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<?php
namespace Providers;
require_once('JsonFeed.php');
require_once('Item.php');
class Substack extends \Providers\JsonFeed {
protected function _getFeedUrl($feed) {
return sprintf('https://%s.substack.com/api/v1/posts', $feed);
}
protected function _getCachePath() {
return '../cache/substack.%s';
}
protected function _parseFeedContent($feed) {
return $feed;
}
protected function _mapItems($content) {
$items = [];
foreach ($content as $item) {
$itemObject = new Item();
$itemObject->ID = sprintf($this->feedUrl . $item->id);
$itemObject->Title = $item->title;
if ($item->subtitle) {
$itemObject->Title .= ' | ' . $item->subtitle;
}
$itemObject->Time = $item->post_date;
$itemObject->Text = $item->truncated_body_text;
$itemObject->Link = $item->canonical_url;
$itemObject->Author = $item->publishedBylines[0]->name;
$items[] = $itemObject;
}
return $items;
}
public function title() {
$cacheFile = sprintf($this->_getCachePath() . '.title', $this->_feed);
if (!file_exists($cacheFile)) {
$this->_fetchItems();
}
if ($this->_feedJson) {
$title = $this->_feedJson[0]->publishedBylines[0]->publicationUsers[0]->publication->name;
file_put_contents($cacheFile, $title);
return $title;
} else {
return file_get_contents($cacheFile);
}
}
}
?>
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