public function parse($url)
{
$chunks = parse_url($url);
if ($chunks['path'] !== Urls::URL_ALBUM) {
$this->logger->error('Unknown URL received');
return;
}
$host = $chunks['host'];
$schema = $chunks['scheme'];
$this->logger->info('Resolved host and schema', ['host' => $host, 'schema' => $schema]);
$this->logger->info('Fetching url', ['url' => $url]);
$response = $this->guzzle->get($url);
$this->logger->info('Fetched first page', ['url' => $url]);
$crawler = new Crawler((string) $response->getBody());
$links = $crawler->filter(Selectors::SELECTOR_PAGINATION_NUMBER_LINKS);
$pages = [];
for ($i = 0; $i < $crawler->count(); $i++) {
$link = $links->eq($i);
$chunks = parse_url($link->attr('href'));
parse_str($chunks['query'], $query);
$pages[] = $query['page'];
}
$this->logger->info('', ['pages' => $pages]);
}
/**
* Return the field's value
*
* @param $node
* @param $defaultValue
* @param $callback
* @param string $funcName
* @param string $funcParam
*
* @return mixed
*/
private function getFieldValue(Crawler $node, $defaultValue, $callback, $funcName = 'text', $funcParam = '')
{
if ($node->count()) {
return $callback($node->{$funcName}($funcParam));
}
return $defaultValue;
}
private function getPaginationInfo(Crawler $info)
{
$result = new \stdClass();
switch ($info->count()) {
case 0:
// no results
$result->total_results = 0;
$result->results_per_page = 10;
// (last item - first) + 1 => Items 21 -> 40 => 40-21+1 = 20 items.
$result->num_pages = 0;
$result->first_on_page = 0;
$result->last_on_page = 0;
$result->current_page = 0;
break;
case 1:
$aux = explode(PHP_EOL, $info->text());
$info = array_pop($aux);
$info = explode(' ', $info);
$result->total_results = intval($info[4]);
$result->results_per_page = intval($info[2]) - intval($info[0]) + 1;
// (last item - first) + 1 => Items 21 -> 40 => 40-21+1 = 20 items.
$result->num_pages = intval(ceil($result->total_results / $result->results_per_page));
$result->first_on_page = intval($info[0]);
$result->last_on_page = intval($info[2]);
$result->current_page = intval(ceil($result->first_on_page / $result->results_per_page));
break;
}
return $result;
}
/**
* Length of items in document
*
* @group Iterator
*/
public function count()
{
return $this->crawler->count();
}