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<?php |
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/** |
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* This file is part of slick/configuration |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slick\Configuration; |
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use JetBrains\PhpStorm\Pure; |
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use Slick\Configuration\Common\PriorityList; |
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use Slick\Configuration\Driver\CommonDriverMethods; |
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/** |
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* PriorityConfigurationChain |
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* |
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* @package Slick\Configuration |
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*/ |
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class PriorityConfigurationChain implements ConfigurationChainInterface |
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{ |
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/** |
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* @var PriorityList |
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*/ |
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private PriorityList $priorityList; |
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private bool $dirty = true; |
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use CommonDriverMethods { |
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get as private baseGet; |
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set as private baseSet; |
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} |
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/** |
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* Creates a Priority Configuration Chain |
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*/ |
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public function __construct() |
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{ |
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$this->priorityList = new PriorityList(); |
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} |
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/** |
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* Returns the value store with provided key or the default value. |
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* |
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* @param string $key The key used to store the value in configuration |
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* @param mixed|null $default The default value if no value was stored. |
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* |
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* @return mixed The stored value or the default value if key |
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* was not found. |
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*/ |
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public function get(string $key, mixed $default = null): mixed |
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{ |
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if ($this->dirty) { |
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$this->mergeValues(); |
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} |
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return $this->baseGet($key, $default); |
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} |
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public function set(string $key, mixed $value): self |
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{ |
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if ($this->dirty) { |
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$this->mergeValues(); |
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} |
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$this->baseSet($key, $value); |
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return $this; |
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} |
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/** |
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* Add a configuration driver to the chain |
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* |
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* The configuration driver will be placed according to its priority. |
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* Highest priority will be verified first |
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* |
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* @param ConfigurationInterface $config |
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* @param integer $priority |
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* |
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* @return ConfigurationChainInterface self |
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*/ |
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public function add(ConfigurationInterface $config, int $priority = 0): ConfigurationChainInterface |
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{ |
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$this->priorityList->insert($config, $priority); |
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$this->dirty = true; |
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return $this; |
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} |
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/** |
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* Returns the internal configuration driver chain |
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* |
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* @return PriorityList |
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*/ |
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public function priorityList(): PriorityList |
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{ |
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return $this->priorityList; |
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} |
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private function mergeValues(): void |
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{ |
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$this->dirty = false; |
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$data = []; |
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$elements = array_reverse($this->priorityList->asArray()); |
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foreach ($elements as $element) { |
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$data = $this->mergeArrays($data, $element->asArray()); |
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} |
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$this->data = $data; |
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} |
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/** |
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* Merges two arrays recursively, overriding values from the default array with |
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* values from the custom array. |
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* |
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* @param array<string, mixed> $default The default array. |
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* @param array<string, mixed> $custom The custom array. |
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* |
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* @return array<string, mixed> The merged array. |
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*/ |
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private function mergeArrays(array $default, array $custom): array |
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{ |
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$base = []; |
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$names = []; |
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foreach ($default as $name => $value) { |
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$isPresent = array_key_exists($name, $custom); |
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$names[] = $name; |
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if (is_array($value) && $isPresent) { |
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$base[$name] = $this->mergeArrays($value, $custom[$name]); |
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continue; |
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} |
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$base[$name] = $isPresent ? $custom[$name] : $value; |
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} |
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foreach ($custom as $other => $value) { |
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if (!in_array($other, $names)) { |
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$base[$other] = $value; |
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} |
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} |
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return $base; |
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} |
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} |
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slickframework /
configuration
