<?php

/**
* @package   s9e\TextFormatter
* @copyright Copyright (c) The s9e authors
* @license   http://www.opensource.org/licenses/mit-license.php The MIT License
*/
namespace s9e\TextFormatter\Plugins\Censor;

use s9e\TextFormatter\Plugins\ParserBase;

class Parser extends ParserBase
{
	/**
	* {@inheritdoc}
	*/
	public function parse($text, array $matches)
	{
		$tagName      = $this->config['tagName'];
		$attrName     = $this->config['attrName'];
		$replacements = $this->config['replacements'] ?? [];
		foreach ($matches as $m)
		{
			if ($this->isAllowed($m[0][0]))
			{
				continue;
			}

			$tag = $this->parser->addSelfClosingTag($tagName, $m[0][1], strlen($m[0][0]));
			foreach ($replacements as list($regexp, $replacement))
			{
				if (preg_match($regexp, $m[0][0]))
				{
					$tag->setAttribute($attrName, $replacement);
					break;
				}
			}
		}
	}

	/**
	* Test whether given word is allowed
	*
	* @param  string $word
	* @return bool
	*/
	protected function isAllowed($word)
	{
		return (isset($this->config['allowed']) && preg_match($this->config['allowed'], $word));
	}
}