Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Translation\Catalogue;
Chris@0: 
Chris@0: /**
Chris@0:  * Target operation between two catalogues:
Chris@0:  * intersection = source ∩ target = {x: x ∈ source ∧ x ∈ target}
Chris@0:  * all = intersection ∪ (target ∖ intersection) = target
Chris@0:  * new = all ∖ source = {x: x ∈ target ∧ x ∉ source}
Chris@0:  * obsolete = source ∖ all = source ∖ target = {x: x ∈ source ∧ x ∉ target}
Chris@0:  * Basically, the result contains messages from the target catalogue.
Chris@0:  *
Chris@0:  * @author Michael Lee <michael.lee@zerustech.com>
Chris@0:  */
Chris@0: class TargetOperation extends AbstractOperation
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function processDomain($domain)
Chris@0:     {
Chris@17:         $this->messages[$domain] = [
Chris@17:             'all' => [],
Chris@17:             'new' => [],
Chris@17:             'obsolete' => [],
Chris@17:         ];
Chris@0: 
Chris@0:         // For 'all' messages, the code can't be simplified as ``$this->messages[$domain]['all'] = $target->all($domain);``,
Chris@0:         // because doing so will drop messages like {x: x ∈ source ∧ x ∉ target.all ∧ x ∈ target.fallback}
Chris@0:         //
Chris@17:         // For 'new' messages, the code can't be simplified as ``array_diff_assoc($this->target->all($domain), $this->source->all($domain));``
Chris@0:         // because doing so will not exclude messages like {x: x ∈ target ∧ x ∉ source.all ∧ x ∈ source.fallback}
Chris@0:         //
Chris@17:         // For 'obsolete' messages, the code can't be simplified as ``array_diff_assoc($this->source->all($domain), $this->target->all($domain))``
Chris@0:         // because doing so will not exclude messages like {x: x ∈ source ∧ x ∉ target.all ∧ x ∈ target.fallback}
Chris@0: 
Chris@0:         foreach ($this->source->all($domain) as $id => $message) {
Chris@0:             if ($this->target->has($id, $domain)) {
Chris@0:                 $this->messages[$domain]['all'][$id] = $message;
Chris@17:                 $this->result->add([$id => $message], $domain);
Chris@0:                 if (null !== $keyMetadata = $this->source->getMetadata($id, $domain)) {
Chris@0:                     $this->result->setMetadata($id, $keyMetadata, $domain);
Chris@0:                 }
Chris@0:             } else {
Chris@0:                 $this->messages[$domain]['obsolete'][$id] = $message;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         foreach ($this->target->all($domain) as $id => $message) {
Chris@0:             if (!$this->source->has($id, $domain)) {
Chris@0:                 $this->messages[$domain]['all'][$id] = $message;
Chris@0:                 $this->messages[$domain]['new'][$id] = $message;
Chris@17:                 $this->result->add([$id => $message], $domain);
Chris@0:                 if (null !== $keyMetadata = $this->target->getMetadata($id, $domain)) {
Chris@0:                     $this->result->setMetadata($id, $keyMetadata, $domain);
Chris@0:                 }
Chris@0:             }
Chris@0:         }
Chris@0:     }
Chris@0: }