<?php

namespace Dflydev\PlaceholderResolver;

use Dflydev\PlaceholderResolver\DataSource\DataSourceInterface;

class RegexPlaceholderResolver extends AbstractPlaceholderResolver
{
    /** @var PlaceholderResolverCallback */
    private $placeholderResolverCallback;

    /** @var string */
    private $pattern;

    /**
     * Constructor
     *
     * @param DataSourceInterface $dataSource
     * @param string|null         $placeholderPrefix
     * @param string|null         $placeholderSuffix
     */
    public function __construct(DataSourceInterface $dataSource, $placeholderPrefix = '${', $placeholderSuffix = '}')
    {
        $this->placeholderResolverCallback = new RegexPlaceholderResolverCallback($dataSource);
        $placeholderPrefix = preg_quote($placeholderPrefix);
        $placeholderSuffix = preg_quote($placeholderSuffix);
        $this->pattern = "/{$placeholderPrefix}([a-zA-Z0-9\.\(\)_\:]+?){$placeholderSuffix}/";
    }

    /**
     * {@inheritdoc}
     */
    public function resolvePlaceholder($placeholder)
    {
        if ($this->getCache()->exists($placeholder)) {
            return $this->getCache()->get($placeholder);
        }

        $value = $placeholder;
        $counter = 0;

        while ($counter++ < $this->maxReplacementDepth) {
            $newValue = preg_replace_callback(
                $this->pattern,
                array($this->placeholderResolverCallback, 'callback'),
                $value
            );
            if ($newValue === $value) { break; }
            $value = $newValue;
        }

        $this->getCache()->set($placeholder, $value);

        return $value;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTg0NzE3MjQ1OTAxOTgwNyA5NDg5ODQ2MzY4OTg3OTkgOTAwMDUxMDg5OTU0MTUyNg==