VIPnytt/RobotsTxtParser

<?php
/**
 * vipnytt/RobotsTxtParser
 *
 * @link https://github.com/VIPnytt/RobotsTxtParser
 * @license https://github.com/VIPnytt/RobotsTxtParser/blob/master/LICENSE The MIT License (MIT)
 */

namespace vipnytt\RobotsTxtParser\Parser\Directives;

use vipnytt\RobotsTxtParser\Client\Directives\SitemapClient;
use vipnytt\RobotsTxtParser\Handler\RenderHandler;
use vipnytt\RobotsTxtParser\Parser\UriParser;
use vipnytt\RobotsTxtParser\RobotsTxtInterface;

/**
 * Class SitemapParser
 *
 * @package vipnytt\RobotsTxtParser\Parser\Directives
 */
class SitemapParser implements ParserInterface, RobotsTxtInterface
{
    /**
     * Sitemap array
     * @var string[]
     */
    private $sitemaps = [];

    /**
     * Sitemap constructor.
     */
    public function __construct()
    {
    }

    /**
     * Add
     *
     * @param string $line
     * @return bool
     */
    public function add($line)
    {
        $uriParser = new UriParser($line);
        $uri = $uriParser->encode();
        if (!$uriParser->validate() ||
            in_array($uri, $this->sitemaps)
        ) {
            return false;
        }
        $this->sitemaps[] = $uri;
        return true;
    }

    /**
     * Client
     *
     * @return SitemapClient
     */
    public function client()
    {
        return new SitemapClient($this->sitemaps);
    }

    /**
     * Render
     *
     * @param RenderHandler $handler
     * @return bool
     */
    public function render(RenderHandler $handler)
    {
        sort($this->sitemaps);
        foreach ($this->sitemaps as $sitemap) {
            $handler->add(self::DIRECTIVE_SITEMAP, $sitemap);
        }
        return true;
    }
}