<?php
namespace Infrastructure\Repository;
use ArrayIterator;
use Domain\Page;
use RuntimeException;
class PageRepository
{
/**
* @var array $pages
*/
protected $pages = [];
/**
* @param Page $page
*/
public function store(Page $page): void
{
$this->pages[$page->getUrl()] = $page;
}
/**
* @param string $url
*
* @return Page
*/
public function get(string $url): ?Page
{
return $this->pages[$url] ?? null;
}
/**
* Get Iterator for stored pages.
*
* @return ArrayIterator iterator.
*/
public function getPagesIterator(): ArrayIterator
{
return new ArrayIterator($this->pages);
}
/**
* Sort the contents of the repository using the uasort() function. Affects the crawl order
* of the contents of the repository using an iterator obtained from PageRepository :: getPagesIterator ().
*
* @param callable $compareFunction - callable function for uasort function.
* @throws RuntimeException
*/
public function order(callable $compareFunction): void
{
if (!uasort($this->pages, $compareFunction)) {
throw new RuntimeException('Error sorting results.');
}
}
}
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