ModifiersApplier.php•2.92 kB
<?php
declare(strict_types=1);
namespace Butschster\ContextGenerator\Modifier;
use Psr\Log\LoggerInterface;
use Psr\Log\NullLogger;
final readonly class ModifiersApplier implements ModifiersApplierInterface
{
/**
* @param array<Modifier> $modifiers Modifiers to apply
* @param SourceModifierRegistry $registry Registry of modifier implementations
* @param LoggerInterface $logger PSR Logger instance
*/
public function __construct(
private array $modifiers,
private SourceModifierRegistry $registry = new SourceModifierRegistry(),
private LoggerInterface $logger = new NullLogger(),
) {}
public static function empty(SourceModifierRegistry $registry, ?LoggerInterface $logger = null): self
{
return new self(
modifiers: [],
registry: $registry,
logger: $logger ?? new NullLogger(),
);
}
public function withModifiers(array $modifiers): self
{
if (empty($modifiers)) {
return $this;
}
return new self(
modifiers: \array_merge($this->modifiers, $modifiers),
registry: $this->registry,
logger: $this->logger,
);
}
public function apply(string $content, string $filename): string
{
if (empty($this->modifiers)) {
return $content;
}
$this->logger->debug('Applying modifiers to content', [
'contentType' => $filename,
'modifierCount' => \count($this->modifiers),
]);
$originalLength = \strlen($content);
$modifiedContent = $content;
foreach ($this->modifiers as $modifierId) {
if (!$this->registry->has($modifierId)) {
$this->logger->warning('Modifier not found', [
'modifierId' => (string) $modifierId,
]);
continue;
}
$modifier = $this->registry->get($modifierId);
if (!$modifier->supports($filename)) {
$this->logger->debug('Modifier not applicable to content type', [
'modifierId' => (string) $modifierId,
'contentType' => $filename,
]);
continue;
}
$this->logger->debug('Applying modifier', [
'modifierId' => (string) $modifierId,
'contentType' => $filename,
]);
// Apply the modifier
$modifiedContent = $modifier->modify($modifiedContent, $modifierId->context);
$this->logger->debug('Modifier applied', [
'modifierId' => (string) $modifierId,
'contentType' => $filename,
'beforeLength' => $originalLength,
'afterLength' => \strlen($modifiedContent),
]);
}
return $modifiedContent;
}
}