = self::applyManualSorting($nodes);
}
// Child nodes don't need to be ordered in this case, their implicit order is significant
};
} else {
$this->sortFn = function (array &$nodes) {
$firstNode = reset($nodes);
if ($firstNode instanceof BpNode && $firstNode->getDisplay() > 0) {
uasort($nodes, function (BpNode $a, BpNode $b) {
return $b->getDisplay() <=> $a->getDisplay();
});
} else {
$nodes = array_reverse($nodes);
}
};
}
break;
case 'display_name':
if ($direction === 'asc') {
$this->sortFn = function (array &$nodes) {
uasort($nodes, function (Node $a, Node $b) {
return strnatcasecmp(
$a->getAlias() ?? $a->getName(),
$b->getAlias() ?? $b->getName()
);
});
};
} else {
$this->sortFn = function (array &$nodes) {
uasort($nodes, function (Node $a, Node $b) {
return strnatcasecmp(
$b->getAlias() ?? $b->getName(),
$a->getAlias() ?? $a->getName()
);
});
};
}
break;
case 'state':
if ($direction === 'asc') {
$this->sortFn = function (array &$nodes) {
uasort($nodes, function (Node $a, Node $b) {
return $a->getSortingState() <=> $b->getSortingState();
});
};
} else {
$this->sortFn = function (array &$nodes) {
uasort($nodes, function (Node $a, Node $b) {
return $b->getSortingState() <=> $a->getSortingState();
});
};
}
break;
default:
throw new InvalidArgumentException(sprintf(
"Can't sort by %s. It's only possible to sort by manual order, display_name or state",
$sortBy
));
}
$this->sort = $sort;
return $this;
}
/**
* Sort the given nodes as specified by {@see setSort()}
*
* If {@see setSort()} has not been called yet, the default sort specification is used
*
* @param array $nodes
*
* @return array
*/
public function sort(array $nodes): array
{
if (empty($nodes)) {
return $nodes;
}
if ($this->sortFn !== null) {
call_user_func_array($this->sortFn, [&$nodes]);
}
return $nodes;
}
/**
* Apply manual sort order on the given process nodes
*
* @param array $bpNodes
*
* @return array
*/
public static function applyManualSorting(array $bpNodes): array
{
uasort($bpNodes, function (BpNode $a, BpNode $b) {
return $a->getDisplay() <=> $b->getDisplay();
});
return $bpNodes;
}
}
|
